2020-10-27 Tracking News

Contents on 27 October '20

IAU Minor Planet Center
- NEOCP Activity -- 41 listings
- New MPECs -- thirteen MPECs
Observers -- 55 observers
Impact Risk Monitoring -- fifteen objects
Chronology

Asteroid/Comet Connection (A/CC) Resources:

Consolidated Risk Tables - the CRT page
Of 1205 risk-listed objects, 196 have had news in the last 31 days. Updated at 1730 UTC on 27 Oct.
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 27 October '20

The MPC's NEO Confirmation Page has 41 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 41 objects listed. Of these, 29 were "one nighters." So far The Tracking News has counted a total of 54 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 27 October '20

Minor Planet Electronic Circulars

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

MPEC 2020-U241 time-stamped "02:08 UT" - Comet C/2014 OG392 (Panstarrs) - see below
MPEC 2020-U242 time-stamped "03:32 UT" - 2020 UF6 - see below
MPEC 2020-U243 time-stamped "04:18 UT" - Comet P/2020 S7 (Panstarrs) - see below
MPEC 2020-U244 time-stamped "05:08 UT" - Comet C/2020 S8 (Lemmon) - see below
MPEC 2020-U245 time-stamped "06:21 UT" - 2020 UG6 - see below
MPEC 2020-U246 time-stamped "06:31 UT" - 2020 UH6 - see below
MPEC 2020-U247 time-stamped "11:50 UT" - 2020 UJ6 - see below
MPEC 2020-U248 time-stamped "12:07 UT" - Daily Orbit Update - see below
MPEC 2020-U249 time-stamped "14:29 UT" - 2020 UK6 - see below
MPEC 2020-U250 time-stamped "14:31 UT" - 2020 UL6 - see below
MPEC 2020-U251 time-stamped "15:34 UT" - Comet C/2020 T5 (Lemmon) - see below
MPEC 2020-U252 time-stamped "18:30 UT" - Comet P/2020 U2 (Panstarrs) - see below
MPEC 2020-U253 time-stamped "21:55 UT" - 2020 UM6

MPEC 2020-U253 - "21:55 UT" - 2020 UM6

K20U06M 2020 UM6 (small asteroid, Earth MOID=3.7 LD, H=25.3 ~29m) was picked up at 0850 UT on 26 Oct. by ATLAS Mauna Loa, observing it at Oct. 26.37-38p4. This detection was confirmed by ATLAS Haleakala (Oct. 26.52p5), ROASTERR-1 (Oct. 26.81-82p3 & 27.88p2), Great Shefford Obs. (Oct. 26.83-84p4 & 27.82-83p4), Paus Obs. (Oct. 26.84-85p6 & 27.87-88p2), Clixby Obs. (Oct. 26.86-87p5 & 27.87p3), Northolt Branch Obs. (Oct. 26.89-90p4), North Obs. (Oct. 26.94-95p3), Galilei Obs. (Oct. 26.98-00p5), Robert Holmes via Cerro Tololo Inter-American Obs. (CTIO) (Oct. 27.13p5), Steward Obs. Mt. Lemmon Station (Oct. 27.16p4), Mountainville Obs. (Oct. 27.21p1 & 27.32p1), Wiggins Obs. (Oct. 27.27p8), Forti Obs. (Oct. 27.81-82p4), Hoyerswerda Obs. (Oct. 27.81p2), Farra d'Isonzo Obs. (Oct. 27.82-83p4), Muensterschwarzach Obs. (Oct. 27.83-84p3), Visnjan Obs. (Oct. 27.85p6), and Chelmsford Obs. (Oct. 27.86-87p2).

MPEC 2020-U252 - "18:30 UT" - Comet P/2020 U2 (Panstarrs)

PK20U020 P/2020 U2 (Panstarrs) (q=1.849 AU, Q=5.706 AU, TP=2020 Dec. 25.70177 TT) was picked up at 0920 UT on 20 Oct. by Pan-STARRS 1 (PS1), observing it at Sept. 17.49-52p3, Oct. 17.39-42p4, 20.39-43p4, 23.54-56p2, and 25.51-53p3. This detection was confirmed by the Mt. Lemmon Survey (MLS) (Sept. 20.39-40p3, 21.29-30p3 & Oct. 13.34-36p4), Pan-STARRS 2 (PS2) (Sept. 21.62p1, Oct. 8.62p1 & 19.57-59p4), Visnjan Obs. (Oct. 21.96-98p3), Hidetaka Sato via iTelescope Obs. Mayhill (Oct. 22.38-39p2), and GROWTH India Telescope (Oct. 26.68-69p6).

MPEC 2020-U251 - "15:34 UT" - Comet C/2020 T5 (Lemmon)

CK20T050 C/2020 T5 (Lemmon) (i=66.6°, q=1.889 AU, Q=1845.402 AU, TP=2020 Oct. 9.62350 TT) was picked up at 0223 UT on 5 Oct. by MLS, observing it at Sept. 18.12-15p3 and Oct. 5.10-12p4. This detection was confirmed by PS1 (April 19.54-56p3), Steward Mt. Lemmon Sta. (Oct. 5.17-18p3, 6.08-09p4, 7.10-11p4, 8.11-12p4, 9.10-12p4, 10.09-10p4, 12.10p1, 19.08-10p3 & 20.12-13p4), Astronomical Research Obs. Westfield (Oct. 6.03-04p3), Visnjan Obs. (Oct. 7.79p4), Sato/iTelObs-Mayhill (Oct. 9.08-09p3), McDonald Obs. (Oct. 13.11-13p5, 14.09-10p4 & 15.09-10p3), Celado Obs. (Oct. 13.80-81p3), Chante-Perdrix Obs. (Oct. 16.77-81p3), Schiaparelli Obs. (Oct. 18.81-83p2), Tebbutt Obs. (Oct. 19.08-09p2 & 23.08-10p2), Salvatore di Giacomo Obs. (Oct. 19.85-89p2 & 20.76-80p2), Dave Balam via Plaskett 1.8m Telescope (Oct. 20.11-12p6, 21.11p6, 22.11-12p4 & 23.11-12p6), Chabot Obs. (Oct. 21.11-12p3), and GROWTH India Telescope (Oct. 24.64p3).

MPEC 2020-U250 - "14:31 UT" - 2020 UL6

K20U06L 2020 UL6 (small asteroid, Earth MOID=8.9 LD, H=27.44 ~11m) was picked up at 0644 UT on 24 Oct. by MLS, observing it at Oct. 24.28-30p4, 24.42-43p2, and 27.26-27p4.

MPEC 2020-U249 - "14:29 UT" - 2020 UK6

K20U06K 2020 UK6 (small asteroid, H=24.20 ~49m) was picked up at 0643 UT on 24 Oct. by MLS, observing it at Oct. 24.28-30p3 and 27.23p4. This detection was confirmed by Steward Mt. Lemmon Sta. (Oct. 24.37-38p4).

<< DOU on 27 October '20 >> MPEC 2020-U248 - "12:07 UT" - Daily Orbit Update

Observations of risk-listed objects
K20U04X 2020 UX4 (small asteroid, arc=5 days, H=25.6 ~26m, close passer) from ATLAS Mauna Loa (Oct. 26.38-40p4) and Great Shefford Obs. (Oct. 26.95-96p3)
K20U04O 2020 UO4 (small asteroid, arc=4 days, H=28.7 ~6m, close passer, NHATS target) from Great Shefford Obs. (Oct. 26.89-90p3)
K20U04C 2020 UC4 (small asteroid, arc=5 days, H=26.1 ~20m, close passer, NHATS target) from Great Shefford Obs. (Oct. 26.98-01p4)
K20U03L 2020 UL3 (small asteroid, arc=10 days, H=23.2 ~78m) from Steward Mt. Lemmon Sta. (Oct. 27.32-33p4)
K20U03A 2020 UA3 (small asteroid, arc=12 days, H=26.7 ~15m, close passer, NHATS target) from Steward Mt. Lemmon Sta. (Oct. 27.27-28p4)
K20T08D 2020 TD8 (small asteroid, arc=12 days, H=26.9 ~14m, close passer, NHATS target) from Northolt Branch Obs. (Oct. 25.90-91p4), North Obs. (Oct. 26.81-85p7), Great Shefford Obs. (Oct. 26.88-89p4 & 27.03-04p2), and Paus Obs. (Oct. 26.97p3)
K20T02O 2020 TO2 (small asteroid, arc=2 days, H=26.5 ~17m, close passer) from Schiaparelli Obs. (Oct. 12.12-14p3)
K20T01Y 2020 TY1 (small asteroid, arc=19 days, H=22.7 ~98m) from Holmes/CTIO (Oct. 26.23-25p4), Clixby Obs. (Oct. 26.98-99p5), and Steward Mt. Lemmon Sta. (Oct. 27.29p4)
K20R10D 2020 RD10 (small asteroid, arc=33 days, H=24.4 ~45m) from UH/Tholen NEO Follow-Up 2.24m Telescope (Oct. 14.28p1 at G=25.14)
K20P02T 2020 PT2 (small asteroid, arc=5 days, H=26.3 ~19m, close passer) from Schiaparelli Obs. (Aug. 15.11-12p3)
K20P01U 2020 PU1 (small asteroid, arc=6 days, H=26.5 ~17m, close passer, NHATS target) from Schiaparelli Obs. (Aug. 15.03-04p3)
Observations of recently (no longer) risk-listed objects
K20T03U 2020 TU3 (small asteroid, arc=16 days, H=23.7 ~62m) from Steward Mt. Lemmon Sta. (Oct. 27.42p2)
K20S04P 2020 SP4 (almost small, Q=4.695 AU, arc=24 days, H=21.8 ~148m) from program code 5 via Discovery Channel Telescope (DCT) (Oct. 5.50-51p5 at G=22.2-3)
K20S00O 2020 SO (NHATS target) from Schiaparelli Obs. (Oct. 12.96-99p3)
Observations of close-passing objects
K20U04U 2020 UU4 (arc=4 days, H=26.8 ~15m) from Great Shefford Obs. (Oct. 26.76-77p4)
K20U03J 2020 UJ3 (arc=15 days, H=27.1 ~13m) from Northolt Branch Obs. (Oct. 25.97-98p2)
K20U01N 2020 UN1 (arc=17 days, H=25.5 ~27m) from Paus Obs. (Oct. 26.98p3), Clixby Obs. (Oct. 27.02-03p5), and Steward Mt. Lemmon Sta. (Oct. 27.34p4)
K20T06M 2020 TM6 (arc=10 days, H=26.1 ~20m, NHATS target) from the Catalina Sky Survey (CSS) (Oct. 17.22-24p2)
K20T05R 2020 TR5 (arc=17 days, H=26.2 ~19m) from Northolt Branch Obs. (Oct. 25.91-93p4), Clixby Obs. (Oct. 26.04-05p6), ATLAS Mauna Loa (Oct. 26.39-41p4), North Obs. (Oct. 26.88-90p8), Paus Obs. (Oct. 26.96-97p3), and Great Shefford Obs. (Oct. 26.96-97p4)
K20T02D 2020 TD2 (Q=4.141 AU, arc=14 days, H=25.5 ~27m) from Schiaparelli Obs. (Oct. 11.09-10p3)
K20S06R 2020 SR6 (arc=24 days, H=25.7 ~25m, NHATS target) from PS2 (Oct. 4.31-35p2)
K20S03A 2020 SA3 (arc=26 days, H=25.4 ~28m, NHATS target) from CSS (Sept. 23.30-31p4)
K12T04C 2012 TC4 (radar support) from the Spacewatch 1.8m telescope (2017 Sept. 26.28-29p3)
K08U95U 2008 UU95 (Q=4.239 AU, arc=2 opp, H=23.7 ~62m) from SATINO-1 (Oct. 19.91-92p3)
Observation campaigns (NHATS targets, radar support)
K20U05B 2020 UB5 (arc=7 days, H=25.0 ~34m, NHATS) from Steward Mt. Lemmon Sta. (Oct. 27.33p4 at G=20.82-22.50)
K20U03N 2020 UN3 (arc=7 days, H=23.9 ~56m, NHATS) from Holmes/CTIO (Oct. 26.22-23p3) and Steward Mt. Lemmon Sta. (Oct. 27.43p4)
K20U03M 2020 UM3 (arc=9 days, H=24.4 ~45m, NHATS) from Holmes/CTIO (Oct. 26.18-20p3)
K20U02F 2020 UF2 (arc=7 days, H=21.8 ~148m, NHATS) from WISE (Oct. 24.23p1, 24.36p1, 24.49p1, 24.62p1 & 24.75p1)
K20S06B 2020 SB6 (arc=6 days, H=26.0 ~21m, NHATS) from CSS (Sept. 24.21-22p2)
K20R07U 2020 RU7 (arc=11 days, H=25.4 ~28m, NHATS) from MLS (Sept. 22.19-20p4)
K20R03T 2020 RT3 (arc=28 days, H=26.2 ~19m, NHATS) from MLS (Sept. 25.29-30p4)
K20R02W 2020 RW2 (arc=60 days, H=22.8 ~93m, NHATS) from Steward Mt. Lemmon Sta. (Oct. 27.40-41p4)
K20L00R 2020 LR (arc=123 days, H=24.1 ~51m, NHATS) from Schiaparelli Obs. (Aug. 21.89-91p2)
K19R00Y 2019 RY (arc=2 opp, H=24.8 ~37m, NHATS) from MLS (Sept. 21.30-31p4)
K19N01C 2019 NC1 (arc=4 opp, H=21.4 ~178m, NHATS) from Schiaparelli Obs. (Aug. 6.89-90p3)
K17Q03D 2017 QD3 (arc=28 days, H=22.3 ~117m, NHATS) from Spacewatch 1.8m (2017 Sept. 16.12-15p3)
K13S20M 2013 SM20 (arc=2 opp, H=25.1 ~32m, NHATS) from MLS (Sept. 20.27-28p4 & 22.21-23p4)
K12U09S 2012 US9 (arc=3 opp, H=21.8 ~148m, NHATS) from PS1 (Oct. 8.43-46p3, 10.47-49p4 & 11.49-52p4) and PS2 (Oct. 24.28-31p3 & 25.31-34p3)
K08T09Y 2008 TY9 (arc=2 opp, H=25.0 ~34m, NHATS) from Schiaparelli Obs. (Oct. 11.12-14p3)
K07U01Y 2007 UY1 (arc=3 opp, H=23.0 ~85m, NHATS) from PS2 (Oct. 26.37-40p4)
K07T66E 2007 TE66 (arc=4 opp, H=21.6 ~162m, NHATS) from PS2 (Oct. 16.37-40p4) and PS1 (Oct. 19.50-52p3)
-- NHATS target table -- Planetary radar schedules: Arecibo & Goldstone
Observations of small (H>22.0) & smallish (21.7<H<=22.0) asteroids
K20U06G 2020 UG6 (arc=8 days, H=23.9 ~56m) from MLS (Oct. 19.28-29p2)
K20U06E 2020 UE6 (arc=9 days, H=23.5 ~68m) from MLS (Oct. 17.36-38p4)
K20U05Z 2020 UZ5 (arc=4 days, H=22.5 ~107m) from Steward Mt. Lemmon Sta. (Oct. 27.32p4)
K20U05N 2020 UN5 (arc=4 days, H=26.9 ~14m) from Steward Mt. Lemmon Sta. (Oct. 27.28-29p4)
K20U05M 2020 UM5 (q=0.299 AU, arc=7 days, H=26.0 ~21m) from Steward Mt. Lemmon Sta. (Oct. 27.37p3)
K20U05C 2020 UC5 (arc=7 days, H=23.0 ~85m) from Steward Mt. Lemmon Sta. (Oct. 27.30-31p4)
K20U04M 2020 UM4 (arc=4 days, H=22.8 ~93m) from Holmes/CTIO (Oct. 26.02-03p5)
K20U04G 2020 UG4 (arc=8 days, H=24.6 ~41m) from Steward Mt. Lemmon Sta. (Oct. 27.31p4)
K20U03X 2020 UX3 (arc=8 days, H=24.9 ~35m) from Steward Mt. Lemmon Sta. (Oct. 27.41p3)
K20U02B 2020 UB2 (Q=4.824 AU, arc=10 days, H=22.5 ~107m) from Steward Mt. Lemmon Sta. (Oct. 27.27p2)
K20U01W 2020 UW1 (arc=10 days, H=23.9 ~56m) from Holmes/CTIO (Oct. 26.20-21p3) and Steward Mt. Lemmon Sta. (Oct. 27.25p4)
K20U01F 2020 UF1 (arc=13 days, H=22.8 ~93m) from Holmes/CTIO (Oct. 26.20-21p3)
K20U00Z 2020 UZ (i=44.2°, arc=11 days, H=22.1 ~129m) from Steward Mt. Lemmon Sta. (Oct. 27.28p4)
K20U00F 2020 UF (arc=11 days, H=24.5 ~43m) from PS2 (Oct. 21.36-38p2 & 23.56-58p3) and Steward Mt. Lemmon Sta. (Oct. 27.24p4)
K20T03P 2020 TP3 (arc=27 days, H=22.1 ~129m) from PS1 (Oct. 26.43-47p4)
K20T03G 2020 TG3 (Q=4.607 AU, arc=21 days, H=22.1 ~129m) from Clixby Obs. (Oct. 26.93-94p5)
K20T01Q 2020 TQ1 (arc=19 days, H=24.2 ~49m) from MLS (Oct. 10.21-23p4) and Steward Mt. Lemmon Sta. (Oct. 27.22p3 at G=20.91-22.26)
K20T00Y 2020 TY (arc=11 days, H=24.5 ~43m) from MLS (Oct. 12.22-24p4)
K20T00M 2020 TM (arc=30 days, H=22.9 ~89m) from MLS (Oct. 12.22-23p4)
K20S07R 2020 SR7 (arc=29 days, H=22.1 ~129m) from PS1 (Oct. 23.30-32p4)
K20S06V 2020 SV6 (arc=32 days, H=24.0 ~54m) from PS1 (Oct. 26.55-58p4)
K20S02X 2020 SX2 (arc=40 days, H=23.0 ~85m) from PS1 (Oct. 26.55-58p4)
K20S02P 2020 SP2 (arc=24 days, H=24.2 ~49m) from MLS (Sept. 21.19p4)
K20S02K 2020 SK2 (arc=9 days, H=24.7 ~39m) from MLS (Sept. 23.35-37p4)
K20R06X 2020 RX6 (arc=12 days, H=25.4 ~28m) from Steward Mt. Lemmon Sta. (Sept. 16.35p3)
K20R05V 2020 RV5 (arc=76 days, H=23.9 ~56m) from program code "*" (19) via Slooh.com Chile Obs. (Oct. 22.16p1 & 22.24p1), ATLAS Mauna Loa (Oct. 26.41-43p4), and Clixby Obs. (Oct. 27.00-01p5)
K20R04Y 2020 RY4 (arc=51 days, H=23.6 ~65m) from Steward Mt. Lemmon Sta. (Oct. 27.47-48p4)
K20R03V 2020 RV3 (arc=14 days, H=24.4 ~45m) from PS1 (Sept. 16.41-45p3 at w=21.90-22.23)
K20R03J 2020 RJ3 (arc=18 days, H=23.4 ~71m) from MLS (Sept. 22.36-38p4)
K20Q04E 2020 QE4 (arc=66 days, H=23.8 ~59m) from Schiaparelli Obs. (Oct. 12.03-05p2)
K20N00F 2020 NF (arc=123 days, H=24.0 ~54m) from Schiaparelli Obs. (Aug. 6.92-93p2 & 14.99p2)
K19J05L 2019 JL5 (arc=58 days, H=25.3 ~29m) from program code "!" (10) via DECam (2019 July 5.23-24p5 at G=22.7)
K18D03L 2018 DL3 (arc=1 day, H=24.9 ~35m) from Mauna Kea (2018 Feb. 17.34-36p5 at r=23.0-9)
K17S20T 2017 ST20 (arc=3 opp, H=22.6 ~102m) from PS1 (Oct. 16.41-45p3)
K13Y48B 2013 YB48 (arc=4 opp, H=22.1 ~129m) from DECam/code "!" (10) (2019 July 4.23-30p24 & 2019 July 5.31-39p33)
K11U91R 2011 UR91 (arc=2 opp, H=24.3 ~47m) from Schiaparelli Obs. (Oct. 19.11-13p2)
K09P01Q 2009 PQ1 (arc=2 opp, H=22.6 ~102m) from IAS Obs. Hakos (Aug. 12.90-94p4)
K20U02Q 2020 UQ2 (q=0.342 AU, Q=4.356 AU, arc=8 days, H=21.9 ~141m) from PS2 (Oct. 22.28-30p3) and Steward Mt. Lemmon Sta. (Oct. 27.20p4)
K20T07Q 2020 TQ7 (arc=38 days, H=22.0 ~135m) from Steward Mt. Lemmon Sta. (Oct. 27.34p4)
K20T04M 2020 TM4 (Q=4.142 AU, arc=15 days, H=21.9 ~141m) from Steward Mt. Lemmon Sta. (Oct. 27.43-44p4)
K20L02J 2020 LJ2 (arc=122 days, H=21.8 ~148m) from Schiaparelli Obs. (Aug. 15.01-02p2)
K06U17E 2006 UE17 (arc=2 opp, H=21.9 ~141m) from PS2 (Oct. 16.36-40p4)
Observations of other objects
K20T06N 2020 TN6 (arc=12 days, H=19.1 ~513m) from PS1 (Oct. 26.44-48p3)
K20T04G 2020 TG4 (Q=4.172 AU, arc=37 days, H=20.2 ~309m) from PS2 (Oct. 26.39-41p3) and PS1 (Oct. 26.55-58p4)
K20T02C 2020 TC2 (arc=18 days, H=20.8 ~234m) from Great Shefford Obs. (Oct. 26.79-81p2)
K20T01C 2020 TC1 (arc=18 days, H=20.8 ~234m) from PS2 (Oct. 16.32-35p4)
K20R09O 2020 RO9 (Q=4.238 AU, arc=43 days, H=18.5 ~676m) from PS1 (Oct. 26.60-64p3) and Steward Mt. Lemmon Sta. (Oct. 27.44-45p4)
K20Q04M 2020 QM4 (arc=68 days, H=18.6 ~645m) from PS2 (Oct. 26.33-36p4), PS1 (Oct. 26.39-41p3 & 26.49-52p6), and ATLAS Haleakala (Oct. 26.47-51p4)
K20P01D 2020 PD1 (Q=4.135 AU, arc=126 days, H=19.3 ~467m) from ATLAS Mauna Loa (Oct. 26.38-39p4)
K20O06X 2020 OX6 (arc=82 days, H=21.3 ~186m) from Schiaparelli Obs. (Aug. 21.99-01p3)
K20O04G 2020 OG4 (arc=95 days, H=18.5 ~676m) from PS2 (Oct. 26.42-46p3)
K20M03Z 2020 MZ3 (Q=4.359 AU, arc=127 days, H=20.0 ~339m) from Schiaparelli Obs. (Aug. 7.03-04p2)
K20M00P 2020 MP (arc=133 days, H=20.6 ~257m) from Holmes/CTIO (Oct. 26.05-06p3)
K20K03U 2020 KU3 (i=37.5°, Q=4.395 AU, arc=159 days, H=19.6 ~407m) from Steward Mt. Lemmon Sta. (Oct. 27.46-47p3)
K20H02B 2020 HB2 (arc=2 opp, H=20.5 ~269m) from DECam/code "!" (10) (2015 April 12.99p2 at V=23.4)
K19G20O 2019 GO20 (arc=76 days, H=19.3 ~467m) from DECam/code "!" (10) (2019 Feb. 19.37-39p4)
K18G05V 2018 GV5 (arc=2 opp, H=20.0 ~339m) from MLS (Oct. 15.28-30p4)
K17V12T 2017 VT12 (arc=4 opp, H=20.3 ~295m) from PS2 (Oct. 26.38-40p3) and PS1 (Oct. 26.55-58p3)
K17H03N 2017 HN3 (arc=3 opp, H=21.6 ~162m) from Schiaparelli Obs. (Aug. 21.84-85p2)
K17G06O 2017 GO6 (Q=4.121 AU, arc=2 opp, H=19.2 ~490m) from PS1 (Sept. 12.56-60p4) and PS2 (Sept. 17.55-57p2)
K16T18L 2016 TL18 (arc=3 opp, H=21.5 ~170m) from PS2 (Oct. 24.46-50p4)
K16F14Y 2016 FY14 (arc=2 opp, H=19.1 ~513m) from PS1 (Oct. 26.50-52p3)
K16CO6N 2016 CN246 (arc=3 opp, H=21.1 ~204m) from PS2 (Sept. 23.37-41p3)
K14Wa5G 2014 WG365 (arc=5 opp, H=20.0 ~339m) from PS2 (Oct. 26.56-59p3)
K14L26Q 2014 LQ26 (Q=5.150 AU, arc=2 opp, H=18.3 ~741m) from PS2 (Oct. 26.56-59p4)
K14E66Y 2014 EY66 (arc=2 opp, H=19.7 ~389m) from PS1 (Aug. 13.41-45p3), MLS (Aug. 18.29-30p4, Sept. 10.20-21p4 & 22.19-20p4), and PS2 (Sept. 13.36-40p4 & Oct. 6.23-26p3)
K13V09Z 2013 VZ9 (arc=2 opp, H=19.8 ~371m) from PS2 (Oct. 26.55-59p4)
K13U14X 2013 UX14 (arc=4 opp, H=18.3 ~741m) from Schiaparelli Obs. (Oct. 11.04-08p3)
K13P06Y 2013 PY6 (arc=4 opp, H=19.3 ~467m) from MASTER Tavrida (Oct. 25.80-81p2)
K13G07Y 2013 GY7 (arc=3 opp, H=20.5 ~269m) from WISE (Oct. 23.11p1, 23.63p1, 23.70p1, 23.76p1, 23.83p1, 23.89p1, 24.55p2, 24.61p1, 24.68p1, 24.74p1, 24.81p1 & 24.88p1)
K12S22B 2012 SB22 (arc=3 opp, H=19.2 ~490m) from DECam/code "!" (10) (2012 Nov. 22.06-11p3)
K11B59F 2011 BF59 (arc=3 opp, H=19.3 ~467m) from PS1 (Oct. 10.37-41p4)
K10T05U 2010 TU5 (arc=3 opp, H=18.9 ~562m) from PS2 (Oct. 26.56-60p3)
K09U00M 2009 UM (arc=4 opp, H=21.0 ~214m) from PS1 (Oct. 19.49-52p4)
K08U00C 2008 UC (arc=4 opp, H=18.8 ~589m) from DECam/code "!" (10) (2019 Aug. 25.32-34p7)
K08Q03U 2008 QU3 (arc=3 opp, H=20.5 ~269m) from Spacewatch 1.8m (2017 Sept. 15.49-50p3)
K08A01G 2008 AG1 (arc=3 opp, H=21.0 ~214m) from DECam/code "!" (10) (2019 July 28.06-07p4)
K07S01R 2007 SR1 (arc=4 opp, H=20.2 ~309m) from PS2 (Oct. 22.31-35p4 & 25.36-39p4) and PS1 (Oct. 25.36-39p2)
K05S26H 2005 SH26 (arc=5 opp, H=20.5 ~269m) from PS2 (Oct. 19.43-46p3)
K05JA8T 2005 JT108 (arc=6 opp, H=19.4 ~446m) from ATLAS Haleakala (Oct. 26.37-39p3) and Foxfire Village Obs. (Oct. 26.99-01p2 & 27.07p1)
K04U01S 2004 US1 (arc=2 opp, H=20.8 ~234m) from ATLAS Haleakala (Oct. 26.37-38p3) and ROASTERR-1 (Oct. 26.84-85p3)
K04U01R 2004 UR1 (arc=4 opp, H=20.5 ~269m) from Foxfire Village Obs. (Oct. 27.04-05p3)
K02T67S 2002 TS67 (arc=6 opp, H=19.1 ~513m) from PS2 (Oct. 26.56-60p4)
K00T28U 2000 TU28 (arc=3 opp, H=21.0 ~214m) from PS2 (Oct. 8.58-62p3)
K00P27Q 2000 PQ27 (arc=3 opp, H=20.0 ~339m) from PS1 (Oct. 26.37-40p4)
J98W02A 1998 WA2 (Q=4.271 AU, arc=2 opp, H=19.9 ~355m) from ATLAS Haleakala (Oct. 26.48-50p3 & 26.56p2)
q3804 523804 2000 YF29 from PS1 (Oct. 26.55-58p4)
i2037 442037 2010 PR66 from Schiaparelli Obs. (Aug. 4.93-94p2)
g8086 428086 2006 NM from ATLAS Haleakala (Oct. 26.48-49p3)
f4903 414903 2010 XT45 from ATLAS Mauna Loa (Oct. 26.40-42p4)
f4586 414586 2009 UV18 from ATLAS Mauna Loa (Oct. 26.40-42p4)
S0136 280136 2002 OM4 from Schiaparelli Obs. (Aug. 6.87-88p2)
G3902 163902 2003 SW222 from ATLAS Haleakala (Oct. 26.56-58p4)
G2210 162210 1999 SM5 from PS1 (Oct. 26.55-58p4)
G2173 162173 Ryugu (1999 JU3) from Southern Utsunomiya (Oct. 25.37-44p21)
F9402 159402 1999 AP10 from ATLAS Haleakala (Oct. 26.31-33p4), QOS Obs. (Oct. 26.71p9), and program code 1 via Kuban State Univ. Obs. (Oct. 26.72-88p23)
E4411 144411 2004 EW9 from ATLAS Haleakala (Oct. 26.45-48p4)
D8847 138847 2000 VE62 from Schiaparelli Obs. (Aug. 4.89-90p2)
B2221 112221 2002 KH4 from PS1 (Oct. 26.49-53p3)
90147 90147 2002 YK14 from Schiaparelli Obs. (Aug. 5.00-02p3)
87311 87311 2000 QJ1 from Schiaparelli Obs. (Aug. 15.01-02p2)
85275 85275 1994 LY from Schiaparelli Obs. (Aug. 4.97-98p3)
68359 68359 2001 OZ13 from ATLAS Mauna Loa (Oct. 26.43-45p4)
66391 66391 1999 KW4 from Schiaparelli Obs. (Aug. 6.86p3)
65803 65803 Didymos (1996 GT) from DCT/code 5 (Oct. 5.49-50p3)
65717 65717 1993 BX3 from ATLAS Mauna Loa (Oct. 26.39-41p4)
36284 36284 2000 DM8 from WISE (Oct. 23.46p2, 23.59p1 & 23.72p1)
11405 11405 1999 CV3 from Schiaparelli Obs. (Aug. 4.85-86p3)
10115 10115 1992 SK from PS2 (Oct. 26.42-46p4) and ATLAS Haleakala (Oct. 26.45-47p4)
08566 8566 1996 EN from Schiaparelli Obs. (Aug. 6.84-85p3)
08037 8037 1993 HO1 from PS1 (Oct. 26.60-64p4)
05587 5587 1990 SB from ATLAS Mauna Loa (Oct. 26.40-42p4)
03753 3753 Cruithne (1986 TO) from ATLAS Mauna Loa (Oct. 26.60-64p4)
03752 3752 Camillo (1985 PA) from Schiaparelli Obs. (Aug. 5.03-05p3)
01865 1865 Cerberus (1971 UA) from Schiaparelli Obs. (Aug. 4.86-87p3)
01685 1685 Toro (1948 OA) from ATLAS Mauna Loa (Oct. 26.61-64p4)
01036 1036 Ganymed (1924 TD) from ATLAS Mauna Loa (Oct. 26.53-55p4)

MPEC 2020-U247 - "11:50 UT" - 2020 UJ6

K20U06J 2020 UJ6 (H=19.8 ~371m) was picked up at 1035 UT on 22 Oct. by MLS, observing it at Oct. 12.40-42p2 and 22.44-46p4. This detection was confirmed by PS2 (Oct. 18.59-62p3) and Steward Mt. Lemmon Sta. (Oct. 22.51p3, 23.38-39p3 & 27.38-39p4).

MPEC 2020-U246 - "06:31 UT" - 2020 UH6

K20U06H 2020 UH6 (H=21.15 ~199m) was picked up at 1039 UT on 20 Oct. by PS1, observing it at Oct. 20.44-48p4 at w=22.16-80, 23.44-48p4 at w=22.80-23.40, 24.47-50p3 at G=21.62-22.02, 25.50-54p3 at w=22.94-23.17, and 26.54-57p4 at w=22.84-23.26.

MPEC 2020-U245 - "06:21 UT" - 2020 UG6

K20U06G 2020 UG6 (small asteroid, H=23.95 ~55m) was picked up at 0602 UT on 24 Oct. by MLS, observing it at Oct. 24.25-27p3 and 27.23-24p3. This detection was confirmed by Steward Mt. Lemmon Sta. (Oct. 24.34-35p4).

MPEC 2020-U244 - "05:08 UT" - Comet C/2020 S8 (Lemmon)

CK20S080 C/2020 S8 (Lemmon) (i=108.5°, q=2.364 AU, Q=536.802 AU, TP=2021 Apr. 10.92777 TT) was picked up at 0254 UT on 18 Sept. by MLS, observing it at Sept. 4.14-16p4 and 18.12-15p4. This detection was confirmed by PS1 (July 29.49p1, Aug. 11.39-41p3, 29.32-35p3, Sept. 4.29-33p4 & 5.28-31p3), PS2 (Aug. 26.26-30p3 & 28.29p1), the Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) (Sept. 18.19-20p4), ARO Westfield (Sept. 19.05-06p3), Steward Mt. Lemmon Sta. (Sept. 19.11p4, 20.19p4, 27.12p4, Oct. 5.09-10p4, 9.12-14p4, 10.14-15p3, 20.10-11p4 & 21.10-12p4), Sato/iTelObs-Mayhill (Sept. 21.12-13p3), Visnjan Obs. (Oct. 12.75-76p4), and McDonald Obs. (Oct. 14.07-08p3 & 15.06-08p4).

MPEC 2020-U243 - "04:18 UT" - Comet P/2020 S7 (Panstarrs)

PK20S070 P/2020 S7 was picked up at 0831 UT on 16 Sept. by PS1, observing it at Sept. 15.40-44p4, 16.36-44p7, and 22.49-52p4. This detection was confirmed by PS2 (Aug. 22.46-48p3, Sept. 12.41-44p4 & Oct. 8.30p1), MLS (Sept. 11.25-26p4), Purple Mtn. Obs. Xuyi Station (Sept. 12.66-69p3), McDonald Obs. (Sept. 17.23-24p3, 18.18-20p3, Oct. 13.15-16p3, 14.14-15p3 & 15.17-18p3), R. Wainscoat on Mauna Kea (Sept. 17.37p3, Oct. 9.49p2 & 20.29p3), Hidetaka Sato via iTelescope Obs. Siding Spring (Sept. 17.57-58p2), Visnjan Obs. (Sept. 18.82-84p4), Lothar Kurtze via Faulkes Telescope North (Sept. 19.48p5), Faulkes Telescope South (Sept. 24.54-55p7), Steward Mt. Lemmon Sta. (Oct. 4.13-15p3), program code "*" (19) via Faulkes Telescope South (Oct. 13.55-56p3), Celado Obs. (Oct. 13.82-84p3), and Stixendorf Obs. (Oct. 18.79-82p3).

MPEC 2020-U242 - "03:32 UT" - 2020 UF6

K20U06F 2020 UF6 (small asteroid, Earth MOID=1.9 LD, H=22.5 ~107m) was picked up at 1200 UT on 25 Oct. by PS2, observing it at Oct. 25.50-53p4. This detection was confirmed by MLS (Oct. 19.37p2 & 22.31-32p3), Great Shefford Obs. (Oct. 26.84-87p3), and Paus Obs. (Oct. 26.93-95p2).

MPEC 2020-U241 - "02:08 UT" - Comet C/2014 OG392 (Panstarrs)

CK14Od2G C/2014 OG392 (Panstarrs) (Centaur, q=9.970 AU, Q=14.463 AU, TP=2021 Nov. 26.69092 TT) was picked up at 1152 UT on 28 July 2014 by PS1, observing it at 2011 July 27.39-40p2, 2012 Aug. 4.34p1, 2012 Nov. 6.22p1, 2013 July 2.50p1, 2013 July 6.50p1, 2013 July 12.48-53p8, 2013 Aug. 3.45p1, 2013 Aug. 23.38p1, 2014 June 5.57p1, 2014 June 21.56-60p4, 2014 June 29.49-52p3, 2014 July 7.54-57p3, 2014 July 9.50p1, 2014 July 28.50-52p4, 2014 Aug. 26.38-42p4, 2014 Aug. 27.39-43p4, 2014 Sept. 12.33-37p4, 2014 Oct. 1.32p1, 2015 June 25.55-59p4, 2015 July 12.50-53p4, 2015 July 14.54-58p4, 2015 Sept. 5.37-40p4, 2015 Sept. 6.38-41p4, 2015 Oct. 9.29-32p4, 2015 Oct. 10.31-32p2, 2015 Nov. 7.20p1, 2016 July 7.54-57p4, 2016 Aug. 3.51-54p4, 2016 Oct. 6.36-40p8, 2016 Oct. 25.27-29p3, 2016 Nov. 15.21-25p4, 2017 July 8.59p1, 2017 July 22.58p1, 2017 July 30.49-53p4, 2017 Aug. 3.53-56p4, 2017 Aug. 17.48-51p4, 2017 Sept. 15.41-44p4, 2017 Sept. 22.38-41p4, 2017 Sept. 23.39p1, 2017 Nov. 7.30-34p4, 2017 Nov. 13.27-31p4, 2018 Jan. 5.22-23p4, 2019 Sept. 25.47-51p4, 2019 Sept. 26.49-52p4, 2019 Oct. 28.32-35p4, 2019 Dec. 24.23-27p4, July 2.59-60p3, and Sept. 16.48-51p4. This detection was confirmed by ARO Westfield (2014 July 29.31-34p3), Xuyi Sta. (2016 Aug. 28.69-72p2 & 2018 Sept. 11.69-73p3), Cerro Tololo Inter-American Obs. (CTIO) (2017 July 18.39-43p2, 2017 July 22.23p1, 2017 July 25.27p2, 2017 Aug. 20.20p1 & 2019 Aug. 30.41-42p4), ATLAS Mauna Loa (2017 Oct. 11.36-38p4), PS2 (2019 Nov. 2.28-32p3, Sept. 13.51-53p3, Oct. 7.42-45p3 & 18.47-48p3), Las Campanas Obs. (2019 Dec. 27.04-07p3), and program code "!" (10) via Discovery Channel Telescope (DCT) (2019 Dec. 30.09-11p6).

Observers on 27 October '20

A total of 55 observers appear in today's MPECs.

Code	Observer / observatory
`H21`	Astronomical Research Obs. Westfield in Illinois, 3 in MPECs 2020-U241, 2020-U244 & 2020-U251 -- C/2020 T5, C/2020 S8, C/2014 OG392
`T05`	ATLAS Haleakala in Hawaii, 10 in MPECs 2020-U248 & 2020-U253 -- 2020 UM6, 2020 QM4, 2005 JT108, 2004 US1, 1998 WA2, 428086, 163902, 159402, 144411, 10115
`T08`	ATLAS Mauna Loa in Hawaii, 14 in MPECs 2020-U241, 2020-U248 & 2020-U253 -- 2020 UX4, 2020 UM6, 2020 TR5, 2020 RV5, 2020 PD1, C/2014 OG392, 68359, 65717, 414903, 414586, 5587, 3753, 1685, 1036
`703`	Catalina Sky Survey (CSS) in Arizona, 3 in MPEC 2020-U248 -- 2020 TM6, 2020 SB6, 2020 SA3
`V06`	Catalina Sky Survey Kuiper Telescope in Arizona, 1 in MPEC 2020-U244 -- C/2020 S8
`K51`	Celado Obs. in Italy, 2 in MPECs 2020-U243 & 2020-U251 -- C/2020 T5, P/2020 S7
`807`	Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2020-U241 -- C/2014 OG392
`807\|`	Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 8 in MPECs 2020-U248 & 2020-U253 -- 2020 UW1, 2020 UN3, 2020 UM6, 2020 UM4, 2020 UM3, 2020 UF1, 2020 TY1, 2020 MP
`G58`	Chabot Obs. in northern California, 1 in MPEC 2020-U251 -- C/2020 T5
`A77`	Chante-Perdrix Obs. in France, 1 in MPEC 2020-U251 -- C/2020 T5
`970`	Chelmsford Obs. in England, 1 in MPEC 2020-U253 -- 2020 UM6
`Z99`	Clixby Obs. in England, 6 in MPECs 2020-U248 & 2020-U253 -- 2020 UN1, 2020 UM6, 2020 TY1, 2020 TR5, 2020 TG3, 2020 RV5
`W84!`	program code "!" (10) via DECam in Chile, 7 in MPEC 2020-U248 -- 2020 HB2, 2019 JL5, 2019 GO20, 2013 YB48, 2012 SB22, 2008 UC, 2008 AG1
`G37!`	program code "!" (10) via Discovery Channel Telescope in Arizona, 1 in MPEC 2020-U241 -- C/2014 OG392
`G375`	program code 5 via Discovery Channel Telescope (DCT) in Arizona, 2 in MPEC 2020-U248 -- 2020 SP4, 65803
`595`	Farra d'Isonzo Obs. in Italy, 1 in MPEC 2020-U253 -- 2020 UM6
`F652`	Lothar Kurtze in Germany via Faulkes Telescope North in Hawaii, 1 in MPEC 2020-U243 -- P/2020 S7
`E10`	Faulkes Telescope South in New South Wales, 1 in MPEC 2020-U243 -- P/2020 S7
`E10*`	program code "*" (19) via Faulkes Telescope South in New South Wales, 1 in MPEC 2020-U243 -- P/2020 S7
`K83`	Forti Obs., 1 in MPEC 2020-U253 -- 2020 UM6
`W46`	Foxfire Village Obs., 2 in MPEC 2020-U248 -- 2005 JT108, 2004 UR1
`X31`	Galilei Obs., 1 in MPEC 2020-U253 -- 2020 UM6
`J95`	Great Shefford Obs. in England, 9 in MPECs 2020-U242, 2020-U248 & 2020-U253 -- 2020 UX4, 2020 UU4, 2020 UO4, 2020 UM6, 2020 UF6, 2020 UC4, 2020 TR5, 2020 TD8, 2020 TC2
`N51`	GROWTH India Telescope, 2 in MPECs 2020-U251 & 2020-U252 -- P/2020 U2, C/2020 T5
`C43`	Hoyerswerda Obs. in Germany, 1 in MPEC 2020-U253 -- 2020 UM6
`221`	IAS Obs. Hakos in Namibia, 1 in MPEC 2020-U248 -- 2009 PQ1
`H06\|`	Hidetaka Sato in Japan via iTelescope Obs. Mayhill in New Mexico, 3 in MPECs 2020-U244, 2020-U251 & 2020-U252 -- P/2020 U2, C/2020 T5, C/2020 S8
`Q621`	Hidetaka Sato in Japan via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-U243 -- P/2020 S7
`C401`	program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-U248 -- 159402
`304`	Las Campanas Obs. in Chile, 1 in MPEC 2020-U241 -- C/2014 OG392
`L52`	MASTER Tavrida, 1 in MPEC 2020-U248 -- 2013 PY6
`568`	Mauna Kea in Hawaii, 1 in MPEC 2020-U248 -- 2018 DL3
`568^`	R. Wainscoat on Mauna Kea in Hawaii, 1 in MPEC 2020-U243 -- P/2020 S7
`711`	McDonald Obs. in Texas, 3 in MPECs 2020-U243, 2020-U244 & 2020-U251 -- C/2020 T5, C/2020 S8, P/2020 S7
`V01`	Mountainville Obs. in Utah, 1 in MPEC 2020-U253 -- 2020 UM6
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 22 in MPECs 2020-U242, 2020-U243, 2020-U244, 2020-U245, 2020-U247, 2020-U248, 2020-U249, 2020-U250, 2020-U251 & 2020-U252 -- 2020 UL6, 2020 UK6, 2020 UJ6, 2020 UG6, 2020 UF6, 2020 UE6, P/2020 U2, 2020 TY, 2020 TQ1, 2020 TM, C/2020 T5, 2020 SP2, 2020 SK2, C/2020 S8, P/2020 S7, 2020 RU7, 2020 RT3, 2020 RJ3, 2019 RY, 2018 GV5, 2014 EY66, 2013 SM20
`K74`	Muensterschwarzach Obs. in Germany, 1 in MPEC 2020-U253 -- 2020 UM6
`J69`	North Obs. in England, 3 in MPECs 2020-U248 & 2020-U253 -- 2020 UM6, 2020 TR5, 2020 TD8
`Z80`	Northolt Branch Obs. in England, 4 in MPECs 2020-U248 & 2020-U253 -- 2020 UM6, 2020 UJ3, 2020 TR5, 2020 TD8
`F51`	Pan-STARRS 1 (PS1) in Hawaii, 30 in MPECs 2020-U241, 2020-U243, 2020-U244, 2020-U246, 2020-U248, 2020-U251 & 2020-U252 -- 2020 UH6, P/2020 U2, 2020 TP3, 2020 TN6, 2020 TG4, C/2020 T5, 2020 SX2, 2020 SV6, 2020 SR7, C/2020 S8, P/2020 S7, 2020 RV3, 2020 RO9, 2020 QM4, 2017 VT12, 2017 ST20, 2017 GO6, 2016 FY14, C/2014 OG392, 2014 EY66, 2012 US9, 2011 BF59, 2009 UM, 2007 TE66, 2007 SR1, 2000 PQ27, 523804, 162210, 112221, 8037
`F52`	Pan-STARRS 2 (PS2) in Hawaii, 31 in MPECs 2020-U241, 2020-U242, 2020-U243, 2020-U244, 2020-U247, 2020-U248 & 2020-U252 -- 2020 UQ2, 2020 UJ6, 2020 UF6, 2020 UF, P/2020 U2, 2020 TG4, 2020 TC1, 2020 SR6, C/2020 S8, P/2020 S7, 2020 QM4, 2020 OG4, 2017 VT12, 2017 GO6, 2016 TL18, 2016 CN246, 2014 WG365, C/2014 OG392, 2014 LQ26, 2014 EY66, 2013 VZ9, 2012 US9, 2010 TU5, 2007 UY1, 2007 TE66, 2007 SR1, 2006 UE17, 2005 SH26, 2002 TS67, 2000 TU28, 10115
`B49`	Paus Obs. in Spain, 5 in MPECs 2020-U242, 2020-U248 & 2020-U253 -- 2020 UN1, 2020 UM6, 2020 UF6, 2020 TR5, 2020 TD8
`6581`	Dave Balam via Plaskett 1.8m Telescope in British Columbia, 1 in MPEC 2020-U251 -- C/2020 T5
`D29`	Purple Mtn. Obs. Xuyi Station in China, 2 in MPECs 2020-U241 & 2020-U243 -- P/2020 S7, C/2014 OG392
`L18`	QOS Obs., 1 in MPEC 2020-U248 -- 159402
`L04`	ROASTERR-1 in Romania, 2 in MPECs 2020-U248 & 2020-U253 -- 2020 UM6, 2004 US1
`L07`	Salvatore di Giacomo Obs., 1 in MPEC 2020-U251 -- C/2020 T5
`C95`	SATINO-1 in France, 1 in MPEC 2020-U248 -- 2008 UU95
`204`	Schiaparelli Obs. in Italy, 28 in MPECs 2020-U248 & 2020-U251 -- 2020 TO2, 2020 TD2, C/2020 T5, 2020 SO, 2020 QE4, 2020 PU1, 2020 PT2, 2020 OX6, 2020 NF, 2020 MZ3, 2020 LR, 2020 LJ2, 2019 NC1, 2017 HN3, 2013 UX14, 2011 UR91, 2008 TY9, 90147, 87311, 85275, 66391, 442037, 280136, 138847, 11405, 8566, 3752, 1865
`W88*`	program code "*" (19) via Slooh.com Chile Obs. in Chile, 1 in MPEC 2020-U248 -- 2020 RV5
`Q21`	Southern Utsunomiya in Japan, 1 in MPEC 2020-U248 -- 162173
`291`	Spacewatch 1.8m telescope in Arizona, 3 in MPEC 2020-U248 -- 2017 QD3, 2012 TC4, 2008 QU3
`I52`	Steward Obs. Mt. Lemmon Station in Arizona, 33 in MPECs 2020-U243, 2020-U244, 2020-U245, 2020-U247, 2020-U248, 2020-U249, 2020-U251 & 2020-U253 -- 2020 UZ5, 2020 UZ, 2020 UX3, 2020 UW1, 2020 UQ2, 2020 UN5, 2020 UN3, 2020 UN1, 2020 UM6, 2020 UM5, 2020 UL3, 2020 UK6, 2020 UJ6, 2020 UG6, 2020 UG4, 2020 UF, 2020 UC5, 2020 UB5, 2020 UB2, 2020 UA3, 2020 TY1, 2020 TU3, 2020 TQ7, 2020 TQ1, 2020 TM4, C/2020 T5, C/2020 S8, P/2020 S7, 2020 RY4, 2020 RX6, 2020 RW2, 2020 RO9, 2020 KU3
`A71`	Stixendorf Obs. in Austria, 1 in MPEC 2020-U243 -- P/2020 S7
`858`	Tebbutt Obs. in New Mexico, 1 in MPEC 2020-U251 -- C/2020 T5
`T12`	UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-U248 -- 2020 RD10
`L01`	Visnjan Obs. in Croatia, 5 in MPECs 2020-U243, 2020-U244, 2020-U251, 2020-U252 & 2020-U253 -- 2020 UM6, P/2020 U2, C/2020 T5, C/2020 S8, P/2020 S7
`718`	Wiggins Obs. in Utah, 1 in MPEC 2020-U253 -- 2020 UM6
`C51`	WISE in Earth polar orbit, 3 in MPEC 2020-U248 -- 2020 UF2, 2013 GY7, 36284

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

Impact Risk Monitoring on 27 October '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 UX4	NEODyS	1730	2074-2120	32	3.44e-05	-5.02	-5.34	n/a	NEODyS: "Based on 40 optical observations (of which 1 are rejected as outliers) from 2020-10-22.185 to 2020-10-26.960."
2020 UX4	JPL Sentry	1700	2074-2120	17	2.2902118e-05	-5.18	-5.56	0	JPL: Computed at 07:59 today Pacific time based on 40 observations spanning 4.7756 days (2020-Oct-22.18386 to 2020-Oct-26.959452). Diameter approximately 0.026 km. from weighted mean H=25.56.

2020 UO4	NEODyS	1730	2088-2120	59	1.55e-03	-5.02	-5.27	n/a	NEODyS: "Based on 55 optical observations (of which 1 are rejected as outliers) from 2020-10-23.355 to 2020-10-26.906."
2020 UO4	JPL Sentry	1700	2088-2120	37	0.0005535292892	-5.46	-5.62	0	JPL: Computed at 08:14 today Pacific time based on 55 observations spanning 3.5506 days (2020-Oct-23.354363 to 2020-Oct-26.904919). Diameter approximately 0.006 km. from weighted mean H=28.62.

2020 UC4	NEODyS	1730	2084-2120	8	1.16e-06	-6.83	-7.22	n/a	NEODyS: "Based on 28 optical observations (of which 0 are rejected as outliers) from 2020-10-22.343 to 2020-10-27.015."
2020 UC4	JPL Sentry	1700	2084-2118	2	2.7567e-07	-7.32	-7.45	0	JPL: Computed at 08:09 today Pacific time based on 28 observations spanning 4.6723 days (2020-Oct-22.341905 to 2020-Oct-27.014234). Diameter approximately 0.021 km. from weighted mean H=26.04.

2020 UL3	NEODyS	1730	2111-2120	16	3.45e-06	-4.94	-5.36	n/a	NEODyS: "Based on 33 optical observations (of which 1 are rejected as outliers) from 2020-10-17.537 to 2020-10-27.328."
2020 UL3	JPL Sentry	1700	2111-2118	6	2.26913e-06	-5.12	-5.39	0	JPL: Computed at 08:01 today Pacific time based on 33 observations spanning 9.7913 days (2020-Oct-17.535831 to 2020-Oct-27.3271). Diameter approximately 0.078 km. from weighted mean H=23.20.

2020 UA3	NEODyS	1730	2093	1	8.4e-11	-11.26	-11.26	0	NEODyS: "Based on 17 optical observations (of which 0 are rejected as outliers) from 2020-10-15.583 to 2020-10-27.276."

2020 TD8	NEODyS	1730	2045-2096	21	4.35e-06	-6.41	-6.76	0	NEODyS: "Based on 73 optical observations (of which 0 are rejected as outliers) from 2020-10-15.323 to 2020-10-27.036."
2020 TD8	JPL Sentry	1700	2045-2096	13	3.44688e-06	-6.42	-6.77	0	JPL: Computed at 08:04 today Pacific time based on 73 observations spanning 11.713 days (2020-Oct-15.322434 to 2020-Oct-27.035254). Diameter approximately 0.014 km. from weighted mean H=26.93.

2020 TO2	NEODyS	1730	2119	3	6.37e-06	-6.22	-6.44	0	NEODyS: "Based on 31 optical observations (of which 2 are rejected as outliers) from 2020-10-10.467 to 2020-10-13.463."
2020 TO2	JPL Sentry	1700	2119-2119	2	6.156e-06	-6.22	-6.42	0	JPL: Computed at 07:58 today Pacific time based on 29 observations spanning 2.9960 days (2020-Oct-10.466226 to 2020-Oct-13.462263). Diameter approximately 0.017 km. from weighted mean H=26.53.

2020 TY1	NEODyS	1730	2092-2120	6	3.31e-07	-5.60	-5.83	n/a	NEODyS: "Based on 83 optical observations (of which 0 are rejected as outliers) from 2020-10-08.411 to 2020-10-27.294."
2020 TY1	JPL Sentry	1700	2098-2113	3	2.3916e-07	-5.71	-5.98	0	JPL: Computed at 07:57 today Pacific time based on 83 observations spanning 18.883 days (2020-Oct-08.410259 to 2020-Oct-27.293035). Diameter approximately 0.100 km. from weighted mean H=22.63.

2020 RD10	NEODyS	1730	R E M O V E D						-

2020 PT2	JPL Sentry	1700	R E M O V E D						JPL: Risk listing removed at 1435 UTC today

2020 PU1	NEODyS	1730	2047-2117	8	2.16e-06	-6.49	-6.83	0	NEODyS: "Based on 30 optical observations (of which 0 are rejected as outliers) from 2020-08-12.506 to 2020-08-18.110."
2020 PU1	JPL Sentry	1700	2047-2070	3	1.4894e-06	-6.59	-6.95	0	JPL: Computed at 07:39 today Pacific time based on 30 observations spanning 5.6038 days (2020-Aug-12.505525 to 2020-Aug-18.10933). Diameter approximately 0.017 km. from weighted mean H=26.49.

2017 UL6	JPL Sentry	1700	2058-2106	23	4.703432e-05	-7.85	-8.37	0	JPL: Computed at 21:11 Oct. 27th of 2017 Pacific time based on 15 observations spanning .77410 days (2017-Oct-27.2341 to 2017-Oct-28.008202). Diameter approximately 0.001 km. from weighted mean H=32.03.

2014 HR197	JPL Sentry	1700	2020-2112	191	7.54159e-08	-7.08	-8.01	0	JPL: Computed at 10:48 April 9th of 2017 Pacific time based on 15 observations spanning .95899 days (2014-Apr-24.15618 to 2014-Apr-25.11517). Diameter approximately 0.014 km. from weighted mean H=26.94.

2011 KF36	JPL Sentry	1700	2022-2106	6	9.922e-10	-5.69	-6.09	0	JPL: Computed at 09:46 April 8th of 2017 Pacific time based on 9 observations spanning 2.0159 days (2011-May-30.340411 to 2011-Jun-01.356316). Diameter approximately 0.280 km. from weighted mean H=20.43.

2007 UT3	JPL Sentry	1700	2054-2116	8	5.073134e-07	-6.75	-7.12	0	JPL: Computed at 02:12 April 8th of 2017 Pacific time based on 18 observations spanning 4.3683 days (2007-Oct-19.2989 to 2007-Oct-23.66722). Diameter approximately 0.024 km. from weighted mean H=25.72.

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 27 October '20

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

2201	Grabbed MPEC 2020-U253 - 2020 UM6 - see above
1905	Grabbed MPEC 2020-U252 - Comet P/2020 U2 (Panstarrs) - see above
1730	Noted that NEODyS has updated its 2020 PU1 risk assessment - see above Noted that NEODyS has removed 2020 RD10 as an impact risk - see above Noted that NEODyS has updated its 2020 TD8 risk assessment - see above Noted that NEODyS has updated its 2020 TO2 risk assessment - see above Noted that NEODyS has updated its 2020 TY1 risk assessment - see above Noted that NEODyS has updated its 2020 UA3 risk assessment - see above Noted that NEODyS has updated its 2020 UC4 risk assessment - see above Noted that NEODyS has updated its 2020 UL3 risk assessment - see above Noted that NEODyS has updated its 2020 UO4 risk assessment - see above Noted that NEODyS has posted 2020 UX4 as an impact risk - see above
1700	Noted that JPL Sentry has updated its 2007 UT3 risk assessment - see above Noted that JPL Sentry has updated its 2011 KF36 risk assessment - see above Noted that JPL Sentry has updated its 2014 HR197 risk assessment - see above Noted that JPL Sentry has updated its 2017 UL6 risk assessment - see above Noted that JPL Sentry has removed 2020 PT2 as an impact risk - see above Noted that JPL Sentry has updated its 2020 PU1 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 TO2 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 UC4 risk assessment - see above Noted that JPL Sentry has updated its 2020 UL3 risk assessment - see above Noted that JPL Sentry has updated its 2020 UO4 risk assessment - see above Noted that JPL Sentry has updated its 2020 UX4 risk assessment - see above Grabbed MPEC 2020-U245 - 2020 UG6 - see above Grabbed MPEC 2020-U246 - 2020 UH6 - see above Grabbed MPEC 2020-U247 - 2020 UJ6 - see above Grabbed MPEC 2020-U248 - Daily Orbit Update - see above Grabbed MPEC 2020-U249 - 2020 UK6 - see above Grabbed MPEC 2020-U250 - 2020 UL6 - see above Grabbed MPEC 2020-U251 - Comet C/2020 T5 (Lemmon) - see above
0521	Grabbed MPEC 2020-U244 - Comet C/2020 S8 (Lemmon) - see above
0500	Grabbed MPEC 2020-U243 - Comet P/2020 S7 (Panstarrs) - see above
0405	Grabbed MPEC 2020-U241 - Comet C/2014 OG392 (Panstarrs) - see above Grabbed MPEC 2020-U242 - 2020 UF6 - see above

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