2020-01-23 Tracking News

Contents on 23 January '20

Traffic Report -- fourteen objects
Radar Astrometry -- one object
IAU Minor Planet Center
- NEOCP Activity -- 128 listings
- New MPECs -- seventeen MPECs
Observers -- 43 observers
Impact Risk Monitoring -- seven objects
Chronology

Asteroid/Comet Connection (A/CC) Resources:

Consolidated Risk Tables - the CRT page
Of 1080 risk-listed objects, 52 have had news in the last 31 days. Updated at 2000 UTC on 23 Jan.
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 23 January '20

Fourteen objects reported inside ten LD

There are fourteen Solar-System small bodies reported to be within ten lunar distances (LD) of our planet today. Risk-listed 2020 BB is the nearest and exits Earth's SOI as it moves away from 2.25 to 2.72 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
0.8 LD Jan. 20*	2020 BK3	14 m	5.1 to 7.4 LD	Jan. 16 - 25	NEW, EPU +/- 5 mins.*, intruder, risk - MPEC

2.00 LD Jan. 21	2020 BB	6 m	2.25 to 2.72 LD	Jan. 9 - Feb. 2	NHATS target, exits Earth SOI, risk

2.56 LD today	2020 BB1	8 m	2.56 LD	Jan. 19 - 27	Earth closest at 0838 UTC
2.7 LD Jan. 14*	2020 BH	8 m	7.3 to 8.0 LD	Jan. 1 - 26	EPU +/- 5 mins.*, NHATS target, risk
2.99 LD Jan. 14	2020 BS	9 m	8.17 to 9.05 LD	Jan. 4 - 25	NHATS target
3.67 LD Jan. 21	2020 BP	25 m	6.06 to 9.32 LD	Jan. 19 - 24
3.71 LD Jan. 10	2019 YF4	13 m	8.77 to 9.33 LD	Dec. 27 - Jan. 25	NHATS target
3.82 LD Jan. 21	2020 BY	43 m	5.59 to 8.73 LD	Jan. 19 - 24

5.09 LD Jan. 26	2020 BH3	22 m	6.35 from 7.36 LD	Jan. 20 - Feb. 1	NEW, NHATS target, risk - MPEC
6.4 LD Jan. 19*	2020 BK	16 m	7.4 to 7.9 LD	Jan. 11 - 27	EPU +/- 12 mins.*, NHATS target
6.61 LD Jan. 21	2020 BS1	19 m	6.85 to 7.28 LD	Jan. 15 - 27	NHATS target - DOU
7.7 LD tomorrow*	2020 BF1	21 m	7.7 from 7.8 LD	Jan. 18 - 30	EPU +/- 20 mins.*, NHATS target, risk
8.30 LD Jan. 25	2020 AK3	21 m	8.54 from 9.04 LD	Jan. 21 - 28	NHATS target
9.77 LD Jan. 21	2020 BN	9 m	9.87 to 10.16 LD	Jan. 20 - 23	exits ten LD - DOU

Approaching - sorted by 10-LD bubble entry date
Earth passage	I D	~Size	Distance today	Inside ten LD	Notes
6.8 LD Jan. 27*	2020 BN3	29 m	21.9 from 28.2 LD	Jan. 26 - 28	NEW, EPU +/- 9 mins.* - MPEC
3.69 LD Feb. 4	2013 BA74	27 m	18.95 from 20.60 LD	Jan. 29 - Feb. 9
* EPU = Earth passage uncertainty

This report was generated at 2135 UTC with three discoveries announced late yesterday of approaching 2020 BN3 (MPEC) and risk-listed objects inbound 2020 BH3 (MPEC) and outbound intruder 2020 BK3 (MPEC), plus today's announcement of departed 2020 BL4 (MPEC), which sneaked past us at perhaps 5.1 LD on December 27th (uncertainty +/- 2.821 days). One of today's two DOU MPECs has follow-up for outbound objects 2020 BS1 and 2020 BN and for six departed objects: 2020 BZ1, 2020 BN1, 2020 BD, 2019 YA1, and including risk-listed 2020 BY1 and 2020 BD1, as well as observations from December of risk-listed 2019 WV1 (6.05 days added to 2.75-day observing arc) and from October of 2019 PM (84.37 days added to 2.50).

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. 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 23 January '20

Radar observation of one object

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

Data update noted at 0105 UTC when the database was dated 22 Jan.

216258 2006 WH1 from Arecibo (Dec. 13.22 range & 13.25 range)

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

NEOCP Activity on 23 January '20

The MPC's NEO Confirmation Page has 128 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 128 objects listed. Of these, 65 were "one nighters." So far The Tracking News has counted a total of 160 listings on the NEOCP today.

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object at Suno Observatory by Birtwhistle et al.

New MPECs on 23 January '20

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been seventeen MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2020-B88 time-stamped "01:00 UT" - 2020 BQ3 - see below
MPEC 2020-B89 time-stamped "01:02 UT" - 2020 BR3 - see below
MPEC 2020-B90 time-stamped "01:04 UT" - 2020 BS3 - see below
MPEC 2020-B91 time-stamped "01:05 UT" - 2020 BT3 - see below
MPEC 2020-B92 time-stamped "01:08 UT" - 2020 BU3 - see below
MPEC 2020-B93 time-stamped "15:19 UT" - 2008 AG1 - see below
MPEC 2020-B94 time-stamped "15:33 UT" - Daily Orbit Update - see below
MPEC 2020-B95 time-stamped "16:05 UT" - Daily Orbit Update - see below
MPEC 2020-B96 time-stamped "16:20 UT" - 2020 BX3 - see below
MPEC 2020-B97 time-stamped "16:27 UT" - 2011 CK50 - see below
MPEC 2020-B98 time-stamped "16:39 UT" - 2020 BA4 - see below
MPEC 2020-B99 time-stamped "16:48 UT" - 2020 BF4 - see below
MPEC 2020-B100 time-stamped "17:10 UT" - 2020 BJ4 - see below
MPEC 2020-B101 time-stamped "17:14 UT" - 2020 BK4 - see below
MPEC 2020-B102 time-stamped "17:18 UT" - 2020 BL4 - see below
MPEC 2020-B103 time-stamped "21:32 UT" - 2016 AJ9 - see below
MPEC 2020-B104 time-stamped "23:48 UT" - 2016 AJ193

MPEC 2020-B104 - "23:48 UT" - 2016 AJ193

K16AJ3J 2016 AJ193 (Q=5.926 AU, Earth MOID=6.3 LD, H=18.6 ~645m) from the Catalina Sky Survey (CSS) (2010 March 15.21-23p4) and the Spacewatch 0.9m telescope (2016 Jan. 16.55-56p3)

MPEC 2020-B103 - "21:32 UT" - 2016 AJ9

K16A09J 2016 AJ9 (small asteroid, H=24.3 ~47m) from Pan-STARRS 1 (PS1) (2011 Nov. 15.49-50p2 at G=21.7-9, 2011 Nov. 25.50-53p3 at G=21.9-22.9, 2011 Dec. 2.52-53p2 at G=21.6-22.6, 2011 Dec. 23.55-56p2 at G=20.7-21.0, 2016 Jan. 16.38p1 at G=22.3, 2016 Jan. 21.39-42p3 at G=21.6-22.2, 2016 Jan. 27.50p1 at G=21.7, 2016 Feb. 4.39-43p4 at G=21.2-22.2, Nov. 7.41-43p2 at G=22.8-23.3 & Jan. 23.33-35p3 at w=21.46-22.27) and Pan-STARRS 2 (PS2) (Jan. 16.42p1 & 20.40-42p3)

MPEC 2020-B102 - "17:18 UT" - 2020 BL4

K20B04L 2020 BL4 (Earth MOID=4.2 LD, H=26.6 ~16m) was picked up at 0836 UT on 19 Jan. by the Mt. Lemmon Survey (MLS), observing it at Jan. 19.36-37p4 at G=21.5-22.6, 19.47-48p4 at G=21.8-22.3, and 23.38-39p4 at G=21.9-22.0. This detection was confirmed by Magdalena Ridge Obs. (MRO) (Jan. 19.39-42p4 at G=21.8-22.1).

MPEC 2020-B101 - "17:14 UT" - 2020 BK4

K20B04K 2020 BK4 (small asteroid, Earth MOID=4.1 LD, H=22.5 ~107m) was picked up at 1026 UT on 21 Jan. by PS1, observing it at Jan. 21.43-47p3 at w=21.82-22.02 and 22.48-52p4 at w=21.65-22.06. This detection was confirmed by Schwarzschild Obs. (Jan. 22.11p2 at V=22.5-23.1) and the Spacewatch 1.8m telescope (Jan. 23.33-35p3 at R=21.9-22.3).

MPEC 2020-B100 - "17:10 UT" - 2020 BJ4

K20B04J 2020 BJ4 (borderline-small, Q=4.786 AU, Earth MOID=4.9 LD, H=21.9 ~141m) was picked up at 0858 UT on 21 Jan. by PS1, observing it at Jan. 19.39-42p3 at G=22.3-8 and 21.37-42p4 at w=22.07-33. This detection was confirmed by PS2 (Jan. 22.40-44p4 at G=21.7-22.4) and Spacewatch 1.8m (Jan. 23.44-45p3 at R=22.4-5).

MPEC 2020-B99 - "16:48 UT" - 2020 BF4

K20B04F 2020 BF4 (H=20.0 ~339m) was picked up at 0544 UT on 20 Jan. by PS1, observing it at Jan. 20.24-26p3. This detection was confirmed by Visnjan Obs. (Jan. 20.78p3), Robert Holmes via Cerro Tololo Inter-American Obs. (CTIO) (Jan. 21.09-10p3), KLENOT (Jan. 21.77-78p8), Astronomical Research Obs. Westfield (Jan. 22.08-09p3), and Spacewatch 0.9m (Jan. 23.17-18p3).

MPEC 2020-B98 - "16:39 UT" - 2020 BA4

K20B04A 2020 BA4 (H=20.2 ~309m) was picked up at 1036 UT on 21 Jan. by ATLAS Haleakala, observing it at Jan. 21.44-47p4. This detection was confirmed by KLENOT (Jan. 21.98-99p12), Steward Obs. Mt. Lemmon Station (Jan. 23.33-36p4), LCO Cerro Tololo A (Jan. 23.37-38p3), ATLAS Mauna Loa (Jan. 23.42-44p4), and Mt. John Obs. (Jan. 23.53-54p3).

MPEC 2020-B97 - "16:27 UT" - 2011 CK50

K11C50K 2011 CK50 (H=24.2 ~49m, NHATS) from PS1 (Jan. 2.57-60p4 at G=22.0-22.8 & 20.42-45p4 at G=20.5-22.1), PS2 (Jan. 21.43-45p3), Schwarzschild Obs. (Jan. 21.92-93p3), Visnjan Obs. (Jan. 23.02-03p3), and Schiaparelli Obs. (Jan. 23.07-10p2)

MPEC 2020-B96 - "16:20 UT" - 2020 BX3

K20B03X 2020 BX3 (H=19.5 ~426m) was picked up at 1042 UT on 19 Jan. by PS1, observing it at Dec. 24.52-55p3 at G=22.6-23.2, Jan. 19.45-48p4 at w=21.80-22.39, 20.43-45p3 at w=21.7-9, and 21.58-61p4 at w=21.72-22.07. This detection was confirmed by Spacewatch 1.8m (Jan. 20.43-44p3 at R=22.0-22.9 & 23.36p2 at R=21.9-22.2) and PS2 (Jan. 21.44-47p3).

<< DOU on 23 January '20 >> MPEC 2020-B95 - "16:05 UT" - Daily Orbit Update

Observations of small asteroids (H>22.0)
K20B02Q 2020 BQ2 (Q=4.574 AU, arc=30 days, H=25.2 ~31m) from the Zwicky Transient Facility (ZTF) (Jan. 23.25-26p2 & 23.30-33p4)
K20B01T 2020 BT1 (arc=4 days, H=25.9 ~22m) from MLS (Jan. 23.35-36p4)
K20B01K 2020 BK1 (q=0.338 AU, arc=26 days, H=22.8 ~93m) from MLS (Jan. 23.28-29p4)
K20A02U 2020 AU2 (arc=25 days, H=25.1 ~32m) from MLS (Jan. 23.48-50p4)
K20A01W 2020 AW1 (arc=19 days, H=25.4 ~28m) from MLS (Jan. 23.48-50p4)
Observations of other objects
K20B00V 2020 BV from MLS (Jan. 23.20-22p4)
K19T07F 2019 TF7 (Q=4.304 AU, arc=127 days, H=17.9 ~891m) from MLS (Jan. 23.17-19p4 at G=21.6-22.2)
K19S09C 2019 SC9 (Q=4.568 AU, arc=171 days, H=21.7 ~155m) from MLS (Jan. 23.27-29p4)
01916 1916 Boreas (1953 RA) from Spacewatch 0.9m (Jan. 23.43-46p3)

<< DOU on 23 January '20 >> MPEC 2020-B94 - "15:33 UT" - Daily Orbit Update

Observations of risk-listed objects
K20B03U 2020 BU3 (small asteroid, Q=4.605 AU, arc=4 days, H=23.3 ~74m) from MLS (Jan. 23.30-32p4)
K20B01Y 2020 BY1 (small asteroid, arc=3 days, H=26.1 ~20m, close passer) from Steward Mt. Lemmon Sta. (Jan. 23.29-30p3) and Spacewatch 0.9m (Jan. 23.31-33p3)
K20B01D 2020 BD1 (small asteroid, arc=5 days, H=27.4 ~11m, close passer) from Spacewatch 1.8m (Jan. 23.41-42p2)
K19W01V 2019 WV1 (small asteroid, arc=9 days, H=28.0 ~9m, close passer, NHATS target) from UH/Tholen NEO Follow-Up 2.24m Telescope (Dec. 3.42p1 at G=23.00)
99942 99942 Apophis (2004 MN4) (NHATS target) from KLENOT (Jan. 21.75p2) and Haute Provence Obs. (Jan. 22.76-78p9)
Observations of recently (no longer) risk-listed objects
K20A00K 2020 AK (arc=24 days, H=19.3 ~467m) from PS1 (Jan. 22.60-63p3)
K19Y03J 2019 YJ3 (small asteroid, Q=4.667 AU, arc=30 days, H=22.8 ~93m) from PS2 (Jan. 23.24-26p2)
Observations of close-passing objects
K20B01Z 2020 BZ1 (arc=3 days, H=26.8 ~15m) from PS2 (Jan. 22.56-58p3)
K20B01S 2020 BS1 (arc=3 days, H=26.3 ~19m, NHATS target) from ATLAS Mauna Loa (Jan. 22.43-45p3) and ATLAS Haleakala (Jan. 23.38-40p4)
K20B01N 2020 BN1 (arc=5 days, H=27.6 ~10m) from MLS (Jan. 23.39-41p4)
K20B00N 2020 BN (arc=5 days, H=27.8 ~9m) from Steward Mt. Lemmon Sta. (Jan. 23.31-32p4)
K20B00D 2020 BD (arc=5 days, H=26.3 ~19m) from Steward Mt. Lemmon Sta. (Jan. 23.41-42p3) and Spacewatch 1.8m (Jan. 23.53-54p2)
K19Y01A 2019 YA1 (arc=34 days, H=25.4 ~28m, NHATS target) from PS1 (Jan. 22.49-51p3 at w=21.65-22.19)
K19P00M 2019 PM (arc=87 days, H=23.5 ~68m) from Tholen 2.24m (2019 Oct. 31.42p1 at G=24.38)
Observation campaigns (NHATS targets, radar support)
K20A03O 2020 AO3 (arc=8 days, H=24.6 ~41m, NHATS) from Dettelbach Vineyard Obs. (Jan. 21.94-95p3)
K19Y01G 2019 YG1 (arc=33 days, H=25.2 ~31m, NHATS) from Holmes/CTIO (Jan. 21.17-18p3)
K19W04R 2019 WR4 (arc=56 days, H=26.1 ~20m, NHATS) from PS2 (Jan. 22.63-66p3)
K19W04O 2019 WO4 (arc=82 days, H=23.5 ~68m, NHATS) from Spacewatch 1.8m (Jan. 23.09-12p3)
K19S02F 2019 SF2 (arc=2 opp, H=23.3 ~74m, NHATS) from PS1 (Jan. 22.32-35p3 at w=21.6-22.4)
K17A05E 2017 AE5 (arc=5 opp, H=22.3 ~117m, NHATS) from Lumezzane Obs. (Jan. 21.07-08p4) and ATLAS Mauna Loa (Jan. 22.47-49p6)
K11UT2C 2011 UC292 (arc=2 opp, H=22.8 ~93m, NHATS) from PS2 (Jan. 22.50-53p7)
K11U63V 2011 UV63 (arc=3 opp, H=21.7 ~155m, NHATS) from MLS (Jan. 23.54-55p4 at G=21.4-22.7)
-- NHATS target table
Observations of small (H>22.0) & smallish (21.7<H<=22.0) asteroids
K20B03B 2020 BB3 (arc=3 days, H=22.4 ~112m) from Savelli Obs. (Jan. 22.78-79p3) and Castelmartini Obs. (Jan. 22.79-80p5)
K20B02X 2020 BX2 (arc=2 days, H=25.2 ~31m) from PS1 (Jan. 22.41-45p4)
K20B02W 2020 BW2 (arc=4 days, H=24.5 ~43m) from PS1 (Jan. 22.37-41p4 at w=21.83-22.02) and MLS (Jan. 23.32-34p4 at G=21.4-22.6)
K20B02O 2020 BO2 (arc=2 days, H=26.4 ~18m) from PS1 (Jan. 22.37-41p4) and Steward Mt. Lemmon Sta. (Jan. 23.31p4)
K20B01Q 2020 BQ1 (arc=4 days, H=22.9 ~89m) from PS1 (Jan. 22.41-44p4)
K20B01O 2020 BO1 (arc=3 days, H=22.1 ~129m) from ATLAS Mauna Loa (Jan. 22.47-48p3)
K20B01H 2020 BH1 (arc=3 days, H=24.6 ~41m) from Dettelbach Vineyard Obs. (Jan. 21.88-89p3)
K20B01A 2020 BA1 (arc=5 days, H=24.2 ~49m) from Steward Mt. Lemmon Sta. (Jan. 23.30p4)
K20B00V 2020 BV (arc=24 days, H=22.6 ~102m) from Dettelbach Vineyard Obs. (Jan. 21.84-85p3) and Povegliano Veronese Obs. (Jan. 22.76-77p4)
K20B00U 2020 BU (arc=4 days, H=26.0 ~21m) from Steward Mt. Lemmon Sta. (Jan. 23.30-31p4)
K20B00T 2020 BT (arc=3 days, H=24.3 ~47m) from KLENOT (Jan. 21.80p2)
K20B00O 2020 BO (arc=3 days, H=25.4 ~28m) from Lumezzane Obs. (Jan. 20.92p2)
K20B00J 2020 BJ (arc=5 days, H=24.7 ~39m) from KLENOT (Jan. 22.07p10) and Steward Mt. Lemmon Sta. (Jan. 23.41p3)
K20A02S 2020 AS2 (arc=122 days, H=22.8 ~93m) from PS1 (Jan. 21.50-53p3), Schwarzschild Obs. (Jan. 21.95p3 & 22.14p3), KLENOT (Jan. 22.03p4), and ARO Westfield (Jan. 22.27-28p3)
K20A01M 2020 AM1 (arc=25 days, H=24.7 ~39m) from MLS (Jan. 23.45p4 at G=21.2-22.5)
K19Y04E 2019 YE4 (arc=26 days, H=22.6 ~102m) from CSS (Jan. 23.33-35p3)
K19Y03W 2019 YW3 (arc=28 days, H=22.8 ~93m) from Holmes/CTIO (Jan. 21.36-37p3)
K19Y03M 2019 YM3 (arc=26 days, H=23.3 ~74m) from PS2 (Jan. 22.45-48p4)
K19Q02F 2019 QF2 (arc=177 days, H=22.7 ~98m) from PS1 (Jan. 22.42-44p3)
K15DK0D 2015 DD200 (arc=2 opp, H=22.8 ~93m) from MLS (Jan. 23.36-38p4) and Steward Mt. Lemmon Sta. (Jan. 23.49-50p3)
K13D00U 2013 DU (arc=2 opp, H=24.0 ~54m) from PS1 (Jan. 22.53-56p3)
K04B58T 2004 BT58 (arc=3 opp, H=22.2 ~123m) from CSS (Jan. 23.23-24p4)
K20B00E 2020 BE (i=47.7°, arc=4 days, H=21.8 ~148m) from Al-Fulaij Obs. (Jan. 20.70-72p8), Lumezzane Obs. (Jan. 20.90-91p4), Dettelbach Vineyard Obs. (Jan. 21.86-87p4), and Castelmartini Obs. (Jan. 22.90p3)
K20A02R 2020 AR2 (arc=19 days, H=21.8 ~148m) from MLS (Jan. 23.51-53p12)
K19Y01L 2019 YL1 (arc=35 days, H=21.8 ~148m) from PS1 (Jan. 23.29-32p4)
K19X01L 2019 XL1 (arc=51 days, H=22.0 ~135m) from PS2 (Jan. 22.64-66p3) and CSS (Jan. 23.49-51p2)
Observations of other objects
K20B00R 2020 BR from Al-Fulaij Obs. (Jan. 20.74p4), Dettelbach Vineyard Obs. (Jan. 21.92-93p4), and Steward Mt. Lemmon Sta. (Jan. 23.26p4)
K20A03D 2020 AD3 (arc=16 days, H=21.6 ~162m) from Lumezzane Obs. (Jan. 20.93-94p3) and CSS (Jan. 23.23-25p4)
K20A00J 2020 AJ (arc=49 days, H=20.5 ~269m) from PS1 (Jan. 22.54-56p3)
K19Y05Z 2019 YZ5 (i=36.3°, arc=22 days, H=20.0 ~339m) from Holmes/CTIO (Jan. 21.32-34p3)
K19Y04S 2019 YS4 (arc=26 days, H=19.8 ~371m) from PS2 (Jan. 22.40-43p4)
K19Y02D 2019 YD2 (arc=2 opp, H=21.7 ~155m) from CSS (Jan. 23.33-35p2)
K19X01G 2019 XG1 (Q=4.163 AU, arc=2 opp, H=19.1 ~513m) from Lumezzane Obs. (Jan. 20.95-96p4), PS2 (Jan. 22.41-44p4), and ATLAS Mauna Loa (Jan. 22.43-45p8)
K19W06R 2019 WR6 (arc=54 days, H=21.4 ~178m) from PS2 (Jan. 22.35-39p4)
K19W06B 2019 WB6 (arc=58 days, H=20.5 ~269m) from ATLAS Haleakala (Jan. 22.45-47p4)
K19W04U 2019 WU4 (arc=59 days, H=21.2 ~195m) from PS1 (Jan. 22.27-30p7)
K19U11B 2019 UB11 (Q=4.595 AU, arc=166 days, H=20.6 ~257m) from Lumezzane Obs. (Jan. 20.86p2)
K19T06H 2019 TH6 (arc=3 opp, H=19.0 ~537m) from ATLAS Mauna Loa (Jan. 22.29-31p4)
K19S06H 2019 SH6 (arc=2 opp, H=20.0 ~339m) from CSS (Jan. 23.38-39p4)
K19Q06R 2019 QR6 (Q=10.376 AU, arc=145 days, H=20.0 ~339m) from PS2 (Jan. 22.41-43p3)
K19P02R 2019 PR2 (Q=10.374 AU, arc=165 days, H=18.8 ~589m) from PS2 (Jan. 22.40-43p4)
K19O05A 2019 OA5 (Q=4.233 AU, arc=181 days, H=18.9 ~562m) from Spacewatch 0.9m (Jan. 23.09-10p3)
K18B03N 2018 BN3 (arc=5 opp, H=20.4 ~282m) from MLS (Jan. 23.43-45p4 at G=21.4-22.6)
K18B00P 2018 BP (arc=3 opp, H=20.7 ~245m) from Lumezzane Obs. (Jan. 20.99p4)
K17M04X 2017 MX4 (arc=4 opp, H=20.8 ~234m) from CSS (Jan. 23.33-35p4)
K17B03F 2017 BF3 (arc=3 opp, H=20.8 ~234m) from PS1 (Jan. 22.48-51p3 at w=22.2-4)
K16J18G 2016 JG18 (arc=4 opp, H=18.6 ~645m) from PS1 (Jan. 22.48-51p3 at w=22.4-7)
K16CJ5J 2016 CJ195 (arc=4 opp, H=19.0 ~537m) from PS1 (Jan. 22.64-66p4)
K16AE7X 2016 AX147 (arc=4 opp, H=17.7 ~977m) from PS1 (Jan. 22.41-45p4) and CSS (Jan. 23.27-29p4)
K15XZ1K 2015 XK351 (arc=4 opp, H=20.3 ~295m) from SATINO-1 (Jan. 3.87-89p2) and ATLAS Haleakala (Jan. 22.30-32p4)
K15W13H 2015 WH13 (Q=4.485 AU, arc=4 opp, H=18.9 ~562m) from PS1 (Jan. 22.33-36p3 at w=22.2)
K15O78X 2015 OX78 (i=40.4°, arc=3 opp, H=20.0 ~339m) from Lumezzane Obs. (Jan. 20.97p4), Castelmartini Obs. (Jan. 23.02-03p3), CSS (Jan. 23.23-24p4), and MLS (Jan. 23.28-29p4)
K15HB6U 2015 HU116 (arc=3 opp, H=19.9 ~355m) from ATLAS Haleakala (Jan. 22.36-38p4)
K14Y43U 2014 YU43 (arc=3 opp, H=19.7 ~389m) from PS1 (Jan. 22.38-40p3)
K14Y34W 2014 YW34 (arc=3 opp, H=21.7 ~155m) from MLS (Jan. 23.30-32p4)
K14Qd0X 2014 QX390 (arc=2 opp, H=19.9 ~355m) from MLS (Jan. 23.51-53p4)
K14QQ6P 2014 QP266 (arc=3 opp, H=19.6 ~407m) from PS1 (Jan. 23.25-27p3 at w=21.9-22.1)
K14N64F 2014 NF64 (Q=4.904 AU, arc=5 opp, H=18.2 ~776m) from Al-Fulaij Obs. (Jan. 20.70p4) and Castelmartini Obs. (Jan. 22.91p3)
K14M55M 2014 MM55 (Q=4.242 AU, arc=4 opp, H=18.8 ~589m) from PS1 (Jan. 22.41-44p4 at w=21.9-22.4)
K14D23H 2014 DH23 (arc=3 opp, H=21.3 ~186m) from MLS (Jan. 23.48-50p4)
K14A17D 2014 AD17 (arc=3 opp, H=20.2 ~309m) from CSS (Jan. 23.18-20p2)
K13P02V 2013 PV2 (arc=3 opp, H=20.0 ~339m) from MLS (Jan. 23.18-19p4)
K13C89K 2013 CK89 (arc=4 opp, H=18.1 ~812m) from PS1 (Jan. 23.24-27p4)
K12BC4E 2012 BE124 (q=0.229 AU, Q=4.847 AU, arc=3 opp, H=19.5 ~426m) from ATLAS Mauna Loa (Jan. 22.47-49p4)
K11M05E 2011 ME5 (i=37.3°, arc=4 opp, H=19.5 ~426m) from MLS (Jan. 23.20-22p3)
K11C04T 2011 CT4 (arc=3 opp, H=20.7 ~245m) from Lumezzane Obs. (Jan. 21.10p4) and CSS (Jan. 23.27-29p4)
K11A52O 2011 AO52 (Q=4.408 AU, arc=3 opp, H=18.2 ~776m) from PS2 (Jan. 22.29-33p4)
K10U07E 2010 UE7 (arc=4 opp, H=19.2 ~490m) from PS2 (Jan. 22.62-66p4 at w=21.6-22.2)
K10D01N 2010 DN1 (arc=3 opp, H=18.8 ~589m) from MLS (Jan. 23.18-20p4)
K10C55H 2010 CH55 (arc=3 opp, H=19.6 ~407m) from PS2 (Jan. 22.56-60p6)
K09N00H 2009 NH (arc=3 opp, H=18.7 ~616m) from PS1 (Jan. 22.41-45p4 at w=21.8-22.1)
K08Y32X 2008 YX32 (arc=6 opp, H=20.8 ~234m) from ATLAS Mauna Loa (Jan. 22.50-52p4)
K08X00P 2008 XP (arc=2 opp, H=21.0 ~214m) from PS1 (Jan. 22.64-66p4)
K08O01X 2008 OX1 (arc=4 opp, H=21.6 ~162m) from PS1 (Jan. 22.44-45p2) and CSS (Jan. 23.27-29p3)
K08A33J 2008 AJ33 (Q=5.419 AU, arc=3 opp, H=20.1 ~323m) from MLS (Jan. 23.36-38p4 at G=21.4-22.2)
K07B29J 2007 BJ29 (q=0.381 AU, arc=3 opp, H=18.8 ~589m) from ATLAS Haleakala (Jan. 22.46-48p4)
K01Y04M 2001 YM4 (arc=3 opp, H=19.9 ~355m) from MLS (Jan. 23.18-19p4)
J96A02E 1996 AE2 (i=37.4°, arc=4 opp, H=20.3 ~295m) from ATLAS Mauna Loa (Jan. 22.47-49p4)
q8609 528609 2008 VU4 from MLS (Jan. 23.18-19p4)
p6986 516986 2012 QP10 from Lumezzane Obs. (Jan. 20.87-88p2)
p2245 512245 2016 AU8 from ATLAS Haleakala (Jan. 22.47-50p4)
p2244 512244 2015 YE18 from ATLAS Haleakala (Jan. 22.23-26p6)
p1684 511684 2015 BN509 from CSS (Jan. 23.25-27p4)
o3880 503880 2000 YJ29 from PS1 (Jan. 22.32-36p4)
n2143 492143 2013 OE from ATLAS Haleakala (Jan. 22.25-27p4)
m8490 488490 2000 AF205 from PS1 (Jan. 22.48-50p3)
m3878 483878 2005 YS165 from ATLAS Mauna Loa (Jan. 22.52-55p7)
l4223 474223 2001 CC32 from CSS (Jan. 23.33-35p4)
j8745 458745 2011 QY37 from Castelmartini Obs. (Jan. 23.01p3)
j8732 458732 2011 MD5 from Al-Fulaij Obs. (Jan. 20.67p4) and ATLAS Haleakala (Jan. 22.30-33p4)
j6973 456973 2008 BS2 from MLS (Jan. 23.29-32p3)
j5322 455322 2002 NX18 from Lumezzane Obs. (Jan. 21.04p3), PS1 (Jan. 22.41-44p4), and CSS (Jan. 23.27-29p4)
i8818 448818 2011 UU20 from ATLAS Mauna Loa (Jan. 22.24-27p4)
i2609 442609 2012 KU42 from PS1 (Jan. 22.41-45p4 at w=21.8-22.2)
i2243 442243 2011 MD11 from PS2 (Jan. 23.23-27p4)
h9898 439898 2000 TG2 from PS1 (Jan. 22.59-62p4)
h8452 438452 2007 AS12 from Lumezzane Obs. (Jan. 20.99-01p4), PS2 (Jan. 22.50-54p4), and CSS (Jan. 23.25-27p4)
h7316 437316 2013 OS3 from Al-Fulaij Obs. (Jan. 20.72-73p3), Foxfire Village Obs. (Jan. 22.02-04p3), Castelmartini Obs. (Jan. 22.93p3), and iTelescope Obs. Mayhill (Jan. 23.36-37p3)
g7778 427778 2005 BE from Castelmartini Obs. (Jan. 22.99-00p3) and MLS (Jan. 23.25-27p4)
f6591 416591 2004 LC2 from Lumezzane Obs. (Jan. 21.10-11p4), ATLAS Mauna Loa (Jan. 22.49-51p4), PS1 (Jan. 22.64-66p4), and MLS (Jan. 23.46p4)
f6002 416002 2002 BN from Castelmartini Obs. (Jan. 22.89p1)
f5267 415267 2013 BQ45 from PS2 (Jan. 22.42-44p3)
e5562 405562 2005 OJ3 from PS2 (Jan. 22.56-58p3 at w=22.1-2)
c6847 386847 2010 LR33 from MLS (Jan. 23.28-29p4)
c6298 386298 2008 SR7 from MLS (Jan. 23.35-36p4)
c5268 385268 2001 RC12 from PS1 (Jan. 22.54-57p3)
b4188 374188 2005 AD3 from Lumezzane Obs. (Jan. 21.01-02p4) and CSS (Jan. 23.25-26p3)
a6733 366733 2004 BG121 from PS2 (Jan. 22.24-26p3)
a3814 363814 2005 ND7 from PS2 (Jan. 22.40-43p4)
Z8453 358453 2007 EH88 from MLS (Jan. 23.43-45p4)
Z4876 354876 2006 BG55 from PS2 (Jan. 22.51-54p4)
Z4101 354101 2001 YF1 from PS1 (Jan. 22.32-36p4)
Z4030 354030 2001 RB18 from Glendora Obs. (2019 Aug. 30.29-30p4)
Y9219 349219 2007 SV11 from PS2 (Jan. 22.50-53p4)
Y8400 348400 2005 JF21 from PS1 (Jan. 22.42-45p4 at w=21.6-22.1)
Y3158 343158 2009 HC82 from MLS (Jan. 23.43-45p4)
X8347 338347 2002 XG4 from ATLAS Haleakala (Jan. 22.29-31p4)
X8292 338292 2002 UA31 from PS1 (Jan. 23.22-24p4 at w=21.8-22.1)
X3555 333555 2005 VY17 from ATLAS Mauna Loa (Jan. 22.24-27p4)
X1769 331769 2003 BQ35 from PS1 (Jan. 22.42-44p3)
W9520 329520 2002 SV from MLS (Jan. 23.43-45p4 at G=21.2-22.4)
W9340 329340 2001 LM5 from ATLAS Haleakala (Jan. 22.42-44p4)
W2652 322652 1999 JO8 from PS1 (Jan. 22.64-66p4)
V9988 319988 2007 DK from PS2 (Jan. 22.50-54p3)
V1044 311044 2004 BB103 from ATLAS Haleakala (Jan. 22.32-34p4)
V0442 310442 2000 CH59 from Al-Fulaij Obs. (Jan. 20.69p4), ATLAS Haleakala (Jan. 22.33-35p4 at c=18.11-24.27), and Castelmartini Obs. (Jan. 22.88p3)
U7070 307070 2002 AV31 from Lumezzane Obs. (Jan. 21.02-03p3) and CSS (Jan. 23.29p1)
U3174 303174 2004 FH11 from PS2 (Jan. 22.45-47p3)
P0577 250577 2005 AC from Muensterschwarzach Obs. (Jan. 21.22p4)
O3025 243025 2006 UM216 from ATLAS Haleakala (Jan. 22.36-38p4) and Castelmartini Obs. (Jan. 22.97-98p3)
N2368 232368 2003 AZ2 from PS1 (Jan. 22.41-45p4) and CSS (Jan. 23.27-29p3)
L4088 214088 2004 JN13 from Castelmartini Obs. (Jan. 23.02p3)
K3015 203015 1999 YF3 from ATLAS Haleakala (Jan. 22.46-48p4)
I7040 187040 2005 JS108 from PS1 (Jan. 23.23-24p3)
H4806 174806 2003 XL from MLS (Jan. 23.13-15p4)
H3561 173561 2000 YV137 from PS1 (Jan. 22.28-31p3)
G4221 164221 2004 QE20 from PS2 (Jan. 22.50-53p4)
G3696 163696 2003 EB50 from ATLAS Mauna Loa (Jan. 22.31-33p4)
G3373 163373 2002 PZ39 from Landehen Obs. (Jan. 19.89-94p5), Saarbruecken Rastpfuhl Obs. (Jan. 22.87p2), Crni Vrh Obs. (Jan. 22.97-01p4), AHS Obs. (Jan. 23.17-26p12), and CSS (Jan. 23.27-29p4)
G2452 162452 2000 HO14 from PS1 (Jan. 22.48-51p3 at w=22.5-7)
G2082 162082 1998 HL1 from PS1 (Jan. 23.26-28p3)
G2080 162080 1998 DG16 from ATLAS Mauna Loa (Jan. 22.54-56p4)
F5334 155334 2006 DZ169 from PS1 (Jan. 22.37-41p4) and MLS (Jan. 23.32-34p4)
F3958 153958 2002 AM31 from PS1 (Jan. 22.42-45p4)
F2931 152931 2000 EA107 from CSS (Jan. 23.48-50p4)
F2679 152679 1998 KU2 from PS2 (Jan. 22.51-53p3)
D8846 138846 2000 VJ61 from CSS (Jan. 23.16-18p4)
D8325 138325 2000 GO82 from PS2 (Jan. 22.45-48p3)
D7925 137925 2000 BJ19 from Al-Fulaij Obs. (Jan. 20.68p4), Tentlingen Obs. (Jan. 21.87-90p3), PS2 (Jan. 22.30-34p3), and ATLAS Haleakala (Jan. 22.32-34p4)
D7924 137924 2000 BD19 from Muensterschwarzach Obs. (Jan. 21.21p3) and CSS (Jan. 23.38-39p2)
D7199 137199 1999 KX4 from Wickede Obs. (Jan. 21.78-79p11), Foxfire Village Obs. (Jan. 22.02-04p3), ATLAS Mauna Loa (Jan. 22.35-37p6), and Castelmartini Obs. (Jan. 22.98-99p3)
D7084 137084 1998 XS16 from CSS (Jan. 23.13-15p4)
D6993 136993 1998 ST49 from ATLAS Mauna Loa (Jan. 22.58-60p4)
D6795 136795 1997 BQ from ATLAS Mauna Loa (Jan. 22.31-33p4)
D6582 136582 1992 BA from PS1 (Jan. 22.48-52p4)
A6589 106589 2000 WN107 from Tentlingen Obs. (Jan. 21.84p2) and ATLAS Haleakala (Jan. 22.26-29p8)
A6538 106538 2000 WK63 from Al-Fulaij Obs. (Jan. 20.66p3), ATLAS Haleakala (Jan. 22.29-31p4), and Castelmartini Obs. (Jan. 22.83p3)
A3067 103067 1999 XA143 from Al-Fulaij Obs. (Jan. 20.75p4)
99248 99248 2001 KY66 from Castelmartini Obs. (Jan. 22.86-87p3) and CSS (Jan. 23.18-20p4)
96315 96315 1997 AP10 from ATLAS Haleakala (Jan. 22.51-53p4)
96189 96189 Pygmalion (1991 NT3) from MLS (Jan. 23.18-20p4)
90075 90075 2002 VU94 from ATLAS Haleakala (Jan. 22.39-41p4)
89830 89830 2002 CE from ATLAS Mauna Loa (Jan. 22.59-61p4)
86326 86326 1999 WK13 from MLS (Jan. 23.13-15p4) and CSS (Jan. 23.16-18p4)
86067 86067 1999 RM28 from CSS (Jan. 23.42-44p4)
85713 85713 1998 SS49 from PS1 (Jan. 23.23-24p4)
85628 85628 1998 KV2 from CSS (Jan. 23.44-45p4)
68350 68350 2001 MK3 from CSS (Jan. 23.44-46p3)
65674 65674 1988 SM from PS2 (Jan. 22.62-66p4)
54686 54686 2001 DU8 from ATLAS Haleakala (Jan. 22.51-52p4)
53550 53550 2000 BF19 from MLS (Jan. 23.28-29p4 at G=21.2-22.3)
53426 53426 1999 SL5 from PS2 (Jan. 22.45-48p4)
52768 52768 1998 OR2 from Al-Fulaij Obs. (Jan. 20.75-76p4), PS2 (Jan. 22.40-44p3), and Saarbruecken Rastpfuhl Obs. (Jan. 22.81p2)
39796 39796 1997 TD from PS2 (Jan. 22.62-66p4)
36284 36284 2000 DM8 from CSS (Jan. 23.31-33p4)
36236 36236 1999 VV from ATLAS Haleakala (Jan. 22.26-28p4)
35107 35107 1991 VH from ATLAS Haleakala (Jan. 22.49-51p4)
34613 34613 2000 UR13 from CSS (Jan. 23.25-27p4)
30825 30825 1990 TG1 from Al-Fulaij Obs. (Jan. 20.71-72p4) and Castelmartini Obs. (Jan. 22.99p3)
26760 26760 2001 KP41 from PS2 (Jan. 22.62-66p3)
20255 20255 1998 FX2 from Lumezzane Obs. (Jan. 20.88-89p2)
18172 18172 2000 QL7 from roving observer (Jan. 14.88-89p4), Al-Fulaij Obs. (Jan. 20.73p4), and ATLAS Mauna Loa (Jan. 22.40-42p4)
16816 16816 1997 UF9 from PS1 (Jan. 23.23-24p4)
15745 15745 Yuliya (1991 PM5) from CSS (Jan. 23.32-33p3)
11405 11405 1999 CV3 from Al-Fulaij Obs. (Jan. 20.68-69p4) and ATLAS Haleakala (Jan. 22.34-36p4)
10145 10145 1994 CK1 from CSS (Jan. 23.27-29p4)
10115 10115 1992 SK from CSS (Jan. 23.48-50p4)
07088 7088 Ishtar (1992 AA) from CSS (Jan. 23.38-39p4)
06456 6456 Golombek (1992 OM) from MLS (Jan. 23.30-32p4)
06455 6455 1992 HE from Tentlingen Obs. (Jan. 21.74-75p2 & 21.79p1) and ATLAS Mauna Loa (Jan. 22.24-26p4)
06239 6239 Minos (1989 QF) from MLS (Jan. 23.16-17p4) and PS2 (Jan. 23.31-32p2)
05693 5693 1993 EA from CSS (Jan. 23.33-35p4)
05626 5626 1991 FE from ATLAS Haleakala (Jan. 22.37-39p4) and CSS (Jan. 23.27-29p4)
04487 4487 Pocahontas (1987 UA) from ATLAS Haleakala (Jan. 22.37-39p4)
04450 4450 Pan (1987 SY) from MLS (Jan. 23.23-25p4)
03752 3752 Camillo (1985 PA) from CSS (Jan. 23.53-55p4)
03102 3102 Krok (1981 QA) from ATLAS Haleakala (Jan. 22.30-32p4)
02100 2100 Ra-Shalom (1978 RA) from Glendora Obs. (2019 Aug. 28.27-35p4)
02059 2059 Baboquivari (1963 UA) from Glendora Obs. (2019 Aug. 24.19-21p4), Al-Fulaij Obs. (Jan. 20.65-66p4), and ATLAS Haleakala (Jan. 22.26-29p4)
01916 1916 Boreas (1953 RA) from PS1 (Jan. 22.39-40p2)
01866 1866 Sisyphus (1972 XA) from ATLAS Mauna Loa (Jan. 22.32-34p4)
01864 1864 Daedalus (1971 FA) from CSS (Jan. 23.34-35p4) and MLS (Jan. 23.46-48p4)
01627 1627 Ivar (1929 SH) from CSS (Jan. 23.27-29p4)
00719 719 Albert (1911 MT) from PS1 (Jan. 22.48-51p4)

MPEC 2020-B93 - "15:19 UT" - 2008 AG1

K08A01G 2008 AG1 (H=21.1 ~204m) from PS2 (Jan. 18.60-62p3, 20.55-57p3 & 22.56-60p4) and Visnjan Obs. (Jan. 23.11-14p4)

MPEC 2020-B92 - "01:08 UT" - 2020 BU3

K20B03U 2020 BU3 (risk listed, Q=4.584 AU, Earth MOID=4.4 LD, H=23.3 ~74m) was picked up at 0851 UT on 22 Jan. by PS1, observing it at Jan. 19.41-42p2 and 22.37-40p3. This detection was confirmed by Visnjan Obs. (Jan. 22.89-90p3), Savelli Obs. (Jan. 22.92-94p2), and San Marcello Pistoiese Obs. (Jan. 22.99-01p3).

MPEC 2020-B91 - "01:05 UT" - 2020 BT3

K20B03T 2020 BT3 (small asteroid, H=25.6 ~26m) was picked up at 0906 UT on 21 Jan. by PS2, observing it at Jan. 21.38-42p4. This detection was confirmed by Schwarzschild Obs. (Jan. 21.93-94p3), St. Pardon de Conques Obs. (Jan. 21.98-99p2), Visnjan Obs. (Jan. 22.81-82p5), San Marcello Pistoiese Obs. (Jan. 22.94-96p3), and Savelli Obs. (Jan. 22.99p3).

MPEC 2020-B90 - "01:04 UT" - 2020 BS3

K20B03S 2020 BS3 (H=26.3 ~19m, NHATS) was picked up at 1201 UT on 19 Jan. by PS1, observing it at Jan. 19.50-54p3 at w=21.93-22.02 and 22.48-51p4 at w=21.67-22.47. This detection was confirmed by PS2 (Jan. 21.48-52p8 at G=21.4-23.0).

MPEC 2020-B89 - "01:02 UT" - 2020 BR3

K20B03R 2020 BR3 (H=20.7 ~245m) was picked up at 0750 UT on 19 Jan. by PS1, observing it at Jan. 19.33-36p4. This detection was confirmed by Mt. John Obs. (Jan. 19.48-50p3 & 20.50-52p4), MRO (Jan. 20.16-19p4), Holmes/CTIO (Jan. 21.15p3), and Visnjan Obs. (Jan. 22.83-85p3).

MPEC 2020-B88 - "01:00 UT" - 2020 BQ3

K20B03Q 2020 BQ3 (Q=5.412 AU, H=18.6 ~645m) was picked up at 0939 UT on 19 Jan. by MLS, observing it at Jan. 19.40-42p4. This detection was confirmed by MRO (Jan. 19.43-45p4), McDonald Obs. (Jan. 19.45-46p3), Steward Mt. Lemmon Sta. (Jan. 19.52-53p3), Visnjan Obs. (Jan. 20.13-18p4), and Schwarzschild Obs. (Jan. 21.00-01p3, 22.04-05p3 & 22.21-22p3).

Observers on 23 January '20

A total of 43 observers appear in today's MPECs.

Code	Observer / observatory
`U71`	AHS Obs., 1 in MPEC 2020-B94 -- 163373
`C97`	Al-Fulaij Obs., 14 in MPEC 2020-B94 -- 2020 BR, 2020 BE, 2014 NF64, 52768, 458732, 437316, 310442, 30825, 18172, 137925, 11405, 106538, 103067, 2059
`251`	Arecibo in Puerto Rico, 1 in radar -- 216258
`H21`	Astronomical Research Obs. Westfield in Illinois, 2 in MPECs 2020-B94 & 2020-B99 -- 2020 BF4, 2020 AS2
`T05`	ATLAS Haleakala in Hawaii, 29 in MPECs 2020-B94 & 2020-B98 -- 2020 BS1, 2020 BA4, 2019 WB6, 2015 XK351, 2015 HU116, 2007 BJ29, 96315, 90075, 54686, 512245, 512244, 492143, 458732, 36236, 35107, 338347, 329340, 311044, 310442, 243025, 203015, 137925, 11405, 106589, 106538, 5626, 4487, 3102, 2059
`T08`	ATLAS Mauna Loa in Hawaii, 22 in MPECs 2020-B94 & 2020-B98 -- 2020 BS1, 2020 BO1, 2020 BA4, 2019 XG1, 2019 TH6, 2017 AE5, 2012 BE124, 2008 YX32, 1996 AE2, 89830, 483878, 448818, 416591, 333555, 18172, 163696, 162080, 137199, 136993, 136795, 6455, 1866
`160`	Castelmartini Obs. in Italy, 15 in MPEC 2020-B94 -- 2020 BE, 2020 BB3, 2015 OX78, 2014 NF64, 99248, 458745, 437316, 427778, 416002, 310442, 30825, 243025, 214088, 137199, 106538
`703`	Catalina Sky Survey (CSS) in Arizona, 41 in MPECs 2020-B94 & 2020-B104 -- 2020 AD3, 2019 YE4, 2019 YD2, 2019 XL1, 2019 SH6, 2017 MX4, 2016 AX147, 2016 AJ193, 2015 OX78, 2014 AD17, 2011 CT4, 2008 OX1, 2004 BT58, 99248, 86326, 86067, 85628, 68350, 511684, 474223, 455322, 438452, 374188, 36284, 34613, 307070, 232368, 163373, 15745, 152931, 138846, 137924, 137084, 10145, 10115, 7088, 5693, 5626, 3752, 1864, 1627
`807\|`	Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 5 in MPECs 2020-B89, 2020-B94 & 2020-B99 -- 2020 BR3, 2020 BF4, 2019 YZ5, 2019 YW3, 2019 YG1
`106`	Crni Vrh Obs. in Slovenia, 1 in MPEC 2020-B94 -- 163373
`K87`	Dettelbach Vineyard Obs. in Germany, 5 in MPEC 2020-B94 -- 2020 BV, 2020 BR, 2020 BH1, 2020 BE, 2020 AO3
`W46`	Foxfire Village Obs., 2 in MPEC 2020-B94 -- 437316, 137199
`U76`	Glendora Obs., 3 in MPEC 2020-B94 -- 354030, 2100, 2059
`511`	Haute Provence Obs. in Germany, 1 in MPEC 2020-B94 -- 99942
`H06`	iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2020-B94 -- 437316
`246`	KLENOT in the Czech Republic, 6 in MPECs 2020-B94, 2020-B98 & 2020-B99 -- 2020 BT, 2020 BJ, 2020 BF4, 2020 BA4, 2020 AS2, 99942
`Z43`	Landehen Obs., 1 in MPEC 2020-B94 -- 163373
`W85`	LCO Cerro Tololo A in Chile, 1 in MPEC 2020-B98 -- 2020 BA4
`130`	Lumezzane Obs. in Italy, 16 in MPEC 2020-B94 -- 2020 BO, 2020 BE, 2020 AD3, 2019 XG1, 2019 UB11, 2018 BP, 2017 AE5, 2015 OX78, 2011 CT4, 516986, 455322, 438452, 416591, 374188, 307070, 20255
`H01`	Magdalena Ridge Obs. (MRO) in New Mexico, 3 in MPECs 2020-B88, 2020-B89 & 2020-B102 -- 2020 BR3, 2020 BQ3, 2020 BL4
`711`	McDonald Obs. in Texas, 1 in MPEC 2020-B88 -- 2020 BQ3
`474`	Mt. John Obs. in New Zealand, 2 in MPECs 2020-B89 & 2020-B98 -- 2020 BR3, 2020 BA4
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 44 in MPECs 2020-B88, 2020-B94, 2020-B95 & 2020-B102 -- 2020 BW2, 2020 BV, 2020 BU3, 2020 BT1, 2020 BQ3, 2020 BN1, 2020 BL4, 2020 BK1, 2020 AW1, 2020 AU2, 2020 AR2, 2020 AM1, 2019 TF7, 2019 SC9, 2018 BN3, 2015 OX78, 2015 DD200, 2014 YW34, 2014 QX390, 2014 DH23, 2013 PV2, 2011 UV63, 2011 ME5, 2010 DN1, 2008 AJ33, 2001 YM4, 96189, 86326, 53550, 528609, 456973, 427778, 416591, 386847, 386298, 358453, 343158, 329520, 174806, 155334, 6456, 6239, 4450, 1864
`K74`	Muensterschwarzach Obs. in Germany, 2 in MPEC 2020-B94 -- 250577, 137924
`F51`	Pan-STARRS 1 (PS1) in Hawaii, 58 in MPECs 2020-B89, 2020-B90, 2020-B92, 2020-B94, 2020-B96, 2020-B97, 2020-B99, 2020-B100, 2020-B101 & 2020-B103 -- 2020 BX3, 2020 BX2, 2020 BW2, 2020 BU3, 2020 BS3, 2020 BR3, 2020 BQ1, 2020 BO2, 2020 BK4, 2020 BJ4, 2020 BF4, 2020 AS2, 2020 AK, 2020 AJ, 2019 YL1, 2019 YA1, 2019 WU4, 2019 SF2, 2019 QF2, 2017 BF3, 2016 JG18, 2016 CJ195, 2016 AX147, 2016 AJ9, 2015 WH13, 2014 YU43, 2014 QP266, 2014 MM55, 2013 DU, 2013 CK89, 2011 CK50, 2009 NH, 2008 XP, 2008 OX1, 85713, 503880, 488490, 455322, 442609, 439898, 416591, 385268, 354101, 348400, 338292, 331769, 322652, 232368, 187040, 173561, 16816, 162452, 162082, 155334, 153958, 136582, 1916, 719
`F52`	Pan-STARRS 2 (PS2) in Hawaii, 41 in MPECs 2020-B90, 2020-B91, 2020-B93, 2020-B94, 2020-B96, 2020-B97, 2020-B100 & 2020-B103 -- 2020 BZ1, 2020 BX3, 2020 BT3, 2020 BS3, 2020 BJ4, 2019 YS4, 2019 YM3, 2019 YJ3, 2019 XL1, 2019 XG1, 2019 WR6, 2019 WR4, 2019 QR6, 2019 PR2, 2016 AJ9, 2011 UC292, 2011 CK50, 2011 AO52, 2010 UE7, 2010 CH55, 2008 AG1, 65674, 53426, 52768, 442243, 438452, 415267, 405562, 39796, 366733, 363814, 354876, 349219, 319988, 303174, 26760, 164221, 152679, 138325, 137925, 6239
`A48`	Povegliano Veronese Obs. in Italy, 1 in MPEC 2020-B94 -- 2020 BV
`247`	roving observer, 1 in MPEC 2020-B94 -- 18172
`L40`	Saarbruecken Rastpfuhl Obs., 2 in MPEC 2020-B94 -- 52768, 163373
`104`	San Marcello Pistoiese Obs. in Italy, 2 in MPECs 2020-B91 & 2020-B92 -- 2020 BU3, 2020 BT3
`C95`	SATINO-1 in France, 1 in MPEC 2020-B94 -- 2015 XK351
`K96`	Savelli Obs., 3 in MPECs 2020-B91, 2020-B92 & 2020-B94 -- 2020 BU3, 2020 BT3, 2020 BB3
`204`	Schiaparelli Obs. in Italy, 1 in MPEC 2020-B97 -- 2011 CK50
`033`	Schwarzschild Obs. in Germany, 5 in MPECs 2020-B88, 2020-B91, 2020-B94, 2020-B97 & 2020-B101 -- 2020 BT3, 2020 BQ3, 2020 BK4, 2020 AS2, 2011 CK50
`691`	Spacewatch 0.9m telescope in Arizona, 5 in MPECs 2020-B94, 2020-B95, 2020-B99 & 2020-B104 -- 2020 BY1, 2020 BF4, 2019 OA5, 2016 AJ193, 1916
`291`	Spacewatch 1.8m telescope in Arizona, 6 in MPECs 2020-B94, 2020-B96, 2020-B100 & 2020-B101 -- 2020 BX3, 2020 BK4, 2020 BJ4, 2020 BD1, 2020 BD, 2019 WO4
`I93`	St. Pardon de Conques Obs. in France, 1 in MPEC 2020-B91 -- 2020 BT3
`I52`	Steward Obs. Mt. Lemmon Station in Arizona, 11 in MPECs 2020-B88, 2020-B94 & 2020-B98 -- 2020 BY1, 2020 BU, 2020 BR, 2020 BQ3, 2020 BO2, 2020 BN, 2020 BJ, 2020 BD, 2020 BA4, 2020 BA1, 2015 DD200
`A16`	Tentlingen Obs. in Switzerland, 3 in MPEC 2020-B94 -- 137925, 106589, 6455
`T12`	UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 2 in MPEC 2020-B94 -- 2019 WV1, 2019 PM
`L01`	Visnjan Obs., 7 in MPECs 2020-B88, 2020-B89, 2020-B91, 2020-B92, 2020-B93, 2020-B97 & 2020-B99 -- 2020 BU3, 2020 BT3, 2020 BR3, 2020 BQ3, 2020 BF4, 2011 CK50, 2008 AG1
`G33`	Wickede Obs. in Germany, 1 in MPEC 2020-B94 -- 137199
`I41`	Zwicky Transient Facility in southern California, 1 in MPEC 2020-B95 -- 2020 BQ2

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

Impact Risk Monitoring on 23 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 BU3	JPL Sentry	2000	R E M O V E D						JPL #2 for the day: Risk listing removed at 1947 UTC today
2020 BU3	NEODyS	1640	2101	1	4.66e-11	-9.29	-9.29	0	NEODyS: "Based on 13 optical observations (of which 0 are rejected as outliers) from 2020-01-19.407 to 2020-01-23.013."

2020 BK3	NEODyS	1640	2090-2118	22	5.02e-04	-4.43	-4.58	0	NEODyS: "Based on 42 optical observations (of which 0 are rejected as outliers) from 2020-01-22.396 to 2020-01-22.939."
2020 BK3	JPL Sentry	0022	2091-2107	10	0.00040305755	-4.51	-4.62	0	JPL: Computed at 16:04 Jan. 22nd Pacific time based on 42 observations spanning .54321 days (2020-Jan-22.395303 to 2020-Jan-22.93851). Diameter approximately 0.014 km. from weighted mean H=26.89.

2020 BH3	NEODyS	1640	2059-2106	7	1.06e-06	-6.67	-7.07	0	NEODyS: "Based on 15 optical observations (of which 0 are rejected as outliers) from 2020-01-21.276 to 2020-01-22.740."
2020 BH3	JPL Sentry	0022	2059-2110	11	2.4097e-06	-6.30	-6.68	0	JPL: Computed at 16:01 Jan. 22nd Pacific time based on 15 observations spanning 1.4645 days (2020-Jan-21.274771 to 2020-Jan-22.739289). Diameter approximately 0.022 km. from weighted mean H=25.93.

2020 BY1	JPL Sentry	2000	2049-2057	3	5.947884e-06	-5.41	-5.41	0	JPL: Computed at 11:50 today Pacific time based on 43 observations spanning 2.8661 days (2020-Jan-20.460859 to 2020-Jan-23.32694). Diameter approximately 0.020 km. from weighted mean H=26.17.

2020 BD1	JPL Sentry	2000	R E M O V E D						JPL: Risk listing removed at 1952 UTC today

2019 WV1	JPL Sentry	1944	2078-2117	14	2.801846e-06	-7.41	-7.85	0	JPL: Computed at 11:34 today Pacific time based on 21 observations spanning 8.8051 days (2019-Nov-24.61277 to 2019-Dec-03.417857). Diameter approximately 0.008 km. from weighted mean H=28.20.

2008 VS4	JPL Sentry	0022	2021-2114	308	5.751628e-07	-5.56	-6.64	0	JPL: Computed at 00:23 April 8th of 2017 Pacific time based on 10 observations spanning .08330 days (2008-Nov-07.413 to 2008-Nov-07.4963). Diameter approximately 0.049 km. from weighted mean H=24.21.

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 23 January '20

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

2358	Grabbed MPEC 2020-B104 - 2016 AJ193 - see above
2225	Grabbed MPEC 2020-B103 - 2016 AJ9 - see above
2135	Generated Traffic Report
2000	Noted that JPL Sentry has removed 2020 BD1 as an impact risk - see above Noted that JPL Sentry has removed 2020 BU3 as an impact risk - see above Noted that JPL Sentry has updated its 2020 BY1 risk assessment - see above
1944	Noted that JPL Sentry has updated its 2019 WV1 risk assessment - see above
1730	Grabbed MPEC 2020-B100 - 2020 BJ4 - see above Grabbed MPEC 2020-B101 - 2020 BK4 - see above Grabbed MPEC 2020-B102 - 2020 BL4 - see above
1700	Grabbed MPEC 2020-B99 - 2020 BF4 - see above
1640	Noted that NEODyS has posted 2020 BH3 as an impact risk - see above Noted that NEODyS has posted 2020 BK3 as an impact risk - see above Noted that NEODyS has posted 2020 BU3 as an impact risk - see above Grabbed MPEC 2020-B93 - 2008 AG1 - see above Grabbed MPEC 2020-B94 - Daily Orbit Update - see above Grabbed MPEC 2020-B95 - Daily Orbit Update - see above Grabbed MPEC 2020-B96 - 2020 BX3 - see above Grabbed MPEC 2020-B97 - 2011 CK50 - see above Grabbed MPEC 2020-B98 - 2020 BA4 - see above
0231	Noted that JPL Sentry has posted 2020 BU3 as an impact risk - see above
0200	Grabbed MPEC 2020-B91 - 2020 BT3 - see above Grabbed MPEC 2020-B92 - 2020 BU3 - see above
0105	Grabbed MPEC 2020-B88 - 2020 BQ3 - see above Grabbed MPEC 2020-B89 - 2020 BR3 - see above Grabbed MPEC 2020-B90 - 2020 BS3 - see above Noted Radar Astrometry database update - see above
0022	Noted that JPL Sentry has updated its 2008 VS4 risk assessment - see above Noted that JPL Sentry has posted 2020 BH3 as an impact risk - see above Noted that JPL Sentry has posted 2020 BK3 as an impact risk - see above

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