2020-10-20 Tracking News

Contents on 20 October '20

IAU Minor Planet Center
- NEOCP Activity -- 87 listings
- New MPECs -- fourteen MPECs
Observers -- 38 observers
Impact Risk Monitoring -- 20 objects
Chronology

Asteroid/Comet Connection (A/CC) Resources:

Consolidated Risk Tables - the CRT page
Of 1201 risk-listed objects, 195 have had news in the last 31 days. Updated at 2233 UTC on 20 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 20 October '20

The MPC's NEO Confirmation Page has 87 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 87 objects listed. Of these, 44 were "one nighters." So far The Tracking News has counted a total of 110 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 20 October '20

Minor Planet Electronic Circulars

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

MPEC 2020-U129 time-stamped "01:21 UT" - 2020 UD2 - see below
MPEC 2020-U130 time-stamped "02:28 UT" - 2020 UE2 - see below
MPEC 2020-U131 time-stamped "02:29 UT" - 2020 UF2 - see below
MPEC 2020-U132 time-stamped "12:46 UT" - Daily Orbit Update - see below
MPEC 2020-U133 time-stamped "16:05 UT" - 2000 CN33 - see below
MPEC 2020-U134 time-stamped "16:19 UT" - 2020 UG2 - see below
MPEC 2020-U135 time-stamped "16:31 UT" - 2020 UH2 - see below
MPEC 2020-U136 time-stamped "16:33 UT" - 2015 UW67 - see below
MPEC 2020-U137 time-stamped "16:37 UT" - 2020 TR8 - see below
MPEC 2020-U138 time-stamped "17:54 UT" - 2006 HY5 - see below
MPEC 2020-U139 time-stamped "18:56 UT" - 2020 UJ2 - see below
MPEC 2020-U140 time-stamped "18:58 UT" - 2020 UK2 - see below
MPEC 2020-U141 time-stamped "19:00 UT" - 2020 UL2 - see below
MPEC 2020-U142 time-stamped "19:02 UT" - 2020 UM2

MPEC 2020-U142 - "19:02 UT" - 2020 UM2

K20U02M 2020 UM2 (small asteroid, Earth MOID=10.0 LD, H=27.1 ~13m) was picked up at 1134 UT on 19 Oct. by Pan-STARRS 1 (PS1), observing it at Oct. 19.48-51p3 and 20.42-43p2. This detection was confirmed by Visnjan Obs. (Oct. 19.82-84p3 & 20.02-03p3), Steward Obs. Mt. Lemmon Station (Oct. 20.27-28p4), Jana Pittichova Chesley via Table Mtn. Obs. (Oct. 20.35-37p2), and R. Wainscoat on Mauna Kea (Oct. 20.51-52p3).

MPEC 2020-U141 - "19:00 UT" - 2020 UL2

K20U02L 2020 UL2 (Earth MOID=0.9 LD, H=28.7 ~6m) was picked up at 0432 UT on 19 Oct. by the Mt. Lemmon Survey (MLS), observing it at Oct. 18.16-18p3, 19.19-24p6, and 20.18p3.

MPEC 2020-U140 - "18:58 UT" - 2020 UK2

K20U02K 2020 UK2 (risk listed, Earth MOID=0.0 LD, H=27.0 ~13m, close passer) was picked up at 0626 UT on 20 Oct. by the Catalina Sky Survey (CSS), observing it at Oct. 18.18-20p2 and 20.27-28p3. This detection was confirmed by Steward Mt. Lemmon Sta. (Oct. 20.35p4 & 20.48p4).

MPEC 2020-U139 - "18:56 UT" - 2020 UJ2

K20U02J 2020 UJ2 (small asteroid, Q=4.104 AU, H=23.7 ~62m) was picked up at 1305 UT on 18 Oct. by PS1, observing it at Oct. 18.55-58p3. This detection was confirmed by MLS (Oct. 17.41-43p2), Visnjan Obs. (Oct. 19.10-11p4), and Steward Mt. Lemmon Sta. (Oct. 20.38-41p3).

MPEC 2020-U138 - "17:54 UT" - 2006 HY5

K06H05Y 2006 HY5 (i=36.1°, H=20.3 ~295m) from PS1 (Oct. 3.54-55p2, 15.48-53p3 & 20.39-43p3) and Pan-STARRS 2 (PS2) (Oct. 5.54-55p2)

MPEC 2020-U137 - "16:37 UT" - 2020 TR8

K20T08R 2020 TR8 (Q=4.660 AU, Earth MOID=0.5 LD, H=25.9 ~22m) was picked up at 0959 UT on 14 Oct. by PS1, observing it at Oct. 14.42-45p3 and 15.47-52p3. This detection was confirmed by R. Wainscoat/Mauna Kea (Oct. 20.30p3 at G=22.75-23.06).

MPEC 2020-U136 - "16:33 UT" - 2015 UW67

K15U67W 2015 UW67 (small asteroid, H=22.8 ~93m) from PS1 (2010 Oct. 18.30-31p2 at G=18.52-60, 2010 Oct. 22.42-43p2 at G=18.68-19.03, 2010 Nov. 16.32-33p2 at G=20.65-91, 2015 June 7.34-36p2 at G=22.73-86, 2015 June 8.33-35p4 at G=22.01-99, 2015 Aug. 12.26-27p3 at G=21.75-22.43, May 21.41-43p3 at G=22.35-79, 23.37-38p2 at G=22.07-65, 25.41-42p2 at G=22.57-79, June 14.29-30p2 at G=21.88-22.14 & 14.35-36p2 at G=21.84-22.01), MLS (2010 Nov. 15.27-29p4), and Pleasant Groves Obs. (Oct. 20.35-37p3)

MPEC 2020-U135 - "16:31 UT" - 2020 UH2

K20U02H 2020 UH2 (small asteroid, H=23.4 ~71m) was picked up at 0731 UT on 16 Oct. by PS1, observing it at Oct. 16.31-34p4 at w=21.54-22.52. This detection was confirmed by R. Wainscoat/Mauna Kea (Oct. 17.28-29p3 at G=21.84-99 & 20.29-30p3 at G=21.98-22.20).

MPEC 2020-U134 - "16:19 UT" - 2020 UG2

K20U02G 2020 UG2 (Q=4.025 AU, H=21.6 ~162m) was picked up at 0813 UT on 17 Oct. by PS1, observing it at Oct. 17.34-38p4. This detection was confirmed by R. Wainscoat/Mauna Kea (Oct. 18.38p3), Mt. John Obs. (Oct. 19.51-52p3 & 20.50p3), and Steward Mt. Lemmon Sta. (Oct. 20.26-28p4).

MPEC 2020-U133 - "16:05 UT" - 2000 CN33

K00C33N 2000 CN33 (Q=4.128 AU, H=19.4 ~446m) from PS1 (2017 March 29.59-61p3 at G=22.92-23.16, 2017 April 27.54-57p4 at G=21.97-23.22 & 2017 May 30.49-50p2 at G=22.91-23.37), PS2 (Aug. 26.57p1 at G=22.21, Sept. 18.62p1 at G=21.45 & 27.62p1 at G=22.66), MLS (Oct. 20.46-48p3), and Steward Mt. Lemmon Sta. (Oct. 20.49-50p4)

<< DOU on 20 October '20 >> MPEC 2020-U132 - "12:46 UT" - Daily Orbit Update

Observations of risk-listed objects
K20U00Y 2020 UY (small asteroid, arc=2 days, H=29.0 ~5m, close passer, NHATS target) from JPL SynTrack Robotic Telescope (Oct. 19.21p2 & 19.26p2)
K20U00J 2020 UJ (small asteroid, arc=10 days, H=24.1 ~51m) from Steward Mt. Lemmon Sta. (Oct. 20.15-16p4)
K20U00H 2020 UH (small asteroid, arc=5 days, H=24.4 ~45m) from Steward Mt. Lemmon Sta. (Oct. 20.15p4)
K20U00E 2020 UE (small asteroid, arc=5 days, H=25.6 ~26m, close passer) from ATLAS Mauna Loa (Oct. 19.39-42p4), Purple Mtn. Obs. Xuyi Station (Oct. 19.55-58p3), Galhassin Robotic Telescope (Oct. 19.83p1 & 19.88-92p2), Mirasteilas Obs. (Oct. 19.90-91p3), Guidestar Obs. (Oct. 19.92-93p2), Steward Mt. Lemmon Sta. (Oct. 20.19-20p4), and CSS (Oct. 20.24-26p4)
K20U00A 2020 UA (small asteroid, arc=3 days, H=28.4 ~7m, close passer, NHATS target) from M. Kumrucu-Lohmiller via Slooh.com Chile Obs. (Oct. 19.26-27p3), PS1 (Oct. 19.49-51p3), Rokycany Obs. (Oct. 19.82p4), Galhassin RT (Oct. 19.84p1, 19.90p1 & 19.94p1), Transit Dreams Obs. (Oct. 20.08-09p6), CSS (Oct. 20.29-31p4), ATLAS Haleakala (Oct. 20.34-39p4), and iTelescope Obs. Mayhill (Oct. 20.41p3)
K20T05K 2020 TK5 (small asteroid, q=0.350 AU, arc=6 days, H=23.5 ~68m) from Rokycany Obs. (Oct. 19.87p3), Guidestar Obs. (Oct. 20.00-02p3), and Steward Mt. Lemmon Sta. (Oct. 20.23p4)
K20T04Y 2020 TY4 (small asteroid, arc=7 days, H=24.0 ~54m) from Steward Mt. Lemmon Sta. (Oct. 20.16-17p3)
K20T04S 2020 TS4 (small asteroid, arc=6 days, H=27.9 ~9m, close passer, NHATS target) from PS1 (Oct. 19.48-52p3) and Steward Mt. Lemmon Sta. (Oct. 20.29-30p4)
K20T03J 2020 TJ3 (small asteroid, arc=9 days, H=24.6 ~41m, NHATS target) from Steward Mt. Lemmon Sta. (Oct. 20.12-15p4)
Observations of recently (no longer) risk-listed objects
K20T02X 2020 TX2 (Q=4.173 AU, arc=40 days, H=20.8 ~234m) from MLS (Oct. 19.19-21p4 at G=20.82-22.04)
K20T02R 2020 TR2 (small asteroid, Q=4.221 AU, arc=10 days, H=24.0 ~54m, close passer) from the Zwicky Transient Facility (ZTF) (Oct. 19.31-35p4)
K20T00F 2020 TF (arc=15 days, H=21.6 ~162m) from Steward Mt. Lemmon Sta. (Oct. 20.18-19p4)
Observations of close-passing objects
K20U02D 2020 UD2 (arc=6 days, H=24.9 ~35m) from Steward Mt. Lemmon Sta. (Oct. 20.37p4)
K20U01A 2020 UA1 (arc=2 days, H=24.2 ~49m) from Rokycany Obs. (Oct. 19.83p3), Foxfire Village Obs. (Oct. 20.03-04p3), and Steward Mt. Lemmon Sta. (Oct. 20.19p4)
K20U00V 2020 UV (arc=3 days, H=27.3 ~12m) from Steward Mt. Lemmon Sta. (Oct. 20.23p4) and ATLAS Haleakala (Oct. 20.38-41p4)
K20U00S 2020 US (arc=4 days, H=27.3 ~12m) from Steward Mt. Lemmon Sta. (Oct. 20.15p4)
K20U00G 2020 UG (arc=4 days, H=26.7 ~15m) from Steward Mt. Lemmon Sta. (Oct. 20.18p4)
K20T07M 2020 TM7 (Q=4.224 AU, arc=5 days, H=25.5 ~27m) from Steward Mt. Lemmon Sta. (Oct. 20.24-25p4)
K20T06M 2020 TM6 (arc=8 days, H=26.2 ~19m, NHATS target) from Castelmartini Obs. (Oct. 18.92-93p3)
K20T06K 2020 TK6 (arc=6 days, H=26.3 ~19m, NHATS target) from Steward Mt. Lemmon Sta. (Oct. 20.29-30p4)
K20T06D 2020 TD6 (arc=5 days, H=28.3 ~7m, NHATS target) from Steward Mt. Lemmon Sta. (Oct. 20.32p4)
K20T05T 2020 TT5 (arc=9 days, H=27.0 ~13m, NHATS target) from Transit Dreams Obs. (Oct. 20.04-05p3) and Steward Mt. Lemmon Sta. (Oct. 20.18-19p4)
K20T04K 2020 TK4 (arc=8 days, H=26.5 ~17m, NHATS target) from Steward Mt. Lemmon Sta. (Oct. 20.21p4)
K20T02D 2020 TD2 (Q=4.141 AU, arc=10 days, H=25.5 ~27m) from PS1 (Oct. 19.48-52p4)
K18X00A 2018 XA (Q=4.352 AU, arc=33 days, H=23.7 ~62m) from the Spacewatch 1.8m telescope (2018 Dec. 19.30-34p2)
K01SS6G 2001 SG286 (arc=6 opp, H=21.0 ~214m) from SATINO-1 (Oct. 18.78-81p2), CSS (Oct. 19.21-22p4), and ATLAS Mauna Loa (Oct. 19.37-41p7)
Observation campaigns (NHATS targets, radar support)
K20U01R 2020 UR1 (arc=4 days, H=25.4 ~28m, NHATS) from Tebbutt Obs. (Oct. 19.24-28p3) and Steward Mt. Lemmon Sta. (Oct. 19.47-48p3)
K20T06W 2020 TW6 (arc=5 days, H=25.7 ~25m, NHATS) from Steward Mt. Lemmon Sta. (Oct. 20.46p3)
K20T03M 2020 TM3 (arc=10 days, H=25.2 ~31m, NHATS) from Steward Mt. Lemmon Sta. (Oct. 20.23-24p4)
K20T02Z 2020 TZ2 (arc=10 days, H=24.2 ~49m, NHATS) from Steward Mt. Lemmon Sta. (Oct. 20.37-38p3)
K07U01Y 2007 UY1 (arc=3 opp, H=22.9 ~89m, NHATS) from ATLAS Mauna Loa (Oct. 19.47-48p4)
K07T66E 2007 TE66 (arc=4 opp, H=21.5 ~170m, NHATS) from Visnjan Obs. (Oct. 19.99-01p5)
03200 3200 Phaethon (1983 TB) (radar) from MLS (Oct. 19.48-50p4), ATLAS Mauna Loa (Oct. 19.59-62p8), and Xuyi Sta. (Oct. 19.83-85p3)
-- NHATS target table -- Planetary radar schedules: Arecibo & Goldstone
Observations of small (H>22.0) & smallish (21.7<H<=22.0) asteroids
K20U02B 2020 UB2 (Q=4.777 AU, arc=2 days, H=22.5 ~107m) from PS1 (Oct. 19.49-52p4)
K20U01Q 2020 UQ1 (i=44.2°, arc=5 days, H=22.8 ~93m) from Guidestar Obs. (Oct. 20.06-09p3)
K20U01P 2020 UP1 (arc=4 days, H=25.6 ~26m) from Steward Mt. Lemmon Sta. (Oct. 20.20-21p4)
K20U01E 2020 UE1 (arc=5 days, H=25.8 ~23m) from Steward Mt. Lemmon Sta. (Oct. 20.48p4)
K20U01D 2020 UD1 (arc=4 days, H=25.3 ~29m) from Steward Mt. Lemmon Sta. (Oct. 20.19-20p4)
K20U01C 2020 UC1 (arc=4 days, H=24.8 ~37m) from Steward Mt. Lemmon Sta. (Oct. 20.19p4)
K20U00W 2020 UW (arc=3 days, H=27.3 ~12m) from Steward Mt. Lemmon Sta. (Oct. 20.22p3)
K20U00D 2020 UD (arc=11 days, H=22.9 ~89m) from PS1 (Oct. 19.49-51p3)
K20T07H 2020 TH7 (Q=4.386 AU, arc=5 days, H=25.0 ~34m) from Steward Mt. Lemmon Sta. (Oct. 20.23p4)
K20T06Z 2020 TZ6 (Q=4.624 AU, arc=8 days, H=23.8 ~59m) from Steward Mt. Lemmon Sta. (Oct. 20.18p3)
K20T03W 2020 TW3 (arc=8 days, H=22.6 ~102m) from ATLAS Mauna Loa (Oct. 19.49-50p4) and Rokycany Obs. (Oct. 19.84p3)
K20T01X 2020 TX1 (arc=12 days, H=26.0 ~21m) from Steward Mt. Lemmon Sta. (Oct. 20.36-37p4)
K20S07R 2020 SR7 (arc=23 days, H=22.1 ~129m) from CSS (Oct. 19.21-22p3), ATLAS Mauna Loa (Oct. 19.37-41p4), and Guidestar Obs. (Oct. 19.87-90p3)
K20S02S 2020 SS2 (arc=31 days, H=22.7 ~98m) from MLS (Oct. 19.19-21p4)
K20R06M 2020 RM6 (Q=4.245 AU, arc=40 days, H=24.9 ~35m) from ATLAS Mauna Loa (Oct. 19.47-48p4) and Guidestar Obs. (Oct. 20.03-05p3)
K20R05V 2020 RV5 (arc=68 days, H=23.8 ~59m) from Castelmartini Obs. (Oct. 18.91-92p3)
K20R04P 2020 RP4 (arc=40 days, H=23.6 ~65m) from CSS (Oct. 19.23-24p3)
K20R03X 2020 RX3 (Q=4.399 AU, arc=39 days, H=22.4 ~112m) from Xuyi Sta. (Oct. 19.56-58p3)
K20Q04E 2020 QE4 (arc=61 days, H=23.8 ~59m) from PS1 (Oct. 19.49-52p3)
K20Q03P 2020 QP3 (arc=62 days, H=22.7 ~98m) from ATLAS Mauna Loa (Oct. 19.37-38p4)
K20O07K 2020 OK7 (arc=82 days, H=21.8 ~148m) from Steward Mt. Lemmon Sta. (Oct. 20.19-22p4)
Observations of other objects
K20U01V 2020 UV1 (arc=3 days, H=20.3 ~295m) from the Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) (Oct. 19.49-50p2)
K20T07A 2020 TA7 (i=41.8°, arc=5 days, H=21.7 ~155m) from Steward Mt. Lemmon Sta. (Oct. 20.18p4)
K20T06N 2020 TN6 (arc=6 days, H=19.1 ~513m) from Steward Mt. Lemmon Sta. (Oct. 19.49-50p4 at G=20.77-21.59 & 20.36p4 at G=20.90-22.57)
K20T05H 2020 TH5 (arc=7 days, H=21.1 ~204m) from Steward Mt. Lemmon Sta. (Oct. 20.47p4 at G=20.54-22.47)
K20T01C 2020 TC1 (arc=11 days, H=20.8 ~234m) from ZTF (Oct. 17.23-27p4)
K20S00B 2020 SB (Q=0.988 AU, arc=33 days, H=20.3 ~295m) from Xuyi Sta. (Oct. 19.46-47p2)
K20R09O 2020 RO9 (Q=4.223 AU, arc=36 days, H=18.5 ~676m) from PS1 (Oct. 19.60-63p4)
K20R00G 2020 RG (arc=53 days, H=20.9 ~224m) from MLS (Oct. 19.29-31p4)
K20R00E 2020 RE (arc=54 days, H=20.3 ~295m) from MLS (Oct. 19.19-21p4)
K20Q06U 2020 QU6 (arc=54 days, H=18.2 ~776m) from Dettelbach Vineyard Obs. (Oct. 19.74-75p3)
K20Q06Q 2020 QQ6 (Q=4.107 AU, arc=67 days, H=19.7 ~389m) from ATLAS Mauna Loa (Oct. 19.36-38p4)
K20Q04M 2020 QM4 (arc=61 days, H=18.6 ~645m) from Guidestar Obs. (Oct. 19.80-82p3)
K20P07F 2020 PF7 (Q=5.014 AU, arc=72 days, H=18.7 ~616m) from Dettelbach Vineyard Obs. (Oct. 19.73-74p3)
K20P05C 2020 PC5 (Q=4.177 AU, arc=67 days, H=18.5 ~676m) from MASTER OAFA Obs. (Oct. 19.04p1 & 19.13p1) and Transit Dreams Obs. (Oct. 20.05p3)
K20P01D 2020 PD1 (Q=4.135 AU, arc=119 days, H=19.3 ~467m) from ZTF (Oct. 17.30p1, 17.39p1, 19.31p2 & 19.35p2), Castelmartini Obs. (Oct. 18.96p3), and PS2 (Oct. 19.42-45p3)
K20O08C 2020 OC8 (arc=126 days, H=20.7 ~245m) from MLS (Oct. 19.17-19p4)
K20O06X 2020 OX6 (arc=82 days, H=21.3 ~186m) from Steward Mt. Lemmon Sta. (Oct. 20.24-25p4)
K20O04G 2020 OG4 (arc=89 days, H=18.5 ~676m) from ATLAS Mauna Loa (Oct. 19.40-46p4) and Guidestar Obs. (Oct. 19.97-99p3)
K20H08P 2020 HP8 (arc=5 opp, H=20.2 ~309m) from Xuyi Sta. (Oct. 11.54-57p2)
K20D05B 2020 DB5 (arc=232 days, H=19.2 ~490m) from PS1 (Oct. 18.38-40p3)
K19A03Q 2019 AQ3 (i=47.2°, Q=0.774 AU, arc=3 opp, H=17.5 ~1.07 km) from ZTF (Oct. 19.52-54p5)
K18G04X 2018 GX4 (arc=4 opp, H=19.2 ~490m) from Guidestar Obs. (Oct. 20.15-18p3)
K17S20V 2017 SV20 (arc=5 opp, H=18.6 ~645m) from PS1 (Oct. 19.55-58p3)
K17S19E 2017 SE19 (arc=3 opp, H=19.8 ~371m) from PS2 (Oct. 19.43-45p3 & 19.53-54p2)
K17B05P 2017 BP5 (arc=2 opp, H=20.3 ~295m) from Spacewatch 1.8m (2018 Dec. 25.40p3)
K16V03G 2016 VG3 (arc=2 opp, H=20.7 ~245m) from PS1 (Oct. 19.49-51p3)
K16U00A 2016 UA (q=0.364 AU, arc=3 opp, H=20.8 ~234m) from MLS (Oct. 19.46-48p3) and PS2 (Oct. 19.60-62p3)
K16T93F 2016 TF93 (arc=4 opp, H=17.9 ~891m) from ZTF (Oct. 17.30p2 & 17.40p1)
K16T18L 2016 TL18 (arc=3 opp, H=21.5 ~170m) from PS2 (Oct. 19.48-52p3)
K16K01A 2016 KA1 (arc=2 opp, H=20.8 ~234m) from UH/Tholen NEO Follow-Up 2.24m Telescope (2019 Jan. 8.66p1 at G=24.38 & 2019 Jan. 10.65p1 at G=24.21)
K16E85D 2016 ED85 (Q=5.062 AU, arc=3 opp, H=17.7 ~977m) from CSS (Oct. 19.48-49p4) and Guidestar Obs. (Oct. 20.12-14p3)
K15B04F 2015 BF4 (arc=6 opp, H=20.4 ~282m) from PS2 (Oct. 19.57-59p4)
K13U14X 2013 UX14 (arc=4 opp, H=18.3 ~741m) from ZTF (Oct. 19.39-43p4) and ATLAS Mauna Loa (Oct. 19.50-52p4)
K13P06Y 2013 PY6 (arc=4 opp, H=19.3 ~467m) from Castelmartini Obs. (Oct. 18.95p3)
K11S32O 2011 SO32 (arc=3 opp, H=21.2 ~195m) from WISE (Oct. 17.63p1, 17.76p1, 17.82p1, 17.89p1, 17.95p1, 18.08p1 & 18.21p1)
K11G27O 2011 GO27 (arc=4 opp, H=19.0 ~537m) from WISE (Oct. 16.61p1, 16.74p1, 16.80p1, 16.93p1, 16.99p1, 17.06p1, 17.20p2 & 17.33p1), CSS (Oct. 19.46-47p4), MLS (Oct. 19.46-48p4), and Guidestar Obs. (Oct. 20.10p3)
K09J01K 2009 JK1 (arc=4 opp, H=19.7 ~389m) from PS2 (Oct. 19.49-51p3)
K07VD7X 2007 VX137 (arc=5 opp, H=18.5 ~676m) from Castelmartini Obs. (Oct. 18.91p3) and ATLAS Mauna Loa (Oct. 19.45-51p4)
K07T08G 2007 TG8 (Q=4.305 AU, arc=3 opp, H=18.6 ~645m) from CSS (Oct. 19.41-43p4)
K06S19S 2006 SS19 (Q=4.404 AU, arc=3 opp, H=18.9 ~562m) from ZTF (Oct. 17.21p1 & 17.30p1)
K06H00B 2006 HB (arc=4 opp, H=18.9 ~562m) from MLS (Oct. 19.19-21p4)
K05JA8T 2005 JT108 (arc=6 opp, H=19.4 ~446m) from CSS (Oct. 19.23-25p3)
K04U00B 2004 UB (arc=4 opp, H=20.4 ~282m) from ATLAS Mauna Loa (Oct. 19.50-53p4)
K04R84F 2004 RF84 (arc=4 opp, H=18.4 ~708m) from Dettelbach Vineyard Obs. (Oct. 19.76-77p3)
K04L03U 2004 LU3 (arc=5 opp, H=18.4 ~708m) from ATLAS Haleakala (Oct. 19.55-60p8)
K03O03A 2003 OA3 (arc=5 opp, H=19.6 ~407m) from MLS (Oct. 19.15-17p4)
K00P27Q 2000 PQ27 (arc=3 opp, H=20.0 ~339m) from ATLAS Mauna Loa (Oct. 19.39-45p5)
q3824 523824 2016 RO1 from CSS (Oct. 19.39-41p2) and MLS (Oct. 19.42-43p4)
q3633 523633 2009 XR2 from CSS (Oct. 19.51-52p2)
m8693 488693 2003 WW87 from CSS (Oct. 19.50-52p4)
m2718 482718 2013 ET9 from PS1 (Oct. 19.42-45p3)
m1394 481394 2006 SF6 from PS1 (Oct. 19.60-63p3)
j5192 455192 2000 QN130 from MLS (Oct. 19.48-50p4)
g0302 420302 2011 XZ1 from ATLAS Mauna Loa (Oct. 19.36-38p4) and Forti Obs. (Oct. 19.97p3)
f8416 418416 2008 LV16 from Xuyi Sta. (Oct. 19.85-86p2)
f5029 415029 2011 UL21 from ZTF (Oct. 19.37p1 & 19.43-47p3)
f4903 414903 2010 XT45 from Xuyi Sta. (Oct. 11.83-86p2) and ZTF (Oct. 17.36-38p2 & 19.37-41p2)
f4586 414586 2009 UV18 from PS2 (Oct. 19.48-52p4)
f3192 413192 2002 VY94 from ZTF (Oct. 19.52-54p4)
e7338 407338 2010 RQ30 from MLS (Oct. 19.22-23p3)
e4108 404108 2012 SF51 from PS2 (Oct. 19.34-35p2)
c2625 382625 2002 PC130 from ZTF (Oct. 15.19-22p2 & 17.20-24p2)
c0359 380359 2002 TN30 from ZTF (Oct. 19.39p2) and MLS (Oct. 19.41-43p4)
b8124 378124 2006 VT2 from PS1 (Oct. 19.43-46p3)
b6848 376848 2001 RY47 from CSS (Oct. 19.25p1)
Z4952 354952 2006 FJ9 from MLS (Oct. 19.19-21p4)
Z4663 354663 2005 LY19 from ZTF (Oct. 19.53-54p3)
W2763 322763 2001 FA7 from ZTF (Oct. 17.53p2 & 19.52-54p4)
V6695 316695 1996 TE9 from ZTF (Oct. 19.17p1 & 19.21p1)
U5090 305090 2007 VQ4 from CSS (Oct. 19.50-52p4)
U4293 304293 2006 SQ78 from PS2 (Oct. 19.49-52p4)
U3262 303262 2004 RJ84 from ATLAS Mauna Loa (Oct. 19.32-36p8)
S3729 283729 2002 UX from ZTF (Oct. 19.47-49p4)
P6412 256412 2007 BT2 from ZTF (Oct. 15.23-24p2, 15.34p2, 17.21p2, 17.27p1, 19.30p1 & 19.34p1)
P3106 253106 2002 UR3 from CSS (Oct. 19.48-50p3) and ATLAS Mauna Loa (Oct. 19.59-61p4)
K9924 209924 2005 WS55 from ZTF (Oct. 17.52-53p3 & 19.52-54p8)
J4126 194126 2001 SG276 from ATLAS Mauna Loa (Oct. 19.43-44p4)
J0208 190208 2006 AQ from CSS (Oct. 19.44-45p3) and ATLAS Mauna Loa (Oct. 19.58-60p7)
I5716 185716 1998 SF35 from ZTF (Oct. 19.37-42p4) and ATLAS Mauna Loa (Oct. 19.49-50p4)
G3902 163902 2003 SW222 from CSS (Oct. 19.35-36p3)
G3373 163373 2002 PZ39 from PS1 (Oct. 19.42-46p4)
G2911 162911 2001 LL5 from MLS (Oct. 19.46-48p4)
G2825 162825 2001 BO61 from PS1 (Oct. 19.49-51p3)
G2463 162463 2000 JH5 from ZTF (Oct. 17.52p1 & 19.52-53p3)
G2173 162173 Ryugu (1999 JU3) from Southern Utsunomiya (Oct. 18.49-52p7), Shinshiro Obs. (Oct. 18.58-59p3), CSS (Oct. 19.19-20p4), and ATLAS Mauna Loa (Oct. 19.32-36p8)
G2004 162004 1991 VE from MLS (Oct. 19.48-50p3)
F9402 159402 1999 AP10 from program code 1 via Kuban State Univ. Obs. (Oct. 19.65-71p10)
F4302 154302 2002 UQ3 from CSS (Oct. 19.27-29p4), AHS Obs. (Oct. 19.35-38p3), and ATLAS Mauna Loa (Oct. 19.40-44p4)
E5656 145656 4788 P-L from PS1 (Oct. 19.33-35p2)
E4411 144411 2004 EW9 from CSS (Oct. 19.30-31p4)
E3624 143624 2003 HM16 from PS2 (Oct. 19.43-45p3)
E2348 142348 2002 RX211 from MLS (Oct. 19.50-52p4)
E0333 140333 2001 TD2 from Castelmartini Obs. (Oct. 18.93-94p3), CSS (Oct. 19.25-27p4), and ATLAS Mauna Loa (Oct. 19.42-45p4)
D8175 138175 2000 EE104 from MLS (Oct. 19.48-50p3) and Xuyi Sta. (Oct. 19.84-85p2)
99935 99935 2002 AV4 from CSS (Oct. 19.50-52p3)
99799 99799 2002 LJ3 from MLS (Oct. 19.51-52p4 at G=21.12-22.09)
98943 98943 2001 CC21 from MLS (Oct. 19.48-50p4)
96744 96744 1999 OW3 from Castelmartini Obs. (Oct. 18.94p2) and Foxfire Village Obs. (Oct. 20.08p3)
90075 90075 2002 VU94 from BAS Obs. (Oct. 19.79p3)
89355 89355 2001 VS78 from ZTF (Oct. 19.46-50p2)
88264 88264 2001 KN20 from PS1 (Oct. 19.43-46p3)
87684 87684 2000 SY2 from ATLAS Haleakala (Oct. 19.51-54p4)
87311 87311 2000 QJ1 from MLS (Oct. 19.12-14p4)
85804 85804 1998 WQ5 from ZTF (Oct. 19.15-17p3 & 19.26-30p2) and ATLAS Mauna Loa (Oct. 19.30-33p4)
85709 85709 1998 SG36 from ZTF (Oct. 19.52-54p4)
69230 69230 Hermes (1937 UB) from MLS (Oct. 19.21-23p4)
68372 68372 2001 PM9 from PS2 (Oct. 19.57-59p3)
67367 67367 2000 LY27 from ZTF (Oct. 19.52-54p5)
66008 66008 1998 QH2 from MLS (Oct. 19.12-14p4)
65803 65803 Didymos (1996 GT) from MLS (Oct. 19.48-50p4) and Xuyi Sta. (Oct. 19.82-85p2)
65717 65717 1993 BX3 from Transit Dreams Obs. (Oct. 20.11-12p3)
65690 65690 1991 DG from ZTF (Oct. 17.22-25p2 & 19.17-21p2)
53435 53435 1999 VM40 from ATLAS Mauna Loa (Oct. 19.54-56p4)
33342 33342 1998 WT24 from MLS (Oct. 19.51-52p4)
31669 31669 1999 JT6 from ATLAS Mauna Loa (Oct. 19.62-64p4)
27031 27031 1998 RO4 from ATLAS Mauna Loa (Oct. 19.42-46p4) and Transit Dreams Obs. (Oct. 20.12p3)
27002 27002 1998 DV9 from ZTF (Oct. 15.24-27p3 & 15.34p1)
24761 24761 Ahau (1993 BW2) from ZTF (Oct. 19.52-54p5)
22753 22753 1998 WT from PS1 (Oct. 19.60-63p4)
21088 21088 Chelyabinsk (1992 BL2) from ZTF (Oct. 19.46-47p2), CSS (Oct. 19.48-50p4), and ATLAS Mauna Loa (Oct. 19.61-64p4)
16834 16834 1997 WU22 from CSS (Oct. 19.30-31p4), ATLAS Mauna Loa (Oct. 19.47-48p4), and Transit Dreams Obs. (Oct. 20.17-18p3)
15817 15817 Lucianotesi (1994 QC) from Forti Obs. (Oct. 19.88p3)
10115 10115 1992 SK from ATLAS Mauna Loa (Oct. 19.44-46p4) and Transit Dreams Obs. (Oct. 20.17p3)
09058 9058 1992 JB from Transit Dreams Obs. (Oct. 20.14p3)
08567 8567 1996 HW1 from ZTF (Oct. 19.48-51p2)
08037 8037 1993 HO1 from ATLAS Mauna Loa (Oct. 19.58-60p4)
08014 8014 1990 MF from ATLAS Mauna Loa (Oct. 19.49-50p3)
08013 8013 Gordonmoore (1990 KA) from PS2 (Oct. 19.48-52p4)
07350 7350 1993 VA from ZTF (Oct. 17.52-53p3 & 19.52p1)
06239 6239 Minos (1989 QF) from ATLAS Mauna Loa (Oct. 19.45-51p5) and Xuyi Sta. (Oct. 19.56-58p3)
05836 5836 1993 MF from ATLAS Mauna Loa (Oct. 19.52-54p4)
05131 5131 1990 BG from Xuyi Sta. (Oct. 19.83-86p3)
04953 4953 1990 MU from ATLAS Haleakala (Oct. 19.51-59p7)
04947 4947 Ninkasi (1988 TJ1) from Foxfire Village Obs. (Oct. 20.00-05p3)
04688 4688 1980 WF from ATLAS Mauna Loa (Oct. 19.36-38p4)
04486 4486 Mithra (1987 SB) from Transit Dreams Obs. (Oct. 20.13p3)
04450 4450 Pan (1987 SY) from ATLAS Mauna Loa (Oct. 19.42-51p8) and Xuyi Sta. (Oct. 19.55-58p3)
04055 4055 Magellan (1985 DO2) from ZTF (Oct. 19.36-40p6) and ATLAS Haleakala (Oct. 19.49-51p4)
03691 3691 Bede (1982 FT) from MLS (Oct. 19.15-16p4)
03671 3671 Dionysus (1984 KD) from PS2 (Oct. 19.49-53p4)
02368 2368 Beltrovata (1977 RA) from ATLAS Mauna Loa (Oct. 19.53-54p3)
02212 2212 Hephaistos (1978 SB) from ATLAS Mauna Loa (Oct. 19.41-43p4) and Transit Dreams Obs. (Oct. 20.06-07p3)
02201 2201 Oljato (1947 XC) from PS1 (Oct. 19.34-35p2)
01943 1943 Anteros (1973 EC) from MLS (Oct. 19.51-52p4)
01863 1863 Antinous (1948 EA) from MLS (Oct. 19.37-38p4)
01685 1685 Toro (1948 OA) from ZTF (Oct. 19.52-54p5)
01580 1580 Betulia (1950 KA) from ATLAS Mauna Loa (Oct. 19.50-52p4)
01036 1036 Ganymed (1924 TD) from WISE (Oct. 16.16p1, 16.29p1, 16.55p1, 16.62p1, 16.68p1, 16.75p1, 16.81p1, 16.88p1, 17.01p1, 17.14p1 & 17.27p1) and ZTF (Oct. 17.46-47p2 & 19.46-50p2)
00887 887 Alinda (1918 DB) from ATLAS Haleakala (Oct. 19.39-41p4) and BAS Obs. (Oct. 19.82-83p3)
00433 433 Eros (1898 DQ) from ZTF (Oct. 19.52-54p5) and ATLAS Mauna Loa (Oct. 19.61-64p3)

MPEC 2020-U131 - "02:29 UT" - 2020 UF2

K20U02F 2020 UF2 (H=21.75 ~151m, NHATS) was picked up at 0250 UT on 18 Oct. by MLS, observing it at Oct. 18.12-14p4. This detection was confirmed by Steward Mt. Lemmon Sta. (Oct. 18.21-22p4, 19.09p3 & 20.09-10p3) and Visnjan Obs. (Oct. 18.73-74p4).

MPEC 2020-U130 - "02:28 UT" - 2020 UE2

K20U02E 2020 UE2 (Earth MOID=3.7 LD, H=26.60 ~16m, NHATS target) was picked up at 0443 UT on 19 Oct. by MLS, observing it at Oct. 19.20-24p6. This detection was confirmed by PS1 (Oct. 16.31p1), Mt. John Obs. (Oct. 19.41-42p3), and Visnjan Obs. (Oct. 19.79-80p3).

MPEC 2020-U129 - "01:21 UT" - 2020 UD2

K20U02D 2020 UD2 (Earth MOID=8.3 LD, H=24.9 ~35m) was picked up at 1104 UT on 19 Oct. by ATLAS Mauna Loa, observing it at Oct. 19.46-48p4. This detection was confirmed by PS1 (Oct. 14.61-63p3), CSS (Oct. 17.29-30p4), and Visnjan Obs. (Oct. 19.85-86p6).

Observers on 20 October '20

A total of 38 observers appear in today's MPECs.

Code	Observer / observatory
`U71`	AHS Obs., 1 in MPEC 2020-U132 -- 154302
`T05`	ATLAS Haleakala in Hawaii, 7 in MPEC 2020-U132 -- 2020 UV, 2020 UA, 2004 LU3, 87684, 4953, 4055, 887
`T08`	ATLAS Mauna Loa in Hawaii, 41 in MPECs 2020-U129 & 2020-U132 -- 2020 UE, 2020 UD2, 2020 TW3, 2020 SR7, 2020 RM6, 2020 QQ6, 2020 QP3, 2020 OG4, 2013 UX14, 2007 VX137, 2007 UY1, 2004 UB, 2001 SG286, 2000 PQ27, 85804, 53435, 420302, 31669, 303262, 27031, 253106, 21088, 194126, 190208, 185716, 16834, 162173, 154302, 140333, 10115, 8037, 8014, 6239, 5836, 4688, 4450, 3200, 2368, 2212, 1580, 433
`G17`	BAS Obs., 2 in MPEC 2020-U132 -- 90075, 887
`160`	Castelmartini Obs. in Italy, 7 in MPEC 2020-U132 -- 2020 TM6, 2020 RV5, 2020 PD1, 2013 PY6, 2007 VX137, 96744, 140333
`703`	Catalina Sky Survey (CSS) in Arizona, 26 in MPECs 2020-U129, 2020-U132 & 2020-U140 -- 2020 UK2, 2020 UE, 2020 UD2, 2020 UA, 2020 SR7, 2020 RP4, 2016 ED85, 2011 GO27, 2007 TG8, 2005 JT108, 2001 SG286, 99935, 523824, 523633, 488693, 376848, 305090, 253106, 21088, 190208, 16834, 163902, 162173, 154302, 144411, 140333
`V06`	Catalina Sky Survey Kuiper Telescope in Arizona, 1 in MPEC 2020-U132 -- 2020 UV1
`K87`	Dettelbach Vineyard Obs. in Germany, 3 in MPEC 2020-U132 -- 2020 QU6, 2020 PF7, 2004 RF84
`K83`	Forti Obs., 2 in MPEC 2020-U132 -- 420302, 15817
`W46`	Foxfire Village Obs., 3 in MPEC 2020-U132 -- 2020 UA1, 96744, 4947
`L34`	Galhassin Robotic Telescope, 2 in MPEC 2020-U132 -- 2020 UE, 2020 UA
`A17`	Guidestar Obs. in Germany, 10 in MPEC 2020-U132 -- 2020 UQ1, 2020 UE, 2020 TK5, 2020 SR7, 2020 RM6, 2020 QM4, 2020 OG4, 2018 GX4, 2016 ED85, 2011 GO27
`H06`	iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2020-U132 -- 2020 UA
`U68`	JPL SynTrack Robotic Telescope, 1 in MPEC 2020-U132 -- 2020 UY
`C401`	program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-U132 -- 159402
`W92`	MASTER OAFA Obs., 1 in MPEC 2020-U132 -- 2020 PC5
`568^`	R. Wainscoat on Mauna Kea in Hawaii, 4 in MPECs 2020-U134, 2020-U135, 2020-U137 & 2020-U142 -- 2020 UM2, 2020 UH2, 2020 UG2, 2020 TR8
`B67`	Mirasteilas Obs. in Switzerland, 1 in MPEC 2020-U132 -- 2020 UE
`474`	Mt. John Obs. in New Zealand, 2 in MPECs 2020-U130 & 2020-U134 -- 2020 UG2, 2020 UE2
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 35 in MPECs 2020-U130, 2020-U131, 2020-U132, 2020-U133, 2020-U136, 2020-U139 & 2020-U141 -- 2020 UL2, 2020 UJ2, 2020 UF2, 2020 UE2, 2020 TX2, 2020 SS2, 2020 RG, 2020 RE, 2020 OC8, 2016 UA, 2015 UW67, 2011 GO27, 2006 HB, 2003 OA3, 2000 CN33, 99799, 98943, 87311, 69230, 66008, 65803, 523824, 455192, 407338, 380359, 354952, 33342, 162911, 162004, 142348, 138175, 3691, 3200, 1943, 1863
`F51`	Pan-STARRS 1 (PS1) in Hawaii, 29 in MPECs 2020-U129, 2020-U130, 2020-U132, 2020-U133, 2020-U134, 2020-U135, 2020-U136, 2020-U137, 2020-U138, 2020-U139 & 2020-U142 -- 2020 UM2, 2020 UJ2, 2020 UH2, 2020 UG2, 2020 UE2, 2020 UD2, 2020 UD, 2020 UB2, 2020 UA, 2020 TS4, 2020 TR8, 2020 TD2, 2020 RO9, 2020 QE4, 2020 DB5, 2017 SV20, 2016 VG3, 2015 UW67, 2006 HY5, 2000 CN33, 88264, 482718, 481394, 378124, 22753, 163373, 162825, 145656, 2201
`F52`	Pan-STARRS 2 (PS2) in Hawaii, 15 in MPECs 2020-U132, 2020-U133 & 2020-U138 -- 2020 PD1, 2017 SE19, 2016 UA, 2016 TL18, 2015 BF4, 2009 JK1, 2006 HY5, 2000 CN33, 68372, 414586, 404108, 304293, 143624, 8013, 3671
`W16`	Pleasant Groves Obs., 1 in MPEC 2020-U136 -- 2015 UW67
`D29`	Purple Mtn. Obs. Xuyi Station in China, 12 in MPEC 2020-U132 -- 2020 UE, 2020 SB, 2020 RX3, 2020 HP8, 65803, 418416, 414903, 138175, 6239, 5131, 4450, 3200
`K61`	Rokycany Obs. in the Czech Republic, 4 in MPEC 2020-U132 -- 2020 UA1, 2020 UA, 2020 TW3, 2020 TK5
`C95`	SATINO-1 in France, 1 in MPEC 2020-U132 -- 2001 SG286
`Q11`	Shinshiro Obs., 1 in MPEC 2020-U132 -- 162173
`W885`	M. Kumrucu-Lohmiller in Massachusetts via Slooh.com Chile Obs. in Chile, 1 in MPEC 2020-U132 -- 2020 UA
`Q21`	Southern Utsunomiya in Japan, 1 in MPEC 2020-U132 -- 162173
`291`	Spacewatch 1.8m telescope in Arizona, 2 in MPEC 2020-U132 -- 2018 XA, 2017 BP5
`I52`	Steward Obs. Mt. Lemmon Station in Arizona, 41 in MPECs 2020-U131, 2020-U132, 2020-U133, 2020-U134, 2020-U139, 2020-U140 & 2020-U142 -- 2020 UW, 2020 UV, 2020 US, 2020 UR1, 2020 UP1, 2020 UM2, 2020 UK2, 2020 UJ2, 2020 UJ, 2020 UH, 2020 UG2, 2020 UG, 2020 UF2, 2020 UE1, 2020 UE, 2020 UD2, 2020 UD1, 2020 UC1, 2020 UA1, 2020 TZ6, 2020 TZ2, 2020 TY4, 2020 TX1, 2020 TW6, 2020 TT5, 2020 TS4, 2020 TN6, 2020 TM7, 2020 TM3, 2020 TK6, 2020 TK5, 2020 TK4, 2020 TJ3, 2020 TH7, 2020 TH5, 2020 TF, 2020 TD6, 2020 TA7, 2020 OX6, 2020 OK7, 2000 CN33
`673!`	Jana Pittichova Chesley via Table Mtn. Obs. in southern California, 1 in MPEC 2020-U142 -- 2020 UM2
`858`	Tebbutt Obs. in New Mexico, 1 in MPEC 2020-U132 -- 2020 UR1
`W33`	Transit Dreams Obs., 10 in MPEC 2020-U132 -- 2020 UA, 2020 TT5, 2020 PC5, 65717, 27031, 16834, 10115, 9058, 4486, 2212
`T12`	UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-U132 -- 2016 KA1
`L01`	Visnjan Obs. in Croatia, 6 in MPECs 2020-U129, 2020-U130, 2020-U131, 2020-U132, 2020-U139 & 2020-U142 -- 2020 UM2, 2020 UJ2, 2020 UF2, 2020 UE2, 2020 UD2, 2007 TE66
`C51`	WISE in Earth polar orbit, 3 in MPEC 2020-U132 -- 2011 SO32, 2011 GO27, 1036
`I41`	Zwicky Transient Facility (ZTF) in southern California, 34 in MPEC 2020-U132 -- 2020 TR2, 2020 TC1, 2020 PD1, 2019 AQ3, 2016 TF93, 2013 UX14, 2006 SS19, 89355, 85804, 85709, 67367, 65690, 415029, 414903, 413192, 382625, 380359, 354663, 322763, 316695, 283729, 27002, 256412, 24761, 21088, 209924, 185716, 162463, 8567, 7350, 4055, 1685, 1036, 433

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

Impact Risk Monitoring on 20 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 UK2	JPL Sentry	2231	2036-2119	23	2.0041547e-05	-5.87	-6.52	0	JPL: Computed at 13:01 today Pacific time based on 13 observations spanning 2.2987 days (2020-Oct-18.18281 to 2020-Oct-20.481489). Diameter approximately 0.013 km. from weighted mean H=26.99.
2020 UK2	NEODyS	2231	2068-2116	24	1.9e-05	-5.96	-6.35	0	NEODyS: "Based on 13 optical observations (of which 0 are rejected as outliers) from 2020-10-18.184 to 2020-10-20.482."

2020 UY	NEODyS	2231	2068-2120	9	4.56e-07	-8.57	-9.15	n/a	NEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2020-10-17.284 to 2020-10-19.315."
2020 UY	JPL Sentry	1700	2068-2119	12	2.25586e-06	-7.84	-8.50	0	JPL: Computed at 08:09 today Pacific time based on 21 observations spanning 2.0303 days (2020-Oct-17.283456 to 2020-Oct-19.313708). Diameter approximately 0.005 km. from weighted mean H=28.95.

2020 UX	JPL Sentry	1700	2046-2114	35	0.000199381035	-6.63	-6.84	0	JPL: Computed at 01:07 Oct. 18th Pacific time based on 11 observations spanning .97008 days (2020-Oct-17.276838 to 2020-Oct-18.246915). Diameter approximately 0.002 km. from weighted mean H=31.10.

2020 UJ	NEODyS	2231	2043	1	1.27e-07	-6.06	-6.06	0	NEODyS: "Based on 17 optical observations (of which 0 are rejected as outliers) from 2020-10-10.324 to 2020-10-20.160."
2020 UJ	JPL Sentry	1700	2043-2043	1	1.020e-06	-5.16	-5.16	0	JPL: Computed at 08:01 today Pacific time based on 17 observations spanning 9.8357 days (2020-Oct-10.323552 to 2020-Oct-20.15925). Diameter approximately 0.051 km. from weighted mean H=24.11.

2020 UH	JPL Sentry	1700	2106-2119	2	4.1455e-07	-6.40	-6.51	0	JPL: Computed at 08:19 today Pacific time based on 43 observations spanning 4.8444 days (2020-Oct-15.308398 to 2020-Oct-20.1528). Diameter approximately 0.045 km. from weighted mean H=24.40.

2020 UE	NEODyS	2231	2042-2120	46	2.61e-05	-4.82	-5.37	n/a	NEODyS: "Based on 102 optical observations (of which 0 are rejected as outliers) from 2020-10-15.470 to 2020-10-20.265."
2020 UE	JPL Sentry	1700	2061-2118	25	2.943286e-05	-4.74	-5.09	0	JPL: Computed at 08:26 today Pacific time based on 102 observations spanning 4.7945 days (2020-Oct-15.46967 to 2020-Oct-20.26422). Diameter approximately 0.026 km. from weighted mean H=25.56.

2020 UA	NEODyS	2231	2065-2091	10	3.93e-07	-8.26	-8.66	0	NEODyS: "Based on 52 optical observations (of which 0 are rejected as outliers) from 2020-10-16.316 to 2020-10-20.410."
2020 UA	JPL Sentry	1700	2065-2105	6	7.11597e-07	-7.98	-8.44	0	JPL: Computed at 08:22 today Pacific time based on 52 observations spanning 4.0932 days (2020-Oct-16.31568 to 2020-Oct-20.40884). Diameter approximately 0.007 km. from weighted mean H=28.36.

2020 TK5	NEODyS	2231	2039-2061	19	7.27e-06	-4.20	-4.31	0	NEODyS: "Based on 57 optical observations (of which 0 are rejected as outliers) from 2020-10-14.332 to 2020-10-20.232."
2020 TK5	JPL Sentry	1700	2039-2056	7	2.16217556e-05	-3.47	-3.52	0	JPL: Computed at 08:41 today Pacific time based on 57 observations spanning 5.8996 days (2020-Oct-14.331481 to 2020-Oct-20.231073). Diameter approximately 0.069 km. from weighted mean H=23.45.

2020 TY4	NEODyS	2231	2086-2111	9	2.23e-06	-5.44	-5.81	0	NEODyS: "Based on 51 optical observations (of which 0 are rejected as outliers) from 2020-10-13.139 to 2020-10-20.174."
2020 TY4	JPL Sentry	1700	2099-2111	4	2.55898e-05	-4.40	-4.41	0	JPL: Computed at 08:23 today Pacific time based on 51 observations spanning 7.0353 days (2020-Oct-13.13828 to 2020-Oct-20.173592). Diameter approximately 0.055 km. from weighted mean H=23.95.

2020 TS4	JPL Sentry	1700	2103-2103	1	5.583e-09	-10.07	-10.07	0	JPL: Computed at 08:46 today Pacific time based on 78 observations spanning 6.0910 days (2020-Oct-14.208103 to 2020-Oct-20.29914). Diameter approximately 0.009 km. from weighted mean H=27.87.

2020 TJ3	NEODyS	2231	2056-2120	57	7.15e-05	-4.18	-4.77	n/a	NEODyS: "Based on 46 optical observations (of which 1 are rejected as outliers) from 2020-10-11.172 to 2020-10-20.146."
2020 TJ3	JPL Sentry	1700	2056-2120	28	5.93727867e-05	-4.23	-4.86	0	JPL: Computed at 08:15 today Pacific time based on 46 observations spanning 8.9744 days (2020-Oct-11.171145 to 2020-Oct-20.145553). Diameter approximately 0.041 km. from weighted mean H=24.59.

2017 UL52	JPL Sentry	1700	2030-2117	225	1.0971039e-06	-7.64	-8.81	0	JPL: Computed at 13:45 Dec. 15th of 2017 Pacific time based on 5 observations spanning .16943 days (2017-Oct-21.30556 to 2017-Oct-21.47499). Diameter approximately 0.008 km. from weighted mean H=28.08.

2017 TD6	JPL Sentry	1700	2081-2081	1	3.521e-08	-8.67	-8.67	0	JPL: Computed at 10:30 Feb. 10th of 2018 Pacific time based on 96 observations spanning 8.1160 days (2017-Oct-11.41171 to 2017-Oct-19.527745). Diameter approximately 0.012 km. from weighted mean H=27.18.

2017 MZ8	JPL Sentry	1700	2023-2119	62	3.21284e-08	-5.82	-6.22	0	JPL: Computed at 12:34 Dec. 18th of 2019 Pacific time based on 7 observations spanning 1.0629 days (2017-Jun-22.55376 to 2017-Jun-23.616624). Diameter approximately 0.112 km. from weighted mean H=22.38.

2016 TY55	JPL Sentry	1700	2074-2118	18	4.9085295e-05	-5.52	-5.60	0	JPL: Computed at 07:03 July 17th of 2019 Pacific time based on 45 observations spanning 9.0714 days (2016-Oct-10.37293 to 2016-Oct-19.44429). Diameter approximately 0.014 km. from weighted mean H=26.86.

2014 UY57	JPL Sentry	1700	2071-2076	2	5.961e-08	-8.38	-8.60	0	JPL: Computed at 23:52 April 8th of 2017 Pacific time based on 30 observations spanning 4.9819 days (2014-Oct-25.31921 to 2014-Oct-30.301115). Diameter approximately 0.012 km. from weighted mean H=27.18.

2012 UU158	JPL Sentry	1700	2042-2078	5	2.913812e-06	-6.43	-6.48	0	JPL: Computed at 13:26 April 10th of 2017 Pacific time based on 10 observations spanning 13.951 days (2012-Oct-23.505478 to 2012-Nov-06.456322). Diameter approximately 0.014 km. from weighted mean H=26.89.

2011 UA64	JPL Sentry	1700	2113-2113	1	8.671e-08	-8.22	-8.22	0	JPL: Computed at 07:00 July 16th of 2019 Pacific time based on 26 observations spanning 2.9735 days (2011-Oct-20.405414 to 2011-Oct-23.37892). Diameter approximately 0.013 km. from weighted mean H=27.02.

2005 UA1	JPL Sentry	1700	2036-2036	1	9.136e-08	-7.10	-7.10	0	JPL: Computed at 18:46 April 8th of 2017 Pacific time based on 33 observations spanning 19.020 days (2005-Oct-23.32066 to 2005-Nov-11.340244). Diameter approximately 0.018 km. from weighted mean H=26.35.

1993 UA	JPL Sentry	1700	2111-2111	2	7.143e-07	-6.69	-6.85	0	JPL: Computed at 09:32 April 7th of 2017 Pacific time based on 15 observations spanning 3.0692 days (1993-Oct-21.41449 to 1993-Oct-24.48365). Diameter approximately 0.028 km. from weighted mean H=25.44.

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 20 October '20

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

2231	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 TY4 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 UJ risk assessment - see above Noted that JPL Sentry has posted 2020 UK2 as an impact risk - see above Noted that NEODyS has posted 2020 UK2 as an impact risk - see above Noted that NEODyS has updated its 2020 UY risk assessment - see above Grabbed MPEC 2020-U139 - 2020 UJ2 - see above Grabbed MPEC 2020-U140 - 2020 UK2 - see above Grabbed MPEC 2020-U141 - 2020 UL2 - see above Grabbed MPEC 2020-U142 - 2020 UM2 - see above
1801	Grabbed MPEC 2020-U138 - 2006 HY5 - see above
1700	Noted that JPL Sentry has updated its 1993 UA risk assessment - see above Noted that JPL Sentry has updated its 2005 UA1 risk assessment - see above Noted that JPL Sentry has updated its 2011 UA64 risk assessment - see above Noted that JPL Sentry has updated its 2012 UU158 risk assessment - see above Noted that JPL Sentry has updated its 2014 UY57 risk assessment - see above Noted that JPL Sentry has updated its 2016 TY55 risk assessment - see above Noted that JPL Sentry has updated its 2017 MZ8 risk assessment - see above Noted that JPL Sentry has updated its 2017 TD6 risk assessment - see above Noted that JPL Sentry has updated its 2017 UL52 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 TY4 risk assessment - see above Noted that JPL Sentry has updated its 2020 UA risk assessment - 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 UX risk assessment - see above Noted that JPL Sentry has updated its 2020 UY risk assessment - see above Grabbed MPEC 2020-U132 - Daily Orbit Update - see above Grabbed MPEC 2020-U133 - 2000 CN33 - see above Grabbed MPEC 2020-U134 - 2020 UG2 - see above Grabbed MPEC 2020-U135 - 2020 UH2 - see above Grabbed MPEC 2020-U136 - 2015 UW67 - see above Grabbed MPEC 2020-U137 - 2020 TR8 - see above
0400	Grabbed MPEC 2020-U129 - 2020 UD2 - see above Grabbed MPEC 2020-U130 - 2020 UE2 - see above Grabbed MPEC 2020-U131 - 2020 UF2 - see above

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