2020-01-25 Tracking News

Contents on 25 January '20

Traffic Report -- fourteen objects
Radar Astrometry -- four objects
IAU Minor Planet Center
- NEOCP Activity -- 104 listings
- New MPECs -- 30 MPECs
Observers -- 43 observers
Impact Risk Monitoring -- sixteen objects
Chronology

Asteroid/Comet Connection (A/CC) Resources:

Consolidated Risk Tables - the CRT page
Ephemerides for risk-listed objects & close passers
News archive (old) & news image catalog (discontinued)
Object Links - mainly for radar targets & close passers (mostly discontinued)
Observing Campaigns (old)

The latest A/CC news is available via framed access, RSS news feed, or redirection.

Navigation tips: Use the << and >> arrows on the menus for each regular section (Observers, Risks, etc.) to move to the previous and next day's news for that section. Use the Index menu item to access specific days through a calendar interface. To keep track of what's new each day, watch the Chronology section.

Traffic Report on 25 January '20

Fourteen objects reported inside ten LD

There are fourteen visitors reported passing within ten lunar distances (LD) of our planet today. The nearest is newly announced intruder 2020 BH6, which moved in from 0.51 and out to 1.73 LD as it passed us at 0.18 LD and the Moon at 0.71 LD.

Neighborhood Traffic - sorted by Earth passage distance, grouped by 1.0, 2.41, 5.0 & 10.0 LD boundaries
Earth passage	I D	~Size	Distance today	Inside ten LD	Notes
0.18 LD today	2020 BH6	6 m	0.18 LD	Jan. 20 - 29	NEW, intruder today, Earth closest at 0510 UTC, Moon closest 0.71 LD at 1313 UTC - MPEC
0.69 LD Jan. 22	2020 BB5	4 m	6.02 to 8.01 LD	Jan. 17 - 26	intruder, NHATS target, risk - DOU
0.78 LD Jan. 20	2020 BK3	14 m	9.73 to 12.08 LD	Jan. 16 - 25	intruder, exits ten LD, risk - DOU

2.00 LD Jan. 21	2020 BB	7 m	3.33 to 4.02 LD	Jan. 9 - Feb. 2	NHATS target, risk - DOU

2.56 LD Jan. 23	2020 BB1	8 m	4.90 to 7.20 LD	Jan. 19 - 27
2.73 LD Jan. 14	2020 BH	8 m	8.76 to 9.49 LD	Jan. 1 - 26	NHATS target, risk - DOU
2.99 LD Jan. 14	2020 BS	9 m	9.94 to 10.84 LD	Jan. 4 - 25	NHATS target, exits ten LD - DOU
3.71 LD Jan. 10	2019 YF4	13 m	9.89 to 10.45 LD	Dec. 27 - today	NHATS target, exits ten LD

5.09 LD tomorrow	2020 BH3	21 m	5.14 from 5.57 LD	Jan. 20 - Feb. 1	NHATS target, risk - DOU
6.4 LD Jan. 19*	2020 BK	16 m	8.5 to 9.2 LD	Jan. 11 - 27	EPU +/- 12 mins.*, NHATS target
6.61 LD Jan. 21	2020 BS1	19 m	7.89 to 8.63 LD	Jan. 15 - 27	NHATS target - DOU
7.26 LD Jan. 22	2020 BF6	28 m	8.54 to 9.72 LD	Jan. 19 - 26	NEW - MPEC, DOU
7.74 LD yesterday	2020 BF1	20 m	7.78 to 7.95 LD	Jan. 18 - 30	NHATS target - DOU
8.32 LD today	2020 AK3	21 m	8.32 LD	Jan. 21 - 28	NHATS target, Earth closest at 0722 UTC - DOU

This report was generated at 2310 UTC with four discoveries, starting with two from late yesterday, inbound intruder 2020 BH6 (MPEC) and outbound 2020 BF6 (MPEC, DOU). From today we have two approaching objects: 2020 BV7 (MPEC) and 2020 BJ7 (MPEC). Today's DOU MPEC has follow-up for twenty close passers, including eleven with risk listings. There are three of these objects in the approach table below and nine in the active traffic table above, plus eight departed: 2020 BD5, 2020 BY, 2020 BD, 2019 YD3, 2019 YA1, and three risk-listed: 2020 BY1, 2020 AY1, 2019 YW2. We also have radar observation from mid-December of 2019 XO3 and the recovery of distant 2018 BU1 (DOU).

Approaching - sorted by 10-LD bubble entry date
Earth passage	I D	~Size	Distance today	Inside ten LD	Notes
6.83 LD Jan. 27	2020 BN3	29 m	10.38 from 15.86 LD	tomorrow - Jan. 28	DOU
1.2 LD Jan. 28*	2020 BJ7	8 m	10.7 from 15.2 LD	tomorrow - Jan. 30	NEW, EPU +/- 49 mins.* - MPEC
5.89 LD Jan. 30	2020 BV7	9 m	10.45 from 12.06 LD	tomorrow - Feb. 3	NEW - MPEC
6.89 LD Jan. 27	2020 BY4	20 m	11.45 from 15.52 LD	tomorrow - Jan. 29	risk - DOU
5.7 LD Jan. 31*	2020 BZ4	10 m	12.9 from 14.7 LD	Jan. 27 - Feb. 4	EPU +/- 16 mins.*, NHATS target
3.69 LD Feb. 4	2013 BA74	27 m	15.67 from 17.30 LD	Jan. 29 - Feb. 9
5.2 LD Feb. 9*	2020 BW5	17 m	31.1 from 33.3 LD	Feb. 5 - 14	EPU +/- 1.05 hours*, NHATS target, risk - DOU
* EPU = Earth passage uncertainty

Notes: Ten times the distance to the Moon (ten LD) has no astronomical importance but is a useful boundary for reporting about transient natural objects that approach our planet's gravitational sphere of influence (SOI), which has a radius of about 2.41 LD from Earth's center. This puts a focus on some of the most important and very best NEO observation work, representative of the much larger NEO discovery and tracking effort. "Distant" is used here to describe an object under observation that has come within ten LD since A/CC began this traffic reporting in 2007 but is not now so close. Object temporal distances are derived by A/CC from JPL Horizons data. See also current sky chart and object details (alt-details), ephemerides, and today's timeline.

Radar Astrometry on 25 January '20

Radar observation of four objects

The JPL Solar System Dynamics Group Radar Astrometry database has added or updated the following small-body radar observing work:

Data update noted at 0200 UTC when the database was dated 24 Jan.

2019 XQ3 from Arecibo (Dec. 19.39 velocity & 19.42 range)
2019 XO3 (close passer) from Arecibo (Dec. 19.45 velocity)
2019 UO from Arecibo (Dec. 26.87 range)

Data update noted at 0225 UTC when the database was dated 24 Jan.

2019 VK3 from Arecibo (2019 Nov. 11.08 velocity)

Photometry and some astrometry is needed for upcoming radar targets. See Arecibo and Goldstone schedules.

NEOCP Activity on 25 January '20

The MPC's NEO Confirmation Page has 104 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 104 objects listed. Of these, 52 were "one nighters." The Tracking News counted a total of 154 listings on the NEOCP on this day.

New MPECs on 25 January '20

Minor Planet Electronic Circulars

There were 30 MPECs posted this day from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2020-B145 time-stamped "03:17 UT" - 2020 BX6 - see below
MPEC 2020-B146 time-stamped "03:21 UT" - 2020 BY6 - see below
MPEC 2020-B147 time-stamped "03:25 UT" - 2020 BZ6 - see below
MPEC 2020-B148 time-stamped "12:12 UT" - Daily Orbit Update - see below
MPEC 2020-B149 time-stamped "14:35 UT" - 2020 BB7 - see below
MPEC 2020-B150 time-stamped "14:37 UT" - 2020 BC7 - see below
MPEC 2020-B151 time-stamped "14:40 UT" - 2020 BD7 - see below
MPEC 2020-B152 time-stamped "14:47 UT" - 2019 YG7 - see below
MPEC 2020-B153 time-stamped "17:54 UT" - 2020 BH7 - see below
MPEC 2020-B154 time-stamped "18:57 UT" - 2020 BJ7 - see below
MPEC 2020-B155 time-stamped "19:01 UT" - 2020 BK7 - see below
MPEC 2020-B156 time-stamped "19:03 UT" - 2020 BL7 - see below
MPEC 2020-B157 time-stamped "19:09 UT" - 2020 BM7 - see below
MPEC 2020-B158 time-stamped "19:11 UT" - 2020 BN7 - see below
MPEC 2020-B159 time-stamped "19:12 UT" - 2020 BO7 - see below
MPEC 2020-B160 time-stamped "19:14 UT" - 2020 BP7 - see below
MPEC 2020-B161 time-stamped "19:21 UT" - 2020 BQ7 - see below
MPEC 2020-B162 time-stamped "20:15 UT" - 2020 BR7 - see below
MPEC 2020-B163 time-stamped "20:30 UT" - 2020 BS7 - see below
MPEC 2020-B164 time-stamped "21:19 UT" - 2020 BV7 - see below
MPEC 2020-B165 time-stamped "21:19 UT" - 2020 BW7 - see below
MPEC 2020-B166 time-stamped "21:23 UT" - 2020 BX7 - see below
MPEC 2020-B167 time-stamped "21:25 UT" - 2020 BY7 - see below
MPEC 2020-B168 time-stamped "21:29 UT" - 2009 CE - see below
MPEC 2020-B169 time-stamped "21:42 UT" - 2020 BZ7 - see below
MPEC 2020-B170 time-stamped "21:48 UT" - 2020 BA8 - see below
MPEC 2020-B171 time-stamped "21:59 UT" - 2020 BB8 - see below
MPEC 2020-B172 time-stamped "22:01 UT" - 2020 BC8 - see below
MPEC 2020-B173 time-stamped "22:03 UT" - 2020 BD8 - see below
MPEC 2020-B174 time-stamped "22:26 UT" - 2020 BE8

MPEC 2020-B174 - "22:26 UT" - 2020 BE8

K20B08E 2020 BE8 (small asteroid, Earth MOID=5.3 LD, H=25.3 ~29m) was picked up at 0911 UT on 25 Jan. by ATLAS Mauna Loa, observing it at Jan. 25.38-41p4. This detection was confirmed by Pan-STARRS 2 (PS2) (2019 Oct. 25.43-46p4 at G=22.5-23.0, Nov. 2.37p1 at G=21.7, 29.31-36p4 at G=22.3-23.2 & Jan. 23.35-39p4 at G=19.17-23), Pan-STARRS 1 (PS1) (2019 Oct. 29.35-38p3 at G=22.3-8 & Nov. 26.28-30p2 at G=22.6), Schwarzschild Obs. (Jan. 25.72p2 & 25.79p3), and ROASTERR-1 (Jan. 25.84-86p3).

MPEC 2020-B173 - "22:03 UT" - 2020 BD8

K20B08D 2020 BD8 (risk listed, Q=4.033 AU, H=20.7 ~245m) was picked up at 0309 UT on 23 Jan. by the Mt. Lemmon Survey (MLS), observing it at Jan. 23.13-15p4 at G=21.6-22.1 and 23.24p3 at G=21.4. This detection was confirmed by Schwarzschild Obs. (Jan. 23.74-75p3 & 24.77-78p3), the Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) (Jan. 24.08-09p4 & 25.09-10p4), and Magdalena Ridge Obs. (MRO) (Jan. 24.09-13p4).

MPEC 2020-B172 - "22:01 UT" - 2020 BC8

K20B08C 2020 BC8 (risk listed, Q=4.113 AU, H=19.8 ~371m) was picked up at 0338 UT on 23 Jan. by MLS, observing it at Jan. 23.15-17p4. This detection was confirmed by Steward Obs. Mt. Lemmon Station (Jan. 23.28-29p4, 24.09p3 & 25.08-09p3), PS2 (Jan. 23.30-33p3), Visnjan Obs. (Jan. 23.75-76p3), Schwarzschild Obs. (Jan. 23.75-76p3, 24.73-74p3 & 25.81-82p2), KLENOT (Jan. 24.75-76p4), and GINOP-KHK (Jan. 25.85-86p2).

MPEC 2020-B171 - "21:59 UT" - 2020 BB8

K20B08B 2020 BB8 (i=38.3°, H=21.1 ~204m) was picked up at 0802 UT on 24 Jan. by PS1, observing it at Jan. 24.33-37p3 at w=22.1-5 and 25.51-53p3 at w=21.54-88. This detection was confirmed by PS2 (Jan. 22.51-54p4) and CSS-Kuiper (Jan. 25.32-33p4).

MPEC 2020-B170 - "21:48 UT" - 2020 BA8

K20B08A 2020 BA8 (small asteroid, H=22.6 ~102m) was picked up at 0822 UT on 24 Jan. by MLS, observing it at Jan. 24.35-36p4. This detection was confirmed by PS1 (Jan. 21.50-51p2 & 23.59-63p3), MRO (Jan. 24.39-41p4 & 25.26-28p4), CSS-Kuiper (Jan. 24.52p4), and Steward Mt. Lemmon Sta. (Jan. 25.34-35p3).

MPEC 2020-B169 - "21:42 UT" - 2020 BZ7

K20B07Z 2020 BZ7 (Q=4.667 AU, H=18.3 ~741m) was picked up at 0825 UT on 24 Jan. by MLS, observing it at Jan. 24.35-37p4. This detection was confirmed by PS2 (Dec. 29.57-59p3 & 29.65p1), Steward Mt. Lemmon Sta. (Jan. 24.50p4 & 25.31-32p3), and GINOP-KHK (Jan. 24.96p3).

MPEC 2020-B168 - "21:29 UT" - 2009 CE

K09C00E 2009 CE (H=24.2 ~49m, NHATS) from PS2 (Jan. 23.59-62p3), Schwarzschild Obs. (Jan. 24.05-06p4), Visnjan Obs. (Jan. 24.10-13p4), and PS1 (Jan. 25.58-60p3)

MPEC 2020-B167 - "21:25 UT" - 2020 BY7

K20B07Y 2020 BY7 (small asteroid, H=23.6 ~65m) was picked up at 0906 UT on 24 Jan. by MLS, observing it at Jan. 24.38-40p4 at G=21.6-22.2. This detection was confirmed by PS1 (Jan. 21.49-53p4), MRO (Jan. 24.43-45p4), and CSS-Kuiper (Jan. 24.53p4 & 25.34-35p4).

MPEC 2020-B166 - "21:23 UT" - 2020 BX7

K20B07X 2020 BX7 (small asteroid, Q=4.111 AU, H=24.7 ~39m) was picked up at 0802 UT on 24 Jan. by PS1, observing it at Jan. 23.37-41p4 at G=21.9-22.3, 24.33-37p4 at w=22.2-4, and 25.51-55p3 at w=21.85-22.09. This detection was confirmed by PS2 (Jan. 21.38-42p4 at G=21.6-22.4) and CSS-Kuiper (Jan. 25.30-31p4).

MPEC 2020-B165 - "21:19 UT" - 2020 BW7

K20B07W 2020 BW7 (small asteroid, H=26.8 ~15m) was picked up at 0811 UT on 25 Jan. by MLS, observing it at Jan. 25.34-36p4. This detection was confirmed by PS2 (Jan. 21.38-41p3 & 22.50-53p4), PS1 (Jan. 23.38-40p3 at G=21.2-9, 24.33-36p3 at G=21.3-6 & 25.51-55p4 at w=21.55-22.17), and CSS-Kuiper (Jan. 25.46-47p3 at G=21.6-22.4).

MPEC 2020-B164 - "21:19 UT" - 2020 BV7

K20B07V 2020 BV7 (Earth MOID=5.4 LD, H=28.0 ~9m) was picked up at 0910 UT on 25 Jan. by MLS, observing it at Jan. 25.38-40p4. This detection was confirmed by PS1 (Jan. 21.42-46p4 at G=21.5-22.4 & 22.41-44p3 at G=21.6-8), MRO (Jan. 25.47-50p4), and Steward Mt. Lemmon Sta. (Jan. 25.52-53p4).

MPEC 2020-B163 - "20:30 UT" - 2020 BS7

K20B07S 2020 BS7 (i=52.5°, Q=5.953 AU, H=18.1 ~812m) was picked up at 0158 UT on 19 Jan. by MLS, observing it at Jan. 19.08-10p4. This detection was confirmed by MRO (Jan. 19.12-14p4), McDonald Obs. (Jan. 19.14-15p4 & 20.07-08p4), Steward Mt. Lemmon Sta. (Jan. 19.19p4, 20.14p4, 23.12p3, 24.08p4 & 25.08p4), Visnjan Obs. (Jan. 19.73-74p5), SATINO-1 (Jan. 19.75-78p2 & 22.77-78p2), Great Shefford Obs. (Jan. 19.78-79p4 & 21.82-83p2), Schwarzschild Obs. (Jan. 20.80p3, 21.76p5, 21.87p3, 23.71p3, 24.72p3 & 25.79-80p3), Schiaparelli Obs. (Jan. 20.82-84p3), Dettelbach Vineyard Obs. (Jan. 21.72-73p3), KLENOT (Jan. 21.73p9 & 24.73p5), San Marcello Pistoiese Obs. (Jan. 22.87-88p3), Chante-Perdrix Obs. (Jan. 23.77-78p2), Hidetaka Sato via iTelescope Obs. Mayhill (Jan. 24.08p2), Farra d'Isonzo Obs. (Jan. 24.75-78p3), and GINOP-KHK (Jan. 25.79-80p3).

MPEC 2020-B162 - "20:15 UT" - 2020 BR7

K20B07R 2020 BR7 (H=20.8 ~234m) was picked up at 0540 UT on 23 Jan. by PS2, observing it at Jan. 23.24-28p3. This detection was confirmed by Schwarzschild Obs. (Jan. 23.72p4, 24.72-73p3 & 25.80-81p4), Visnjan Obs. (Jan. 23.73-74p4), San Marcello Pistoiese Obs. (Jan. 23.82-83p3), Schiaparelli Obs. (Jan. 23.94-96p2), Steward Mt. Lemmon Sta. (Jan. 24.12-13p4), and KLENOT (Jan. 24.74p4).

MPEC 2020-B161 - "19:21 UT" - 2020 BQ7

K20B07Q 2020 BQ7 (H=19.6 ~407m) was picked up at 0539 UT on 22 Jan. by PS2, observing it at Jan. 22.24-27p4. This detection was confirmed by Visnjan Obs. (Jan. 22.74-75p3), the Spacewatch 0.9m telescope (Jan. 23.13-14p3), Schwarzschild Obs. (Jan. 23.76-77p3 & 24.77p2), San Marcello Pistoiese Obs. (Jan. 23.79-81p3), Steward Mt. Lemmon Sta. (Jan. 24.11-12p4 & 25.12p3), and KLENOT (Jan. 24.76-77p5).

MPEC 2020-B160 - "19:14 UT" - 2020 BP7

K20B07P 2020 BP7 (small asteroid, Earth MOID=8.7 LD, H=24.3 ~47m) was picked up at 0855 UT on 23 Jan. by PS1, observing it at Jan. 23.37-40p3 at w=21.66-22.02 and 24.33-36p4 at G=21.5-9. This detection was confirmed by PS2 (Jan. 22.54p1 at G=22.4), CSS-Kuiper (Jan. 24.23-24p4 at G=21.6-22.1), and MRO (Jan. 25.30-32p4).

MPEC 2020-B159 - "19:12 UT" - 2020 BO7

K20B07O 2020 BO7 (small asteroid, H=23.8 ~59m) was picked up at 0855 UT on 23 Jan. by PS1, observing it at Jan. 23.37-39p3 at w=22.28-67. This detection was confirmed by PS2 (Jan. 22.50-52p3) and MRO (Jan. 24.18-20p4 at G=21.4-9 & 25.31-33p4 at G=21.5-22.2).

MPEC 2020-B158 - "19:11 UT" - 2020 BN7

K20B07N 2020 BN7 (small asteroid, H=23.6 ~65m) was picked up at 1218 UT on 23 Jan. by MLS, observing it at Jan. 23.51-56p8 at G=21.3-22.1. This detection was confirmed by Schwarzschild Obs. (Jan. 24.17-18p4), CSS-Kuiper (Jan. 24.41-42p4 at G=21.1-22.2), and Steward Mt. Lemmon Sta. (Jan. 25.39-40p4).

MPEC 2020-B157 - "19:09 UT" - 2020 BM7

K20B07M 2020 BM7 (small asteroid, H=24.0 ~54m) was picked up at 1427 UT on 23 Jan. by PS1, observing it at Jan. 23.59-62p3. This detection was confirmed by Visnjan Obs. (Jan. 24.06-07p3) and Spacewatch 0.9m (Jan. 25.46-47p2).

MPEC 2020-B156 - "19:03 UT" - 2020 BL7

K20B07L 2020 BL7 (small asteroid, H=24.9 ~35m) was picked up at 0754 UT on 23 Jan. by PS1, observing it at Jan. 23.33-36p3 at w=22.09-29. This detection was confirmed by CSS-Kuiper (Jan. 24.17-18p4 & 25.37p4).

MPEC 2020-B155 - "19:01 UT" - 2020 BK7

K20B07K 2020 BK7 (small asteroid, Earth MOID=9.1 LD, H=25.8 ~23m) was picked up at 1409 UT on 23 Jan. by PS2, observing it at Jan. 23.59-63p4. This detection was confirmed by Visnjan Obs. (Jan. 24.14-15p3) and MRO (Jan. 25.53-55p4).

MPEC 2020-B154 - "18:57 UT" - 2020 BJ7

K20B07J 2020 BJ7 (Earth MOID=1.1 LD, H=27.8 ~9m) was picked up at 0807 UT on 24 Jan. by PS1, observing it at Jan. 24.34-37p4. This detection was confirmed by MRO (Jan. 24.42-44p4) and MLS (Jan. 25.34-36p4).

MPEC 2020-B153 - "17:54 UT" - 2020 BH7

K20B07H 2020 BH7 (risk listed, Q=4.237 AU, H=27.8 ~9m) was picked up at 0753 UT on 24 Jan. by MLS, observing it at Jan. 24.33-34p4. This detection was confirmed by MRO (Jan. 24.36-38p4 at G=20.6-21.1 & 25.27-29p4 at G=21.1-22.2) and Steward Mt. Lemmon Sta. (Jan. 24.51p4 at G=20.5-21.4 & 25.30-31p4 at G=21.3-22.7).

MPEC 2020-B152 - "14:47 UT" - 2019 YG7

K19Y07G 2019 YG7 (Q=4.974 AU, H=18.6 ~645m) was picked up at 1422 UT on 19 Dec. by PS1, observing it at Dec. 19.60-63p4 at G=22.0-22.8, Jan. 19.38-40p3 at w=20.7-8, and 22.37-41p4 at w=20.94-21.06. This detection was confirmed by PS2 (Jan. 20.49-51p3) and the Zwicky Transient Facility (ZTF) (Jan. 23.27-28p2 & 24.28-29p2).

MPEC 2020-B151 - "14:40 UT" - 2020 BD7

K20B07D 2020 BD7 (small asteroid, H=25.0 ~34m) was picked up at 0922 UT on 23 Jan. by PS1, observing it at Jan. 23.39-45p6. This detection was confirmed by Schwarzschild Obs. (Jan. 24.14-15p4) and Steward Mt. Lemmon Sta. (Jan. 24.25-26p4 & 25.32-33p4).

MPEC 2020-B150 - "14:37 UT" - 2020 BC7

K20B07C 2020 BC7 (small asteroid, H=22.9 ~89m) was picked up at 0809 UT on 24 Jan. by PS1, observing it at Jan. 23.37-40p5 and 24.34-36p3. This detection was confirmed by PS2 (Jan. 21.38-41p4 & 22.52-53p2), MRO (Jan. 24.42-44p3), MLS (Jan. 25.32-34p3), and Steward Mt. Lemmon Sta. (Jan. 25.38p4 at G=21.7-22.3).

MPEC 2020-B149 - "14:35 UT" - 2020 BB7

K20B07B 2020 BB7 (small asteroid, Q=4.059 AU, H=24.7 ~39m) was picked up at 0924 UT on 23 Jan. by MLS, observing it at Jan. 23.39-41p4 at G=21.8-22.1, 23.51p4 at G=21.3-22.2, and 24.37p4 at G=21.9-22.1. This detection was confirmed by PS1 (Jan. 23.59-63p3), Schwarzschild Obs. (Jan. 24.11-12p4 at V=21.0-22.6), and CSS-Kuiper (Jan. 25.42-43p4 at G=22.0-22.4).

<< DOU on 25 January '20 >> MPEC 2020-B148 - "12:12 UT" - Daily Orbit Update

Observations of risk-listed objects
K20B05W 2020 BW5 (small asteroid, arc=3 days, H=26.2 ~19m, close passer, NHATS target) from Spacewatch 0.9m (Jan. 25.30-31p3) and MLS (Jan. 25.36-37p4)
K20B05B 2020 BB5 (small asteroid, arc=2 days, H=29.6 ~4m, close passer, NHATS target) from the Spacewatch 1.8m telescope (Jan. 25.27-28p3) and CSS-Kuiper (Jan. 25.39p4)
K20B04Y 2020 BY4 (small asteroid, arc=5 days, H=26.0 ~21m, close passer) from Steward Mt. Lemmon Sta. (Jan. 25.41p4)
K20B04J 2020 BJ4 (almost small, Q=4.742 AU, arc=6 days, H=21.8 ~148m) from Spacewatch 1.8m (Jan. 25.38-40p3)
K20B03K 2020 BK3 (small asteroid, arc=3 days, H=27.0 ~13m, close passer) from UH/Tholen NEO Follow-Up 2.24m Telescope (Jan. 24.50p2), Spacewatch 1.8m (Jan. 24.55p3 & 25.41-42p3), KLENOT (Jan. 24.88-89p6), and Steward Mt. Lemmon Sta. (Jan. 25.29-31p4)
K20B03H 2020 BH3 (small asteroid, arc=3 days, H=26.0 ~21m, close passer, NHATS target) from Tholen 2.24m (Jan. 24.20p2)
K20B01Y 2020 BY1 (small asteroid, arc=5 days, H=26.2 ~19m, close passer) from Tholen 2.24m (Jan. 24.48p2) and Spacewatch 1.8m (Jan. 25.24-25p3)
K20B01F 2020 BF1 (small asteroid, arc=5 days, H=26.2 ~19m, close passer, NHATS target) from Tholen 2.24m (Jan. 24.59-60p2)
K20B00H 2020 BH (small asteroid, arc=7 days, H=28.1 ~8m, close passer, NHATS target) from Tholen 2.24m (Jan. 24.52p2), Spacewatch 0.9m (Jan. 25.28-29p3), and MLS (Jan. 25.40-42p4)
K20B00B 2020 BB (small asteroid, arc=6 days, H=28.6 ~6m, close passer, NHATS target) from Northolt Branch Obs. (Jan. 20.92-93p2) and Tholen 2.24m (Jan. 24.53p2)
K20A01Y 2020 AY1 (small asteroid, arc=19 days, H=25.2 ~31m, close passer, NHATS target) from Spacewatch 1.8m (Jan. 24.33p3) and Tholen 2.24m (Jan. 24.43p2)
K19Y02W 2019 YW2 (small asteroid, arc=31 days, H=24.0 ~54m, close passer) from Tholen 2.24m (Jan. 24.44-45p8 at G=22.32-92)
Observations of recently (no longer) risk-listed objects
K20B03U 2020 BU3 (small asteroid, Q=4.672 AU, arc=5 days, H=23.3 ~74m) from Tholen 2.24m (Jan. 24.50p2)
Observations of close-passing objects
K20B06F 2020 BF6 (arc=2 days, H=25.4 ~28m) from Savelli Obs. (Jan. 24.90-91p3)
K20B05D 2020 BD5 (arc=1 day, H=26.9 ~14m) from PS2 (Jan. 24.41-45p3)
K20B03N 2020 BN3 (q=0.382 AU, Q=4.619 AU, arc=4 days, H=25.2 ~31m) from KLENOT (Jan. 24.86p6) and Steward Mt. Lemmon Sta. (Jan. 25.45p3)
K20B01S 2020 BS1 (arc=5 days, H=26.3 ~19m, NHATS target) from KLENOT (Jan. 24.89p5) and Steward Mt. Lemmon Sta. (Jan. 25.44p4)
K20B00Y 2020 BY (arc=5 days, H=24.5 ~43m) from Northolt Branch Obs. (Jan. 21.03-04p4)
K20B00S 2020 BS (arc=9 days, H=27.9 ~9m, NHATS target) from Spacewatch 0.9m (Jan. 25.40-41p3)
K20B00D 2020 BD (arc=6 days, H=26.2 ~19m) from PS2 (Jan. 24.41-44p3)
K20A03K 2020 AK3 (arc=11 days, H=26.1 ~20m, NHATS target) from KLENOT (Jan. 24.81p7)
K19Y03D 2019 YD3 (arc=31 days, H=25.9 ~22m, NHATS target) from PS2 (Jan. 24.57-59p3)
K19Y01A 2019 YA1 (arc=36 days, H=25.4 ~28m, NHATS target) from PS1 (Jan. 24.44-48p4 at w=21.65-22.59)
K18B01U 2018 BU1 (arc=2 opp, H=24.6 ~41m) from MLS (Jan. 24.18-20p3), Steward Mt. Lemmon Sta. (Jan. 24.29-30p4), and MRO (Jan. 24.32-34p4)
Observation campaigns (NHATS targets, radar support)
K20B05R 2020 BR5 (arc=2 days, H=25.5 ~27m, NHATS) from Steward Mt. Lemmon Sta. (Jan. 25.34p3)
K20B05A 2020 BA5 (arc=4 days, H=24.0 ~54m, NHATS) from Spacewatch 0.9m (Jan. 25.35-37p3)
K20B03S 2020 BS3 (arc=5 days, H=26.3 ~19m, NHATS) from PS1 (Jan. 24.47-48p2 at w=22.16-20)
K20B01P 2020 BP1 (arc=5 days, H=27.2 ~12m, NHATS) from Spacewatch 1.8m (Jan. 24.55-56p3)
K20B01G 2020 BG1 (arc=7 days, H=22.0 ~135m, NHATS) from PS2 (Jan. 24.46-50p4)
K20A03O 2020 AO3 (arc=11 days, H=24.6 ~41m, NHATS) from KLENOT (Jan. 24.85p7)
K20A02W 2020 AW2 (arc=20 days, H=23.2 ~78m, NHATS) from Steward Mt. Lemmon Sta. (Jan. 25.42-44p3)
K19Y03W 2019 YW3 (arc=31 days, H=22.8 ~93m, NHATS) from PS1 (Jan. 24.50-54p4)
K17A05E 2017 AE5 (arc=5 opp, H=22.3 ~117m, NHATS) from ATLAS Haleakala (Jan. 24.49-51p4) and QOS Obs. (Jan. 24.84-85p4)
K08P02G 2008 PG2 (arc=3 opp, H=22.8 ~93m, NHATS) from PS1 (Jan. 24.38-42p4)
-- NHATS target table
Observations of small (H>22.0) & smallish (21.7<H<=22.0) asteroids
K20B06Y 2020 BY6 (arc=2 days, H=24.0 ~54m) from Steward Mt. Lemmon Sta. (Jan. 25.35p3)
K20B06P 2020 BP6 (arc=27 days, H=22.8 ~93m) from PS1 (Dec. 28.45-48p7 at G=21.0-24.3 & Jan. 1.57-61p7 at G=22.0-23.3)
K20B06L 2020 BL6 (arc=2 days, H=25.0 ~34m) from Visnjan Obs. (Jan. 24.89-90p4)
K20B06G 2020 BG6 (arc=2 days, H=24.7 ~39m) from Savelli Obs. (Jan. 24.89p2)
K20B05E 2020 BE5 (arc=3 days, H=26.2 ~19m) from Steward Mt. Lemmon Sta. (Jan. 25.44p3)
K20B05C 2020 BC5 (arc=3 days, H=25.3 ~29m) from PS1 (Jan. 24.44-47p3 at w=21.60-22.29)
K20B04P 2020 BP4 (arc=3 days, H=23.4 ~71m) from KLENOT (Jan. 24.89p5) and Steward Mt. Lemmon Sta. (Jan. 25.44p3)
K20B04K 2020 BK4 (arc=3 days, H=22.5 ~107m) from PS1 (Jan. 24.45-48p3 at w=22.05-24)
K20B03B 2020 BB3 (arc=5 days, H=22.4 ~112m) from the Catalina Sky Survey (CSS) (Jan. 24.27-29p3), ATLAS Mauna Loa (Jan. 24.37-39p4), and KLENOT (Jan. 24.83p7)
K20B02Q 2020 BQ2 (Q=4.592 AU, arc=32 days, H=25.2 ~31m) from MLS (Jan. 24.31-32p4) and KLENOT (Jan. 24.90p5)
K20B02O 2020 BO2 (arc=4 days, H=26.4 ~18m) from Steward Mt. Lemmon Sta. (Jan. 25.34p4)
K20B01U 2020 BU1 (Q=4.841 AU, arc=6 days, H=23.0 ~85m) from Steward Mt. Lemmon Sta. (Jan. 24.51-52p6)
K20B01T 2020 BT1 (arc=5 days, H=25.9 ~22m) from PS2 (Jan. 24.41-45p4)
K20B01O 2020 BO1 (arc=5 days, H=22.1 ~129m) from ATLAS Haleakala (Jan. 24.47-49p3) and QOS Obs. (Jan. 24.79-80p4)
K20B01H 2020 BH1 (arc=6 days, H=24.6 ~41m) from KLENOT (Jan. 24.84p8)
K20B00Z 2020 BZ (arc=5 days, H=27.1 ~13m) from Spacewatch 1.8m (Jan. 24.38p2)
K20A02Y 2020 AY2 (Q=4.874 AU, arc=19 days, H=22.5 ~107m) from Steward Mt. Lemmon Sta. (Jan. 24.49-50p4)
K20A02S 2020 AS2 (arc=124 days, H=22.8 ~93m) from MLS (Jan. 24.35-37p4)
K19Y06M 2019 YM6 (arc=25 days, H=22.2 ~123m) from Spacewatch 0.9m (Jan. 25.25-26p3)
K19Y04E 2019 YE4 (arc=27 days, H=22.5 ~107m) from MLS (Jan. 24.38-39p4)
K19X01N 2019 XN1 (arc=4 opp, H=22.1 ~129m) from PS2 (Jan. 24.41-44p7)
K19S00U 2019 SU (arc=126 days, H=22.8 ~93m) from Astronomical Research Obs. Westfield (Jan. 22.24-25p3 at V=22.1-2)
K19Q00V 2019 QV (arc=154 days, H=22.5 ~107m) from ARO Westfield (Jan. 22.21-22p3 at V=22.2-5)
K15DK0D 2015 DD200 (arc=2 opp, H=22.8 ~93m) from PS2 (Jan. 24.41-44p4)
K15Bo9K 2015 BK509 (arc=2 opp, H=22.3 ~117m) from MLS (Jan. 24.35-37p4)
K15A44J 2015 AJ44 (arc=3 opp, H=22.3 ~117m) from MLS (Jan. 24.26-28p3)
K13D00U 2013 DU (arc=2 opp, H=24.0 ~54m) from CSS (Jan. 24.40-41p4) and ATLAS Mauna Loa (Jan. 24.51-53p4)
K04B58T 2004 BT58 (arc=3 opp, H=22.2 ~123m) from MLS (Jan. 24.27-28p4)
K20B02N 2020 BN2 (arc=6 days, H=21.8 ~148m) from Steward Mt. Lemmon Sta. (Jan. 25.36-37p4)
K20B00E 2020 BE (i=47.7°, arc=7 days, H=21.9 ~141m) from Landehen Obs. (Jan. 21.88-90p4), MLS (Jan. 23.20-22p4), Castelmartini Obs. (Jan. 23.88-89p3), ZTF (Jan. 24.21p4), and KLENOT (Jan. 24.80p3)
K19Y02D 2019 YD2 (arc=2 opp, H=21.8 ~148m) from MLS (Jan. 24.38-39p4)
Observations of other objects
K20B04A 2020 BA4 (arc=4 days, H=20.2 ~309m) from Steward Mt. Lemmon Sta. (Jan. 25.37-39p3)
K20B03Q 2020 BQ3 (Q=5.397 AU, arc=5 days, H=18.7 ~616m) from Steward Mt. Lemmon Sta. (Jan. 24.52-53p4)
K20B02E 2020 BE2 (arc=5 days, H=20.1 ~323m) from ATLAS Mauna Loa (Jan. 24.52-54p4)
K20B01R 2020 BR1 from CSS-Kuiper (Jan. 25.38-39p4)
K20B00V 2020 BV from KLENOT (Jan. 24.82p6)
K20B00R 2020 BR from Northolt Branch Obs. (Jan. 20.94-95p2)
K20A03D 2020 AD3 (arc=17 days, H=21.6 ~162m) from ATLAS Mauna Loa (Jan. 24.45-48p4) and KLENOT (Jan. 24.86p7)
K20A03B 2020 AB3 (Q=4.026 AU, arc=18 days, H=20.7 ~245m) from PS2 (Jan. 24.57-60p4)
K20A02Z 2020 AZ2 (arc=18 days, H=21.2 ~195m) from Steward Mt. Lemmon Sta. (Jan. 24.52-53p4)
K19Y05X 2019 YX5 (Q=4.246 AU, arc=31 days, H=21.2 ~195m) from MLS (Jan. 24.42-44p4)
K19Y05R 2019 YR5 (q=0.336 AU, Q=4.923 AU, arc=31 days, H=19.9 ~355m) from MLS (Jan. 24.29-30p8 at G=21.0-22.1)
K19X01G 2019 XG1 (Q=4.163 AU, arc=2 opp, H=19.1 ~513m) from ZTF (Jan. 24.21p2 & 24.28-29p2) and ATLAS Haleakala (Jan. 24.42-44p4)
K19W06B 2019 WB6 (arc=60 days, H=20.5 ~269m) from ARO Westfield (Jan. 22.29p3) and CSS (Jan. 24.31-33p4)
K19W04W 2019 WW4 (arc=58 days, H=19.6 ~407m) from MLS (Jan. 24.11-12p4 at G=21.4-22.2)
K19W03F 2019 WF3 (arc=60 days, H=20.8 ~234m) from MLS (Jan. 24.10-12p4)
K19T33V 2019 TV33 (arc=2 opp, H=21.5 ~170m) from MLS (Jan. 25.30-31p4)
K19S06H 2019 SH6 (arc=2 opp, H=20.0 ~339m) from MLS (Jan. 24.44-46p4)
K19S02Z 2019 SZ2 (arc=5 opp, H=19.8 ~371m) from ARO Westfield (Jan. 22.05p3 at V=22.0-22.4)
K19S01H 2019 SH1 (arc=3 opp, H=18.2 ~776m) from MLS (Jan. 24.08-10p4) and PS2 (Jan. 25.23-27p4)
K19B01O 2019 BO1 (arc=2 opp, H=19.6 ~407m) from ZTF (Jan. 23.32-33p2 & 23.41p2)
K18C13W 2018 CW13 (arc=2 opp, H=20.0 ~339m) from MLS (Jan. 25.42-45p4)
K18B00P 2018 BP (arc=3 opp, H=20.7 ~245m) from ATLAS Mauna Loa (Jan. 24.45-47p4)
K17M04X 2017 MX4 (arc=4 opp, H=20.8 ~234m) from MLS (Jan. 24.38-39p4)
K17D35S 2017 DS35 (arc=3 opp, H=20.7 ~245m) from PS1 (Jan. 24.33-36p3 at w=22.3-4)
K17B03F 2017 BF3 (arc=3 opp, H=20.8 ~234m) from PS1 (Jan. 24.44-48p4 at w=22.0-22.3)
K16U80T 2016 UT80 (arc=3 opp, H=19.0 ~537m) from MLS (Jan. 24.17-19p4)
K16GL5Z 2016 GZ215 (arc=3 opp, H=20.8 ~234m) from MLS (Jan. 24.38-39p4)
K16AE7X 2016 AX147 (arc=4 opp, H=17.7 ~977m) from SATINO-1 (Jan. 6.95-98p2)
K16AD0R 2016 AR130 (i=55.9°, arc=4 opp, H=20.4 ~282m) from ARO Westfield (Jan. 22.07p3 at V=21.8-22.1)
K15XZ1K 2015 XK351 (arc=4 opp, H=20.3 ~295m) from CSS (Jan. 24.20-21p4) and ATLAS Mauna Loa (Jan. 24.33-35p4)
K15O78X 2015 OX78 (i=40.4°, arc=3 opp, H=20.0 ~339m) from Oberfrauendorf Obs. (Jan. 24.84p4) and QOS Obs. (Jan. 24.86-87p4)
K15M66N 2015 MN66 (arc=4 opp, H=20.1 ~323m) from MLS (Jan. 24.51-52p4)
K15H10B 2015 HB10 (arc=4 opp, H=18.3 ~741m) from PS1 (Jan. 24.63-65p4)
K15DK0E 2015 DE200 (arc=4 opp, H=20.1 ~323m) from Northolt Branch Obs. (Jan. 20.89-90p3), W.F. Cashwell via Slooh.com Canary Islands Obs. (Jan. 24.21-24p3), ATLAS Haleakala (Jan. 24.64-66p3), and QOS Obs. (Jan. 24.81-82p4)
K15A44X 2015 AX44 (arc=4 opp, H=20.0 ~339m) from ARO Westfield (Jan. 22.08-09p3 at V=22.1-5)
K14Y43V 2014 YV43 (Q=5.170 AU, arc=3 opp, H=18.1 ~812m) from PS1 (Jan. 24.45-47p3)
K14Y43U 2014 YU43 (arc=3 opp, H=19.6 ~407m) from Moose Springs Obs. (Jan. 24.32-35p3)
K14Y34W 2014 YW34 (arc=3 opp, H=21.7 ~155m) from Moose Springs Obs. (Jan. 24.28-30p3)
K14N64F 2014 NF64 (Q=4.904 AU, arc=5 opp, H=18.2 ~776m) from Castelmartini Obs. (Jan. 23.91p3) and MLS (Jan. 24.22-24p4)
K14A17D 2014 AD17 (arc=3 opp, H=20.2 ~309m) from MLS (Jan. 24.20-21p4)
K13U10V 2013 UV10 (arc=3 opp, H=19.7 ~389m) from CSS (Jan. 24.20-22p3)
K13CC9M 2013 CM129 (arc=2 opp, H=19.4 ~446m) from PS1 (Jan. 24.22-24p4)
K13A52W 2013 AW52 (arc=5 opp, H=20.1 ~323m) from ATLAS Haleakala (Jan. 24.52p5)
K12BC4E 2012 BE124 (q=0.229 AU, Q=4.847 AU, arc=3 opp, H=19.6 ~407m) from ATLAS Haleakala (Jan. 24.44-48p8)
K12BC4D 2012 BD124 (arc=4 opp, H=19.1 ~513m) from PS1 (Jan. 24.38-41p3)
K11V05R 2011 VR5 (arc=3 opp, H=18.0 ~851m) from MLS (Jan. 24.10-12p4)
K11C04T 2011 CT4 (arc=3 opp, H=20.5 ~269m) from Oberfrauendorf Obs. (Jan. 24.83p4) and QOS Obs. (Jan. 24.92-95p57)
K10S13D 2010 SD13 (Q=4.304 AU, arc=3 opp, H=18.8 ~589m) from MLS (Jan. 24.38-40p4)
K09F04U 2009 FU4 (arc=4 opp, H=17.8 ~933m) from MLS (Jan. 24.40-41p4)
K09C01S 2009 CS1 (arc=3 opp, H=21.2 ~195m) from PS2 (Jan. 24.62-65p4)
K08X02W 2008 XW2 from PS1 (Jan. 25.25-29p4 at w=21.31-22.03)
K08R26S 2008 RS26 (Q=4.794 AU, arc=3 opp, H=17.8 ~933m) from MLS (Jan. 24.42-44p4 at G=21.6-22.5)
K08O01X 2008 OX1 (arc=4 opp, H=21.5 ~170m) from CSS (Jan. 24.33-35p4), PS1 (Jan. 24.44-48p4), and ATLAS Mauna Loa (Jan. 24.49-51p4)
K07W04X 2007 WX4 (arc=3 opp, H=20.0 ~339m) from PS1 (Jan. 25.31-34p3 at w=22.2-5)
K07B29J 2007 BJ29 (q=0.381 AU, arc=3 opp, H=18.8 ~589m) from ATLAS Mauna Loa (Jan. 24.49-51p4)
K06T01D 2006 TD1 (arc=3 opp, H=21.0 ~214m) from MLS (Jan. 24.15-17p4 at G=21.4-22.2)
K06K86Y 2006 KY86 (arc=4 opp, H=19.8 ~371m) from ZTF (Jan. 24.14-19p4), CSS (Jan. 24.20-21p4), and ATLAS Mauna Loa (Jan. 24.33-35p4)
K04X29K 2004 XK29 (arc=3 opp, H=19.9 ~355m) from PS2 (Jan. 24.42-44p2)
K04X14P 2004 XP14 (arc=4 opp, H=19.4 ~446m) from PS2 (Jan. 25.23-26p3)
K04M00D 2004 MD (arc=5 opp, H=20.1 ~323m) from ZTF (Jan. 23.32-33p2 & 23.41-42p2)
K04C52H 2004 CH52 (arc=4 opp, H=19.7 ~389m) from ZTF (Jan. 23.36-38p2, 23.44p1 & 23.50p1)
K03V01E 2003 VE1 (arc=3 opp, H=19.3 ~467m) from PS1 (Jan. 24.23-24p4 at w=21.9-22.1)
J96A02E 1996 AE2 (i=37.4°, arc=4 opp, H=20.3 ~295m) from ATLAS Haleakala (Jan. 24.47-49p4)
r1060 531060 2012 DJ61 from MLS (Jan. 24.51-52p4 at G=21.0-22.2)
q9668 529668 2010 JL33 from MLS (Jan. 24.33-35p4)
p6986 516986 2012 QP10 from ZTF (Jan. 24.21-26p4)
p2245 512245 2016 AU8 from CSS (Jan. 24.35-37p4), PS1 (Jan. 24.45-48p3), and ATLAS Mauna Loa (Jan. 24.57-60p4)
p2244 512244 2015 YE18 from CSS (Jan. 24.13-14p5) and ATLAS Mauna Loa (Jan. 24.26-28p3)
p1684 511684 2015 BN509 from MLS (Jan. 24.29-30p4) and ZTF (Jan. 25.31-33p4)
p1243 511243 2014 BS32 from ZTF (Jan. 24.24-29p4)
o6459 506459 2002 AL14 from ATLAS Mauna Loa (Jan. 24.59-61p4)
o0094 500094 2012 BC20 from CSS (Jan. 24.37-39p4)
n2143 492143 2013 OE from ATLAS Mauna Loa (Jan. 24.29-31p4)
m8490 488490 2000 AF205 from PS1 (Jan. 24.44-47p2) and ATLAS Mauna Loa (Jan. 24.48-50p4)
m3878 483878 2005 YS165 from ATLAS Haleakala (Jan. 24.52-54p4)
m2244 482244 2011 HR from MLS (Jan. 24.46-48p4)
l7492 477492 2010 CG19 from MLS (Jan. 24.51-52p4 at G=21.5-22.1)
k3282 463282 2012 HR15 from WISE (Jan. 21.50p1, 21.63p1, 21.76p1, 21.82p1, 21.89p1, 21.96p1, 22.02p1, 22.09p1 & 22.15p1)
k3216 463216 2012 DU30 from ARO Westfield (Jan. 22.11-12p3 at V=22.1-4)
k2550 462550 2009 CB3 from MLS (Jan. 24.54-55p4)
j8732 458732 2011 MD5 from CSS (Jan. 24.22-24p4) and ATLAS Mauna Loa (Jan. 24.34-36p4)
i3923 443923 2002 RU25 from PS2 (Jan. 24.46-49p3)
h8452 438452 2007 AS12 from ZTF (Jan. 23.22-23p3 & 23.30-33p4)
h7316 437316 2013 OS3 from ATLAS Mauna Loa (Jan. 24.38-39p4) and PS1 (Jan. 25.31-34p4)
g8223 428223 2006 WW from CSS (Jan. 24.16-17p2)
g0187 420187 2011 GA55 from MLS (Jan. 24.29-30p4 at G=21.9-22.6)
f6591 416591 2004 LC2 from ATLAS Haleakala (Jan. 24.55-58p3)
f6231 416231 2003 AJ73 from ATLAS Haleakala (Jan. 24.33-35p4)
f5713 415713 1998 XX2 from PS1 (Jan. 25.22-24p4)
f3421 413421 2004 VA15 from PS1 (Jan. 24.38-42p4)
d1275 391275 2006 SJ134 from ATLAS Mauna Loa (Jan. 24.30-33p4)
c6298 386298 2008 SR7 from PS2 (Jan. 24.41-45p4)
c6281 386281 2008 RJ1 from ARO Westfield (Jan. 22.14-15p3 at V=22.0-22.3)
c5497 385497 2004 DD from MLS (Jan. 24.38-39p4)
c2406 382406 1996 AJ1 from MLS (Jan. 24.27-28p4)
b8610 378610 2008 FT6 from CSS (Jan. 24.11-12p3)
b0307 370307 2002 RH52 from PS1 (Jan. 24.62-63p3)
Z4101 354101 2001 YF1 from MLS (Jan. 24.15-17p3)
X9714 339714 2005 ST1 from MLS (Jan. 24.53-54p4)
X8347 338347 2002 XG4 from ATLAS Mauna Loa (Jan. 24.33-35p4)
X1792 331792 2003 MT2 from MLS (Jan. 24.29-31p4)
V3809 313809 2004 BH41 from MLS (Jan. 24.46-48p4)
V1044 311044 2004 BB103 from CSS (Jan. 24.22-24p4), ATLAS Mauna Loa (Jan. 24.35-37p4), and PS2 (Jan. 25.35-37p3)
V0442 310442 2000 CH59 from CSS (Jan. 24.25-26p4), ATLAS Mauna Loa (Jan. 24.35-36p3), and PS2 (Jan. 25.34-37p4)
U7070 307070 2002 AV31 from MLS (Jan. 24.31-33p4)
U6462 306462 1999 RC32 from MLS (Jan. 24.49-50p4)
S1365 281365 2008 CM116 from ATLAS Haleakala (Jan. 24.21-23p4)
R6397 276397 2002 XA40 from MLS (Jan. 24.24-26p4)
R5975 275975 2001 XF1 from MLS (Jan. 24.18-19p4 at G=21.6-22.4)
Q7940 267940 2004 EM20 from PS1 (Jan. 24.38-41p3 at w=21.8-22.1)
P8325 258325 2001 VB2 from MLS (Jan. 24.13-15p4)
O9595 249595 1997 GH28 from PS1 (Jan. 24.63p2)
O8926 248926 2006 WZ2 from ATLAS Haleakala (Jan. 24.64-67p4)
N7805 237805 2002 CF26 from ATLAS Haleakala (Jan. 24.30-31p3 & 24.36-37p2)
M8368 228368 2000 WK10 from MLS (Jan. 24.44-45p4)
L8863 218863 2006 WO127 from CSS (Jan. 24.54-55p4)
K3015 203015 1999 YF3 from CSS (Jan. 24.33-35p4) and ATLAS Mauna Loa (Jan. 24.48-50p4)
H7651 177651 2004 XM14 from MLS (Jan. 24.17-19p4)
H4806 174806 2003 XL from PS2 (Jan. 25.29-32p4)
H1486 171486 1996 MO from MLS (Jan. 24.54-55p4)
G4400 164400 2005 GN59 from PS1 (Jan. 24.62-63p4)
G3760 163760 2003 OR14 from CSS (Jan. 24.11-12p4)
G3696 163696 2003 EB50 from ATLAS Haleakala (Jan. 24.30-32p4)
G3373 163373 2002 PZ39 from MPC code G19 (Jan. 21.87-89p3, 23.88-89p3 & 24.89-96p6), MLS (Jan. 24.31-32p4), and AHS Obs. (Jan. 25.19-22p6 & 25.28-29p2)
G2080 162080 1998 DG16 from ATLAS Haleakala (Jan. 24.53-55p4)
G2038 162038 1996 DH from CSS (Jan. 24.35-37p4) and ATLAS Mauna Loa (Jan. 24.57-60p4)
F9504 159504 2000 WO67 from MLS (Jan. 24.24-26p3)
F4278 154278 2002 TB9 from CSS (Jan. 24.10-12p4)
F4029 154029 2002 CY46 from MLS (Jan. 24.40-41p4)
F3842 153842 2001 XT30 from CSS (Jan. 24.18-19p4)
F3267 153267 2001 CB32 from ATLAS Mauna Loa (Jan. 24.21-24p4)
F2889 152889 2000 CF59 from MLS (Jan. 24.42-43p4)
E1525 141525 2002 FV5 from MLS (Jan. 24.51-52p4)
D8971 138971 2001 CB21 from MLS (Jan. 24.54-55p4)
D8846 138846 2000 VJ61 from MLS (Jan. 24.13-15p4)
D8127 138127 2000 EE14 from CSS (Jan. 24.52-54p4), ATLAS Mauna Loa (Jan. 24.63-65p4), and PS1 (Jan. 24.64-65p4)
D8013 138013 2000 CN101 from Geyserland Obs. (Jan. 24.54-56p2)
D7925 137925 2000 BJ19 from CSS (Jan. 24.22-24p4)
D7924 137924 2000 BD19 from MLS (Jan. 24.47p1)
D7199 137199 1999 KX4 from ATLAS Haleakala (Jan. 24.35-37p4 & 24.52p5) and ATLAS Mauna Loa (Jan. 24.52p5)
D7170 137170 1999 HF1 from CSS (Jan. 24.54-55p4)
D7120 137120 1999 BJ8 from CSS (Jan. 24.48-50p4) and ATLAS Mauna Loa (Jan. 24.62-64p4)
D7099 137099 1998 YW3 from ATLAS Haleakala (Jan. 24.51-53p7)
D7084 137084 1998 XS16 from MLS (Jan. 24.08-10p4)
D6993 136993 1998 ST49 from ATLAS Haleakala (Jan. 24.54-58p8)
D6795 136795 1997 BQ from ATLAS Haleakala (Jan. 24.31-33p4)
D6618 136618 1994 CN2 from PS2 (Jan. 24.62-65p4)
D6582 136582 1992 BA from CSS (Jan. 24.33-35p4) and PS1 (Jan. 24.44-47p3)
A6589 106589 2000 WN107 from CSS (Jan. 24.15-17p4) and ATLAS Mauna Loa (Jan. 24.30-32p4)
A6538 106538 2000 WK63 from WISE (Jan. 21.01p1, 21.14p1, 21.27p2, 21.34p1, 21.40p1, 21.47p1, 21.60p1 & 21.73p1), CSS (Jan. 24.18-19p4), and ATLAS Mauna Loa (Jan. 24.33-35p4)
A3067 103067 1999 XA143 from ATLAS Haleakala (Jan. 24.39-41p4)
A2873 102873 1999 WK11 from MLS (Jan. 24.35-37p4 at G=21.9-22.5)
99248 99248 2001 KY66 from MLS (Jan. 24.20-22p4)
96315 96315 1997 AP10 from CSS (Jan. 24.46-47p3)
90075 90075 2002 VU94 from CSS (Jan. 24.31-33p3) and ATLAS Mauna Loa (Jan. 24.48-50p4)
89830 89830 2002 CE from ZTF (Jan. 23.47p1, 23.53p1 & 24.45p2) and ATLAS Haleakala (Jan. 24.65-67p3)
87684 87684 2000 SY2 from ATLAS Mauna Loa (Jan. 24.22-24p4)
86326 86326 1999 WK13 from PS2 (Jan. 25.28-32p4)
68278 68278 2001 FC7 from PS2 (Jan. 24.63-66p3)
66959 66959 1999 XO35 from CSS (Jan. 24.11-12p3)
66146 66146 1998 TU3 from ATLAS Mauna Loa (Jan. 24.21-23p3)
65690 65690 1991 DG from ATLAS Mauna Loa (Jan. 24.52-54p4)
54686 54686 2001 DU8 from CSS (Jan. 24.43-45p4) and ATLAS Mauna Loa (Jan. 24.51-54p4)
53110 53110 1999 AR7 from CSS (Jan. 24.15-17p4)
52768 52768 1998 OR2 from Northolt Branch Obs. (Jan. 20.96-00p5) and ATLAS Haleakala (Jan. 24.39-43p8)
38071 38071 1999 GU3 from PS1 (Jan. 25.31-33p3)
36284 36284 2000 DM8 from MLS (Jan. 24.35-37p4)
36236 36236 1999 VV from ATLAS Mauna Loa (Jan. 24.30-32p4)
35107 35107 1991 VH from ARO Westfield (Jan. 22.37p3), CSS (Jan. 24.37-39p4), and ATLAS Mauna Loa (Jan. 24.57-59p4)
34613 34613 2000 UR13 from ZTF (Jan. 23.23p1, 23.31p1, 24.23p1 & 24.30p1) and MLS (Jan. 24.29-30p4)
25916 25916 2001 CP44 from MLS (Jan. 24.22-24p4)
23714 23714 1998 EC3 from PS1 (Jan. 24.64-65p4)
20255 20255 1998 FX2 from ATLAS Mauna Loa (Jan. 24.40-42p4)
19764 19764 2000 NF5 from PS1 (Jan. 24.62-63p3)
18882 18882 1999 YN4 from WISE (Jan. 20.53p1, 20.79p1, 20.92p1, 21.05p1, 21.19p1, 21.32p1, 21.58p1, 21.71p1, 21.84p1 & 21.97p1)
18172 18172 2000 QL7 from ATLAS Haleakala (Jan. 24.39-41p3)
17274 17274 2000 LC16 from MLS (Jan. 24.29-30p4 at G=21.0-22.2)
11405 11405 1999 CV3 from CSS (Jan. 24.24-25p3), ATLAS Mauna Loa (Jan. 24.38-40p4), and Geyserland Obs. (Jan. 24.49-51p2)
11066 11066 Sigurd (1992 CC1) from CSS (Jan. 24.46-47p4) and ATLAS Mauna Loa (Jan. 24.60-62p4)
08566 8566 1996 EN from CSS (Jan. 24.36-37p4), PS1 (Jan. 24.52-54p3), and ATLAS Mauna Loa (Jan. 24.53-55p4)
07092 7092 Cadmus (1992 LC) from CSS (Jan. 24.10-12p4) and ATLAS Mauna Loa (Jan. 24.24-26p4)
06456 6456 Golombek (1992 OM) from ZTF (Jan. 23.25-29p4)
05626 5626 1991 FE from Geyserland Obs. (Jan. 24.58-60p5)
04660 4660 Nereus (1982 DB) from PS1 (Jan. 25.22-24p4)
04487 4487 Pocahontas (1987 UA) from ATLAS Mauna Loa (Jan. 24.40-42p4)
04183 4183 Cuno (1959 LM) from ZTF (Jan. 23.09p1, 23.17p1 & 24.12-16p2), CSS (Jan. 24.08-10p4), and ATLAS Mauna Loa (Jan. 24.24-26p4)
03271 3271 Ul (1982 RB) from PS1 (Jan. 25.30-34p4)
02059 2059 Baboquivari (1963 UA) from CSS (Jan. 24.17-19p4) and ATLAS Mauna Loa (Jan. 24.31-33p4)
01981 1981 Midas (1973 EA) from ATLAS Haleakala (Jan. 24.42-45p4)
01917 1917 Cuyo (1968 AA) from PS1 (Jan. 24.64-65p4)
01866 1866 Sisyphus (1972 XA) from ATLAS Haleakala (Jan. 24.33-35p4) and PS1 (Jan. 25.26-29p4)
01627 1627 Ivar (1929 SH) from ARO Westfield (Jan. 22.34-35p4) and Geyserland Obs. (Jan. 24.60-62p5)
01620 1620 Geographos (1951 RA) from ZTF (Jan. 23.10p1, 23.17p1 & 24.12-15p4)
01221 1221 Amor (1932 EA1) from PS1 (Jan. 24.63-65p4)
00719 719 Albert (1911 MT) from PS1 (Jan. 24.44-48p3)

MPEC 2020-B147 - "03:25 UT" - 2020 BZ6

K20B06Z 2020 BZ6 (H=25.5 ~27m, NHATS) was picked up at 0802 UT on 24 Jan. by PS1, observing it at Jan. 23.38-41p4 at G=21.4-22.1 and 24.33-37p4 at w=21.9-22.2. This detection was confirmed by PS2 (Jan. 22.50-54p4 at G=21.4-22.1).

MPEC 2020-B146 - "03:21 UT" - 2020 BY6

K20B06Y 2020 BY6 (small asteroid, H=24.0 ~54m) was picked up at 1021 UT on 23 Jan. by MLS, observing it at Jan. 23.43-45p4. This detection was confirmed by Steward Mt. Lemmon Sta. (Jan. 23.54-55p4 & 24.32-33p4), Schwarzschild Obs. (Jan. 23.99p3 & 24.22-23p3), KLENOT (Jan. 24.03p5), Visnjan Obs. (Jan. 24.09-10p3), and Savelli Obs. (Jan. 25.04-05p3).

MPEC 2020-B145 - "03:17 UT" - 2020 BX6

K20B06X 2020 BX6 (borderline-small, Q=4.481 AU, H=21.8 ~148m) was picked up at 1359 UT on 20 Jan. by PS1, observing it at 2019 Oct. 25.58-59p2 at G=21.9-22.5, Nov. 3.55-59p4 at G=22.1-23.2, and Jan. 20.58-60p3 at w=20.76-21.09. This detection was confirmed by Robert Holmes via Cerro Tololo Inter-American Obs. (CTIO) (Jan. 21.34p3) and Mt. John Obs. (Jan. 23.63-64p4).

Observers on 25 January '20

A total of 43 observers appeared in this day's MPECs.

Code	Observer / observatory
`U71`	AHS Obs., 1 in MPEC 2020-B148 -- 163373
`251`	Arecibo in Puerto Rico, 4 in radar -- 2019 XQ3, 2019 XO3, 2019 VK3, 2019 UO
`H21`	Astronomical Research Obs. Westfield in Illinois, 10 in MPEC 2020-B148 -- 2019 WB6, 2019 SZ2, 2019 SU, 2019 QV, 2016 AR130, 2015 AX44, 463216, 386281, 35107, 1627
`T05`	ATLAS Haleakala in Hawaii, 25 in MPEC 2020-B148 -- 2020 BO1, 2019 XG1, 2017 AE5, 2015 DE200, 2013 AW52, 2012 BE124, 1996 AE2, 89830, 52768, 483878, 416591, 416231, 281365, 248926, 237805, 18172, 163696, 162080, 137199, 137099, 136993, 136795, 103067, 1981, 1866
`T08`	ATLAS Mauna Loa in Hawaii, 44 in MPECs 2020-B148 & 2020-B174 -- 2020 BE8, 2020 BE2, 2020 BB3, 2020 AD3, 2018 BP, 2015 XK351, 2013 DU, 2008 OX1, 2007 BJ29, 2006 KY86, 90075, 87684, 66146, 65690, 54686, 512245, 512244, 506459, 492143, 488490, 458732, 437316, 391275, 36236, 35107, 338347, 311044, 310442, 203015, 20255, 162038, 153267, 138127, 137199, 137120, 11405, 11066, 106589, 106538, 8566, 7092, 4487, 4183, 2059
`160`	Castelmartini Obs. in Italy, 2 in MPEC 2020-B148 -- 2020 BE, 2014 NF64
`703`	Catalina Sky Survey (CSS) in Arizona, 40 in MPEC 2020-B148 -- 2020 BB3, 2019 WB6, 2015 XK351, 2013 UV10, 2013 DU, 2008 OX1, 2006 KY86, 96315, 90075, 66959, 54686, 53110, 512245, 512244, 500094, 458732, 428223, 378610, 35107, 311044, 310442, 218863, 203015, 163760, 162038, 154278, 153842, 138127, 137925, 137170, 137120, 136582, 11405, 11066, 106589, 106538, 8566, 7092, 4183, 2059
`V06`	Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) in Arizona, 12 in MPECs 2020-B148, 2020-B149, 2020-B156, 2020-B158, 2020-B160, 2020-B165, 2020-B166, 2020-B167, 2020-B170, 2020-B171 & 2020-B173 -- 2020 BY7, 2020 BX7, 2020 BW7, 2020 BR1, 2020 BP7, 2020 BN7, 2020 BL7, 2020 BD8, 2020 BB8, 2020 BB7, 2020 BB5, 2020 BA8
`807\|`	Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2020-B145 -- 2020 BX6
`A77`	Chante-Perdrix Obs. in France, 1 in MPEC 2020-B163 -- 2020 BS7
`K87`	Dettelbach Vineyard Obs. in Germany, 1 in MPEC 2020-B163 -- 2020 BS7
`595`	Farra d'Isonzo Obs. in Italy, 1 in MPEC 2020-B163 -- 2020 BS7
`E89`	Geyserland Obs. in New Zealand, 4 in MPEC 2020-B148 -- 138013, 11405, 5626, 1627
`K88`	GINOP-KHK in Hungary, 3 in MPECs 2020-B163, 2020-B169 & 2020-B172 -- 2020 BZ7, 2020 BS7, 2020 BC8
`J95`	Great Shefford Obs. in England, 1 in MPEC 2020-B163 -- 2020 BS7
`H06\|`	Hidetaka Sato in Japan via iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2020-B163 -- 2020 BS7
`246`	KLENOT in the Czech Republic, 17 in MPECs 2020-B146, 2020-B148, 2020-B161, 2020-B162, 2020-B163 & 2020-B172 -- 2020 BY6, 2020 BV, 2020 BS7, 2020 BS1, 2020 BR7, 2020 BQ7, 2020 BQ2, 2020 BP4, 2020 BN3, 2020 BK3, 2020 BH1, 2020 BE, 2020 BC8, 2020 BB3, 2020 AO3, 2020 AK3, 2020 AD3
`Z43`	Landehen Obs., 1 in MPEC 2020-B148 -- 2020 BE
`H01`	Magdalena Ridge Obs. (MRO) in New Mexico, 12 in MPECs 2020-B148, 2020-B150, 2020-B153, 2020-B154, 2020-B155, 2020-B159, 2020-B160, 2020-B163, 2020-B164, 2020-B167, 2020-B170 & 2020-B173 -- 2020 BY7, 2020 BV7, 2020 BS7, 2020 BP7, 2020 BO7, 2020 BK7, 2020 BJ7, 2020 BH7, 2020 BD8, 2020 BC7, 2020 BA8, 2018 BU1
`711`	McDonald Obs. in Texas, 1 in MPEC 2020-B163 -- 2020 BS7
`V14`	Moose Springs Obs., 2 in MPEC 2020-B148 -- 2014 YW34, 2014 YU43
`G19`	MPC code G19, 1 in MPEC 2020-B148 -- 163373
`474`	Mt. John Obs. in New Zealand, 1 in MPEC 2020-B145 -- 2020 BX6
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 80 in MPECs 2020-B146, 2020-B148, 2020-B149, 2020-B150, 2020-B153, 2020-B154, 2020-B158, 2020-B163, 2020-B164, 2020-B165, 2020-B167, 2020-B169, 2020-B170, 2020-B172 & 2020-B173 -- 2020 BZ7, 2020 BY7, 2020 BY6, 2020 BW7, 2020 BW5, 2020 BV7, 2020 BS7, 2020 BQ2, 2020 BN7, 2020 BJ7, 2020 BH7, 2020 BH, 2020 BE, 2020 BD8, 2020 BC8, 2020 BC7, 2020 BB7, 2020 BA8, 2020 AS2, 2019 YX5, 2019 YR5, 2019 YE4, 2019 YD2, 2019 WW4, 2019 WF3, 2019 TV33, 2019 SH6, 2019 SH1, 2018 CW13, 2018 BU1, 2017 MX4, 2016 UT80, 2016 GZ215, 2015 MN66, 2015 BK509, 2015 AJ44, 2014 NF64, 2014 AD17, 2011 VR5, 2010 SD13, 2009 FU4, 2008 RS26, 2006 TD1, 2004 BT58, 99248, 531060, 529668, 511684, 482244, 477492, 462550, 420187, 385497, 382406, 36284, 354101, 34613, 339714, 331792, 313809, 307070, 306462, 276397, 275975, 25916, 258325, 228368, 177651, 17274, 171486, 163373, 159504, 154029, 152889, 141525, 138971, 138846, 137924, 137084, 102873
`Z80`	Northolt Branch Obs. in England, 5 in MPEC 2020-B148 -- 2020 BY, 2020 BR, 2020 BB, 2015 DE200, 52768
`G34`	Oberfrauendorf Obs. in Germany, 2 in MPEC 2020-B148 -- 2015 OX78, 2011 CT4
`F51`	Pan-STARRS 1 (PS1) in Hawaii, 57 in MPECs 2020-B145, 2020-B147, 2020-B148, 2020-B149, 2020-B150, 2020-B151, 2020-B152, 2020-B154, 2020-B156, 2020-B157, 2020-B159, 2020-B160, 2020-B164, 2020-B165, 2020-B166, 2020-B167, 2020-B168, 2020-B170, 2020-B171 & 2020-B174 -- 2020 BZ6, 2020 BY7, 2020 BX7, 2020 BX6, 2020 BW7, 2020 BV7, 2020 BS3, 2020 BP7, 2020 BP6, 2020 BO7, 2020 BM7, 2020 BL7, 2020 BK4, 2020 BJ7, 2020 BE8, 2020 BD7, 2020 BC7, 2020 BC5, 2020 BB8, 2020 BB7, 2020 BA8, 2019 YW3, 2019 YG7, 2019 YA1, 2017 DS35, 2017 BF3, 2015 HB10, 2014 YV43, 2013 CM129, 2012 BD124, 2009 CE, 2008 XW2, 2008 PG2, 2008 OX1, 2007 WX4, 2003 VE1, 512245, 488490, 437316, 415713, 413421, 38071, 370307, 267940, 249595, 23714, 19764, 164400, 138127, 136582, 8566, 4660, 3271, 1917, 1866, 1221, 719
`F52`	Pan-STARRS 2 (PS2) in Hawaii, 35 in MPECs 2020-B147, 2020-B148, 2020-B150, 2020-B152, 2020-B155, 2020-B159, 2020-B160, 2020-B161, 2020-B162, 2020-B165, 2020-B166, 2020-B168, 2020-B169, 2020-B171, 2020-B172 & 2020-B174 -- 2020 BZ7, 2020 BZ6, 2020 BX7, 2020 BW7, 2020 BT1, 2020 BR7, 2020 BQ7, 2020 BP7, 2020 BO7, 2020 BK7, 2020 BG1, 2020 BE8, 2020 BD5, 2020 BD, 2020 BC8, 2020 BC7, 2020 BB8, 2020 AB3, 2019 YG7, 2019 YD3, 2019 XN1, 2019 SH1, 2015 DD200, 2009 CS1, 2009 CE, 2004 XP14, 2004 XK29, 86326, 68278, 443923, 386298, 311044, 310442, 174806, 136618
`L18`	QOS Obs., 5 in MPEC 2020-B148 -- 2020 BO1, 2017 AE5, 2015 OX78, 2015 DE200, 2011 CT4
`L04`	ROASTERR-1 in Romania, 1 in MPEC 2020-B174 -- 2020 BE8
`104`	San Marcello Pistoiese Obs. in Italy, 3 in MPECs 2020-B161, 2020-B162 & 2020-B163 -- 2020 BS7, 2020 BR7, 2020 BQ7
`C95`	SATINO-1 in France, 2 in MPECs 2020-B148 & 2020-B163 -- 2020 BS7, 2016 AX147
`K96`	Savelli Obs., 3 in MPECs 2020-B146 & 2020-B148 -- 2020 BY6, 2020 BG6, 2020 BF6
`204`	Schiaparelli Obs. in Italy, 2 in MPECs 2020-B162 & 2020-B163 -- 2020 BS7, 2020 BR7
`033`	Schwarzschild Obs. in Germany, 11 in MPECs 2020-B146, 2020-B149, 2020-B151, 2020-B158, 2020-B161, 2020-B162, 2020-B163, 2020-B168, 2020-B172, 2020-B173 & 2020-B174 -- 2020 BY6, 2020 BS7, 2020 BR7, 2020 BQ7, 2020 BN7, 2020 BE8, 2020 BD8, 2020 BD7, 2020 BC8, 2020 BB7, 2009 CE
`G40'`	W.F. Cashwell in Nevada via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2020-B148 -- 2015 DE200
`691`	Spacewatch 0.9m telescope in Arizona, 7 in MPECs 2020-B148, 2020-B157 & 2020-B161 -- 2020 BW5, 2020 BS, 2020 BQ7, 2020 BM7, 2020 BH, 2020 BA5, 2019 YM6
`291`	Spacewatch 1.8m telescope in Arizona, 7 in MPEC 2020-B148 -- 2020 BZ, 2020 BY1, 2020 BP1, 2020 BK3, 2020 BJ4, 2020 BB5, 2020 AY1
`I52`	Steward Obs. Mt. Lemmon Station in Arizona, 28 in MPECs 2020-B146, 2020-B148, 2020-B150, 2020-B151, 2020-B153, 2020-B158, 2020-B161, 2020-B162, 2020-B163, 2020-B164, 2020-B169, 2020-B170 & 2020-B172 -- 2020 BZ7, 2020 BY6, 2020 BY4, 2020 BV7, 2020 BU1, 2020 BS7, 2020 BS1, 2020 BR7, 2020 BR5, 2020 BQ7, 2020 BQ3, 2020 BP4, 2020 BO2, 2020 BN7, 2020 BN3, 2020 BN2, 2020 BK3, 2020 BH7, 2020 BE5, 2020 BD7, 2020 BC8, 2020 BC7, 2020 BA8, 2020 BA4, 2020 AZ2, 2020 AY2, 2020 AW2, 2018 BU1
`T12`	UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 9 in MPEC 2020-B148 -- 2020 BY1, 2020 BU3, 2020 BK3, 2020 BH3, 2020 BH, 2020 BF1, 2020 BB, 2020 AY1, 2019 YW2
`L01`	Visnjan Obs., 9 in MPECs 2020-B146, 2020-B148, 2020-B155, 2020-B157, 2020-B161, 2020-B162, 2020-B163, 2020-B168 & 2020-B172 -- 2020 BY6, 2020 BS7, 2020 BR7, 2020 BQ7, 2020 BM7, 2020 BL6, 2020 BK7, 2020 BC8, 2009 CE
`C51`	WISE in Earth polar orbit, 3 in MPEC 2020-B148 -- 463282, 18882, 106538
`I41`	Zwicky Transient Facility (ZTF) in southern California, 16 in MPECs 2020-B148 & 2020-B152 -- 2020 BE, 2019 YG7, 2019 XG1, 2019 BO1, 2006 KY86, 2004 MD, 2004 CH52, 89830, 516986, 511684, 511243, 438452, 34613, 6456, 4183, 1620

For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring on 25 January '20

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS at 2358 UTC)
See the CRT page for a list of all objects rated recently as risks and our ephemerides page for a list of risk-listed objects under current observation.
The time horizon for JPL and NEODyS listings is 100 years, and both post impact solutions beyond that for some special objects.
For the latest official risk assessments, and for explanations of the terminology, see the NASA/JPL Sentry and NEODyS CLOMON2 risk pages.
0000NNN000 Object	Risk Monitor	When Noted UTC	0000T0000 Year Range	VI #	000NN00 Prob Cum	T0000 PS Cum	T0000 PS Max	T S	Notes for Today's Latest Risk Assessments

2020 BD8	JPL Sentry	2332	2032-2117	8	6.9741e-09	-5.58	-5.90	0	JPL: Computed at 15:28 today Pacific time based on 25 observations spanning 1.9668 days (2020-Jan-23.13137 to 2020-Jan-25.09817). Diameter approximately 0.265 km. from weighted mean H=20.53.

2020 BC8	JPL Sentry	2332	2047-2119	87	5.776629e-07	-3.59	-4.35	0	JPL: Computed at 15:09 today Pacific time based on 34 observations spanning 2.7096 days (2020-Jan-23.15173 to 2020-Jan-25.86134). Diameter approximately 0.377 km. from weighted mean H=19.78.

2020 BH7	NEODyS	2132	2110	1	3.35e-07	-8.14	-8.14	0	NEODyS: "Based on 20 optical observations (of which 1 are rejected as outliers) from 2020-01-24.330 to 2020-01-25.311."
2020 BH7	JPL Sentry	1900	2100-2110	3	4.513451e-07	-8.00	-8.00	0	JPL: Computed at 10:57 today Pacific time based on 20 observations spanning .98087 days (2020-Jan-24.32905 to 2020-Jan-25.30992). Diameter approximately 0.010 km. from weighted mean H=27.72.

2020 BW5	JPL Sentry	1630	2040-2112	21	7.1382443e-06	-5.74	-5.82	0	JPL: Computed at 06:36 today Pacific time based on 20 observations spanning 2.8563 days (2020-Jan-22.516545 to 2020-Jan-25.37281). Diameter approximately 0.017 km. from weighted mean H=26.44.
2020 BW5	NEODyS	1630	2040-2118	30	6.78e-06	-5.79	-5.89	0	NEODyS: "Based on 20 optical observations (of which 0 are rejected as outliers) from 2020-01-22.517 to 2020-01-25.374."

2020 BB5	JPL Sentry	1630	2087-2119	12	0.000167445641	-6.28	-6.43	0	JPL: Computed at 06:53 today Pacific time based on 35 observations spanning 2.0705 days (2020-Jan-23.32313 to 2020-Jan-25.39362). Diameter approximately 0.004 km. from weighted mean H=29.55.
2020 BB5	NEODyS	1630	2087-2116	16	1.87e-04	-6.26	-6.36	0	NEODyS: "Based on 35 optical observations (of which 0 are rejected as outliers) from 2020-01-23.324 to 2020-01-25.394."

2020 BY4	JPL Sentry	1630	2055-2117	18	6.635517e-06	-5.51	-5.94	0	JPL: Computed at 06:29 today Pacific time based on 22 observations spanning 4.9957 days (2020-Jan-20.412927 to 2020-Jan-25.40861). Diameter approximately 0.020 km. from weighted mean H=26.12.
2020 BY4	NEODyS	1630	2055-2118	25	8.11e-06	-5.44	-5.86	0	NEODyS: "Based on 25 optical observations (of which 3 are rejected as outliers) from 2020-01-20.414 to 2020-01-25.409."

2020 BJ4	NEODyS	1630	R E M O V E D						-

2020 BK3	JPL Sentry	1630	2091-2107	11	0.00051924	-4.40	-4.42	0	JPL: Computed at 06:36 today Pacific time based on 64 observations spanning 3.0212 days (2020-Jan-22.395303 to 2020-Jan-25.41652). Diameter approximately 0.014 km. from weighted mean H=26.92.
2020 BK3	NEODyS	1630	2091-2113	21	6.13e-04	-4.35	-4.35	0	NEODyS: "Based on 64 optical observations (of which 0 are rejected as outliers) from 2020-01-22.396 to 2020-01-25.417."

2020 BH3	JPL Sentry	1630	2059-2104	6	1.1340673e-06	-6.79	-7.24	0	JPL: Computed at 06:55 today Pacific time based on 21 observations spanning 2.9296 days (2020-Jan-21.274771 to 2020-Jan-24.2044). Diameter approximately 0.021 km. from weighted mean H=26.08.
2020 BH3	NEODyS	1630	2059-2106	4	7.54e-07	-7.03	-7.13	0	NEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2020-01-21.276 to 2020-01-24.205."

2020 BY1	JPL Sentry	1630	2049-2049	2	1.83012e-06	-5.96	-5.98	0	JPL: Computed at 06:35 today Pacific time based on 54 observations spanning 4.7913 days (2020-Jan-20.460859 to 2020-Jan-25.25212). Diameter approximately 0.019 km. from weighted mean H=26.26.
2020 BY1	NEODyS	1630	2049	2	1.43e-07	-7.08	-7.1	0	NEODyS: "Based on 54 optical observations (of which 0 are rejected as outliers) from 2020-01-20.462 to 2020-01-25.253."

2020 BF1	JPL Sentry	1630	R E M O V E D						JPL: Risk listing removed at 1458 UTC today

2020 BH	JPL Sentry	1630	2107-2107	1	1.598e-06	-7.78	-7.78	0	JPL: Computed at 06:33 today Pacific time based on 42 observations spanning 7.0842 days (2020-Jan-18.33189 to 2020-Jan-25.41609). Diameter approximately 0.008 km. from weighted mean H=28.14.
2020 BH	NEODyS	1630	2107-2114	5	8.43e-07	-8.09	-8.41	0	NEODyS: "Based on 42 optical observations (of which 0 are rejected as outliers) from 2020-01-18.333 to 2020-01-25.417."

2020 BB	JPL Sentry	1630	R E M O V E D						JPL: Risk listing removed at 1434 UTC today
2020 BB	NEODyS	1630	2115-2118	3	2.78e-07	-8.80	-8.87	0	NEODyS: "Based on 84 optical observations (of which 1 are rejected as outliers) from 2020-01-18.290 to 2020-01-24.535."

2020 AY1	JPL Sentry	1630	2103-2103	1	1.586e-07	-7.26	-7.26	0	JPL: Computed at 06:56 today Pacific time based on 107 observations spanning 19.192 days (2020-Jan-05.24158 to 2020-Jan-24.433105). Diameter approximately 0.032 km. from weighted mean H=25.15.
2020 AY1	NEODyS	1630	2103	1	1.82e-07	-7.22	-7.22	0	NEODyS: "Based on 108 optical observations (of which 4 are rejected as outliers) from 2020-01-05.242 to 2020-01-24.434."

2019 YW2	JPL Sentry	1630	R E M O V E D						JPL: Risk listing removed at 1413 UTC today
2019 YW2	NEODyS	1630	2115-2117	2	4.4e-10	-9.20	-9.21	0	NEODyS: "Based on 140 optical observations (of which 8 are rejected as outliers) from 2019-12-24.514 to 2020-01-24.449."

2019 XO3	JPL Sentry	0200	R E M O V E D						JPL: Risk listing removed at 0058 UTC today

Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale (next 100 years)

An impact solution, also known as a "virtual impactor" (VI), is not a prediction but rather a possibility derived from a variant orbit calculation that cannot be eliminated yet based on the existing data. Elimination can come quickly with just a little further observation or may take weeks or months, sometimes years. Once superceded or eliminated, a former impact solution has zero relevance to an object's risk. See Jon Giorgini's "Understanding Risk Pages" to learn more.

Chronology on 25 January '20

Times are UTC for when items were noted or added by The Tracking News.

2332	Noted that JPL Sentry has posted 2020 BC8 as an impact risk - see above Noted that JPL Sentry has posted 2020 BD8 as an impact risk - see above
2310	Generated Traffic Report
2230	Grabbed MPEC 2020-B172 - 2020 BC8 - see above Grabbed MPEC 2020-B173 - 2020 BD8 - see above Grabbed MPEC 2020-B174 - 2020 BE8 - see above
2200	Grabbed MPEC 2020-B169 - 2020 BZ7 - see above Grabbed MPEC 2020-B170 - 2020 BA8 - see above Grabbed MPEC 2020-B171 - 2020 BB8 - see above
2132	Noted that NEODyS has posted 2020 BH7 as an impact risk - see above Grabbed MPEC 2020-B163 - 2020 BS7 - see above Grabbed MPEC 2020-B164 - 2020 BV7 - see above Grabbed MPEC 2020-B165 - 2020 BW7 - see above Grabbed MPEC 2020-B166 - 2020 BX7 - see above Grabbed MPEC 2020-B167 - 2020 BY7 - see above Grabbed MPEC 2020-B168 - 2009 CE - see above
2030	Grabbed MPEC 2020-B162 - 2020 BR7 - see above
1930	Grabbed MPEC 2020-B155 - 2020 BK7 - see above Grabbed MPEC 2020-B156 - 2020 BL7 - see above Grabbed MPEC 2020-B157 - 2020 BM7 - see above Grabbed MPEC 2020-B158 - 2020 BN7 - see above Grabbed MPEC 2020-B159 - 2020 BO7 - see above Grabbed MPEC 2020-B160 - 2020 BP7 - see above Grabbed MPEC 2020-B161 - 2020 BQ7 - see above
1900	Noted that JPL Sentry has posted 2020 BH7 as an impact risk - see above Grabbed MPEC 2020-B154 - 2020 BJ7 - see above
1801	Grabbed MPEC 2020-B153 - 2020 BH7 - see above
1630	Noted that JPL Sentry has removed 2019 YW2 as an impact risk - see above Noted that NEODyS has updated its 2019 YW2 risk assessment - see above Noted that JPL Sentry has updated its 2020 AY1 risk assessment - see above Noted that NEODyS has updated its 2020 AY1 risk assessment - see above Noted that JPL Sentry has removed 2020 BB as an impact risk - see above Noted that NEODyS has updated its 2020 BB risk assessment - see above Noted that JPL Sentry has updated its 2020 BB5 risk assessment - see above Noted that NEODyS has updated its 2020 BB5 risk assessment - see above Noted that JPL Sentry has removed 2020 BF1 as an impact risk - see above Noted that JPL Sentry has updated its 2020 BH risk assessment - see above Noted that NEODyS has updated its 2020 BH risk assessment - see above Noted that JPL Sentry has updated its 2020 BH3 risk assessment - see above Noted that NEODyS has updated its 2020 BH3 risk assessment - see above Noted that NEODyS has removed 2020 BJ4 as an impact risk - see above Noted that JPL Sentry has updated its 2020 BK3 risk assessment - see above Noted that NEODyS has updated its 2020 BK3 risk assessment - see above Noted that JPL Sentry has updated its 2020 BW5 risk assessment - see above Noted that NEODyS has posted 2020 BW5 as an impact risk - see above Noted that JPL Sentry has updated its 2020 BY1 risk assessment - see above Noted that NEODyS has updated its 2020 BY1 risk assessment - see above Noted that JPL Sentry has updated its 2020 BY4 risk assessment - see above Noted that NEODyS has updated its 2020 BY4 risk assessment - see above Grabbed MPEC 2020-B148 - Daily Orbit Update - see above Grabbed MPEC 2020-B149 - 2020 BB7 - see above Grabbed MPEC 2020-B150 - 2020 BC7 - see above Grabbed MPEC 2020-B151 - 2020 BD7 - see above Grabbed MPEC 2020-B152 - 2019 YG7 - see above
0430	Grabbed MPEC 2020-B145 - 2020 BX6 - see above Grabbed MPEC 2020-B146 - 2020 BY6 - see above Grabbed MPEC 2020-B147 - 2020 BZ6 - see above
0225	Noted Radar Astrometry database update - see above
0200	Noted that JPL Sentry has removed 2019 XO3 as an impact risk - see above Noted Radar Astrometry database update - see above

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