2020-01-22 Tracking News

Contents on 22 January '20

Traffic Report -- sixteen objects
Radar Astrometry -- one object
IAU Minor Planet Center
- NEOCP Activity -- 100 listings
- New MPECs -- seventeen MPECs
Observers -- 44 observers
Impact Risk Monitoring -- three objects
Chronology

Asteroid/Comet Connection (A/CC) Resources:

Consolidated Risk Tables - the CRT page
Of 1078 risk-listed objects, 50 have had news in the last 31 days. Updated at 1700 UTC on 22 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 22 January '20

Sixteen objects reported inside ten LD

There are sixteen asteroids reported moving within ten lunar distances (LD) of Earth today. Nearest is risk-listed 2020 BB, which is inside our planet's gravitational sphere of influence and comes its closest to the Moon this time around -- 2.32 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
2.00 LD yesterday	2020 BB	6 m	2.01 to 2.25 LD	Jan. 9 - Feb. 2	NHATS target, Moon closest 2.32 LD at 0551 UTC, risk - DOU

2.56 LD tomorrow	2020 BB1	8 m	2.72 from 4.31 LD	Jan. 19 - 27	DOU
2.7 LD Jan. 14*	2020 BH	8 m	6.6 to 7.3 LD	Jan. 1 - 26	EPU +/- 5 mins.*, NHATS target, risk
2.99 LD Jan. 14	2020 BS	9 m	7.31 to 8.17 LD	Jan. 4 - 25	NHATS target - DOU
3.67 LD yesterday	2020 BP	25 m	3.82 to 6.06 LD	Jan. 19 - 24	DOU
3.71 LD Jan. 10	2019 YF4	13 m	8.22 to 8.77 LD	Dec. 27 - Jan. 25	NHATS target
3.82 LD yesterday	2020 BY	43 m	3.83 to 5.59 LD	Jan. 19 - 24	DOU

6.4 LD Jan. 19*	2020 BK	16 m	6.9 to 7.4 LD	Jan. 11 - 27	EPU +/- 12 mins.*, NHATS target
6.62 LD yesterday	2020 BS1	19 m	6.64 to 6.86 LD	Jan. 15 - 27	NHATS target - DOU
6.85 LD Jan. 16	2019 YD3	21 m	9.29 to 10.05 LD	Jan. 9 - 22	NHATS target, exits ten LD - DOU
7.7 LD Jan. 24*	2020 BF1	21 m	7.8 from 8.1 LD	Jan. 18 - 30	EPU +/- 20 mins.*, NHATS target, risk
8.23 LD Jan. 16	2020 AZ1	16 m	9.78 to 10.28 LD	Jan. 9 - 22	NHATS target, exits ten LD
8.30 LD Jan. 25	2020 AK3	21 m	9.04 from 9.77 LD	yesterday - Jan. 28	NHATS target - DOU
8.6 LD Jan. 15*	2020 BV2	9 m	10.0 to 10.4 LD	Jan. 9 - 22	NEW, EPU +/- 14 mins.*, exits ten LD - MPEC
9.08 LD Jan. 17	2020 AD1	19 m	9.96 to 10.40 LD	Jan. 13 - 22	NHATS target, exits ten LD
9.8 LD yesterday*	2020 BN	9 m	9.8 to 9.9 LD	Jan. 20 - 23	EPU +/- 25 mins.*
* EPU = Earth passage uncertainty

Approaching
Earth passage	I D	~Size	Distance today	Inside ten LD	Notes
3.69 LD Feb. 4	2013 BA74	27 m	20.60 from 22.27 LD	Jan. 29 - Feb. 9

This report was generated at 2220 UTC with the discovery of outbound 2020 BV2 (MPEC) and with follow-up in today's DOU MPEC for inbound objects 2020 AK3 and risk-listed 2020 BB1, six outbound objects: 2020 BS1, 2020 BY, 2020 BS, 2020 BP, 2019 YD3, and risk-listed 2020 BB, and three departed objects: 2019 YX1, 2019 YA1, and risk-listed 2020 BY1.

See also our "Earth's Busy Neighborhood," a new page still in development with more traffic info and quicker discovery reporting.

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. "LD*" indicates some uncertainty in object passage time and distance. See also current sky chart and object details (alt-details), ephemerides, and today's timeline.

Radar Astrometry on 22 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 2302 UTC when the database was dated 22 Jan.

2011 WN15 from Arecibo (Dec. 12.92 velocity, 12.93 range & 12.97 range)

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

NEOCP Activity on 22 January '20

The MPC's NEO Confirmation Page has 100 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 100 objects listed. Of these, 49 were "one nighters." So far The Tracking News has counted a total of 130 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 22 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-B71 time-stamped "01:24 UT" - 2020 BP2 - see below
MPEC 2020-B72 time-stamped "12:07 UT" - Daily Orbit Update - see below
MPEC 2020-B73 time-stamped "13:41 UT" - 2020 BQ2 - see below
MPEC 2020-B74 time-stamped "15:50 UT" - 2020 BR2 - see below
MPEC 2020-B75 time-stamped "15:55 UT" - 2020 BS2 - see below
MPEC 2020-B76 time-stamped "16:06 UT" - 2020 BT2 - see below
MPEC 2020-B77 time-stamped "16:12 UT" - 2020 BU2 - see below
MPEC 2020-B78 time-stamped "16:15 UT" - 2020 BV2 - see below
MPEC 2020-B79 time-stamped "16:18 UT" - 2020 BW2 - see below
MPEC 2020-B80 time-stamped "16:26 UT" - 2020 BX2 - see below
MPEC 2020-B81 time-stamped "19:37 UT" - 2020 BB3 - see below
MPEC 2020-B82 time-stamped "22:30 UT" - 2020 BG3 - see below
MPEC 2020-B83 time-stamped "22:33 UT" - 2020 BH3 - see below
MPEC 2020-B84 time-stamped "22:59 UT" - 2020 BJ3 - see below
MPEC 2020-B85 time-stamped "23:01 UT" - 2020 BK3 - see below
MPEC 2020-B86 time-stamped "23:06 UT" - 2020 BN3 - see below
MPEC 2020-B87 time-stamped "23:14 UT" - 2020 BO3

MPEC 2020-B87 - "23:14 UT" - 2020 BO3

K20B03O 2020 BO3 (small asteroid, H=23.2 ~78m) was picked up at 0642 UT on 21 Jan. by Pan-STARRS 2 (PS2), observing it at Jan. 21.28-32p4. This detection was confirmed by Schwarzschild Obs. (Jan. 21.80-81p4 at V=20.1-8 & 21.91p3 at V=22.1-5), KLENOT (Jan. 21.87-88p2), Astronomical Research Obs. Westfield (Jan. 22.06p2), and Visnjan Obs. (Jan. 22.79-80p3).

MPEC 2020-B86 - "23:06 UT" - 2020 BN3

K20B03N 2020 BN3 (small asteroid, q=0.382 AU, Q=4.624 AU, Earth MOID=0.3 LD, H=25.3 ~29m) was picked up at 0946 UT on 21 Jan. by PS2, observing it at Jan. 21.38-42p3 and 22.50-53p4. This detection was confirmed by Schwarzschild Obs. (Jan. 21.90p3 & 22.12p4), KLENOT (Jan. 21.99p6), ARO Westfield (Jan. 22.21p3), Savelli Obs. (Jan. 22.83-84p3), Visnjan Obs. (Jan. 22.86-88p6), and San Marcello Pistoiese Obs. (Jan. 22.91-92p2).

MPEC 2020-B85 - "23:01 UT" - 2020 BK3

K20B03K 2020 BK3 (small asteroid, Earth MOID=0.7 LD, H=27.0 ~13m) was picked up at 0936 UT on 22 Jan. by ATLAS Mauna Loa, observing it at Jan. 22.40-44p8, 22.53p5, and 22.64p5. This detection was confirmed by PS2 (Jan. 22.40-42p2), Pan-STARRS 1 (PS1) (Jan. 22.46p2), Visnjan Obs. (Jan. 22.77p6), San Marcello Pistoiese Obs. (Jan. 22.84p4), Savelli Obs. (Jan. 22.86-87p3), GiaGa Obs. (Jan. 22.87-89p3), and Farra d'Isonzo Obs. (Jan. 22.91-94p4).

MPEC 2020-B84 - "22:59 UT" - 2020 BJ3

K20B03J 2020 BJ3 (small asteroid, H=24.5 ~43m) was picked up at 0919 UT on 21 Jan. by PS2, observing it at Jan. 21.39-41p3. This detection was confirmed by Schwarzschild Obs. (Jan. 22.08p3), ARO Westfield (Jan. 22.17-18p3), Visnjan Obs. (Jan. 22.89p3), and San Marcello Pistoiese Obs. (Jan. 22.92-93p3).

MPEC 2020-B83 - "22:33 UT" - 2020 BH3

K20B03H 2020 BH3 (small asteroid, Earth MOID=1.6 LD, H=26.0 ~21m) was picked up at 0651 UT on 21 Jan. by PS1, observing it at Jan. 21.27-31p4. This detection was confirmed by Schwarzschild Obs. (Jan. 21.89p4), Squirrel Valley Obs. (Jan. 21.99-02p3), and Visnjan Obs. (Jan. 22.73-74p4).

MPEC 2020-B82 - "22:30 UT" - 2020 BG3

K20B03G 2020 BG3 (Q=4.136 AU, H=19.2 ~490m) was picked up at 0156 UT on 20 Jan. by the Mt. Lemmon Survey (MLS), observing it at Jan. 20.08-10p3. This detection was confirmed by PS1 (Jan. 19.21p1), Magdalena Ridge Obs. (MRO) (Jan. 20.12-15p4), Steward Obs. Mt. Lemmon Station (Jan. 20.15p4), Dettelbach Vineyard Obs. (Jan. 20.72-74p3 & 21.75-76p3), Visnjan Obs. (Jan. 20.74-75p4), Great Shefford Obs. (Jan. 20.78-79p3), Schwarzschild Obs. (Jan. 20.80p3 & 21.76-77p3), Schiaparelli Obs. (Jan. 20.86-88p3), Clixby Obs. (Jan. 20.86-87p3), Farpoint Obs. (Jan. 21.08-10p4), KLENOT (Jan. 21.73-74p8), Savelli Obs. (Jan. 22.80-81p3), and San Marcello Pistoiese Obs. (Jan. 22.89p3).

MPEC 2020-B81 - "19:37 UT" - 2020 BB3

K20B03B 2020 BB3 (small asteroid, Earth MOID=8.8 LD, H=22.4 ~112m) from PS1 (Jan. 20.29-31p3), ATLAS Haleakala (Jan. 21.34-39p9), ATLAS Mauna Loa (Jan. 21.39p4), KLENOT (Jan. 21.83-84p7), Farra d'Isonzo Obs. (Jan. 21.84-85p3), Great Shefford Obs. (Jan. 21.88-89p4), Visnjan Obs. (Jan. 21.88-89p3), Cordell-Lorenz Obs. (Jan. 22.11-13p3), ARO Westfield (Jan. 22.14p4), LCO Siding Spring A (Jan. 22.46p6), Arcadia Obs. (Jan. 22.48-50p3), and Faulkes Telescope South (Jan. 22.49-50p4)

MPEC 2020-B80 - "16:26 UT" - 2020 BX2

K20B02X 2020 BX2 (small asteroid, H=25.3 ~29m) was picked up at 0958 UT on 20 Jan. by PS1, observing it at Jan. 20.42-45p3. This detection was confirmed by Visnjan Obs. (Jan. 20.96-97p3), Schwarzschild Obs. (Jan. 20.97p3 & 21.99-01p3), and PS2 (Jan. 21.43-46p4).

MPEC 2020-B79 - "16:18 UT" - 2020 BW2

K20B02W 2020 BW2 (small asteroid, H=24.5 ~43m) was picked up at 0903 UT on 19 Jan. by PS1, observing it at Jan. 19.38-41p4 at w=21.66-22.20 and 21.38-40p3 at w=21.60-22.12. This detection was confirmed by Schwarzschild Obs. (Jan. 22.01-02p3).

MPEC 2020-B78 - "16:15 UT" - 2020 BV2

K20B02V 2020 BV2 (Earth MOID=8.5 LD, H=27.6 ~10m) was picked up at 1202 UT on 19 Jan. by PS1, observing it at Jan. 19.50-54p3. This detection was confirmed by PS2 (Jan. 21.49-53p3) and Schwarzschild Obs. (Jan. 21.97p3).

MPEC 2020-B77 - "16:12 UT" - 2020 BU2

K20B02U 2020 BU2 (small asteroid, H=24.3 ~47m) was picked up at 1050 UT on 19 Jan. by PS1, observing it at Jan. 19.45-49p4 and 21.60-62p3. This detection was confirmed by Schwarzschild Obs. (Jan. 21.98p3 at V=21.4-8 & 22.13p3 at V=21.5-22.2).

MPEC 2020-B76 - "16:06 UT" - 2020 BT2

K20B02T 2020 BT2 (small asteroid, H=23.6 ~65m) was picked up at 0548 UT on 20 Jan. by PS1, observing it at Jan. 20.24-26p3. This detection was confirmed by Visnjan Obs. (Jan. 20.75-77p4), Schwarzschild Obs. (Jan. 20.86-87p3), Robert Holmes via Cerro Tololo Inter-American Obs. (CTIO) (Jan. 21.10-11p3), and ARO Westfield (Jan. 22.10-11p3).

MPEC 2020-B75 - "15:55 UT" - 2020 BS2

K20B02S 2020 BS2 (Q=4.589 AU, H=20.3 ~295m) was picked up at 1452 UT on 19 Jan. by PS2, observing it at Jan. 19.62-65p7. This detection was confirmed by Schwarzschild Obs. (Jan. 20.99p4, 21.20p3, 21.98-99p4 & 22.20p3), Great Shefford Obs. (Jan. 21.05p3), Visnjan Obs. (Jan. 21.18p3), and Sandlot Obs. (Jan. 21.40-41p3).

MPEC 2020-B74 - "15:50 UT" - 2020 BR2

K20B02R 2020 BR2 (small asteroid, Earth MOID=8.1 LD, H=25.6 ~26m) was picked up at 1124 UT on 19 Jan. by PS2, observing it at Jan. 19.48-51p4. This detection was confirmed by PS1 (Jan. 21.43-47p4) and Schwarzschild Obs. (Jan. 22.03-04p4).

MPEC 2020-B73 - "13:41 UT" - 2020 BQ2

K20B02Q 2020 BQ2 (small asteroid, Q=4.579 AU, H=25.1 ~32m) was picked up at 0800 UT on 21 Jan. by ATLAS Mauna Loa, observing it at Jan. 21.33-36p4. This detection was confirmed by PS1 (Dec. 24.32-35p3 at G=22.3-5), Great Shefford Obs. (Jan. 21.87p4), St. Pardon de Conques Obs. (Jan. 21.93p3), KLENOT (Jan. 21.93-94p9), Dax Obs. (Jan. 21.97-98p3), Schwarzschild Obs. (Jan. 22.05p3), Squirrel Valley Obs. (Jan. 22.08-11p3), Cordell-Lorenz Obs. (Jan. 22.17-21p4), and ARO Westfield (Jan. 22.25p3).

<< DOU on 22 January '20 >> MPEC 2020-B72 - "12:07 UT" - Daily Orbit Update

Observations of risk-listed objects
K20B01Y 2020 BY1 (small asteroid, arc=1 day, H=26.1 ~20m, close passer) from KLENOT (Jan. 21.94p9)
K20B01B 2020 BB1 (close passer) from KLENOT (Jan. 22.04p3)
K20B00B 2020 BB (small asteroid, arc=4 days, H=28.6 ~6m, close passer, NHATS target) from KLENOT (Jan. 22.06-07p10)
Observations of recently (no longer) risk-listed objects
K19Y01X 2019 YX1 (small asteroid, arc=31 days, H=24.5 ~43m, close passer) from Marco Micheli via Cerro Paranal (Jan. 21.28p5 at G=23.2-24.4)
Observations of close-passing objects
K20B01S 2020 BS1 (arc=2 days, H=26.2 ~19m, NHATS target) from KLENOT (Jan. 22.00p10)
K20B00Y 2020 BY (arc=5 days, H=24.5 ~43m) from Farra d'Isonzo Obs. (Jan. 20.97p3)
K20B00S 2020 BS (arc=6 days, H=27.9 ~9m, NHATS target) from KLENOT (Jan. 22.04p8)
K20B00P 2020 BP (arc=3 days, H=25.7 ~25m) from Landehen Obs. (Jan. 19.90-96p5)
K20A03K 2020 AK3 (arc=8 days, H=26.1 ~20m, NHATS target) from KLENOT (Jan. 21.85p5)
K19Y03D 2019 YD3 (arc=28 days, H=25.9 ~22m, NHATS target) from PS2 (Jan. 21.55-57p3)
K19Y01A 2019 YA1 (arc=33 days, H=25.4 ~28m, NHATS target) from PS2 (Jan. 21.48-50p3 at w=21.34-22.42)
Observation campaigns (NHATS targets, radar support)
K20A03O 2020 AO3 (arc=8 days, H=24.6 ~41m, NHATS) from KLENOT (Jan. 21.94-95p10)
K13C88A 2013 CA88 (arc=2 opp, H=24.8 ~37m, NHATS) from SATINO-1 (Jan. 11.87-91p3)
K11UT2C 2011 UC292 (arc=2 opp, H=22.8 ~93m, NHATS) from PS2 (Jan. 21.38-41p4)
J0166 190166 2005 UP156 (radar) from PS2 (Jan. 21.59-63p3)
-- NHATS target table -- Planetary radar schedules: Arecibo & Goldstone
Observations of small (H>22.0) & smallish (21.7<H<=22.0) asteroids
K20B01U 2020 BU1 (Q=4.848 AU, arc=3 days, H=23.0 ~85m) from PS1 (Jan. 21.58-62p5)
K20B01Q 2020 BQ1 (arc=3 days, H=23.0 ~85m) from PS2 (Jan. 21.43-46p4)
K20B01O 2020 BO1 (arc=3 days, H=22.1 ~129m) from ATLAS Mauna Loa (Jan. 21.51-53p4) and KLENOT (Jan. 22.05p10)
K20B01J 2020 BJ1 (arc=3 days, H=24.2 ~49m) from Dettelbach Vineyard Obs. (Jan. 21.82p3) and KLENOT (Jan. 21.82p8)
K20B01H 2020 BH1 (arc=3 days, H=24.6 ~41m) from KLENOT (Jan. 21.84p5)
K20B00V 2020 BV (arc=24 days, H=22.6 ~102m) from Clixby Obs. (Jan. 21.82p3) and KLENOT (Jan. 21.83p9)
K20B00R 2020 BR (q=0.311 AU, arc=4 days, H=22.8 ~93m) from KLENOT (Jan. 21.93p9)
K19Y04P 2019 YP4 (arc=24 days, H=22.5 ~107m) from PS1 (Jan. 21.58-62p4)
K19X01N 2019 XN1 (arc=4 opp, H=22.1 ~129m) from ATLAS Mauna Loa (Jan. 21.50-53p4)
K19T01Z 2019 TZ1 (arc=135 days, H=23.9 ~56m) from PS2 (Jan. 21.38-41p3)
K19S07V 2019 SV7 (Q=4.658 AU, arc=137 days, H=22.2 ~123m) from PS2 (Jan. 21.60-63p3)
K19Q02F 2019 QF2 (arc=176 days, H=22.7 ~98m) from PS2 (Jan. 21.44-47p4)
K08T10P 2008 TP10 (arc=2 opp, H=22.5 ~107m) from PS1 (Jan. 1.56-60p3 at w=22.1-3)
K04B58T 2004 BT58 (arc=3 opp, H=22.1 ~129m) from Schwarzschild Obs. (Jan. 21.86p3)
K20B00E 2020 BE (i=47.7°, arc=4 days, H=21.8 ~148m) from Foxfire Village Obs. (Jan. 21.00-01p3), Clixby Obs. (Jan. 21.80p3), and KLENOT (Jan. 21.84p8)
K19Y04G 2019 YG4 (arc=53 days, H=21.8 ~148m) from PS1 (Jan. 19.38-41p4 at w=21.9-22.1 & 21.37-42p4 at w=21.86-22.09)
K19O03A 2019 OA3 (arc=179 days, H=21.9 ~141m) from PS1 (Jan. 21.44-47p4)
Observations of other objects
K20A03D 2020 AD3 (arc=15 days, H=21.6 ~162m) from ATLAS Mauna Loa (Jan. 21.33-36p4), Oberfrauendorf Obs. (Jan. 21.88-89p4), and KLENOT (Jan. 21.95-96p10)
K19Y05X 2019 YX5 (Q=4.246 AU, arc=28 days, H=21.1 ~204m) from PS1 (Jan. 21.50-54p4)
K19Y02D 2019 YD2 (arc=2 opp, H=21.7 ~155m) from ATLAS Mauna Loa (Jan. 21.59-61p4)
K19W06B 2019 WB6 (arc=57 days, H=20.5 ~269m) from PS2 (Jan. 21.49-52p3)
K19S06H 2019 SH6 (arc=2 opp, H=20.0 ~339m) from ATLAS Mauna Loa (Jan. 21.52-54p4) and PS2 (Jan. 21.55-58p4)
K19S01H 2019 SH1 (arc=3 opp, H=18.2 ~776m) from ATLAS Mauna Loa (Jan. 21.26-28p4)
K19O05A 2019 OA5 (Q=4.233 AU, arc=179 days, H=18.9 ~562m) from PS2 (Jan. 21.23-26p4)
K19B01O 2019 BO1 (arc=2 opp, H=19.6 ~407m) from Schwarzschild Obs. (Jan. 21.86-87p3)
K18T06C 2018 TC6 (arc=2 opp, H=19.8 ~371m) from MLS (2018 Sept. 9.37-39p4 & Jan. 5.33-34p3)
K17V01W 2017 VW1 (arc=31 days, H=20.5 ~269m) from the Spacewatch 1.8m telescope (Jan. 18.28-31p2 at R=23.7)
K17S20W 2017 SW20 (arc=2 opp, H=19.5 ~426m) from MLS (Jan. 3.31-32p3)
K17M04X 2017 MX4 (arc=4 opp, H=20.8 ~234m) from PS1 (Jan. 21.49-53p4) and ATLAS Mauna Loa (Jan. 21.56-58p4)
K17B03F 2017 BF3 (arc=3 opp, H=20.8 ~234m) from PS1 (Jan. 21.43-46p4 at w=21.3-22.5)
K16X23O 2016 XO23 (arc=5 opp, H=20.8 ~234m) from ATLAS Haleakala (Jan. 21.30-32p4)
K16W01E 2016 WE1 (arc=3 opp, H=19.4 ~446m) from Schwarzschild Obs. (Jan. 21.86p3)
K16L09E 2016 LE9 (arc=6 opp, H=17.8 ~933m) from ATLAS Haleakala (Jan. 21.59-60p4)
K16AE7X 2016 AX147 (arc=4 opp, H=17.7 ~977m) from PS2 (Jan. 21.43-46p4) and ATLAS Mauna Loa (Jan. 21.45-48p4)
K16AD0R 2016 AR130 (i=55.9°, arc=4 opp, H=20.4 ~282m) from PS2 (Jan. 21.30-32p3 at w=21.9-22.1)
K15XZ1K 2015 XK351 (arc=4 opp, H=20.3 ~295m) from ATLAS Haleakala (Jan. 21.35-37p4)
K15O78X 2015 OX78 (i=40.4°, arc=3 opp, H=20.0 ~339m) from Foxfire Village Obs. (Jan. 20.05p3) and ATLAS Mauna Loa (Jan. 21.34-36p4 & 21.50-52p4)
K14Y43V 2014 YV43 (Q=5.170 AU, arc=3 opp, H=18.1 ~812m) from PS1 (Jan. 21.44-47p4) and PS2 (Jan. 21.50-53p3)
K14Y43U 2014 YU43 (arc=3 opp, H=19.7 ~389m) from PS1 (Jan. 21.38-41p2)
K14Y34W 2014 YW34 (arc=3 opp, H=21.7 ~155m) from PS1 (Jan. 21.37-41p4)
K14N64F 2014 NF64 (Q=4.904 AU, arc=5 opp, H=18.2 ~776m) from ATLAS Mauna Loa (Jan. 21.36-38p3)
K14M55M 2014 MM55 (Q=4.242 AU, arc=4 opp, H=18.8 ~589m) from PS2 (Jan. 21.43-46p3 at w=22.1-3)
K13CC8N 2013 CN128 (arc=4 opp, H=19.9 ~355m) from PS2 (Jan. 21.64-66p3)
K12TD9O 2012 TO139 (q=0.272 AU, Q=4.605 AU, arc=5 opp, H=19.8 ~371m) from KLENOT (Jan. 21.79p9) and PS2 (Jan. 22.24-27p3)
K11C04T 2011 CT4 (arc=3 opp, H=20.7 ~245m) from PS2 (Jan. 21.44-47p2), ATLAS Mauna Loa (Jan. 21.61-63p4), JAXA Space Tracking & Communications Center (JAXA STCC) (Jan. 21.68-69p3), and Schwarzschild Obs. (Jan. 21.86p3)
K10R82N 2010 RN82 (Q=4.108 AU, arc=3 opp, H=18.9 ~562m) from PS1 (Jan. 21.43-47p3 at w=22.3-6)
K09N00H 2009 NH (arc=3 opp, H=18.7 ~616m) from PS2 (Jan. 21.43-47p4 at w=21.8-22.1)
K09F04U 2009 FU4 (arc=4 opp, H=17.8 ~933m) from PS1 (Jan. 21.50-54p4 at w=22.0-22.2)
K06K86Y 2006 KY86 (arc=4 opp, H=19.8 ~371m) from ATLAS Haleakala (Jan. 21.35-37p4)
K05S00Q 2005 SQ (arc=4 opp, H=20.0 ~339m) from PS2 (Jan. 21.44-47p3) and PS1 (Jan. 21.58-61p3)
K04M00D 2004 MD (arc=5 opp, H=20.1 ~323m) from ATLAS Mauna Loa (Jan. 21.59-61p4)
K03O03C 2003 OC3 (arc=2 opp, H=18.8 ~589m) from Arcadia Obs. (Jan. 21.48-50p3) and Steven M. Tilley via iTelescope Obs. Siding Spring (Jan. 21.52-56p4)
J96A02E 1996 AE2 (i=37.4°, arc=4 opp, H=20.3 ~295m) from ATLAS Mauna Loa (Jan. 21.59-61p4)
q5364 525364 2005 CL7 from ATLAS Haleakala (Jan. 21.36-37p3)
p6986 516986 2012 QP10 from PS2 (Jan. 21.33-37p16)
p1684 511684 2015 BN509 from ATLAS Mauna Loa (Jan. 21.40-43p4)
p1523 511523 2014 QS439 from ATLAS Mauna Loa (Jan. 21.43-45p4)
m8490 488490 2000 AF205 from PS1 (Jan. 21.43-46p6)
l4223 474223 2001 CC32 from PS1 (Jan. 21.49-53p4)
l0951 470951 2009 LS from ATLAS Haleakala (Jan. 21.25-27p4)
k3282 463282 2012 HR15 from ATLAS Mauna Loa (Jan. 21.51-53p4)
k3216 463216 2012 DU30 from PS1 (Jan. 21.34-36p3)
j8745 458745 2011 QY37 from ATLAS Mauna Loa (Jan. 21.39-41p4)
j8732 458732 2011 MD5 from ATLAS Haleakala (Jan. 21.35-37p4)
j8062 458062 2009 YO from PS2 (Jan. 21.33-37p6)
j6973 456973 2008 BS2 from PS1 (Jan. 21.38-41p3)
j5322 455322 2002 NX18 from PS2 (Jan. 21.43-46p4) and ATLAS Mauna Loa (Jan. 21.45-48p4)
j0160 450160 2000 RM12 from ATLAS Haleakala (Jan. 21.61-63p4)
i4628 444628 2006 WQ1 from PS1 (Jan. 21.49-54p4 at w=21.7-22.1)
h8452 438452 2007 AS12 from PS2 (Jan. 21.38-42p4) and ATLAS Mauna Loa (Jan. 21.44-46p4)
h7316 437316 2013 OS3 from MPC code U71 (Jan. 7.18-24p9, 14.19-20p2, 16.14-20p4 & 18.14-21p15), Eden Obs. (Jan. 18.80-86p7), ATLAS Mauna Loa (Jan. 21.38-40p4), and Wickede Obs. (Jan. 21.80-81p15)
g7778 427778 2005 BE from ATLAS Mauna Loa (Jan. 21.43-46p3)
d1275 391275 2006 SJ134 from ATLAS Haleakala (Jan. 21.32-34p4)
c5497 385497 2004 DD from PS1 (Jan. 21.49-53p4)
b4188 374188 2005 AD3 from PS2 (Jan. 21.38-42p4) and ATLAS Mauna Loa (Jan. 21.44-46p4)
a3831 363831 2005 PY16 from PS2 (Jan. 21.38-42p4)
Z4876 354876 2006 BG55 from PS2 (Jan. 21.39-42p4)
Y9219 349219 2007 SV11 from PS2 (Jan. 21.39-41p3)
Y9063 349063 2006 XA from ATLAS Haleakala (Jan. 21.46-50p4)
X8347 338347 2002 XG4 from PS2 (Jan. 22.23-26p3)
X3555 333555 2005 VY17 from MPC code U71 (Jan. 7.17-23p8)
U7070 307070 2002 AV31 from ATLAS Mauna Loa (Jan. 21.45-48p4)
R6397 276397 2002 XA40 from ATLAS Mauna Loa (Jan. 21.43-46p4)
N5086 235086 2003 HW11 from PS2 (Jan. 21.44-46p3)
N2368 232368 2003 AZ2 from PS2 (Jan. 21.43-46p4) and ATLAS Mauna Loa (Jan. 21.45-49p8)
M8368 228368 2000 WK10 from PS2 (Jan. 21.55-58p3)
L4088 214088 2004 JN13 from ATLAS Mauna Loa (Jan. 21.42-45p3)
I5702 185702 1998 HK3 from PS1 (Jan. 21.63-64p3)
H5189 175189 2005 EC224 from PS2 (Jan. 21.59-63p7)
G4221 164221 2004 QE20 from PS2 (Jan. 21.38-42p4)
G3373 163373 2002 PZ39 from program code 1 via Kuban State Univ. Obs. (Jan. 19.80-82p3 & 19.92-93p2), Tentlingen Obs. (Jan. 21.05-09p4), and ATLAS Mauna Loa (Jan. 21.44-46p4)
G3081 163081 2002 AG29 from PS2 (Jan. 22.25-27p3)
G2825 162825 2001 BO61 from ATLAS Haleakala (Jan. 21.46-50p4)
G2452 162452 2000 HO14 from PS1 (Jan. 21.43-45p6 at w=22.1-3)
F5334 155334 2006 DZ169 from PS1 (Jan. 21.38-42p4)
F4029 154029 2002 CY46 from PS1 (Jan. 21.50-54p4)
F3958 153958 2002 AM31 from PS2 (Jan. 21.44-47p3)
F2679 152679 1998 KU2 from PS2 (Jan. 21.38-41p4)
E3947 143947 2003 YQ117 from ATLAS Haleakala (Jan. 21.44-47p4)
E3527 143527 2003 EN16 from ATLAS Haleakala (Jan. 21.43-46p4)
D8846 138846 2000 VJ61 from ATLAS Mauna Loa (Jan. 21.25-28p4)
D7925 137925 2000 BJ19 from ATLAS Haleakala (Jan. 21.35-38p4)
D7924 137924 2000 BD19 from ATLAS Mauna Loa (Jan. 21.51-53p4)
D6582 136582 1992 BA from PS1 (Jan. 21.43-46p8)
A3067 103067 1999 XA143 from PS1 (Jan. 21.37-42p3) and ATLAS Mauna Loa (Jan. 21.43-45p4)
99248 99248 2001 KY66 from Tentlingen Obs. (Jan. 20.86-90p5) and ATLAS Mauna Loa (Jan. 21.30-32p4)
90075 90075 2002 VU94 from PS2 (Jan. 21.48-52p4)
86666 86666 2000 FL10 from the Catalina Sky Survey (CSS) (2000 March 30.18-24p4)
86326 86326 1999 WK13 from ATLAS Mauna Loa (Jan. 21.23-26p8)
85628 85628 1998 KV2 from ATLAS Mauna Loa (Jan. 21.52-54p4)
68548 68548 2001 XR31 from PS2 (Jan. 21.39-46p7)
66008 66008 1998 QH2 from ATLAS Haleakala (Jan. 21.62-64p4)
65690 65690 1991 DG from ATLAS Haleakala (Jan. 21.56-58p4)
52768 52768 1998 OR2 from MPC code U71 (Jan. 19.17-26p12) and ATLAS Mauna Loa (Jan. 21.43-45p4)
36284 36284 2000 DM8 from ATLAS Mauna Loa (Jan. 21.59-61p4)
34613 34613 2000 UR13 from ATLAS Mauna Loa (Jan. 21.40-43p4)
25916 25916 2001 CP44 from ATLAS Mauna Loa (Jan. 21.35-38p4)
20826 20826 2000 UV13 from ATLAS Haleakala (Jan. 21.67p3)
11405 11405 1999 CV3 from Tentlingen Obs. (Jan. 20.92-95p6) and ATLAS Haleakala (Jan. 21.41-42p3)
10145 10145 1994 CK1 from ATLAS Mauna Loa (Jan. 21.45-48p4)
08566 8566 1996 EN from ATLAS Haleakala (Jan. 21.56-58p4)
06456 6456 Golombek (1992 OM) from Tentlingen Obs. (Jan. 21.01p1)
06455 6455 1992 HE from Tentlingen Obs. (Jan. 20.76-80p3)
06239 6239 Minos (1989 QF) from ATLAS Mauna Loa (Jan. 21.28-31p4)
05626 5626 1991 FE from PS2 (Jan. 21.43-46p3)
05131 5131 1990 BG from ATLAS Haleakala (Jan. 21.30-32p4)
04954 4954 Eric (1990 SQ) from ATLAS Haleakala (Jan. 21.64-66p8)
03752 3752 Camillo (1985 PA) from ATLAS Mauna Loa (Jan. 21.62-64p4)
03691 3691 Bede (1982 FT) from ATLAS Haleakala (Jan. 21.62-64p4)
01916 1916 Boreas (1953 RA) from PS1 (Jan. 21.37-42p3)
01864 1864 Daedalus (1971 FA) from ATLAS Mauna Loa (Jan. 21.57-59p4)
01627 1627 Ivar (1929 SH) from PS2 (Jan. 21.44-47p3) and ATLAS Mauna Loa (Jan. 21.46-49p4)
00719 719 Albert (1911 MT) from PS1 (Jan. 21.43-46p8)

MPEC 2020-B71 - "01:24 UT" - 2020 BP2

K20B02P 2020 BP2 (H=20.3 ~295m) was picked up at 0653 UT on 20 Jan. by PS2, observing it at Jan. 20.29-32p4. This detection was confirmed by PS1 (2019 June 12.57-60p4 at G=22.1-8, 2019 June 15.55p1 at G=24.1, 2019 July 4.46-50p4 at G=21.9-22.2, 2019 July 6.47-50p4 at w=21.8-22.0, Dec. 29.25-26p2 at G=20.56-67 & Jan. 21.29p1 at G=21.3), Schwarzschild Obs. (Jan. 20.91-93p4, 21.77-78p3 & 21.88p3), Holmes/CTIO (Jan. 21.12p3), KLENOT (Jan. 21.87p5), and ARO Westfield (Jan. 22.02-04p3).

Observers on 22 January '20

A total of 44 observers appear in today's MPECs.

Code	Observer / observatory
`E23`	Arcadia Obs. in New South Wales, 2 in MPECs 2020-B72 & 2020-B81 -- 2020 BB3, 2003 OC3
`251`	Arecibo in Puerto Rico, 1 in radar -- 2011 WN15
`H21`	Astronomical Research Obs. Westfield in Illinois, 7 in MPECs 2020-B71, 2020-B73, 2020-B76, 2020-B81, 2020-B84, 2020-B86 & 2020-B87 -- 2020 BT2, 2020 BQ2, 2020 BP2, 2020 BO3, 2020 BN3, 2020 BJ3, 2020 BB3
`T05`	ATLAS Haleakala in Hawaii, 23 in MPECs 2020-B72 & 2020-B81 -- 2020 BB3, 2016 XO23, 2016 LE9, 2015 XK351, 2006 KY86, 66008, 65690, 525364, 470951, 458732, 450160, 391275, 349063, 20826, 162825, 143947, 143527, 137925, 11405, 8566, 5131, 4954, 3691
`T08`	ATLAS Mauna Loa in Hawaii, 45 in MPECs 2020-B72, 2020-B73, 2020-B81 & 2020-B85 -- 2020 BQ2, 2020 BO1, 2020 BK3, 2020 BB3, 2020 AD3, 2019 YD2, 2019 XN1, 2019 SH6, 2019 SH1, 2017 MX4, 2016 AX147, 2015 OX78, 2014 NF64, 2011 CT4, 2004 MD, 1996 AE2, 99248, 86326, 85628, 52768, 511684, 511523, 463282, 458745, 455322, 438452, 437316, 427778, 374188, 36284, 34613, 307070, 276397, 25916, 232368, 214088, 163373, 138846, 137924, 103067, 10145, 6239, 3752, 1864, 1627
`703`	Catalina Sky Survey in Arizona, 1 in MPEC 2020-B72 -- 86666
`309&`	Marco Micheli via Cerro Paranal in Chile, 1 in MPEC 2020-B72 -- 2019 YX1
`807\|`	Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 2 in MPECs 2020-B71 & 2020-B76 -- 2020 BT2, 2020 BP2
`Z99`	Clixby Obs. in England, 3 in MPECs 2020-B72 & 2020-B82 -- 2020 BV, 2020 BG3, 2020 BE
`850`	Cordell-Lorenz Obs. in Tennessee, 2 in MPECs 2020-B73 & 2020-B81 -- 2020 BQ2, 2020 BB3
`958`	Dax Obs. in France, 1 in MPEC 2020-B73 -- 2020 BQ2
`K87`	Dettelbach Vineyard Obs. in Germany, 2 in MPECs 2020-B72 & 2020-B82 -- 2020 BJ1, 2020 BG3
`K05`	Eden Obs., 1 in MPEC 2020-B72 -- 437316
`734`	Farpoint Obs. in Kansas, 1 in MPEC 2020-B82 -- 2020 BG3
`595`	Farra d'Isonzo Obs. in Italy, 3 in MPECs 2020-B72, 2020-B81 & 2020-B85 -- 2020 BY, 2020 BK3, 2020 BB3
`E10`	Faulkes Telescope South in New South Wales, 1 in MPEC 2020-B81 -- 2020 BB3
`W46`	Foxfire Village Obs., 2 in MPEC 2020-B72 -- 2020 BE, 2015 OX78
`203`	GiaGa Obs. in Italy, 1 in MPEC 2020-B85 -- 2020 BK3
`J95`	Great Shefford Obs. in England, 4 in MPECs 2020-B73, 2020-B75, 2020-B81 & 2020-B82 -- 2020 BS2, 2020 BQ2, 2020 BG3, 2020 BB3
Q62`	Steven M. Tilley in Louisiana via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-B72 -- 2003 OC3
`P93`	JAXA Space Tracking & Communications Center in Japan, 1 in MPEC 2020-B72 -- 2011 CT4
`246`	KLENOT in the Czech Republic, 21 in MPECs 2020-B71, 2020-B72, 2020-B73, 2020-B81, 2020-B82, 2020-B86 & 2020-B87 -- 2020 BY1, 2020 BV, 2020 BS1, 2020 BS, 2020 BR, 2020 BQ2, 2020 BP2, 2020 BO3, 2020 BO1, 2020 BN3, 2020 BJ1, 2020 BH1, 2020 BG3, 2020 BE, 2020 BB3, 2020 BB1, 2020 BB, 2020 AO3, 2020 AK3, 2020 AD3, 2012 TO139
`C401`	program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-B72 -- 163373
`Z43`	Landehen Obs., 1 in MPEC 2020-B72 -- 2020 BP
`Q63`	LCO Siding Spring A in New South Wales, 1 in MPEC 2020-B81 -- 2020 BB3
`H01`	Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2020-B82 -- 2020 BG3
`U71`	MPC code U71, 3 in MPEC 2020-B72 -- 52768, 437316, 333555
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 3 in MPECs 2020-B72 & 2020-B82 -- 2020 BG3, 2018 TC6, 2017 SW20
`G34`	Oberfrauendorf Obs. in Germany, 1 in MPEC 2020-B72 -- 2020 AD3
`F51`	Pan-STARRS 1 (PS1) in Hawaii, 40 in MPECs 2020-B71, 2020-B72, 2020-B73, 2020-B74, 2020-B76, 2020-B77, 2020-B78, 2020-B79, 2020-B80, 2020-B81, 2020-B82, 2020-B83 & 2020-B85 -- 2020 BX2, 2020 BW2, 2020 BV2, 2020 BU2, 2020 BU1, 2020 BT2, 2020 BR2, 2020 BQ2, 2020 BP2, 2020 BK3, 2020 BH3, 2020 BG3, 2020 BB3, 2019 YX5, 2019 YP4, 2019 YG4, 2019 OA3, 2017 MX4, 2017 BF3, 2014 YW34, 2014 YV43, 2014 YU43, 2010 RN82, 2009 FU4, 2008 TP10, 2005 SQ, 488490, 474223, 463216, 456973, 444628, 385497, 185702, 162452, 155334, 154029, 136582, 103067, 1916, 719
`F52`	Pan-STARRS 2 (PS2) in Hawaii, 50 in MPECs 2020-B71, 2020-B72, 2020-B74, 2020-B75, 2020-B78, 2020-B80, 2020-B84, 2020-B85, 2020-B86 & 2020-B87 -- 2020 BX2, 2020 BV2, 2020 BS2, 2020 BR2, 2020 BQ1, 2020 BP2, 2020 BO3, 2020 BN3, 2020 BK3, 2020 BJ3, 2019 YD3, 2019 YA1, 2019 WB6, 2019 TZ1, 2019 SV7, 2019 SH6, 2019 QF2, 2019 OA5, 2016 AX147, 2016 AR130, 2014 YV43, 2014 MM55, 2013 CN128, 2012 TO139, 2011 UC292, 2011 CT4, 2009 NH, 2005 SQ, 90075, 68548, 516986, 458062, 455322, 438452, 374188, 363831, 354876, 349219, 338347, 235086, 232368, 228368, 190166, 175189, 164221, 163081, 153958, 152679, 5626, 1627
`104`	San Marcello Pistoiese Obs. in Italy, 4 in MPECs 2020-B82, 2020-B84, 2020-B85 & 2020-B86 -- 2020 BN3, 2020 BK3, 2020 BJ3, 2020 BG3
`H36`	Sandlot Obs. in Kansas, 1 in MPEC 2020-B75 -- 2020 BS2
`C95`	SATINO-1 in France, 1 in MPEC 2020-B72 -- 2013 CA88
`K96`	Savelli Obs., 3 in MPECs 2020-B82, 2020-B85 & 2020-B86 -- 2020 BN3, 2020 BK3, 2020 BG3
`204`	Schiaparelli Obs. in Italy, 1 in MPEC 2020-B82 -- 2020 BG3
`033`	Schwarzschild Obs. in Germany, 18 in MPECs 2020-B71, 2020-B72, 2020-B73, 2020-B74, 2020-B75, 2020-B76, 2020-B77, 2020-B78, 2020-B79, 2020-B80, 2020-B82, 2020-B83, 2020-B84, 2020-B86 & 2020-B87 -- 2020 BX2, 2020 BW2, 2020 BV2, 2020 BU2, 2020 BT2, 2020 BS2, 2020 BR2, 2020 BQ2, 2020 BP2, 2020 BO3, 2020 BN3, 2020 BJ3, 2020 BH3, 2020 BG3, 2019 BO1, 2016 WE1, 2011 CT4, 2004 BT58
`291`	Spacewatch 1.8m telescope in Arizona, 1 in MPEC 2020-B72 -- 2017 VW1
`W34`	Squirrel Valley Obs. in North Carolina, 2 in MPECs 2020-B73 & 2020-B83 -- 2020 BQ2, 2020 BH3
`I93`	St. Pardon de Conques Obs. in France, 1 in MPEC 2020-B73 -- 2020 BQ2
`I52`	Steward Obs. Mt. Lemmon Station in Arizona, 1 in MPEC 2020-B82 -- 2020 BG3
`A16`	Tentlingen Obs. in Switzerland, 5 in MPEC 2020-B72 -- 99248, 163373, 11405, 6456, 6455
`L01`	Visnjan Obs., 10 in MPECs 2020-B75, 2020-B76, 2020-B80, 2020-B81, 2020-B82, 2020-B83, 2020-B84, 2020-B85, 2020-B86 & 2020-B87 -- 2020 BX2, 2020 BT2, 2020 BS2, 2020 BO3, 2020 BN3, 2020 BK3, 2020 BJ3, 2020 BH3, 2020 BG3, 2020 BB3
`G33`	Wickede Obs. in Germany, 1 in MPEC 2020-B72 -- 437316

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

Impact Risk Monitoring on 22 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 BY1	JPL Sentry	1700	2049-2057	3	1.5374437e-05	-4.98	-4.98	0	JPL: Computed at 08:17 today Pacific time based on 37 observations spanning 1.4808 days (2020-Jan-20.460859 to 2020-Jan-21.94169). Diameter approximately 0.020 km. from weighted mean H=26.15.
2020 BY1	NEODyS	1700	2049	2	1.51e-05	-5.00	-5.0	0	NEODyS: "Based on 37 optical observations (of which 0 are rejected as outliers) from 2020-01-20.462 to 2020-01-21.942."

2020 BB1	NEODyS	1700	R E M O V E D						-

2020 BB	JPL Sentry	1700	2107-2107	1	2.733e-07	-8.76	-8.76	0	JPL: Computed at 08:09 today Pacific time based on 80 observations spanning 3.7774 days (2020-Jan-18.28892 to 2020-Jan-22.06637). Diameter approximately 0.006 km. from weighted mean H=28.59.
2020 BB	NEODyS	1700	2101-2115	4	1.88e-07	-8.97	-9.19	0	NEODyS: "Based on 80 optical observations (of which 1 are rejected as outliers) from 2020-01-18.290 to 2020-01-22.067."

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 22 January '20

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

2358	Grabbed MPEC 2020-B86 - 2020 BN3 - see above Grabbed MPEC 2020-B87 - 2020 BO3 - see above
2302	Grabbed MPEC 2020-B82 - 2020 BG3 - see above Grabbed MPEC 2020-B83 - 2020 BH3 - see above Grabbed MPEC 2020-B84 - 2020 BJ3 - see above Grabbed MPEC 2020-B85 - 2020 BK3 - see above Noted Radar Astrometry database update - see above
2220	Generated Traffic Report
2200	Grabbed MPEC 2020-B81 - 2020 BB3 - see above
1700	Noted that JPL Sentry has updated its 2020 BB risk assessment - see above Noted that NEODyS has updated its 2020 BB risk assessment - see above Noted that NEODyS has removed 2020 BB1 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 Grabbed MPEC 2020-B72 - Daily Orbit Update - see above Grabbed MPEC 2020-B73 - 2020 BQ2 - see above Grabbed MPEC 2020-B74 - 2020 BR2 - see above Grabbed MPEC 2020-B75 - 2020 BS2 - see above Grabbed MPEC 2020-B76 - 2020 BT2 - see above Grabbed MPEC 2020-B77 - 2020 BU2 - see above Grabbed MPEC 2020-B78 - 2020 BV2 - see above Grabbed MPEC 2020-B79 - 2020 BW2 - see above Grabbed MPEC 2020-B80 - 2020 BX2 - see above
0136	Grabbed MPEC 2020-B71 - 2020 BP2 - see above

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