2020-10-21 Tracking News

Contents on 21 October '20

IAU Minor Planet Center
- NEOCP Activity -- 59 listings
- New MPECs -- 24 MPECs
Observers -- 42 observers
Impact Risk Monitoring -- eighteen objects
Chronology

Asteroid/Comet Connection (A/CC) Resources:

Consolidated Risk Tables - the CRT page
Earth's Busy Neighborhood traffic 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.

NEOCP Activity on 21 October '20

The MPC's NEO Confirmation Page has 59 listings

When last checked at 2351 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 59 objects listed. Of these, 34 were "one nighters." The Tracking News counted a total of 92 listings on the NEOCP on this day.

New MPECs on 21 October '20

Minor Planet Electronic Circulars

There were 24 MPECs posted this day from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2020-U143 time-stamped "00:10 UT" - 2020 TV8 - see below
MPEC 2020-U144 time-stamped "00:12 UT" - 2020 UN2 - see below
MPEC 2020-U145 time-stamped "00:13 UT" - 2020 TW8 - see below
MPEC 2020-U146 time-stamped "00:14 UT" - 2020 UO2 - see below
MPEC 2020-U147 time-stamped "00:21 UT" - 2020 UQ2 - see below
MPEC 2020-U148 time-stamped "02:06 UT" - 2020 UR2 - see below
MPEC 2020-U149 time-stamped "03:40 UT" - 2020 US2 - see below
MPEC 2020-U150 time-stamped "03:41 UT" - 2020 UT2 - see below
MPEC 2020-U151 time-stamped "03:56 UT" - Comet P/2020 S6 (Leonard) - see below
MPEC 2020-U152 time-stamped "07:03 UT" - 2020 UU2 - see below
MPEC 2020-U153 time-stamped "07:40 UT" - 2017 UH5 - see below
MPEC 2020-U154 time-stamped "11:52 UT" - 2020 UV2 - see below
MPEC 2020-U155 time-stamped "11:53 UT" - 2020 UW2 - see below
MPEC 2020-U156 time-stamped "11:55 UT" - 2020 UX2 - see below
MPEC 2020-U157 time-stamped "11:56 UT" - 2020 UY2 - see below
MPEC 2020-U158 time-stamped "11:57 UT" - 2020 UZ2 - see below
MPEC 2020-U159 time-stamped "11:58 UT" - 2020 UA3 - see below
MPEC 2020-U160 time-stamped "12:46 UT" - Daily Orbit Update - see below
MPEC 2020-U161 time-stamped "22:32 UT" - 2020 UF3 - see below
MPEC 2020-U162 time-stamped "23:50 UT" - 2020 UJ3 - see below
MPEC 2020-U163 time-stamped "23:51 UT" - 2020 UK3 - see below
MPEC 2020-U164 time-stamped "23:55 UT" - 2020 UL3 - see below
MPEC 2020-U165 time-stamped "23:56 UT" - 2020 UM3 - see below
MPEC 2020-U166 time-stamped "23:58 UT" - 2020 UN3

MPEC 2020-U166 - "23:58 UT" - 2020 UN3

K20U03N 2020 UN3 (small asteroid, H=23.9 ~56m) was picked up at 0851 UT on 20 Oct. by the Mt. Lemmon Survey (MLS), observing it at Oct. 20.37-39p4. This detection was confirmed by Steward Obs. Mt. Lemmon Station (Oct. 20.49p4 & 21.34p4), Pan-STARRS 1 (PS1) (Oct. 20.49-53p4), Visnjan Obs. (Oct. 21.01p1 & 21.07-08p3), and program code 1 via KLENOT (Oct. 21.92-93p5).

MPEC 2020-U165 - "23:56 UT" - 2020 UM3

K20U03M 2020 UM3 (small asteroid, H=24.4 ~45m) was picked up at 0642 UT on 21 Oct. by MLS, observing it at Oct. 21.28-30p4. This detection was confirmed by PS1 (Oct. 17.43-45p2), Pan-STARRS 2 (PS2) (Oct. 20.42-45p4), Steward Mt. Lemmon Sta. (Oct. 21.41-42p4), and Visnjan Obs. (Oct. 21.88-89p4).

MPEC 2020-U164 - "23:55 UT" - 2020 UL3

K20U03L 2020 UL3 (small asteroid, Earth MOID=1.1 LD, H=23.3 ~74m) was picked up at 0923 UT on 20 Oct. by MLS, observing it at Oct. 20.39-41p4. This detection was confirmed by PS1 (Oct. 17.54-57p3 & 20.54-55p2), Jana Pittichova Chesley via Table Mtn. Obs. (Oct. 20.45-47p2), Steward Mt. Lemmon Sta. (Oct. 20.50-51p4 & 21.39-40p4), and Visnjan Obs. (Oct. 21.12p3).

MPEC 2020-U163 - "23:51 UT" - 2020 UK3

K20U03K 2020 UK3 (small asteroid, Earth MOID=2.1 LD, H=27.5 ~11m) was picked up at 0759 UT on 20 Oct. by PS1, observing it at Oct. 15.34-38p4 at G=21.53-22.16 and 20.33-37p4 at w=20.55-21.09. This detection was confirmed by Visnjan Obs. (Oct. 20.75-77p5), Tebbutt Obs. (Oct. 21.17-19p3), and Steward Mt. Lemmon Sta. (Oct. 21.19p4).

MPEC 2020-U162 - "23:50 UT" - 2020 UJ3

K20U03J 2020 UJ3 (small asteroid, Earth MOID=1.4 LD, H=27.1 ~13m) was picked up at 0432 UT on 20 Oct. by MLS, observing it at Oct. 20.19-21p4. This detection was confirmed by PS1 (Oct. 11.22-26p4 at G=22.01-90), Steward Mt. Lemmon Sta. (Oct. 20.25p4 & 21.10p3), and Visnjan Obs. (Oct. 20.73-74p5).

MPEC 2020-U161 - "22:32 UT" - 2020 UF3

K20U03F 2020 UF3 (small asteroid, Earth MOID=0.0 LD, H=28.34 ~7m) was picked up at 0900 UT on 21 Oct. by MLS, observing it at Oct. 21.38-39p3. This detection was confirmed by PS1 (Oct. 20.53p1 at G=22.20), Steward Mt. Lemmon Sta. (Oct. 21.47-48p4), and program code 1 via Zadko Obs. (Oct. 21.73-78p4).

<< DOU on 21 October '20 >> MPEC 2020-U160 - "12:46 UT" - Daily Orbit Update

Observations of risk-listed objects
K20U02K 2020 UK2 (small asteroid, arc=3 days, H=27.0 ~13m, close passer) from ROASTERR-1 (Oct. 20.76-79p4) and PS2 (Oct. 21.35-38p4)
K20U00J 2020 UJ (small asteroid, arc=11 days, H=24.1 ~51m) from Steward Mt. Lemmon Sta. (Oct. 21.14-15p4)
K20U00H 2020 UH (small asteroid, arc=6 days, H=24.4 ~45m) from Steward Mt. Lemmon Sta. (Oct. 21.10p4)
K20U00E 2020 UE (small asteroid, arc=6 days, H=25.6 ~26m, close passer) from Steward Mt. Lemmon Sta. (Oct. 21.13p4)
K20U00A 2020 UA (close passer, NHATS target) from M. Kumrucu-Lohmiller via Slooh.com Chile Obs. (Oct. 20.20-21p3) and program code 1 via Kuban State Univ. Obs. (Oct. 20.77-81p4, 20.87p1 & 20.92p1)
K20T08D 2020 TD8 (small asteroid, arc=6 days, H=27.0 ~13m, close passer, NHATS target) from Steward Mt. Lemmon Sta. (Oct. 21.14p4)
K20T06F 2020 TF6 (small asteroid, arc=4 days, H=27.6 ~10m, close passer) from program code 1 via ESA Test-Bed Telescope Cebreros (Oct. 18.89-91p3)
K20T05K 2020 TK5 (small asteroid, q=0.349 AU, arc=7 days, H=23.6 ~65m) from the Catalina Sky Survey (CSS) (Oct. 20.29-30p4), PS2 (Oct. 20.36-40p4), and Steward Mt. Lemmon Sta. (Oct. 21.19-20p4)
K20T04S 2020 TS4 (small asteroid, arc=7 days, H=27.9 ~9m, close passer, NHATS target) from Chelmsford Obs. (Oct. 14.94p3) and Steward Mt. Lemmon Sta. (Oct. 21.32p4)
K20T03J 2020 TJ3 (small asteroid, arc=10 days, H=24.6 ~41m, NHATS target) from Steward Mt. Lemmon Sta. (Oct. 21.15p3)
K20T01Y 2020 TY1 (small asteroid, arc=13 days, H=22.6 ~102m) from Steward Mt. Lemmon Sta. (Oct. 20.48-52p3 & 21.36-37p4)
K20T00W 2020 TW (small asteroid, arc=13 days, H=27.6 ~10m, close passer, NHATS target) from PS1 (Oct. 20.34-37p3 at w=22.20-37)
Observations of recently (no longer) risk-listed objects
K20T02X 2020 TX2 (Q=4.173 AU, arc=41 days, H=20.8 ~234m) from PS1 (Oct. 20.23-25p3)
Observations of close-passing objects
K20U02L 2020 UL2 (arc=3 days, H=28.8 ~6m) from Visnjan Obs. (Oct. 20.77-78p4)
K20U02E 2020 UE2 (arc=4 days, H=26.6 ~16m, NHATS target) from PS2 (Oct. 20.22-26p3)
K20U02A 2020 UA2 (arc=3 days, H=27.5 ~11m, NHATS target) from Steward Mt. Lemmon Sta. (Oct. 21.30p4)
K20U01A 2020 UA1 (arc=4 days, H=24.2 ~49m) from CSS (Oct. 20.19-21p4), Steward Mt. Lemmon Sta. (Oct. 21.13p4), and PS1 (Oct. 21.28-30p3)
K20U00V 2020 UV (arc=4 days, H=27.3 ~12m) from Steward Mt. Lemmon Sta. (Oct. 21.12p4)
K20U00S 2020 US (arc=5 days, H=27.2 ~12m) from Steward Mt. Lemmon Sta. (Oct. 21.10p4)
K20U00G 2020 UG (arc=5 days, H=26.7 ~15m) from Steward Mt. Lemmon Sta. (Oct. 21.14p2)
K20T06M 2020 TM6 (arc=10 days, H=26.1 ~20m, NHATS target) from Steward Mt. Lemmon Sta. (Oct. 21.31p4)
K20T05S 2020 TS5 (arc=10 days, H=26.1 ~20m, NHATS target) from Steward Mt. Lemmon Sta. (Oct. 21.16p4) and PS1 (Oct. 21.27-29p3)
K20T04K 2020 TK4 (arc=9 days, H=26.4 ~18m, NHATS target) from Buchloe Obs. (Oct. 19.85-86p3) and Steward Mt. Lemmon Sta. (Oct. 21.13p3)
K20T02W 2020 TW2 (arc=9 days, H=26.9 ~14m, NHATS target) from PS1 (Oct. 20.34-36p3)
K20T00R 2020 TR (arc=16 days, H=24.6 ~41m, NHATS target) from Steward Mt. Lemmon Sta. (Oct. 21.40-42p3)
m4402 484402 2007 XH16 from MLS (Oct. 20.48-50p3)
c8945 388945 2008 TZ3 from PS1 (Oct. 20.29-31p3)
Observation campaigns (NHATS targets, radar support)
K20U02S 2020 US2 (arc=2 days, H=23.7 ~62m, NHATS) from Pittichova/Table Mtn. (Oct. 21.13-15p2)
K20U02F 2020 UF2 (arc=3 days, H=21.7 ~155m, NHATS) from Steward Mt. Lemmon Sta. (Oct. 21.11-12p4)
K20U00K 2020 UK (arc=12 days, H=26.8 ~15m, NHATS) from Steward Mt. Lemmon Sta. (Oct. 21.16-17p4)
K20T01Z 2020 TZ1 (arc=13 days, H=24.2 ~49m, NHATS) from PS2 (Oct. 20.27-29p3) and Steward Mt. Lemmon Sta. (Oct. 21.20-21p4)
K20S06H 2020 SH6 (arc=24 days, H=24.7 ~39m, NHATS) from PS1 (Oct. 20.55-59p4)
K20R01G 2020 RG1 (arc=43 days, H=25.4 ~28m, NHATS) from PS1 (Oct. 20.49-53p3 at w=21.97-22.13)
K20Q04Z 2020 QZ4 (arc=62 days, H=25.5 ~27m, NHATS) from PS1 (Oct. 20.50-52p2)
K12U09S 2012 US9 (arc=3 opp, H=21.7 ~155m, NHATS) from Chabot Obs. (Oct. 21.15-16p3)
J0166 190166 2005 UP156 (radar) from MLS (Oct. 20.11-13p4)
03200 3200 Phaethon (1983 TB) (radar) from CSS (Oct. 20.45-47p4)
-- NHATS target table -- Planetary radar schedules: Arecibo & Goldstone
Observations of small (H>22.0) & smallish (21.7<H<=22.0) asteroids
K20U01Z 2020 UZ1 (i=46.0°, arc=4 days, H=22.5 ~107m) from Steward Mt. Lemmon Sta. (Oct. 21.22-23p4)
K20U01Y 2020 UY1 (arc=4 days, H=26.0 ~21m) from Steward Mt. Lemmon Sta. (Oct. 21.23-24p3)
K20U01T 2020 UT1 (arc=4 days, H=24.2 ~49m) from MLS (Oct. 20.34-36p4)
K20U01P 2020 UP1 (arc=5 days, H=25.6 ~26m) from Steward Mt. Lemmon Sta. (Oct. 21.13p3)
K20U01F 2020 UF1 (arc=7 days, H=22.8 ~93m) from MLS (Oct. 20.27-29p4)
K20U01E 2020 UE1 (arc=5 days, H=25.8 ~23m) from PS2 (Oct. 20.36-40p4)
K20U01C 2020 UC1 (arc=5 days, H=24.7 ~39m) from Steward Mt. Lemmon Sta. (Oct. 21.16p4)
K20T07G 2020 TG7 (arc=6 days, H=24.3 ~47m) from Steward Mt. Lemmon Sta. (Oct. 21.36-38p3 at G=20.84-22.43)
K20T05Q 2020 TQ5 (arc=12 days, H=25.1 ~32m) from PS1 (Oct. 20.39-42p4 at w=22.09-76)
K20T03V 2020 TV3 (arc=10 days, H=23.6 ~65m) from Steward Mt. Lemmon Sta. (Oct. 21.35-36p4)
K20T03G 2020 TG3 (Q=4.613 AU, arc=14 days, H=22.1 ~129m) from iTelescope Obs. Mayhill (Oct. 17.32p1 & 17.40p1) and CSS (Oct. 20.23-26p3)
K20S02S 2020 SS2 (arc=32 days, H=22.7 ~98m) from MLS (Oct. 20.21-22p4)
K20R11Q 2020 RQ11 (arc=37 days, H=22.2 ~123m) from MLS (Oct. 20.25-27p4 at G=20.77-22.31)
K20R09E 2020 RE9 (arc=37 days, H=23.9 ~56m) from PS1 (Oct. 20.34-37p3 at w=21.90-22.19)
K20R08A 2020 RA8 (Q=4.018 AU, arc=36 days, H=24.2 ~49m) from PS2 (Oct. 20.55-59p3)
K20R06O 2020 RO6 (arc=37 days, H=22.5 ~107m) from MLS (Oct. 20.19-20p4 at G=21.27-22.02)
K20R05V 2020 RV5 (arc=69 days, H=23.8 ~59m) from ATLAS Haleakala (Oct. 20.35-39p4)
K20R04W 2020 RW4 (arc=40 days, H=25.1 ~32m) from MLS (Oct. 20.28-29p4)
K20R03X 2020 RX3 (Q=4.398 AU, arc=40 days, H=22.3 ~117m) from PS1 (Oct. 20.34-37p4)
K20R02M 2020 RM2 (arc=43 days, H=23.7 ~62m) from Steward Mt. Lemmon Sta. (Oct. 21.35p4)
K20Q03P 2020 QP3 (arc=64 days, H=22.7 ~98m) from PS2 (Oct. 21.30-33p4)
K20H08A 2020 HA8 (arc=177 days, H=22.3 ~117m) from PS1 (Oct. 20.39-42p4 at w=22.3-6)
K16J00N 2016 JN (arc=3 opp, H=23.4 ~71m) from PS1 (Oct. 20.34-36p3)
K15U67W 2015 UW67 (arc=5 opp, H=22.8 ~93m) from Salvatore di Giacomo Obs. (Oct. 20.98-00p2)
K09U01L 2009 UL1 (arc=2 opp, H=23.5 ~68m) from PS1 (Oct. 20.29-31p3)
K04H00M 2004 HM (arc=2 opp, H=23.1 ~81m) from NEAT's USAF Haleakala telescope (2004 April 24.61-62p2) and PS1 (Oct. 20.34-37p4)
K20O07K 2020 OK7 (arc=83 days, H=21.8 ~148m) from PS2 (Oct. 20.27-29p3) and Steward Mt. Lemmon Sta. (Oct. 21.19-22p4)
Observations of other objects
K20U02G 2020 UG2 (arc=3 days, H=21.7 ~155m) from PS1 (Oct. 20.40-43p4)
K20T08N 2020 TN8 (q=0.351 AU, arc=5 days, H=20.6 ~257m) from PS1 (Oct. 20.34-37p3 at w=21.8-22.2)
K20T07C 2020 TC7 (arc=6 days, H=19.6 ~407m) from MLS (Oct. 20.32-34p4)
K20T07A 2020 TA7 (i=41.8°, arc=6 days, H=21.7 ~155m) from ATLAS Haleakala (Oct. 20.31-33p4) and Steward Mt. Lemmon Sta. (Oct. 21.15p4)
K20T05P 2020 TP5 (i=43.2°, arc=32 days, H=20.9 ~224m) from PS1 (Oct. 20.40-42p3 at w=21.9-22.2)
K20T01C 2020 TC1 (arc=14 days, H=20.8 ~234m) from Steward Mt. Lemmon Sta. (Oct. 21.16p4)
K20S03F 2020 SF3 (Q=4.370 AU, arc=40 days, H=21.6 ~162m) from PS2 (Oct. 20.54-58p4)
K20S01C 2020 SC1 (arc=37 days, H=21.0 ~214m) from PS2 (Oct. 21.35-37p3)
K20R09Z 2020 RZ9 (Q=4.208 AU, arc=37 days, H=21.2 ~195m) from PS1 (Oct. 21.28-30p3)
K20R00E 2020 RE (arc=55 days, H=20.2 ~309m) from PS1 (Oct. 20.23-26p4)
K20Q13M 2020 QM13 (arc=63 days, H=21.0 ~214m) from MLS (Oct. 20.30-32p4)
K20Q06U 2020 QU6 (arc=55 days, H=18.2 ~776m) from ATLAS Haleakala (Oct. 20.29-32p4) and Castelmartini Obs. (Oct. 20.81p3)
K20Q04M 2020 QM4 (arc=62 days, H=18.6 ~645m) from CSS (Oct. 20.29-30p4)
K20P05C 2020 PC5 (Q=4.177 AU, arc=67 days, H=18.6 ~645m) from ATLAS Haleakala (Oct. 20.38-41p4)
K20P01D 2020 PD1 (Q=4.135 AU, arc=120 days, H=19.3 ~467m) from ATLAS Haleakala (Oct. 20.39-42p4)
K20O08C 2020 OC8 (arc=127 days, H=20.7 ~245m) from PS1 (Oct. 20.22-25p7) and ATLAS Haleakala (Oct. 20.30-32p4)
K20O07S 2020 OS7 (Q=4.461 AU, arc=95 days, H=20.3 ~295m) from MLS (Oct. 20.14-16p3)
K20K05Z 2020 KZ5 (arc=147 days, H=19.9 ~355m) from PS2 (Oct. 20.26-30p4)
K20H08P 2020 HP8 (arc=5 opp, H=20.2 ~309m) from PS2 (Oct. 21.31-33p3)
K18G05V 2018 GV5 (arc=2 opp, H=20.0 ~339m) from PS1 (Oct. 20.34-38p4) and PS2 (Oct. 20.36-40p3)
K17S19E 2017 SE19 (arc=3 opp, H=19.8 ~371m) from MLS (Oct. 20.32-34p4)
K17R15D 2017 RD15 (arc=3 opp, H=19.5 ~426m) from MLS (Oct. 20.23-25p4)
K17M04A 2017 MA4 (arc=3 opp, H=18.6 ~645m) from MLS (Oct. 20.07-09p4)
K17B31P 2017 BP31 (arc=4 opp, H=19.8 ~371m) from PS1 (Oct. 20.34-37p4 at w=21.6-22.2)
K16R40Y 2016 RY40 (arc=3 opp, H=19.0 ~537m) from MLS (Oct. 20.28-30p4)
K16F14Y 2016 FY14 (arc=2 opp, H=19.1 ~513m) from GINOP-KHK (Oct. 20.90-92p3)
K16E85D 2016 ED85 (Q=5.062 AU, arc=3 opp, H=17.7 ~977m) from ATLAS Mauna Loa (Oct. 20.58-61p4)
K14WK1D 2014 WD201 (arc=4 opp, H=19.3 ~467m) from PS1 (Oct. 20.44-48p4)
K14UB6R 2014 UR116 (arc=6 opp, H=19.8 ~371m) from ATLAS Mauna Loa (Oct. 20.49p3)
K14L21W 2014 LW21 (Q=5.410 AU, arc=3 opp, H=18.6 ~645m) from MLS (Oct. 20.19-20p4)
K13U14X 2013 UX14 (arc=4 opp, H=18.3 ~741m) from iTelObs-Mayhill (Oct. 20.32-36p3)
K13P06Y 2013 PY6 (arc=4 opp, H=19.3 ~467m) from CSS (Oct. 20.23-26p3) and ATLAS Haleakala (Oct. 20.34-35p4)
K12UD6R 2012 UR136 (arc=5 opp, H=19.2 ~490m) from PS2 (Oct. 20.56-59p3)
K12S22A 2012 SA22 (arc=3 opp, H=18.0 ~851m) from ATLAS Mauna Loa (Oct. 20.37-41p4)
K10KC7K 2010 KK127 (arc=3 opp, H=20.7 ~245m) from PS1 (Oct. 20.44-47p4)
K09T12K 2009 TK12 (arc=5 opp, H=20.6 ~257m) from PS2 (Oct. 21.27-29p3)
K09K00K 2009 KK (arc=5 opp, H=20.5 ~269m) from MLS (Oct. 20.46-48p4)
K09F29Y 2009 FY29 (arc=3 opp, H=20.0 ~339m) from PS2 (Oct. 20.31-35p4)
K08Y32X 2008 YX32 (arc=7 opp, H=20.8 ~234m) from MLS (Oct. 20.34-36p4 at G=21.16-22.46)
K07VD7X 2007 VX137 (arc=5 opp, H=18.5 ~676m) from Forti Obs. (Oct. 19.98-99p2), CSS (Oct. 20.21-23p4), and PS2 (Oct. 20.27-30p4)
K07T08G 2007 TG8 (Q=4.305 AU, arc=3 opp, H=18.6 ~645m) from ATLAS Mauna Loa (Oct. 20.44-46p4)
K07S01R 2007 SR1 (arc=4 opp, H=20.1 ~323m) from Chabot Obs. (Oct. 21.21-22p3)
K06U63D 2006 UD63 (arc=4 opp, H=18.9 ~562m) from MLS (Oct. 20.19-21p4)
K06S06A 2006 SA6 (Q=4.504 AU, arc=4 opp, H=19.2 ~490m) from PS1 (Oct. 20.55-59p7)
K06H05Y 2006 HY5 (i=36.1°, arc=2 opp, H=20.3 ~295m) from MLS (Oct. 21.31-32p4)
K05S26H 2005 SH26 (arc=5 opp, H=20.5 ~269m) from MLS (Oct. 20.32-34p4)
K05JA8T 2005 JT108 (arc=6 opp, H=19.4 ~446m) from ATLAS Mauna Loa (Oct. 20.41-48p4)
K04U00B 2004 UB (arc=4 opp, H=20.4 ~282m) from Southern Utsunomiya (Oct. 18.71p2)
K03U22G 2003 UG22 (arc=3 opp, H=21.1 ~204m) from PS1 (Oct. 20.57-59p3)
K02T67S 2002 TS67 (arc=6 opp, H=19.1 ~513m) from ATLAS Haleakala (Oct. 20.50-52p4)
K02G08Z 2002 GZ8 (Q=4.633 AU, arc=4 opp, H=18.4 ~708m) from SATINO-1 (Oct. 17.95-96p3)
K00T28U 2000 TU28 (arc=3 opp, H=21.0 ~214m) from MLS (Oct. 20.35-37p4) and ATLAS Haleakala (Oct. 20.44-46p5)
J99S10G 1999 SG10 (arc=4 opp, H=20.5 ~269m) from MLS (Oct. 20.09-11p4)
J98W02A 1998 WA2 (Q=4.271 AU, arc=2 opp, H=19.9 ~355m) from ATLAS Mauna Loa (Oct. 20.44-46p3)
p3125 513125 1997 GC32 from CSS (Oct. 20.41-43p4)
o5667 505667 2014 UV33 from PS1 (Oct. 20.61-62p3)
n5511 495511 2014 UD206 from PS1 (Oct. 20.22-24p3)
m0824 480824 1999 JO6 from MLS (Oct. 20.37-39p4) and ATLAS Haleakala (Oct. 20.47-49p4)
l4179 474179 1999 VS6 from CSS (Oct. 20.33-34p4)
k5749 465749 2009 WO6 from ATLAS Haleakala (Oct. 20.52-54p6)
j5192 455192 2000 QN130 from PS1 (Oct. 20.60-63p4)
i7903 447903 2007 XJ20 from PS1 (Oct. 20.56-59p4 at w=22.2-5)
g8086 428086 2006 NM from ATLAS Mauna Loa (Oct. 20.42-47p7)
g0302 420302 2011 XZ1 from CSS (Oct. 20.17-19p4)
f7211 417211 2005 XL80 from PS1 (Oct. 20.30-32p3)
f4903 414903 2010 XT45 from CSS (Oct. 20.33-34p4) and PS2 (Oct. 20.55-59p3)
f4586 414586 2009 UV18 from CSS (Oct. 20.29-31p4)
e7338 407338 2010 RQ30 from PS1 (Oct. 20.29-32p4)
e4108 404108 2012 SF51 from CSS (Oct. 20.19-20p3)
d5207 395207 2010 HQ80 from PS1 (Oct. 20.44-48p4)
d2211 392211 2009 TG10 from PS1 (Oct. 21.27-31p3)
c5343 385343 2002 LV from PS1 (Oct. 20.61-63p4)
c0455 380455 2003 UL3 from MLS (Oct. 20.50p1)
b6707 376707 1995 OO from MLS (Oct. 20.14-16p4)
b4851 374851 2006 VV2 from PS1 (Oct. 20.28-32p8)
Z7058 357058 2001 OG25 from PS2 (Oct. 20.42-45p3)
Z4952 354952 2006 FJ9 from PS1 (Oct. 20.23-26p4)
Y3158 343158 2009 HC82 from ATLAS Haleakala (Oct. 20.61-64p4)
V6695 316695 1996 TE9 from ATLAS Haleakala (Oct. 20.31-33p4)
U5090 305090 2007 VQ4 from ATLAS Mauna Loa (Oct. 20.62-64p4)
U3262 303262 2004 RJ84 from CSS (Oct. 20.15-16p4)
Q2623 262623 2006 WY2 from PS1 (Oct. 20.60-63p4)
P6412 256412 2007 BT2 from PS2 (Oct. 20.31-35p4)
P3106 253106 2002 UR3 from PS2 (Oct. 20.60-63p4) and ATLAS Mauna Loa (Oct. 20.62-65p4)
N0979 230979 2005 AT42 from PS1 (Oct. 20.22-25p3)
L9021 219021 1991 LH from CSS (Oct. 20.10-12p4)
L7430 217430 2005 SN25 from MLS (Oct. 20.23-25p4)
J0788 190788 2001 RT17 from PS1 (Oct. 21.27-31p4)
J0208 190208 2006 AQ from CSS (Oct. 20.41-43p4)
J0119 190119 2004 VA64 from PS1 (Oct. 20.57-59p3)
I5716 185716 1998 SF35 from CSS (Oct. 20.37-38p3) and PS1 (Oct. 20.44-48p4)
G3902 163902 2003 SW222 from ATLAS Mauna Loa (Oct. 20.47-48p4)
G3373 163373 2002 PZ39 from PS1 (Oct. 20.39-42p3)
G3081 163081 2002 AG29 from ATLAS Haleakala (Oct. 20.26-28p4)
G2913 162913 2001 MT18 from PS1 (Oct. 20.28-32p4)
G2173 162173 Ryugu (1999 JU3) from So. Utsunomiya (Oct. 20.45-49p9)
F9856 159856 2004 JW6 from ATLAS Haleakala (Oct. 20.47-49p4)
F9402 159402 1999 AP10 from ATLAS Mauna Loa (Oct. 20.30-32p4) and Kuban State Univ. Obs./code 1 (Oct. 20.66-74p54)
F4302 154302 2002 UQ3 from PS2 (Oct. 21.34-36p3)
F4144 154144 2002 FA5 from MLS (Oct. 20.46-48p4)
F3306 153306 2001 JL1 from PS2 (Oct. 21.30-32p3)
E4411 144411 2004 EW9 from ATLAS Mauna Loa (Oct. 20.42-44p4)
E2348 142348 2002 RX211 from PS1 (Oct. 20.60-63p4)
E1354 141354 2002 AJ29 from PS2 (Oct. 20.56-58p3)
E1052 141052 2001 XR1 from ATLAS Mauna Loa (Oct. 20.41-48p4)
E0333 140333 2001 TD2 from CSS (Oct. 20.23-26p4)
E0288 140288 2001 SN289 from PS1 (Oct. 21.22-24p3)
D7799 137799 1999 YB from MLS (Oct. 20.16-18p4)
D6849 136849 1998 CS1 from PS2 (Oct. 20.31-35p4)
A6538 106538 2000 WK63 from PS1 (Oct. 20.22-25p4)
99799 99799 2002 LJ3 from PS1 (Oct. 20.60-63p3)
96744 96744 1999 OW3 from ATLAS Haleakala (Oct. 20.35-39p4)
90075 90075 2002 VU94 from ATLAS Haleakala (Oct. 20.25-27p3)
89355 89355 2001 VS78 from ATLAS Haleakala (Oct. 20.55-57p4)
89136 89136 2001 US16 from PS1 (Oct. 20.57-59p3)
88264 88264 2001 KN20 from ATLAS Haleakala (Oct. 20.47-49p4)
88188 88188 2000 XH44 from ATLAS Mauna Loa (Oct. 20.53-54p4)
68359 68359 2001 OZ13 from MLS (Oct. 20.35-37p4) and ATLAS Haleakala (Oct. 20.43-44p4)
67367 67367 2000 LY27 from CSS (Oct. 20.52p1)
66272 66272 1999 JW6 from MLS (Oct. 20.46-48p4)
66008 66008 1998 QH2 from ATLAS Haleakala (Oct. 20.28-30p4)
65717 65717 1993 BX3 from CSS (Oct. 20.29-30p4) and ATLAS Haleakala (Oct. 20.35-41p4)
65690 65690 1991 DG from PS1 (Oct. 20.28-32p4)
30997 30997 1995 UO5 from PS2 (Oct. 20.42-45p3)
30825 30825 1990 TG1 from ATLAS Haleakala (Oct. 20.24-25p3)
29075 29075 1950 DA from PS2 (Oct. 20.59-61p3)
27031 27031 1998 RO4 from CSS (Oct. 20.29-31p3) and PS2 (Oct. 20.37-41p3)
23187 23187 2000 PN9 from MLS (Oct. 20.11-13p4)
23183 23183 2000 OY21 from ATLAS Haleakala (Oct. 20.61-64p4)
21374 21374 1997 WS22 from CSS (Oct. 20.39-41p4)
21088 21088 Chelyabinsk (1992 BL2) from PS2 (Oct. 20.60-63p4) and ATLAS Mauna Loa (Oct. 20.62-65p4)
19764 19764 2000 NF5 from ATLAS Haleakala (Oct. 20.38-41p4)
17182 17182 1999 VU from PS2 (Oct. 21.26-29p4)
15817 15817 Lucianotesi (1994 QC) from PS2 (Oct. 20.42-45p4)
10150 10150 1994 PN from ATLAS Haleakala (Oct. 20.57-60p4)
08567 8567 1996 HW1 from CSS (Oct. 20.43-45p4) and ATLAS Haleakala (Oct. 20.58-60p4)
08037 8037 1993 HO1 from CSS (Oct. 20.43-45p4)
08014 8014 1990 MF from CSS (Oct. 20.37-38p4)
07350 7350 1993 VA from CSS (Oct. 20.51-52p2)
06239 6239 Minos (1989 QF) from CSS (Oct. 20.24-26p4) and PS1 (Oct. 20.34-37p3)
06053 6053 1993 BW3 from ATLAS Haleakala (Oct. 20.21-24p3)
05645 5645 1990 SP from ATLAS Haleakala (Oct. 20.58-61p6)
05587 5587 1990 SB from ATLAS Haleakala (Oct. 20.46-47p4)
05143 5143 Heracles (1991 VL) from ATLAS Haleakala (Oct. 20.32-37p4)
05131 5131 1990 BG from CSS (Oct. 20.46-47p3) and PS1 (Oct. 20.61-63p3)
04503 4503 Cleobulus (1989 WM) from CSS (Oct. 20.26p2), ATLAS Haleakala (Oct. 20.34-35p7), and PS1 (Oct. 20.34-38p8)
04486 4486 Mithra (1987 SB) from CSS (Oct. 20.29-31p3)
04450 4450 Pan (1987 SY) from CSS (Oct. 20.24-26p4)
04197 4197 Morpheus (1982 TA) from MLS (Oct. 20.16-18p4)
03753 3753 Cruithne (1986 TO) from ATLAS Haleakala (Oct. 20.59-63p8)
03691 3691 Bede (1982 FT) from ATLAS Haleakala (Oct. 20.28-31p4)
03671 3671 Dionysus (1984 KD) from ATLAS Haleakala (Oct. 20.44-47p4)
03288 3288 Seleucus (1982 DV) from PS2 (Oct. 20.22-25p4) and ATLAS Haleakala (Oct. 20.31-33p4)
02212 2212 Hephaistos (1978 SB) from CSS (Oct. 20.29-30p4)
01943 1943 Anteros (1973 EC) from CSS (Oct. 20.47-49p4) and PS1 (Oct. 20.60-62p3)
01685 1685 Toro (1948 OA) from CSS (Oct. 20.51-52p4)
01036 1036 Ganymed (1924 TD) from ATLAS Haleakala (Oct. 20.55-57p4)
00887 887 Alinda (1918 DB) from PESCOPE (Oct. 20.74-76p3)
00433 433 Eros (1898 DQ) from CSS (Oct. 20.51-52p4)

MPEC 2020-U159 - "11:58 UT" - 2020 UA3

K20U03A 2020 UA3 (risk listed, Earth MOID=2.9 LD, H=26.6 ~16m, close passer) was picked up at 1312 UT on 20 Oct. by PS1, observing it at Oct. 15.58-62p3 at G=21.81-22.01 and 20.55-59p4 at w=21.20-49. This detection was confirmed by Steward Mt. Lemmon Sta. (Oct. 21.25-26p4).

MPEC 2020-U158 - "11:57 UT" - 2020 UZ2

K20U02Z 2020 UZ2 (Earth MOID=1.6 LD, H=27.1 ~13m) was picked up at 0709 UT on 20 Oct. by MLS, observing it at Oct. 20.30-32p4. This detection was confirmed by PS1 (Oct. 18.36p1), Steward Mt. Lemmon Sta. (Oct. 20.42p4 & 21.29-30p4), and Visnjan Obs. (Oct. 20.89p5).

MPEC 2020-U157 - "11:56 UT" - 2020 UY2

K20U02Y 2020 UY2 (Earth MOID=4.9 LD, H=27.2 ~12m) was picked up at 0641 UT on 20 Oct. by MLS, observing it at Oct. 20.28-30p4. This detection was confirmed by Steward Mt. Lemmon Sta. (Oct. 20.38p4, 20.43p4 & 21.14p4), ROASTERR-1 (Oct. 20.80-81p2), Visnjan Obs. (Oct. 20.82-83p5), and Tebbutt Obs. (Oct. 21.13-16p5).

MPEC 2020-U156 - "11:55 UT" - 2020 UX2

K20U02X 2020 UX2 (small asteroid, H=23.4 ~71m) was picked up at 0848 UT on 19 Oct. by MLS, observing it at Oct. 19.37-39p3. This detection was confirmed by Steward Mt. Lemmon Sta. (Oct. 19.41p4, 19.46-47p4, 20.26p4 & 21.30-31p4), Pittichova/Table Mtn. (Oct. 19.42-43p2 & 20.40-42p2), Visnjan Obs. (Oct. 19.82-83p3), Tebbutt Obs. (Oct. 20.16-21p3), and Dave Balam via Plaskett 1.8m Telescope (Oct. 20.30-31p6).

MPEC 2020-U155 - "11:53 UT" - 2020 UW2

K20U02W 2020 UW2 (small asteroid, Earth MOID=1.8 LD, H=24.9 ~35m) was picked up at 0934 UT on 20 Oct. by MLS, observing it at Oct. 20.40-41p3. This detection was confirmed by PS1 (Oct. 17.55-56p2), Steward Mt. Lemmon Sta. (Oct. 20.51p4 & 21.34-35p3), and Visnjan Obs. (Oct. 21.08-09p3).

MPEC 2020-U154 - "11:52 UT" - 2020 UV2

K20U02V 2020 UV2 (small asteroid, H=25.0 ~34m) was picked up at 1147 UT on 20 Oct. by PS1, observing it at Oct. 6.43-46p2 at G=21.38-22.12, 7.52-55p3 at G=21.03-34, and 20.49-53p3 at w=20.79-90. This detection was confirmed by Visnjan Obs. (Oct. 21.06-07p3), Steward Mt. Lemmon Sta. (Oct. 21.33p4), and MLS (Oct. 21.37-39p4).

MPEC 2020-U153 - "07:40 UT" - 2017 UH5

K17U05H 2017 UH5 (Earth MOID=8.6 LD, H=26.5 ~17m, NHATS target) from PS2 (Oct. 20.41-45p4) and MLS (Oct. 21.26-27p4)

MPEC 2020-U152 - "07:03 UT" - 2020 UU2

K20U02U 2020 UU2 (small asteroid, H=24.37 ~45m) was picked up at 0654 UT on 20 Oct. by CSS, observing it at Oct. 15.36-37p2, 17.39-42p2, and 20.29-30p4. This detection was confirmed by Steward Mt. Lemmon Sta. (Oct. 20.44p4 & 20.51p4), Visnjan Obs. (Oct. 20.84-86p5), Chabot Obs. (Oct. 21.19-20p4), and Tebbutt Obs. (Oct. 21.20-22p4).

MPEC 2020-U151 - "03:56 UT" - Comet P/2020 S6 (Leonard)

PK20S060 P/2020 S6 (Leonard) (q=1.875 AU, Q=5.324 AU, TP=2020 Nov. 23.61415 TT) was picked up at 0930 UT on 29 Sept. by MLS, observing it at Aug. 28.43-44p3, Sept. 18.46-49p4, 29.40-46p8, 30.39-42p4, and Oct. 9.34-37p4. This detection was confirmed by PS2 (Sept. 22.60-61p3, 29.47-48p2 & Oct. 11.56-60p3), Steward Mt. Lemmon Sta. (Sept. 29.49-50p4, Oct. 7.35-37p4, 8.35-38p4, 9.46-49p4, 18.32-34p3, 19.49-52p3 & 20.47-49p4), Paus Obs. (Sept. 29.93-96p4), Visnjan Obs. (Oct. 8.14-15p4), GROWTH India Telescope (Oct. 9.92-94p3), Telescope Live (Oct. 10.07-08p2 & 12.01-03p2), Salvatore di Giacomo Obs. (Oct. 10.09-10p2), SATINO-1 (Oct. 11.17-19p2), Hidetaka Sato via iTelescope Obs. Mayhill (Oct. 11.27-28p3), McDonald Obs. (Oct. 13.35-36p4 & 14.39-40p4), Sormano Obs. (Oct. 17.88-89p4), Schiaparelli Obs. (Oct. 18.10-11p2), Chante-Perdrix Obs. (Oct. 18.18-19p3), Rokycany Obs. (Oct. 19.86p3), Tebbutt Obs. (Oct. 20.24-26p3), and Balam/Plaskett (Oct. 20.40-41p5).

MPEC 2020-U150 - "03:41 UT" - 2020 UT2

K20U02T 2020 UT2 (small asteroid, Earth MOID=5.3 LD, H=25.8 ~23m) was picked up at 0435 UT on 19 Oct. by MLS, observing it at Oct. 19.19-24p7. This detection was confirmed by Steward Mt. Lemmon Sta. (Oct. 19.24-27p6, 20.15p4 & 21.09-10p4), Mt. John Obs. (Oct. 19.42-43p5), Visnjan Obs. (Oct. 19.80-81p4), and Tebbutt Obs. (Oct. 21.08-12p5).

MPEC 2020-U149 - "03:40 UT" - 2020 US2

K20U02S 2020 US2 (H=23.7 ~62m, NHATS) was picked up at 0259 UT on 19 Oct. by MLS, observing it at Oct. 19.12-14p3. This detection was confirmed by Steward Mt. Lemmon Sta. (Oct. 19.19p3, 20.08-09p3 & 21.08-09p4), the Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) (Oct. 19.19-20p3), Mt. John Obs. (Oct. 19.36-37p4), and Visnjan Obs. (Oct. 19.76p3).

MPEC 2020-U148 - "02:06 UT" - 2020 UR2

K20U02R 2020 UR2 (H=25.64 ~25m, NHATS) was picked up at 0650 UT on 20 Oct. by PS1, observing it at Oct. 11.34-37p2 and 20.29-32p3. This detection was confirmed by MLS (Oct. 19.21-24p5) and Visnjan Obs. (Oct. 20.81-82p2).

MPEC 2020-U147 - "00:21 UT" - 2020 UQ2

K20U02Q 2020 UQ2 (q=0.341 AU, Q=4.444 AU, H=21.7 ~155m) was picked up at 0703 UT on 19 Oct. by MLS, observing it at Oct. 19.29-31p4. This detection was confirmed by Steward Mt. Lemmon Sta. (Oct. 19.32p4, 19.37-40p8 & 20.18-19p4), Guidestar Obs. (Oct. 19.74-76p3), Visnjan Obs. (Oct. 19.75p6), Rokycany Obs. (Oct. 19.77p4), Forti Obs. (Oct. 19.78-79p3), SATINO-1 (Oct. 19.80-83p3), Castelmartini Obs. (Oct. 19.82-83p4 & 20.84-85p4), Transit Dreams Obs. (Oct. 20.06-07p5), Tebbutt Obs. (Oct. 20.10-13p3), Balam/Plaskett (Oct. 20.20p5), and ROASTERR-1 (Oct. 20.82-83p2).

MPEC 2020-U146 - "00:14 UT" - 2020 UO2

K20U02O 2020 UO2 (borderline-small, H=21.8 ~148m) was picked up at 1245 UT on 16 Oct. by PS1, observing it at Oct. 16.53-57p4 at w=22.01-85, 17.48-53p3 at G=21.87-97, and 20.41-43p3 at w=22.62-83. This detection was confirmed by R. Wainscoat on Mauna Kea (Oct. 19.38p3).

MPEC 2020-U145 - "00:13 UT" - 2020 TW8

K20T08W 2020 TW8 (H=27.3 ~12m, NHATS) was picked up at 0938 UT on 15 Oct. by PS1, observing it at Oct. 15.40-43p3 at w=22.52-56, 17.38-42p3 at G=21.34-22.41, and 20.39-42p3 at w=23.61-94. This detection was confirmed by PS2 (Oct. 19.57-59p4 at G=22.20-74).

MPEC 2020-U144 - "00:12 UT" - 2020 UN2

K20U02N 2020 UN2 (small asteroid, H=22.6 ~102m) was picked up at 1139 UT on 19 Oct. by PS1, observing it at Oct. 19.49-51p3 at w=21.66-22.44 and 20.39-43p3 at w=21.92-22.03. This detection was confirmed by PS2 (Oct. 16.38-40p3 at G=20.51-22.02 & 20.38-41p3 at G=21.13-22.13) and R. Wainscoat/Mauna Kea (Oct. 20.52p4).

MPEC 2020-U143 - "00:10 UT" - 2020 TV8

K20T08V 2020 TV8 (H=20.7 ~245m) was picked up at 1405 UT on 15 Oct. by PS1, observing it at Oct. 15.59-61p3 at w=22.32-70, 17.40-42p3 at G=21.54-22.07, 20.39-41p3 at G=21.84-22.50, and 20.55-58p3 at G=22.21-65. This detection was confirmed by CSS-Kuiper (Oct. 16.37-39p4 at G=21.97-22.46), PS2 (Oct. 19.57-59p4 at G=21.58-22.68), and R. Wainscoat/Mauna Kea (Oct. 20.52p3 at G=22.18-30).

Observers on 21 October '20

A total of 42 observers appeared in this day's MPECs.

Code	Observer / observatory
`T05`	ATLAS Haleakala in Hawaii, 37 in MPEC 2020-U160 -- 2020 TA7, 2020 RV5, 2020 QU6, 2020 PD1, 2020 PC5, 2020 OC8, 2013 PY6, 2002 TS67, 2000 TU28, 96744, 90075, 89355, 88264, 68359, 66008, 65717, 480824, 465749, 343158, 316695, 30825, 23183, 19764, 163081, 159856, 10150, 8567, 6053, 5645, 5587, 5143, 4503, 3753, 3691, 3671, 3288, 1036
`T08`	ATLAS Mauna Loa in Hawaii, 15 in MPEC 2020-U160 -- 2016 ED85, 2014 UR116, 2012 SA22, 2007 TG8, 2005 JT108, 1998 WA2, 88188, 428086, 305090, 253106, 21088, 163902, 159402, 144411, 141052
`215`	Buchloe Obs. in Germany, 1 in MPEC 2020-U160 -- 2020 TK4
`160`	Castelmartini Obs. in Italy, 2 in MPECs 2020-U147 & 2020-U160 -- 2020 UQ2, 2020 QU6
`703`	Catalina Sky Survey (CSS) in Arizona, 36 in MPECs 2020-U152 & 2020-U160 -- 2020 UU2, 2020 UA1, 2020 TK5, 2020 TG3, 2020 QM4, 2013 PY6, 2007 VX137, 67367, 65717, 513125, 474179, 420302, 414903, 414586, 404108, 303262, 27031, 219021, 21374, 190208, 185716, 140333, 8567, 8037, 8014, 7350, 6239, 5131, 4503, 4486, 4450, 3200, 2212, 1943, 1685, 433
`V06`	Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) in Arizona, 2 in MPECs 2020-U143 & 2020-U149 -- 2020 US2, 2020 TV8
`G58`	Chabot Obs. in northern California, 3 in MPECs 2020-U152 & 2020-U160 -- 2020 UU2, 2012 US9, 2007 SR1
`A77`	Chante-Perdrix Obs. in France, 1 in MPEC 2020-U151 -- P/2020 S6
`970`	Chelmsford Obs. in England, 1 in MPEC 2020-U160 -- 2020 TS4
`Z581`	program code 1 via ESA Test-Bed Telescope Cebreros in Spain, 1 in MPEC 2020-U160 -- 2020 TF6
`K83`	Forti Obs., 2 in MPECs 2020-U147 & 2020-U160 -- 2020 UQ2, 2007 VX137
`K88`	GINOP-KHK in Hungary, 1 in MPEC 2020-U160 -- 2016 FY14
`N51`	GROWTH India Telescope, 1 in MPEC 2020-U151 -- P/2020 S6
`A17`	Guidestar Obs. in Germany, 1 in MPEC 2020-U147 -- 2020 UQ2
`H06`	iTelescope Obs. Mayhill in New Mexico, 2 in MPEC 2020-U160 -- 2020 TG3, 2013 UX14
`H06\|`	Hidetaka Sato in Japan via iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2020-U151 -- P/2020 S6
`2461`	program code 1 via KLENOT in the Czech Republic, 1 in MPEC 2020-U166 -- 2020 UN3
`C401`	program code 1 via Kuban State Univ. Obs. in Russia, 2 in MPEC 2020-U160 -- 2020 UA, 159402
`568^`	R. Wainscoat on Mauna Kea in Hawaii, 3 in MPECs 2020-U143, 2020-U144 & 2020-U146 -- 2020 UO2, 2020 UN2, 2020 TV8
`711`	McDonald Obs. in Texas, 1 in MPEC 2020-U151 -- P/2020 S6
`474`	Mt. John Obs. in New Zealand, 2 in MPECs 2020-U149 & 2020-U150 -- 2020 UT2, 2020 US2
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 49 in MPECs 2020-U147, 2020-U148, 2020-U149, 2020-U150, 2020-U151, 2020-U153, 2020-U154, 2020-U155, 2020-U156, 2020-U157, 2020-U158, 2020-U160, 2020-U161, 2020-U162, 2020-U164, 2020-U165 & 2020-U166 -- 2020 UZ2, 2020 UY2, 2020 UX2, 2020 UW2, 2020 UV2, 2020 UT2, 2020 UT1, 2020 US2, 2020 UR2, 2020 UQ2, 2020 UN3, 2020 UM3, 2020 UL3, 2020 UJ3, 2020 UF3, 2020 UF1, 2020 TC7, 2020 SS2, P/2020 S6, 2020 RW4, 2020 RQ11, 2020 RO6, 2020 QM13, 2020 OS7, 2017 UH5, 2017 SE19, 2017 RD15, 2017 MA4, 2016 RY40, 2014 LW21, 2009 KK, 2008 YX32, 2006 UD63, 2006 HY5, 2005 SH26, 2000 TU28, 1999 SG10, 68359, 66272, 484402, 480824, 380455, 376707, 23187, 217430, 190166, 154144, 137799, 4197
`608`	NEAT's USAF Haleakala telescope in Hawaii, 1 in MPEC 2020-U160 -- 2004 HM
`F51`	Pan-STARRS 1 (PS1) in Hawaii, 71 in MPECs 2020-U143, 2020-U144, 2020-U145, 2020-U146, 2020-U148, 2020-U154, 2020-U155, 2020-U158, 2020-U159, 2020-U160, 2020-U161, 2020-U162, 2020-U163, 2020-U164, 2020-U165 & 2020-U166 -- 2020 UZ2, 2020 UW2, 2020 UV2, 2020 UR2, 2020 UO2, 2020 UN3, 2020 UN2, 2020 UM3, 2020 UL3, 2020 UK3, 2020 UJ3, 2020 UG2, 2020 UF3, 2020 UA3, 2020 UA1, 2020 TX2, 2020 TW8, 2020 TW2, 2020 TW, 2020 TV8, 2020 TS5, 2020 TQ5, 2020 TP5, 2020 TN8, 2020 SH6, 2020 RZ9, 2020 RX3, 2020 RG1, 2020 RE9, 2020 RE, 2020 QZ4, 2020 OC8, 2020 HA8, 2018 GV5, 2017 BP31, 2016 JN, 2014 WD201, 2010 KK127, 2009 UL1, 2006 SA6, 2004 HM, 2003 UG22, 99799, 89136, 65690, 505667, 495511, 455192, 447903, 417211, 407338, 395207, 392211, 388945, 385343, 374851, 354952, 262623, 230979, 190788, 190119, 185716, 163373, 162913, 142348, 140288, 106538, 6239, 5131, 4503, 1943
`F52`	Pan-STARRS 2 (PS2) in Hawaii, 38 in MPECs 2020-U143, 2020-U144, 2020-U145, 2020-U151, 2020-U153, 2020-U160 & 2020-U165 -- 2020 UN2, 2020 UM3, 2020 UK2, 2020 UE2, 2020 UE1, 2020 TZ1, 2020 TW8, 2020 TV8, 2020 TK5, 2020 SF3, 2020 SC1, P/2020 S6, 2020 RA8, 2020 QP3, 2020 OK7, 2020 KZ5, 2020 HP8, 2018 GV5, 2017 UH5, 2012 UR136, 2009 TK12, 2009 FY29, 2007 VX137, 414903, 357058, 30997, 29075, 27031, 256412, 253106, 21088, 17182, 15817, 154302, 153306, 141354, 136849, 3288
`B49`	Paus Obs. in Spain, 1 in MPEC 2020-U151 -- P/2020 S6
`L68`	PESCOPE, 1 in MPEC 2020-U160 -- 887
`6581`	Dave Balam via Plaskett 1.8m Telescope in British Columbia, 3 in MPECs 2020-U147, 2020-U151 & 2020-U156 -- 2020 UX2, 2020 UQ2, P/2020 S6
`L04`	ROASTERR-1 in Romania, 3 in MPECs 2020-U147, 2020-U157 & 2020-U160 -- 2020 UY2, 2020 UQ2, 2020 UK2
`K61`	Rokycany Obs. in the Czech Republic, 2 in MPECs 2020-U147 & 2020-U151 -- 2020 UQ2, P/2020 S6
`L07`	Salvatore di Giacomo Obs., 2 in MPECs 2020-U151 & 2020-U160 -- P/2020 S6, 2015 UW67
`C95`	SATINO-1 in France, 3 in MPECs 2020-U147, 2020-U151 & 2020-U160 -- 2020 UQ2, P/2020 S6, 2002 GZ8
`204`	Schiaparelli Obs. in Italy, 1 in MPEC 2020-U151 -- P/2020 S6
`W885`	M. Kumrucu-Lohmiller in Massachusetts via Slooh.com Chile Obs. in Chile, 1 in MPEC 2020-U160 -- 2020 UA
`587`	Sormano Obs. in Italy, 1 in MPEC 2020-U151 -- P/2020 S6
`Q21`	Southern Utsunomiya in Japan, 2 in MPEC 2020-U160 -- 2004 UB, 162173
`I52`	Steward Obs. Mt. Lemmon Station in Arizona, 47 in MPECs 2020-U147, 2020-U149, 2020-U150, 2020-U151, 2020-U152, 2020-U154, 2020-U155, 2020-U156, 2020-U157, 2020-U158, 2020-U159, 2020-U160, 2020-U161, 2020-U162, 2020-U163, 2020-U164, 2020-U165 & 2020-U166 -- 2020 UZ2, 2020 UZ1, 2020 UY2, 2020 UY1, 2020 UX2, 2020 UW2, 2020 UV2, 2020 UV, 2020 UU2, 2020 UT2, 2020 US2, 2020 US, 2020 UQ2, 2020 UP1, 2020 UN3, 2020 UM3, 2020 UL3, 2020 UK3, 2020 UK, 2020 UJ3, 2020 UJ, 2020 UH, 2020 UG, 2020 UF3, 2020 UF2, 2020 UE, 2020 UC1, 2020 UA3, 2020 UA2, 2020 UA1, 2020 TZ1, 2020 TY1, 2020 TV3, 2020 TS5, 2020 TS4, 2020 TR, 2020 TM6, 2020 TK5, 2020 TK4, 2020 TJ3, 2020 TG7, 2020 TD8, 2020 TC1, 2020 TA7, P/2020 S6, 2020 RM2, 2020 OK7
`673!`	Jana Pittichova Chesley via Table Mtn. Obs. in southern California, 3 in MPECs 2020-U156, 2020-U160 & 2020-U164 -- 2020 UX2, 2020 US2, 2020 UL3
`858`	Tebbutt Obs. in New Mexico, 7 in MPECs 2020-U147, 2020-U150, 2020-U151, 2020-U152, 2020-U156, 2020-U157 & 2020-U163 -- 2020 UY2, 2020 UX2, 2020 UU2, 2020 UT2, 2020 UQ2, 2020 UK3, P/2020 S6
`Z08`	Telescope Live, 1 in MPEC 2020-U151 -- P/2020 S6
`W33`	Transit Dreams Obs., 1 in MPEC 2020-U147 -- 2020 UQ2
`L01`	Visnjan Obs. in Croatia, 17 in MPECs 2020-U147, 2020-U148, 2020-U149, 2020-U150, 2020-U151, 2020-U152, 2020-U154, 2020-U155, 2020-U156, 2020-U157, 2020-U158, 2020-U160, 2020-U162, 2020-U163, 2020-U164, 2020-U165 & 2020-U166 -- 2020 UZ2, 2020 UY2, 2020 UX2, 2020 UW2, 2020 UV2, 2020 UU2, 2020 UT2, 2020 US2, 2020 UR2, 2020 UQ2, 2020 UN3, 2020 UM3, 2020 UL3, 2020 UL2, 2020 UK3, 2020 UJ3, P/2020 S6
`D201`	program code 1 via Zadko Obs. in Western Australia, 1 in MPEC 2020-U161 -- 2020 UF3

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

Impact Risk Monitoring on 21 October '20

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS at 2350 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 UA3	JPL Sentry	1700	2118-2118	1	2.565e-09	-9.88	-9.88	0	JPL: Computed at 06:12 today Pacific time based on 11 observations spanning 5.6752 days (2020-Oct-15.582602 to 2020-Oct-21.257835). Diameter approximately 0.015 km. from weighted mean H=26.73.

2020 UK2	NEODyS	2000	2089-2116	12	1.18e-05	-6.25	-6.54	0	NEODyS: "Based on 21 optical observations (of which 1 are rejected as outliers) from 2020-10-18.184 to 2020-10-21.384."
2020 UK2	JPL Sentry	1700	2089-2109	6	9.2909e-06	-6.30	-6.70	0	JPL: Computed at 08:29 today Pacific time based on 20 observations spanning 3.2008 days (2020-Oct-18.18281 to 2020-Oct-21.383563). Diameter approximately 0.013 km. from weighted mean H=27.02.

2020 UJ	NEODyS	2000	2043	1	1.21e-09	-8.07	-8.07	0	NEODyS: "Based on 21 optical observations (of which 1 are rejected as outliers) from 2020-10-10.324 to 2020-10-21.147."
2020 UJ	JPL Sentry	1700	2043-2043	1	6.107e-08	-6.37	-6.37	0	JPL: Computed at 08:29 today Pacific time based on 20 observations spanning 10.823 days (2020-Oct-10.323552 to 2020-Oct-21.146092). Diameter approximately 0.051 km. from weighted mean H=24.09.

2020 UH	NEODyS	2000	2055-2119	4	7.06e-07	-6.19	-6.24	0	NEODyS: "Based on 47 optical observations (of which 2 are rejected as outliers) from 2020-10-15.309 to 2020-10-21.104."
2020 UH	JPL Sentry	1700	2098-2119	3	4.7256e-07	-6.33	-6.52	0	JPL: Computed at 08:31 today Pacific time based on 47 observations spanning 5.7944 days (2020-Oct-15.308398 to 2020-Oct-21.102817). Diameter approximately 0.045 km. from weighted mean H=24.40.

2020 UE	NEODyS	2000	2042-2120	45	2.67e-05	-4.81	-5.35	n/a	NEODyS: "Based on 106 optical observations (of which 0 are rejected as outliers) from 2020-10-15.470 to 2020-10-21.133."
2020 UE	JPL Sentry	1700	2061-2118	25	2.984641e-05	-4.73	-5.07	0	JPL: Computed at 08:34 today Pacific time based on 106 observations spanning 5.6622 days (2020-Oct-15.46967 to 2020-Oct-21.131912). Diameter approximately 0.026 km. from weighted mean H=25.56.

2020 UA	NEODyS	2000	2068-2114	8	1.83e-06	-7.62	-7.83	0	NEODyS: "Based on 61 optical observations (of which 0 are rejected as outliers) from 2020-10-16.316 to 2020-10-20.922."
2020 UA	JPL Sentry	1700	2068-2081	8	1.33837e-06	-7.71	-8.17	0	JPL: Computed at 08:45 today Pacific time based on 61 observations spanning 4.6057 days (2020-Oct-16.31568 to 2020-Oct-20.92137). Diameter approximately 0.007 km. from weighted mean H=28.40.

2020 TD8	NEODyS	2000	2045-2113	29	1.1e-05	-5.85	-5.95	0	NEODyS: "Based on 17 optical observations (of which 0 are rejected as outliers) from 2020-10-15.323 to 2020-10-21.142."
2020 TD8	JPL Sentry	1700	2045-2096	12	6.77792e-06	-6.05	-6.14	0	JPL: Computed at 08:13 today Pacific time based on 17 observations spanning 5.8184 days (2020-Oct-15.322434 to 2020-Oct-21.140802). Diameter approximately 0.013 km. from weighted mean H=27.04.

2020 TF6	NEODyS	2000	2056-2075	8	9.19e-06	-6.21	-6.47	0	NEODyS: "Based on 51 optical observations (of which 0 are rejected as outliers) from 2020-10-15.220 to 2020-10-18.910."
2020 TF6	JPL Sentry	1700	2056-2075	6	1.63223e-05	-5.96	-6.32	0	JPL: Computed at 08:11 today Pacific time based on 51 observations spanning 3.6902 days (2020-Oct-15.218786 to 2020-Oct-18.908948). Diameter approximately 0.010 km. from weighted mean H=27.58.

2020 TK5	NEODyS	2000	2039-2061	14	5.05e-06	-4.41	-4.5	0	NEODyS: "Based on 69 optical observations (of which 0 are rejected as outliers) from 2020-10-14.332 to 2020-10-21.196."
2020 TK5	JPL Sentry	1700	2039-2056	6	1.311498e-05	-3.75	-3.85	0	JPL: Computed at 09:02 today Pacific time based on 69 observations spanning 6.8640 days (2020-Oct-14.331481 to 2020-Oct-21.195503). Diameter approximately 0.066 km. from weighted mean H=23.55.

2020 TS4	JPL Sentry	1700	2103-2103	1	3.587e-09	-10.26	-10.26	0	JPL: Computed at 08:59 today Pacific time based on 85 observations spanning 7.1122 days (2020-Oct-14.208103 to 2020-Oct-21.320301). Diameter approximately 0.009 km. from weighted mean H=27.87.

2020 TJ3	NEODyS	2000	2056-2120	47	7.03e-05	-4.18	-4.75	n/a	NEODyS: "Based on 49 optical observations (of which 1 are rejected as outliers) from 2020-10-11.172 to 2020-10-21.155."
2020 TJ3	JPL Sentry	1700	2056-2119	27	6.54279038e-05	-4.19	-4.83	0	JPL: Computed at 08:23 today Pacific time based on 49 observations spanning 9.9826 days (2020-Oct-11.171145 to 2020-Oct-21.153784). Diameter approximately 0.041 km. from weighted mean H=24.58.

2020 TY1	NEODyS	2000	2092-2120	10	7.04e-07	-5.24	-5.86	n/a	NEODyS: "Based on 58 optical observations (of which 0 are rejected as outliers) from 2020-10-08.411 to 2020-10-21.370."
2020 TY1	JPL Sentry	1700	2092-2113	5	5.9511e-07	-5.28	-5.65	0	JPL: Computed at 08:09 today Pacific time based on 58 observations spanning 12.959 days (2020-Oct-08.410259 to 2020-Oct-21.369469). Diameter approximately 0.100 km. from weighted mean H=22.59.

2020 TW	NEODyS	2000	2076-2112	5	2.26e-07	-8.24	-8.49	0	NEODyS: "Based on 72 optical observations (of which 1 are rejected as outliers) from 2020-10-07.276 to 2020-10-20.367."
2020 TW	JPL Sentry	1700	2076-2117	4	4.0479e-07	-7.97	-8.27	0	JPL: Computed at 08:14 today Pacific time based on 72 observations spanning 13.091 days (2020-Oct-07.274719 to 2020-Oct-20.365762). Diameter approximately 0.011 km. from weighted mean H=27.53.

2016 VF18	JPL Sentry	1700	2031-2082	6	2.3750825e-06	-8.01	-8.05	0	JPL: Computed at 10:31 April 10th of 2017 Pacific time based on 10 observations spanning .18137 days (2016-Nov-11.35628 to 2016-Nov-11.53765). Diameter approximately 0.004 km. from weighted mean H=29.79.

2015 UH52	JPL Sentry	1700	2075-2101	2	9.461e-07	-6.65	-6.94	0	JPL: Computed at 08:47 July 18th of 2019 Pacific time based on 77 observations spanning 14.798 days (2015-Oct-23.45412 to 2015-Nov-07.251926). Diameter approximately 0.022 km. from weighted mean H=25.98.

2014 UD57	JPL Sentry	1700	2076-2115	6	2.877838e-05	-5.19	-5.32	0	JPL: Computed at 14:42 April 11th of 2017 Pacific time based on 99 observations spanning 31.181 days (2014-Oct-25.17501 to 2014-Nov-25.355944). Diameter approximately 0.023 km. from weighted mean H=25.81.

2012 UE	JPL Sentry	1700	2040-2058	4	6.2489e-07	-7.63	-7.71	0	JPL: Computed at 07:22 July 16th of 2019 Pacific time based on 19 observations spanning 1.9085 days (2012-Oct-15.377097 to 2012-Oct-17.2856). Diameter approximately 0.007 km. from weighted mean H=28.45.

2006 UU17	JPL Sentry	1700	2075-2107	6	1.6605423e-05	-5.74	-6.00	0	JPL: Computed at 19:23 April 12th of 2017 Pacific time based on 21 observations spanning 6.7524 days (2006-Oct-20.40564 to 2006-Oct-27.15804). Diameter approximately 0.018 km. from weighted mean H=26.41.

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 21 October '20

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

0000 10/22	Grabbed MPEC 2020-U162 - 2020 UJ3 - see above Grabbed MPEC 2020-U163 - 2020 UK3 - see above Grabbed MPEC 2020-U164 - 2020 UL3 - see above Grabbed MPEC 2020-U165 - 2020 UM3 - see above Grabbed MPEC 2020-U166 - 2020 UN3 - see above
2300	Grabbed MPEC 2020-U161 - 2020 UF3 - see above
2000	Noted that NEODyS has updated its 2020 TD8 risk assessment - see above Noted that NEODyS has updated its 2020 TF6 risk assessment - see above Noted that NEODyS has updated its 2020 TJ3 risk assessment - see above Noted that NEODyS has updated its 2020 TK5 risk assessment - see above Noted that NEODyS has updated its 2020 TW risk assessment - see above Noted that NEODyS has updated its 2020 TY1 risk assessment - see above Noted that NEODyS has updated its 2020 UA risk assessment - see above Noted that NEODyS has updated its 2020 UE risk assessment - see above Noted that NEODyS has updated its 2020 UH risk assessment - see above Noted that NEODyS has updated its 2020 UJ risk assessment - see above Noted that NEODyS has updated its 2020 UK2 risk assessment - see above
1700	Noted that JPL Sentry has updated its 2006 UU17 risk assessment - see above Noted that JPL Sentry has updated its 2012 UE risk assessment - see above Noted that JPL Sentry has updated its 2014 UD57 risk assessment - see above Noted that JPL Sentry has updated its 2015 UH52 risk assessment - see above Noted that JPL Sentry has updated its 2016 VF18 risk assessment - see above Noted that JPL Sentry has updated its 2020 TD8 risk assessment - see above Noted that JPL Sentry has updated its 2020 TF6 risk assessment - see above Noted that JPL Sentry has updated its 2020 TJ3 risk assessment - see above Noted that JPL Sentry has updated its 2020 TK5 risk assessment - see above Noted that JPL Sentry has updated its 2020 TS4 risk assessment - see above Noted that JPL Sentry has updated its 2020 TW risk assessment - see above Noted that JPL Sentry has updated its 2020 TY1 risk assessment - see above Noted that JPL Sentry has updated its 2020 UA risk assessment - see above Noted that JPL Sentry has posted 2020 UA3 as an impact risk - see above Noted that JPL Sentry has updated its 2020 UE risk assessment - see above Noted that JPL Sentry has updated its 2020 UH risk assessment - see above Noted that JPL Sentry has updated its 2020 UJ risk assessment - see above Noted that JPL Sentry has updated its 2020 UK2 risk assessment - see above Grabbed MPEC 2020-U152 - 2020 UU2 - see above Grabbed MPEC 2020-U153 - 2017 UH5 - see above Grabbed MPEC 2020-U154 - 2020 UV2 - see above Grabbed MPEC 2020-U155 - 2020 UW2 - see above Grabbed MPEC 2020-U156 - 2020 UX2 - see above Grabbed MPEC 2020-U157 - 2020 UY2 - see above Grabbed MPEC 2020-U158 - 2020 UZ2 - see above Grabbed MPEC 2020-U159 - 2020 UA3 - see above Grabbed MPEC 2020-U160 - Daily Orbit Update - see above
0500	Grabbed MPEC 2020-U143 - 2020 TV8 - see above Grabbed MPEC 2020-U144 - 2020 UN2 - see above Grabbed MPEC 2020-U145 - 2020 TW8 - see above Grabbed MPEC 2020-U146 - 2020 UO2 - see above Grabbed MPEC 2020-U147 - 2020 UQ2 - see above Grabbed MPEC 2020-U148 - 2020 UR2 - see above Grabbed MPEC 2020-U149 - 2020 US2 - see above Grabbed MPEC 2020-U150 - 2020 UT2 - see above Grabbed MPEC 2020-U151 - Comet P/2020 S6 (Leonard) - see above

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