2020-10-24 Tracking News

Contents on 24 October '20

IAU Minor Planet Center
- NEOCP Activity -- 83 listings
- New MPECs -- sixteen MPECs
Observers -- 43 observers
Impact Risk Monitoring -- sixteen objects
Chronology

Asteroid/Comet Connection (A/CC) Resources:

Consolidated Risk Tables - the CRT page
Of 1206 risk-listed objects, 193 have had news in the last 31 days. Updated at 2358 UTC on 24 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 24 October '20

The MPC's NEO Confirmation Page has 83 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 83 objects listed. Of these, 37 were "one nighters." So far The Tracking News has counted a total of 98 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 24 October '20

Minor Planet Electronic Circulars

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

MPEC 2020-U200 time-stamped "01:09 UT" - 2020 UM4 - see below
MPEC 2020-U201 time-stamped "02:42 UT" - 2017 WH1 = 2020 SU2 - see below
MPEC 2020-U202 time-stamped "03:17 UT" - 2020 UN4 - see below
MPEC 2020-U203 time-stamped "03:19 UT" - 2020 UO4 - see below
MPEC 2020-U204 time-stamped "03:20 UT" - 2020 UP4 - see below
MPEC 2020-U205 time-stamped "12:04 UT" - Daily Orbit Update - see below
MPEC 2020-U206 time-stamped "13:39 UT" - 2020 UQ4 - see below
MPEC 2020-U207 time-stamped "13:40 UT" - 2020 UR4 - see below
MPEC 2020-U208 time-stamped "13:44 UT" - 2020 US4 - see below
MPEC 2020-U209 time-stamped "13:45 UT" - 2020 UT4 - see below
MPEC 2020-U210 time-stamped "13:46 UT" - 2020 UU4 - see below
MPEC 2020-U211 time-stamped "13:47 UT" - 2020 UV4 - see below
MPEC 2020-U212 time-stamped "13:50 UT" - 2020 UW4 - see below
MPEC 2020-U213 time-stamped "15:00 UT" - 2017 VU13 - see below
MPEC 2020-U214 time-stamped "19:29 UT" - 2004 US1 - see below
MPEC 2020-U215 time-stamped "22:24 UT" - 2020 UX4

MPEC 2020-U215 - "22:24 UT" - 2020 UX4

K20U04X 2020 UX4 (risk listed, Earth MOID=0.3 LD, H=25.54 ~26m) was picked up at 1051 UT on 24 Oct. by ATLAS Haleakala, observing it at Oct. 24.45-48p4 and 24.60p4. This detection was confirmed by the Catalina Sky Survey (CSS) (Oct. 22.18-20p2), ATLAS Mauna Loa (Oct. 24.60p5), Rokycany Obs. (Oct. 24.80p4), Hoyerswerda Obs. (Oct. 24.85p4), and Oberfrauendorf Obs. (Oct. 24.86p4).

MPEC 2020-U214 - "19:29 UT" - 2004 US1

K04U01S 2004 US1 (H=20.7 ~245m) from ATLAS Mauna Loa (Oct. 24.36-42p8), ATLAS Haleakala (Oct. 24.45p3), Rokycany Obs. (Oct. 24.70p4), Muensterschwarzach Obs. (Oct. 24.74p4), and SATINO-1 (Oct. 24.76-77p3)

MPEC 2020-U213 - "15:00 UT" - 2017 VU13

K17V13U 2017 VU13 (H=20.8 ~234m) from Robert Holmes via Cerro Tololo Inter-American Obs. (CTIO) (Oct. 23.22p3 & 24.06-07p3)

MPEC 2020-U212 - "13:50 UT" - 2020 UW4

K20U04W 2020 UW4 (H=20.8 ~234m) was picked up at 0336 UT on 22 Oct. by the Mt. Lemmon Survey (MLS), observing it at Oct. 22.15-16p3 at G=21.11-48 and 24.23p3 at G=21.81-22.48. This detection was confirmed by Steward Obs. Mt. Lemmon Station (Oct. 22.29-30p3 & 23.07-08p3) and Astronomical Research Obs. Westfield (Oct. 23.03-05p3).

MPEC 2020-U211 - "13:47 UT" - 2020 UV4

K20U04V 2020 UV4 (small asteroid, H=25.7 ~25m) was picked up at 0615 UT on 22 Oct. by MLS, observing it at Oct. 22.26-28p4. This detection was confirmed by Steward Mt. Lemmon Sta. (Oct. 22.47p3 & 24.27p4), Visnjan Obs. (Oct. 23.01p4), and Tebbutt Obs. (Oct. 23.20-23p3).

MPEC 2020-U210 - "13:46 UT" - 2020 UU4

K20U04U 2020 UU4 (Earth MOID=1.7 LD, H=26.8 ~15m) was picked up at 0320 UT on 23 Oct. by MLS, observing it at Oct. 23.14-16p4. This detection was confirmed by Steward Mt. Lemmon Sta. (Oct. 23.35p4), Great Shefford Obs. (Oct. 23.82-84p4), Ametlla del Valles Obs. (Oct. 23.83p2), Chelmsford Obs. (Oct. 23.96-00p2), Squirrel Valley Obs. (Oct. 24.01-04p3), and Transit Dreams Obs. (Oct. 24.14-15p3).

MPEC 2020-U209 - "13:45 UT" - 2020 UT4

K20U04T 2020 UT4 (risk listed, Earth MOID=0.5 LD, H=28.2 ~8m, close passer) was picked up at 0621 UT on 23 Oct. by MLS, observing it at Oct. 23.27-28p4 and 24.34-36p4. This detection was confirmed by Steward Mt. Lemmon Sta. (Oct. 23.40-41p4, 23.47p3 & 24.29p4) and Great Shefford Obs. (Oct. 23.88-91p4).

MPEC 2020-U208 - "13:44 UT" - 2020 US4

K20U04S 2020 US4 (small asteroid, H=25.8 ~23m) was picked up at 0603 UT on 18 Oct. by MLS, observing it at Oct. 18.25-27p4 and 23.19-20p4. This detection was confirmed by Steward Mt. Lemmon Sta. (Oct. 23.36-37p4 & 24.32p4) and Great Shefford Obs. (Oct. 23.95-96p2).

MPEC 2020-U207 - "13:40 UT" - 2020 UR4

K20U04R 2020 UR4 (Q=4.162 AU, H=20.1 ~323m) was picked up at 0318 UT on 23 Oct. by MLS, observing it at Oct. 13.22-24p3, 23.14-15p4, and 24.23-25p4. This detection was confirmed by Pan-STARRS 1 (PS1) (Oct. 21.27-30p3), Pan-STARRS 2 (PS2) (Oct. 22.23-25p3 at G=21.54-22.02), and Steward Mt. Lemmon Sta. (Oct. 23.32-33p3).

MPEC 2020-U206 - "13:39 UT" - 2020 UQ4

K20U04Q 2020 UQ4 (risk listed, Earth MOID=6.7 LD, H=20.2 ~309m) was picked up at 0639 UT on 22 Oct. by MLS, observing it at Oct. 11.31p2 at G=21.7, 22.28-29p4 at G=21.79-22.66, 22.41-42p3 at G=21.68-22.01, 23.35-36p3, and 24.33-34p4 at G=21.41-22.40.

<< DOU on 24 October '20 >> MPEC 2020-U205 - "12:04 UT" - Daily Orbit Update

Observations of risk-listed objects
K20U03L 2020 UL3 (small asteroid, arc=6 days, H=23.2 ~78m) from Holmes/CTIO (Oct. 23.30-31p3)
K20U00H 2020 UH (small asteroid, arc=8 days, H=24.5 ~43m) from MLS (Oct. 23.18-20p4)
K20U00E 2020 UE (small asteroid, arc=8 days, H=25.6 ~26m, close passer) from MLS (Oct. 23.40p3)
K20T08D 2020 TD8 (small asteroid, arc=9 days, H=27.0 ~13m, close passer, NHATS target) from ATLAS Mauna Loa (Oct. 24.42-44p4)
K20T05K 2020 TK5 (small asteroid, q=0.349 AU, arc=9 days, H=23.6 ~65m) from program code 1 via KLENOT (Oct. 21.90p5)
K20T01Y 2020 TY1 (small asteroid, arc=15 days, H=22.6 ~102m) from KLENOT/code 1 (Oct. 21.93-94p6) and Holmes/CTIO (Oct. 23.25-26p3)
Observations of close-passing objects
K20U04J 2020 UJ4 (arc=1 day, H=26.9 ~14m) from Great Shefford Obs. (Oct. 23.77-78p4)
K20U03J 2020 UJ3 (arc=13 days, H=27.1 ~13m) from Mt. John Obs. (Oct. 23.47p4) and Great Shefford Obs. (Oct. 23.87-88p4)
K20U02A 2020 UA2 (arc=5 days, H=27.6 ~10m, NHATS target) from MLS (Oct. 23.33-35p4)
K20U01N 2020 UN1 (arc=13 days, H=25.5 ~27m) from Mountainville Obs. (Oct. 23.50-54p2)
K20U01A 2020 UA1 (arc=6 days, H=24.3 ~47m) from Purple Mtn. Obs. Xuyi Station (Oct. 22.52-55p2) and MLS (Oct. 23.21-22p4)
K20U00G 2020 UG (arc=8 days, H=26.7 ~15m) from Clixby Obs. (Oct. 23.86-87p3)
K20T06K 2020 TK6 (arc=9 days, H=26.3 ~19m, NHATS target) from Steward Mt. Lemmon Sta. (Oct. 23.51p2)
K20T05T 2020 TT5 (arc=12 days, H=27.0 ~13m, NHATS target) from Mt. John Obs. (Oct. 23.49p4)
K20T05S 2020 TS5 (arc=12 days, H=26.1 ~20m, NHATS target) from MLS (Oct. 23.18-20p3)
K20T05R 2020 TR5 (arc=13 days, H=26.1 ~20m) from Holmes/CTIO (Oct. 23.23-24p4)
K20T04K 2020 TK4 (arc=11 days, H=26.3 ~19m, NHATS target) from Mt. John Obs. (Oct. 23.43p4)
K20T02D 2020 TD2 (Q=4.141 AU, arc=14 days, H=25.5 ~27m) from ARO Westfield (Oct. 23.22-23p3 at V=22.2)
K17U05H 2017 UH5 (arc=2 opp, H=26.6 ~16m, NHATS target) from Squirrel Valley Obs. (Oct. 24.13-14p3)
K08U95U 2008 UU95 (Q=4.239 AU, arc=2 opp, H=23.7 ~62m) from CSS (Oct. 23.23-24p3) and ATLAS Mauna Loa (Oct. 23.42-45p4)
K01SS6G 2001 SG286 (arc=6 opp, H=21.0 ~214m) from CSS (Oct. 23.18-20p4) and LCO McDonald Obs. B (Oct. 23.27-28p3)
Observation campaigns (NHATS targets, radar support)
K20U04E 2020 UE4 (arc=3 days, H=23.6 ~65m, NHATS) from PS1 (Oct. 23.44-48p4 at w=21.95-22.22)
K20U03N 2020 UN3 (arc=3 days, H=23.9 ~56m, NHATS) from the Zwicky Transient Facility (ZTF) (Oct. 22.35-38p2 & 22.42-43p2) and Holmes/CTIO (Oct. 23.26-27p3)
K20S06H 2020 SH6 (arc=27 days, H=24.7 ~39m, NHATS) from MLS (Oct. 23.38-39p4)
K18V06T 2018 VT6 (arc=13 days, H=25.3 ~29m, NHATS) from the Spacewatch 1.8m telescope (2018 Nov. 19.46-48p2)
K07U01Y 2007 UY1 (arc=3 opp, H=23.0 ~85m, NHATS) from SATINO-1 (Oct. 20.00-01p3) and PS2 (Oct. 23.55-56p2)
K05U64V 2005 UV64 (arc=2 opp, H=26.4 ~18m, NHATS) from MLS (Oct. 23.16-18p4)
J98V32D 1998 VD32 (arc=2 opp, H=22.4 ~112m, NHATS) from MLS (Oct. 23.31-32p4)
E3404 143404 2003 BD44 (radar) from MLS (Oct. 23.51-52p4)
11398 11398 1998 YP11 (radar) from ZTF (Oct. 23.37p2)
-- NHATS target table -- Planetary radar schedules: Arecibo & Goldstone
Observations of small (H>22.0) & smallish (21.7<H<=22.0) asteroids
K20U04G 2020 UG4 (arc=4 days, H=24.6 ~41m) from CSS (Oct. 24.37-39p4)
K20U03Y 2020 UY3 (arc=2 days, H=25.7 ~25m) from Holmes/CTIO (Oct. 23.09p3)
K20U03X 2020 UX3 (arc=4 days, H=25.0 ~34m) from Steward Mt. Lemmon Sta. (Oct. 23.35-38p2)
K20U02T 2020 UT2 (arc=4 days, H=25.8 ~23m) from MLS (Oct. 23.16-18p4)
K20U02J 2020 UJ2 (Q=4.022 AU, arc=6 days, H=23.7 ~62m) from Holmes/CTIO (Oct. 23.36p2)
K20U01S 2020 US1 (arc=44 days, H=25.0 ~34m) from PS1 (Oct. 23.49-52p4)
K20U01Q 2020 UQ1 (i=43.7°, arc=8 days, H=22.8 ~93m) from Paus Obs. (Oct. 23.91-93p3)
K20U01M 2020 UM1 (arc=12 days, H=25.8 ~23m) from Mt. John Obs. (Oct. 23.48p4)
K20U01E 2020 UE1 (arc=8 days, H=25.7 ~25m) from MLS (Oct. 23.33-35p4)
K20U00D 2020 UD (arc=15 days, H=22.9 ~89m) from PS2 (Oct. 23.50-52p2)
K20T07T 2020 TT7 (arc=9 days, H=22.3 ~117m) from ARO Westfield (Oct. 23.31-32p3 at V=22.0-22.1)
K20T06L 2020 TL6 (arc=15 days, H=24.1 ~51m) from MLS (Oct. 23.29-31p4)
K20T06B 2020 TB6 (arc=9 days, H=24.4 ~45m) from MLS (Oct. 23.33-35p4 at G=20.96-22.05)
K20T05Z 2020 TZ5 (arc=10 days, H=23.3 ~74m) from ARO Westfield (Oct. 23.19-20p3 at V=22.1-6)
K20T05C 2020 TC5 (arc=10 days, H=23.8 ~59m) from MLS (Oct. 23.11-13p4 at G=20.62-22.28)
K20T04H 2020 TH4 (arc=12 days, H=27.0 ~13m) from ARO Westfield (Oct. 23.25-26p3 at V=21.8-22.3)
K20T03G 2020 TG3 (Q=4.607 AU, arc=17 days, H=22.1 ~129m) from ATLAS Mauna Loa (Oct. 23.42-45p4) and PS2 (Oct. 23.45-48p4)
K20T01U 2020 TU1 (arc=15 days, H=24.9 ~35m) from MLS (Oct. 23.31-33p4) and PS1 (Oct. 23.55-56p2)
K20S07R 2020 SR7 (arc=27 days, H=22.1 ~129m) from Clixby Obs. (Oct. 23.84-85p5)
K20S06V 2020 SV6 (arc=29 days, H=23.6 ~65m) from MLS (Oct. 23.38-39p4) and PS2 (Oct. 23.40-44p3)
K20S06S 2020 SS6 (arc=34 days, H=23.3 ~74m) from ARO Westfield (Oct. 23.13-15p3 at V=22.1-2)
K20S00L 2020 SL (arc=49 days, H=22.8 ~93m) from MLS (Oct. 23.27-28p4 at G=21.29-22.57)
K20R08A 2020 RA8 (Q=4.018 AU, arc=39 days, H=24.2 ~49m) from MLS (Oct. 23.47-49p4)
K20R03X 2020 RX3 (Q=4.398 AU, arc=43 days, H=22.3 ~117m) from Steward Mt. Lemmon Sta. (Oct. 23.22p4) and MLS (Oct. 23.25-26p4 & 23.40p3)
K19U08D 2019 UD8 (arc=58 days, H=22.9 ~89m) from UH/Tholen NEO Follow-Up 2.24m Telescope (2019 Dec. 4.30p1 at G=22.87)
K18V00S 2018 VS (arc=33 days, H=24.6 ~41m) from Spacewatch 1.8m (2018 Nov. 26.38-39p2)
K13G68X 2013 GX68 (arc=2 opp, H=23.0 ~85m) from MLS (Oct. 23.27-28p4)
K20U00Z 2020 UZ (i=44.1°, arc=7 days, H=22.0 ~135m) from MLS (Oct. 23.43-44p3)
K20T03P 2020 TP3 (arc=24 days, H=22.0 ~135m) from MLS (Oct. 23.45-46p4) and ATLAS Mauna Loa (Oct. 23.53-57p4)
K20S01T 2020 ST1 (arc=58 days, H=21.8 ~148m) from ATLAS Mauna Loa (Oct. 23.36-44p7), Clixby Obs. (Oct. 23.82-83p5), and PS2 (Oct. 24.26-27p4)
K20P05S 2020 PS5 (arc=87 days, H=22.0 ~135m) from MLS (Oct. 23.13-15p4)
K10R12C 2010 RC12 (arc=2 opp, H=21.9 ~141m) from PS1 (Oct. 23.38-42p3) and PS2 (Oct. 23.46-49p4)
Observations of other objects
K20U03Z 2020 UZ3 (arc=44 days, H=20.3 ~295m) from Holmes/CTIO (Oct. 23.10-11p4) and ATLAS Haleakala (Oct. 23.41-43p4)
K20U02G 2020 UG2 (arc=6 days, H=21.7 ~155m) from Holmes/CTIO (Oct. 23.20-21p3)
K20U01V 2020 UV1 (arc=7 days, H=20.2 ~309m) from Holmes/CTIO (Oct. 23.34-36p3)
K20T07U 2020 TU7 (arc=30 days, H=21.3 ~186m) from Holmes/CTIO (Oct. 23.13p2)
K20T07A 2020 TA7 (i=41.8°, arc=8 days, H=21.7 ~155m) from Holmes/CTIO (Oct. 23.01-02p3)
K20T05G 2020 TG5 (arc=10 days, H=21.3 ~186m) from MLS (Oct. 23.18-20p4)
K20T04G 2020 TG4 (Q=4.173 AU, arc=34 days, H=20.2 ~309m) from PS2 (Oct. 23.55-58p4)
K20T02S 2020 TS2 (q=0.126 AU, Q=4.881 AU, arc=21 days, H=18.9 ~562m) from Mt. John Obs. (Oct. 23.41-42p3)
K20T02M 2020 TM2 (arc=15 days, H=21.2 ~195m) from MLS (Oct. 23.18-19p3)
K20T00O 2020 TO from Holmes/CTIO (Oct. 23.15-16p3)
K20S07J 2020 SJ7 (arc=24 days, H=20.1 ~323m) from PS2 (Oct. 23.46-49p4)
K20S03F 2020 SF3 (Q=4.370 AU, arc=43 days, H=21.6 ~162m) from MLS (Oct. 23.36-37p4) and PS2 (Oct. 23.40-44p4)
K20S02W 2020 SW2 (arc=35 days, H=20.6 ~257m) from PS1 (Oct. 23.37-41p3)
K20S02U 2020 SU2 from MLS (Oct. 23.29-30p4)
K20S01C 2020 SC1 (arc=39 days, H=21.1 ~204m) from PS2 (Oct. 23.35-40p3 & 23.46-49p4) and PS1 (Oct. 23.38-42p4)
K20R09Z 2020 RZ9 (Q=4.208 AU, arc=39 days, H=21.2 ~195m) from MLS (Oct. 23.21-22p4)
K20R09O 2020 RO9 (Q=4.219 AU, arc=37 days, H=18.5 ~676m) from ZTF (Oct. 19.48p3 & 21.50-51p3)
K20Q06U 2020 QU6 (arc=57 days, H=18.2 ~776m) from Castelmartini Obs. (Oct. 19.86-87p3)
K20Q06Q 2020 QQ6 (Q=4.107 AU, arc=71 days, H=19.7 ~389m) from ZTF (Oct. 21.22p1, 21.29p1, 21.36p1, 23.18p1 & 23.27p1) and ATLAS Mauna Loa (Oct. 23.37-40p4)
K20Q06F 2020 QF6 (i=73.6°, Q=4.503 AU, arc=62 days, H=17.8 ~933m) from Holmes/CTIO (Oct. 23.33p3)
K20Q05O 2020 QO5 (arc=64 days, H=18.9 ~562m) from Holmes/CTIO (Oct. 23.32p3)
K20Q04M 2020 QM4 (arc=66 days, H=18.6 ~645m) from CSS (Oct. 23.25-26p4), PS2 (Oct. 23.35-40p4), and Transit Dreams Obs. (Oct. 24.18-21p4)
K20P07F 2020 PF7 (Q=5.014 AU, arc=76 days, H=18.7 ~616m) from CSS (Oct. 23.09-11p3)
K20P01D 2020 PD1 (Q=4.135 AU, arc=122 days, H=19.3 ~467m) from Eden Obs. (Oct. 21.66-69p5)
K20O08C 2020 OC8 (arc=130 days, H=20.7 ~245m) from ATLAS Haleakala (Oct. 23.37-40p4)
K20O05L 2020 OL5 (arc=146 days, H=21.6 ~162m) from PS1 (Oct. 23.43-47p4 at w=22.7-23.0)
K20O04G 2020 OG4 (arc=92 days, H=18.5 ~676m) from PS2 (Oct. 23.38-40p2) and ATLAS Mauna Loa (Oct. 23.47-50p4)
K20L02A 2020 LA2 (Q=7.490 AU, arc=130 days, H=19.8 ~371m) from ATLAS Mauna Loa (Oct. 23.51-52p4)
K20K05Z 2020 KZ5 (arc=150 days, H=19.9 ~355m) from MLS (Oct. 23.16-18p4)
K20H10U 2020 HU10 (arc=204 days, H=21.3 ~186m) from MLS (Oct. 23.09-11p3)
K19A03Q 2019 AQ3 (i=47.2°, Q=0.774 AU, arc=3 opp, H=17.5 ~1.07 km) from ZTF (Oct. 21.52-54p5)
K18G05V 2018 GV5 (arc=2 opp, H=20.0 ~339m) from MLS (Oct. 23.29-30p4)
K18G04X 2018 GX4 (arc=4 opp, H=19.2 ~490m) from Xuyi Sta. (Oct. 22.81-84p3)
K18A12M 2018 AM12 (arc=4 opp, H=21.2 ~195m) from Tholen 2.24m (2019 Jan. 15.59p1 at G=22.80)
K17V12T 2017 VT12 (arc=4 opp, H=20.4 ~282m) from PS2 (Oct. 23.55-58p3)
K17V01V 2017 VV1 (arc=39 days, H=20.1 ~323m) from Spacewatch 1.8m (2017 Nov. 19.11-12p2)
K17S20V 2017 SV20 (arc=5 opp, H=18.6 ~645m) from Spacewatch 1.8m (2017 Nov. 13.23-24p2)
K16V05S 2016 VS5 (arc=3 opp, H=19.8 ~371m) from ARO Westfield (Oct. 23.16-18p3 at V=22.2-6)
K16N38V 2016 NV38 (Q=4.019 AU, arc=2 opp, H=18.7 ~616m) from ATLAS Haleakala (Oct. 23.56-58p4)
K16E85D 2016 ED85 (Q=5.062 AU, arc=3 opp, H=17.7 ~977m) from CSS (Oct. 23.46-48p4)
K15FX2P 2015 FP332 (i=36.6°, Q=4.788 AU, arc=6 opp, H=17.4 ~1.12 km) from program code "!" (10) via DECam (Oct. 21.36-37p4, 22.22-24p5 & 22.35-37p5)
K15B04F 2015 BF4 (arc=6 opp, H=20.4 ~282m) from ATLAS Mauna Loa (Oct. 23.47-49p6) and PS1 (Oct. 23.55-59p4)
K14UB6R 2014 UR116 (arc=6 opp, H=19.8 ~371m) from CSS (Oct. 23.29-30p4)
K13U14X 2013 UX14 (arc=4 opp, H=18.3 ~741m) from ATLAS Mauna Loa (Oct. 23.50-52p4)
K13P10F 2013 PF10 (arc=5 opp, H=20.2 ~309m) from PS1 (Oct. 23.49-52p4)
K13P06Y 2013 PY6 (arc=4 opp, H=19.3 ~467m) from Eden Obs. (Oct. 18.69-76p10 & 22.70-72p6) and QOS Obs. (Oct. 22.80-81p6)
K13M05X 2013 MX5 (arc=3 opp, H=18.9 ~562m) from PS2 (Oct. 23.55-58p3)
K13G07Y 2013 GY7 (arc=3 opp, H=20.5 ~269m) from WISE (Oct. 21.08p1, 21.15p1, 21.21p1, 21.35p2, 21.41p1, 21.48p1, 21.54p1, 21.61p1, 21.67p1, 22.06p1, 22.13p2, 22.26p1, 22.33p1, 22.39p1, 22.59p1, 22.65p1, 22.72p1, 22.78p1, 22.85p1 & 23.05p2)
K11UJ2X 2011 UX192 (i=55.6°, q=0.305 AU, arc=4 opp, H=18.5 ~676m) from PS2 (Oct. 23.54-58p4)
K11G27O 2011 GO27 (arc=4 opp, H=19.0 ~537m) from CSS (Oct. 23.42-43p2)
K10T55P 2010 TP55 (arc=3 opp, H=20.5 ~269m) from Spacewatch 1.8m (2017 Nov. 15.07-08p2)
K09Q02K 2009 QK2 (Q=4.942 AU, arc=3 opp, H=17.9 ~891m) from PS2 (Oct. 23.40-43p3)
K07VD7X 2007 VX137 (arc=5 opp, H=18.5 ~676m) from ATLAS Mauna Loa (Oct. 23.40-44p4)
K07T08G 2007 TG8 (Q=4.305 AU, arc=3 opp, H=18.6 ~645m) from CSS (Oct. 23.40-42p4)
K07S01R 2007 SR1 (arc=4 opp, H=20.2 ~309m) from PS1 (Oct. 23.37-41p3)
K06S06A 2006 SA6 (Q=4.504 AU, arc=4 opp, H=19.2 ~490m) from MLS (Oct. 23.38-39p4) and PS1 (Oct. 23.54-58p4)
K05S00Q 2005 SQ (arc=5 opp, H=20.2 ~309m) from MLS (Oct. 23.27-28p3)
K04L03U 2004 LU3 (arc=5 opp, H=18.4 ~708m) from ATLAS Haleakala (Oct. 23.49-50p4)
K03U22G 2003 UG22 (arc=3 opp, H=21.1 ~204m) from MLS (Oct. 23.40-42p4) and ATLAS Mauna Loa (Oct. 23.48-53p4)
K03O03A 2003 OA3 (arc=5 opp, H=19.6 ~407m) from WISE (Oct. 21.61p1 & 21.87p1)
K00T28U 2000 TU28 (arc=3 opp, H=21.1 ~204m) from program code "'" (16) via Slooh.com Chile Obs. (Oct. 23.35-36p3) and ATLAS Haleakala (Oct. 23.46-50p4)
J98M24R 1998 MR24 (arc=5 opp, H=19.3 ~467m) from MLS (Oct. 23.35-37p3)
r7467 537467 2015 ME54 from PS1 (Oct. 23.54-58p3 at w=22.5-6)
p3125 513125 1997 GC32 from WISE (Oct. 21.91p1, 22.04p1, 22.11p2, 22.17p1, 22.24p1, 22.37p1 & 22.50p1)
n6001 496001 2007 VR183 from MLS (Oct. 23.29-30p4)
m9885 489885 2008 HY37 from GINOP-KHK (Oct. 23.04-06p3)
m8693 488693 2003 WW87 from CSS (Oct. 23.46-47p3)
l4179 474179 1999 VS6 from ATLAS Mauna Loa (Oct. 23.53-57p4)
k4885 464885 2005 LS3 from PS1 (Oct. 23.44-47p3 at w=22.0-22.2)
i8972 448972 2011 YV15 from MLS (Oct. 23.29-30p4)
i3837 443837 2000 TJ1 from ATLAS Haleakala (Oct. 23.34-35p4)
h5404 435404 2008 AT28 from ZTF (Oct. 21.42-44p2)
g0302 420302 2011 XZ1 from MLS (Oct. 23.14-15p4) and PS2 (Oct. 24.22-24p3)
f8797 418797 2008 VF from LCO McDonald Obs. B (Oct. 23.26-27p3)
f8416 418416 2008 LV16 from PS1 (Oct. 23.61-63p4)
f5029 415029 2011 UL21 from ZTF (Oct. 19.49p1 & 21.44-45p2)
f4903 414903 2010 XT45 from PS2 (Oct. 23.41-45p4) and ATLAS Mauna Loa (Oct. 23.53-58p4)
d5207 395207 2010 HQ80 from PS1 (Oct. 23.45-48p3)
d2211 392211 2009 TG10 from MLS (Oct. 23.18-20p4)
c0359 380359 2002 TN30 from ZTF (Oct. 23.38-39p2)
c0128 380128 1997 WB21 from ATLAS Mauna Loa (Oct. 23.60-64p4)
b8160 378160 2006 WX1 from GINOP-KHK (Oct. 23.02-04p3)
a1754 361754 2007 YV29 from PS1 (Oct. 23.62-63p3)
Y0666 340666 2006 RO36 from CSS (Oct. 23.46-48p3)
V6695 316695 1996 TE9 from ZTF (Oct. 23.16-24p6)
U3262 303262 2004 RJ84 from MLS (Oct. 23.09-11p4) and ATLAS Mauna Loa (Oct. 23.36-39p5)
S5331 285331 1999 FN53 from MLS (Oct. 23.40-42p4 at G=21.21-22.03) and PS2 (Oct. 23.41-44p3)
Q4308 264308 1999 NA5 from MLS (Oct. 23.38-39p4 at G=21.25-22.13)
Q2623 262623 2006 WY2 from PS1 (Oct. 23.62-63p2)
P3106 253106 2002 UR3 from CSS (Oct. 23.44-46p3)
O1596 241596 1998 XM2 from ATLAS Mauna Loa (Oct. 23.59-61p4)
J8752 198752 2005 EA60 from PS1 (Oct. 23.54-58p4)
J4126 194126 2001 SG276 from MLS (Oct. 23.36-37p4), ATLAS Mauna Loa (Oct. 23.47-49p4), and Transit Dreams Obs. (Oct. 24.12-13p3)
J0788 190788 2001 RT17 from MLS (Oct. 23.14-16p4)
J0208 190208 2006 AQ from ATLAS Mauna Loa (Oct. 23.62-64p4)
I5716 185716 1998 SF35 from ATLAS Mauna Loa (Oct. 23.52-55p4)
G3902 163902 2003 SW222 from CSS (Oct. 23.29-30p4)
G3692 163692 2003 CY18 from ATLAS Haleakala (Oct. 23.27-31p4)
G3364 163364 2002 OD20 from PS2 (Oct. 23.55-59p4)
G3081 163081 2002 AG29 from Castelmartini Obs. (Oct. 19.79p3)
G3051 163051 2001 YJ4 from MLS (Oct. 23.20-22p4 at G=21.06-22.41)
G3014 163014 2001 UA5 from ATLAS Haleakala (Oct. 23.32-37p4)
G2911 162911 2001 LL5 from CSS (Oct. 23.42-43p3)
G2210 162210 1999 SM5 from PS2 (Oct. 23.55-59p3)
G2173 162173 Ryugu (1999 JU3) from Castelmartini Obs. (Oct. 19.87p3) and ATLAS Mauna Loa (Oct. 23.41-44p4)
F9856 159856 2004 JW6 from PS1 (Oct. 23.54-58p4)
F9402 159402 1999 AP10 from program code 1 via Kuban State Univ. Obs. (Oct. 23.72-88p24)
F4302 154302 2002 UQ3 from CSS (Oct. 23.25-27p4), PS1 (Oct. 23.38-42p4), ATLAS Mauna Loa (Oct. 23.44-47p4), PS2 (Oct. 23.46-49p3), and Transit Dreams Obs. (Oct. 24.16-18p7)
F4275 154275 2002 SR41 from ATLAS Mauna Loa (Oct. 23.32-34p4)
F2895 152895 2000 CQ101 from PS1 (Oct. 23.61-63p4 at w=22.0-22.4)
E5656 145656 4788 P-L from ATLAS Haleakala (Oct. 23.28-35p7)
E4411 144411 2004 EW9 from CSS (Oct. 23.27-28p4)
E1354 141354 2002 AJ29 from MLS (Oct. 23.38-39p4) and PS2 (Oct. 23.40-44p2)
E0333 140333 2001 TD2 from CSS (Oct. 23.22-24p4) and ATLAS Mauna Loa (Oct. 23.42-44p4)
D7078 137078 1998 XZ4 from PS1 (Oct. 23.61-63p4)
B2221 112221 2002 KH4 from PS2 (Oct. 23.36-40p3) and PS1 (Oct. 23.38-42p4)
A5140 105140 2000 NL10 from ATLAS Mauna Loa (Oct. 23.29-34p5)
90147 90147 2002 YK14 from CSS (Oct. 23.07-08p4)
89136 89136 2001 US16 from MLS (Oct. 23.42-43p3 at G=21.19-22.34)
87684 87684 2000 SY2 from ATLAS Haleakala (Oct. 23.48-53p4)
86039 86039 1999 NC43 from ATLAS Haleakala (Oct. 23.21-24p4)
85867 85867 1999 BY9 from MLS (Oct. 23.38-39p4)
85275 85275 1994 LY from AAAA Buenos Aires Obs. (Oct. 8.08-11p2)
69230 69230 Hermes (1937 UB) from ATLAS Haleakala (Oct. 23.38-40p4)
68372 68372 2001 PM9 from MLS (Oct. 23.31-33p4)
65717 65717 1993 BX3 from LCO McDonald Obs. B (Oct. 23.42-43p5)
53435 53435 1999 VM40 from ATLAS Mauna Loa (Oct. 23.57-59p3)
36284 36284 2000 DM8 from WISE (Oct. 21.24p1, 21.37p1, 21.63p1, 21.89p1, 22.28p1, 22.42p1, 22.55p1, 22.68p1 & 23.07p2)
31669 31669 1999 JT6 from ZTF (Oct. 21.52-54p5)
27031 27031 1998 RO4 from MLS (Oct. 23.33-37p7), ATLAS Mauna Loa (Oct. 23.46-49p4), and PS2 (Oct. 23.51-53p3)
21088 21088 Chelyabinsk (1992 BL2) from CSS (Oct. 23.44-45p4)
20826 20826 2000 UV13 from ATLAS Haleakala (Oct. 23.24-26p4)
16834 16834 1997 WU22 from CSS (Oct. 23.27-28p4)
15817 15817 Lucianotesi (1994 QC) from ATLAS Haleakala (Oct. 23.43-47p4)
12711 12711 Tukmit (1991 BB) from ZTF (Oct. 21.53-54p4)
10115 10115 1992 SK from CSS (Oct. 23.25-26p3)
09058 9058 1992 JB from MLS (Oct. 23.31-33p4) and ATLAS Mauna Loa (Oct. 23.47-48p4)
08567 8567 1996 HW1 from Xuyi Sta. (Oct. 22.81-84p3)
08566 8566 1996 EN from ATLAS Haleakala (Oct. 23.23-25p4)
08037 8037 1993 HO1 from ATLAS Mauna Loa (Oct. 23.62-64p4)
08014 8014 1990 MF from ATLAS Mauna Loa (Oct. 23.50-52p4)
06569 6569 Ondaatje (1993 MO) from ATLAS Haleakala (Oct. 23.27-32p5)
06239 6239 Minos (1989 QF) from MLS (Oct. 23.23-24p3) and ATLAS Mauna Loa (Oct. 23.44-46p4)
05645 5645 1990 SP from Xuyi Sta. (Oct. 22.86-87p2)
05587 5587 1990 SB from ZTF (Oct. 23.34-37p2)
05131 5131 1990 BG from PS1 (Oct. 23.61-63p4)
04953 4953 1990 MU from ATLAS Haleakala (Oct. 23.49-53p3)
04503 4503 Cleobulus (1989 WM) from PS1 (Oct. 23.43-48p4) and ATLAS Mauna Loa (Oct. 23.46-50p4)
04486 4486 Mithra (1987 SB) from MLS (Oct. 23.33-35p4)
04450 4450 Pan (1987 SY) from MLS (Oct. 23.23-24p4) and ATLAS Mauna Loa (Oct. 23.42-44p4)
04055 4055 Magellan (1985 DO2) from ATLAS Haleakala (Oct. 23.45-49p4)
02212 2212 Hephaistos (1978 SB) from Tebbutt Obs. (Oct. 21.20-25p3), MLS (Oct. 23.33-35p4), and ATLAS Mauna Loa (Oct. 23.47-49p4)
00887 887 Alinda (1918 DB) from ATLAS Haleakala (Oct. 23.38-40p4)

MPEC 2020-U204 - "03:20 UT" - 2020 UP4

K20U04P 2020 UP4 (small asteroid, H=23.3 ~74m) was picked up at 0401 UT on 22 Oct. by MLS, observing it at Oct. 22.17-18p3. This detection was confirmed by Steward Mt. Lemmon Sta. (Oct. 22.32-34p3, 23.08-09p3 & 24.07-08p3) and ARO Westfield (Oct. 23.05-07p3).

MPEC 2020-U203 - "03:19 UT" - 2020 UO4

K20U04O 2020 UO4 (risk listed, Earth MOID=0.9 LD, H=28.60 ~6m, close passer, NHATS target) was picked up at 0830 UT on 23 Oct. by MLS, observing it at Oct. 23.35-37p4. This detection was confirmed by Steward Mt. Lemmon Sta. (Oct. 23.43p4 & 23.50p4), Northolt Branch Obs. (Oct. 23.86-87p2), Paus Obs. (Oct. 23.87-88p4), Chelmsford Obs. (Oct. 23.92-94p2), Great Shefford Obs. (Oct. 23.93-94p4), Clixby Obs. (Oct. 23.98-99p4), Dax Obs. (Oct. 24.02-03p3), Transit Dreams Obs. (Oct. 24.05-06p3), and Squirrel Valley Obs. (Oct. 24.10-11p3).

MPEC 2020-U202 - "03:17 UT" - 2020 UN4

K20U04N 2020 UN4 (Earth MOID=2.1 LD, H=28.00 ~9m) was picked up at 0426 UT on 23 Oct. by MLS, observing it at Oct. 23.19-20p4. This detection was confirmed by Tebbutt Obs. (Oct. 23.29-31p3), Steward Mt. Lemmon Sta. (Oct. 23.30p4 & 23.39-40p4), Great Shefford Obs. (Oct. 23.79-80p3), Transit Dreams Obs. (Oct. 24.03-04p3), Chelmsford Obs. (Oct. 24.04-05p2), Dax Obs. (Oct. 24.04-05p3), and Squirrel Valley Obs. (Oct. 24.05-07p3).

MPEC 2020-U201 - "02:42 UT" - 2017 WH1 = 2020 SU2

K17W01H 2017 WH1 (H=19.6 ~407m)

MPEC 2020-U200 - "01:09 UT" - 2020 UM4

K20U04M 2020 UM4 (small asteroid, Earth MOID=8.1 LD, H=22.82 ~92m) was picked up at 0203 UT on 22 Oct. by CSS, observing it at Oct. 22.09-10p3. This detection was confirmed by Steward Mt. Lemmon Sta. (Oct. 22.18p4, 22.26p4 & 23.07p4), Mt. John Obs. (Oct. 22.35p5 & 23.40p4), Visnjan Obs. (Oct. 22.78-79p5), ROASTERR-1 (Oct. 22.80-81p2), Holmes/CTIO (Oct. 23.03p4), ARO Westfield (Oct. 23.03-04p5), Tebbutt Obs. (Oct. 23.12-15p5), Great Shefford Obs. (Oct. 23.75-76p2), Clixby Obs. (Oct. 23.77p3), and Transit Dreams Obs. (Oct. 24.01p3).

Observers on 24 October '20

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

Code	Observer / observatory
`834`	AAAA Buenos Aires Obs. in Argentina, 1 in MPEC 2020-U205 -- 85275
`B37`	Ametlla del Valles Obs. in Spain, 1 in MPEC 2020-U210 -- 2020 UU4
`H21`	Astronomical Research Obs. Westfield in Illinois, 9 in MPECs 2020-U200, 2020-U204, 2020-U205 & 2020-U212 -- 2020 UW4, 2020 UP4, 2020 UM4, 2020 TZ5, 2020 TT7, 2020 TH4, 2020 TD2, 2020 SS6, 2016 VS5
`T05`	ATLAS Haleakala in Hawaii, 21 in MPECs 2020-U205, 2020-U214 & 2020-U215 -- 2020 UZ3, 2020 UX4, 2020 OC8, 2016 NV38, 2004 US1, 2004 LU3, 2000 TU28, 87684, 86039, 69230, 443837, 20826, 163692, 163014, 15817, 145656, 8566, 6569, 4953, 4055, 887
`T08`	ATLAS Mauna Loa in Hawaii, 36 in MPECs 2020-U205, 2020-U214 & 2020-U215 -- 2020 UX4, 2020 TP3, 2020 TG3, 2020 TD8, 2020 ST1, 2020 QQ6, 2020 OG4, 2020 LA2, 2015 BF4, 2013 UX14, 2008 UU95, 2007 VX137, 2004 US1, 2003 UG22, 53435, 474179, 414903, 380128, 303262, 27031, 241596, 194126, 190208, 185716, 162173, 154302, 154275, 140333, 105140, 9058, 8037, 8014, 6239, 4503, 4450, 2212
`160`	Castelmartini Obs. in Italy, 3 in MPEC 2020-U205 -- 2020 QU6, 163081, 162173
`703`	Catalina Sky Survey (CSS) in Arizona, 23 in MPECs 2020-U200, 2020-U205 & 2020-U215 -- 2020 UX4, 2020 UM4, 2020 UG4, 2020 QM4, 2020 PF7, 2016 ED85, 2014 UR116, 2011 GO27, 2008 UU95, 2007 TG8, 2001 SG286, 90147, 488693, 340666, 253106, 21088, 16834, 163902, 162911, 154302, 144411, 140333, 10115
`807\|`	Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 16 in MPECs 2020-U200, 2020-U205 & 2020-U213 -- 2020 UZ3, 2020 UY3, 2020 UV1, 2020 UN3, 2020 UM4, 2020 UL3, 2020 UJ2, 2020 UG2, 2020 TY1, 2020 TU7, 2020 TR5, 2020 TO, 2020 TA7, 2020 QO5, 2020 QF6, 2017 VU13
`970`	Chelmsford Obs. in England, 3 in MPECs 2020-U202, 2020-U203 & 2020-U210 -- 2020 UU4, 2020 UO4, 2020 UN4
`Z99`	Clixby Obs. in England, 5 in MPECs 2020-U200, 2020-U203 & 2020-U205 -- 2020 UO4, 2020 UM4, 2020 UG, 2020 ST1, 2020 SR7
`958`	Dax Obs. in France, 2 in MPECs 2020-U202 & 2020-U203 -- 2020 UO4, 2020 UN4
`W84!`	program code "!" (10) via DECam in Chile, 1 in MPEC 2020-U205 -- 2015 FP332
`N31`	Eden Obs., 2 in MPEC 2020-U205 -- 2020 PD1, 2013 PY6
`K88`	GINOP-KHK in Hungary, 2 in MPEC 2020-U205 -- 489885, 378160
`J95`	Great Shefford Obs. in England, 8 in MPECs 2020-U200, 2020-U202, 2020-U203, 2020-U205, 2020-U208, 2020-U209 & 2020-U210 -- 2020 UU4, 2020 UT4, 2020 US4, 2020 UO4, 2020 UN4, 2020 UM4, 2020 UJ4, 2020 UJ3
`C43`	Hoyerswerda Obs. in Germany, 1 in MPEC 2020-U215 -- 2020 UX4
`2461`	program code 1 via KLENOT in the Czech Republic, 2 in MPEC 2020-U205 -- 2020 TY1, 2020 TK5
`C401`	program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-U205 -- 159402
`V39`	LCO McDonald Obs. B in Texas, 3 in MPEC 2020-U205 -- 2001 SG286, 65717, 418797
`V01`	Mountainville Obs. in Utah, 1 in MPEC 2020-U205 -- 2020 UN1
`474`	Mt. John Obs. in New Zealand, 6 in MPECs 2020-U200 & 2020-U205 -- 2020 UM4, 2020 UM1, 2020 UJ3, 2020 TT5, 2020 TS2, 2020 TK4
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 65 in MPECs 2020-U202, 2020-U203, 2020-U204, 2020-U205, 2020-U206, 2020-U207, 2020-U208, 2020-U209, 2020-U210, 2020-U211 & 2020-U212 -- 2020 UZ, 2020 UW4, 2020 UV4, 2020 UU4, 2020 UT4, 2020 UT2, 2020 US4, 2020 UR4, 2020 UQ4, 2020 UP4, 2020 UO4, 2020 UN4, 2020 UH, 2020 UE1, 2020 UE, 2020 UA2, 2020 UA1, 2020 TU1, 2020 TS5, 2020 TP3, 2020 TM2, 2020 TL6, 2020 TG5, 2020 TC5, 2020 TB6, 2020 SV6, 2020 SU2, 2020 SL, 2020 SH6, 2020 SF3, 2020 RZ9, 2020 RX3, 2020 RA8, 2020 PS5, 2020 KZ5, 2020 HU10, 2018 GV5, 2013 GX68, 2006 SA6, 2005 UV64, 2005 SQ, 2003 UG22, 1998 VD32, 1998 MR24, 89136, 85867, 68372, 496001, 448972, 420302, 392211, 303262, 285331, 27031, 264308, 194126, 190788, 163051, 143404, 141354, 9058, 6239, 4486, 4450, 2212
`K74`	Muensterschwarzach Obs. in Germany, 1 in MPEC 2020-U214 -- 2004 US1
`Z80`	Northolt Branch Obs. in England, 1 in MPEC 2020-U203 -- 2020 UO4
`G34`	Oberfrauendorf Obs. in Germany, 1 in MPEC 2020-U215 -- 2020 UX4
`F51`	Pan-STARRS 1 (PS1) in Hawaii, 26 in MPECs 2020-U205 & 2020-U207 -- 2020 US1, 2020 UR4, 2020 UE4, 2020 TU1, 2020 SW2, 2020 SC1, 2020 OL5, 2015 BF4, 2013 PF10, 2010 RC12, 2007 SR1, 2006 SA6, 537467, 464885, 418416, 395207, 361754, 262623, 198752, 159856, 154302, 152895, 137078, 112221, 5131, 4503
`F52`	Pan-STARRS 2 (PS2) in Hawaii, 26 in MPECs 2020-U205 & 2020-U207 -- 2020 UR4, 2020 UD, 2020 TG4, 2020 TG3, 2020 SV6, 2020 ST1, 2020 SJ7, 2020 SF3, 2020 SC1, 2020 QM4, 2020 OG4, 2017 VT12, 2013 MX5, 2011 UX192, 2010 RC12, 2009 QK2, 2007 UY1, 420302, 414903, 285331, 27031, 163364, 162210, 154302, 141354, 112221
`B49`	Paus Obs. in Spain, 2 in MPECs 2020-U203 & 2020-U205 -- 2020 UQ1, 2020 UO4
`D29`	Purple Mtn. Obs. Xuyi Station in China, 4 in MPEC 2020-U205 -- 2020 UA1, 2018 GX4, 8567, 5645
`L18`	QOS Obs., 1 in MPEC 2020-U205 -- 2013 PY6
`L04`	ROASTERR-1 in Romania, 1 in MPEC 2020-U200 -- 2020 UM4
`K61`	Rokycany Obs. in the Czech Republic, 2 in MPECs 2020-U214 & 2020-U215 -- 2020 UX4, 2004 US1
`C95`	SATINO-1 in France, 2 in MPECs 2020-U205 & 2020-U214 -- 2007 UY1, 2004 US1
`W88'`	program code "'" (16) via Slooh.com Chile Obs. in Chile, 1 in MPEC 2020-U205 -- 2000 TU28
`291`	Spacewatch 1.8m telescope in Arizona, 5 in MPEC 2020-U205 -- 2018 VT6, 2018 VS, 2017 VV1, 2017 SV20, 2010 TP55
`W34`	Squirrel Valley Obs. in North Carolina, 4 in MPECs 2020-U202, 2020-U203, 2020-U205 & 2020-U210 -- 2020 UU4, 2020 UO4, 2020 UN4, 2017 UH5
`I52`	Steward Obs. Mt. Lemmon Station in Arizona, 13 in MPECs 2020-U200, 2020-U202, 2020-U203, 2020-U204, 2020-U205, 2020-U207, 2020-U208, 2020-U209, 2020-U210, 2020-U211 & 2020-U212 -- 2020 UX3, 2020 UW4, 2020 UV4, 2020 UU4, 2020 UT4, 2020 US4, 2020 UR4, 2020 UP4, 2020 UO4, 2020 UN4, 2020 UM4, 2020 TK6, 2020 RX3
`858`	Tebbutt Obs. in New Mexico, 4 in MPECs 2020-U200, 2020-U202, 2020-U205 & 2020-U211 -- 2020 UV4, 2020 UN4, 2020 UM4, 2212
`W33`	Transit Dreams Obs., 7 in MPECs 2020-U200, 2020-U202, 2020-U203, 2020-U205 & 2020-U210 -- 2020 UU4, 2020 UO4, 2020 UN4, 2020 UM4, 2020 QM4, 194126, 154302
`T12`	UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 2 in MPEC 2020-U205 -- 2019 UD8, 2018 AM12
`L01`	Visnjan Obs. in Croatia, 2 in MPECs 2020-U200 & 2020-U211 -- 2020 UV4, 2020 UM4
`C51`	WISE in Earth polar orbit, 4 in MPEC 2020-U205 -- 2013 GY7, 2003 OA3, 513125, 36284
`I41`	Zwicky Transient Facility (ZTF) in southern California, 12 in MPEC 2020-U205 -- 2020 UN3, 2020 RO9, 2020 QQ6, 2019 AQ3, 435404, 415029, 380359, 316695, 31669, 12711, 11398, 5587

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

Impact Risk Monitoring on 24 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	JPL Sentry	2358	2074-2120	22	1.31405877e-05	-5.39	-5.89	0	JPL: Computed at 16:32 today Pacific time based on 27 observations spanning 2.6795 days (2020-Oct-22.18386 to 2020-Oct-24.863311). Diameter approximately 0.027 km. from weighted mean H=25.49.

2020 UT4	NEODyS	2015	2045-2119	40	5.45e-05	-5.56	-5.96	0	NEODyS: "Based on 23 optical observations (of which 0 are rejected as outliers) from 2020-10-23.266 to 2020-10-24.356."
2020 UT4	JPL Sentry	1700	2045-2119	26	4.39258377e-05	-5.67	-6.11	0	JPL: Computed at 08:39 today Pacific time based on 23 observations spanning 1.0904 days (2020-Oct-23.265236 to 2020-Oct-24.355632). Diameter approximately 0.008 km. from weighted mean H=28.18.

2020 UQ4	JPL Sentry	1700	2115-2115	1	1.065e-10	-7.99	-7.99	0	JPL: Computed at 08:28 today Pacific time based on 16 observations spanning 13.028 days (2020-Oct-11.30751 to 2020-Oct-24.335169). Diameter approximately 0.320 km. from weighted mean H=20.14.

2020 UO4	NEODyS	2015	2103-2120	23	3.18e-05	-6.74	-6.93	n/a	NEODyS: "Based on 37 optical observations (of which 1 are rejected as outliers) from 2020-10-23.355 to 2020-10-24.114."
2020 UO4	JPL Sentry	0500	2088-2120	33	8.46963572e-05	-6.29	-6.57	0	JPL: Computed at 21:37 Oct. 23rd Pacific time based on 37 observations spanning .75883 days (2020-Oct-23.354363 to 2020-Oct-24.11319). Diameter approximately 0.006 km. from weighted mean H=28.58.

2020 UC4	NEODyS	2015	2090-2120	7	9.87e-08	-7.98	-8.09	n/a	NEODyS: "Based on 17 optical observations (of which 0 are rejected as outliers) from 2020-10-22.343 to 2020-10-23.469."

2020 UL3	NEODyS	2015	2111-2120	27	6.95e-06	-4.66	-4.92	n/a	NEODyS: "Based on 29 optical observations (of which 1 are rejected as outliers) from 2020-10-17.537 to 2020-10-23.439."
2020 UL3	JPL Sentry	1700	2117-2118	8	8.135357e-06	-4.59	-4.77	0	JPL: Computed at 08:53 today Pacific time based on 29 observations spanning 5.9020 days (2020-Oct-17.535831 to 2020-Oct-23.437852). Diameter approximately 0.076 km. from weighted mean H=23.24.

2020 UY	JPL Sentry	0500	2068-2119	12	2.25586e-06	-7.83	-8.49	0	JPL: Computed at 08:09 Oct. 20th 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 UJ	JPL Sentry	0500	2043-2043	1	5.266e-09	-7.42	-7.42	0	JPL: Computed at 10:07 Oct. 22nd Pacific time based on 24 observations spanning 11.796 days (2020-Oct-10.323552 to 2020-Oct-22.119114). Diameter approximately 0.051 km. from weighted mean H=24.11.

2020 UH	NEODyS	2015	2098-2119	5	8.26e-07	-6.14	-6.22	0	NEODyS: "Based on 58 optical observations (of which 2 are rejected as outliers) from 2020-10-15.309 to 2020-10-23.199."
2020 UH	JPL Sentry	1700	2098-2119	4	6.6076e-07	-6.19	-6.47	0	JPL: Computed at 08:50 today Pacific time based on 58 observations spanning 7.8899 days (2020-Oct-15.308398 to 2020-Oct-23.198272). Diameter approximately 0.044 km. from weighted mean H=24.45.

2020 UE	NEODyS	2015	2042-2120	48	2.67e-05	-4.83	-5.3	n/a	NEODyS: "Based on 125 optical observations (of which 0 are rejected as outliers) from 2020-10-15.470 to 2020-10-23.402."
2020 UE	JPL Sentry	1700	2042-2118	26	2.3561328e-05	-4.87	-5.41	0	JPL: Computed at 08:38 today Pacific time based on 125 observations spanning 7.9320 days (2020-Oct-15.46967 to 2020-Oct-23.40168). Diameter approximately 0.026 km. from weighted mean H=25.56.

2020 TD8	NEODyS	2015	2045-2096	32	1.6e-05	-5.70	-5.84	0	NEODyS: "Based on 40 optical observations (of which 1 are rejected as outliers) from 2020-10-15.323 to 2020-10-24.439."
2020 TD8	JPL Sentry	1700	2045-2096	15	1.113501e-05	-5.84	-5.95	0	JPL: Computed at 08:35 today Pacific time based on 40 observations spanning 9.1155 days (2020-Oct-15.322434 to 2020-Oct-24.437886). Diameter approximately 0.013 km. from weighted mean H=27.03.

2020 TK5	NEODyS	2015	2039-2061	12	5.62e-06	-4.39	-4.48	0	NEODyS: "Based on 82 optical observations (of which 0 are rejected as outliers) from 2020-10-14.332 to 2020-10-23.208."
2020 TK5	JPL Sentry	1700	2039-2056	7	1.013034e-05	-3.93	-4.07	0	JPL: Computed at 08:49 today Pacific time based on 82 observations spanning 8.8762 days (2020-Oct-14.331481 to 2020-Oct-23.207689). Diameter approximately 0.065 km. from weighted mean H=23.61.

2020 TY1	NEODyS	2015	2092-2120	12	2.31e-06	-4.71	-4.82	n/a	NEODyS: "Based on 70 optical observations (of which 0 are rejected as outliers) from 2020-10-08.411 to 2020-10-23.260."
2020 TY1	JPL Sentry	1700	2092-2113	4	5.49181e-07	-5.34	-5.60	0	JPL: Computed at 08:31 today Pacific time based on 70 observations spanning 14.849 days (2020-Oct-08.410259 to 2020-Oct-23.25909). Diameter approximately 0.100 km. from weighted mean H=22.61.

2017 UL5	JPL Sentry	0500	2100-2111	2	2.6497e-07	-7.56	-7.59	0	JPL: Computed at 07:51 Nov. 1st of 2017 Pacific time based on 39 observations spanning 9.0315 days (2017-Oct-22.4618 to 2017-Oct-31.49333). Diameter approximately 0.018 km. from weighted mean H=26.38.

2011 UM169	JPL Sentry	0500	2099-2107	19	3.3230941e-05	-4.65	-4.87	0	JPL: Computed at 05:35 April 9th of 2017 Pacific time based on 40 observations spanning 7.6624 days (2011-Oct-26.463709 to 2011-Nov-03.12613). Diameter approximately 0.033 km. from weighted mean H=25.05.

1997 UA11	JPL Sentry	0500	2073-2073	1	2.905e-07	-6.61	-6.61	0	JPL: Computed at 05:58 April 11th of 2017 Pacific time based on 29 observations spanning 12.938 days (1997-Oct-26.28929 to 1997-Nov-08.22721). Diameter approximately 0.032 km. from weighted mean H=25.12.

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 24 October '20

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

2358	Noted that JPL Sentry has posted 2020 UX4 as an impact risk - see above
2310	Grabbed MPEC 2020-U215 - 2020 UX4 - see above
2015	Noted that NEODyS has updated its 2020 TD8 risk assessment - see above Noted that NEODyS has updated its 2020 TK5 risk assessment - see above Noted that NEODyS has updated its 2020 TY1 risk assessment - see above Noted that NEODyS has posted 2020 UC4 as an impact risk - 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 UL3 risk assessment - see above Noted that NEODyS has posted 2020 UO4 as an impact risk - see above Noted that NEODyS has posted 2020 UT4 as an impact risk - see above
2005	Grabbed MPEC 2020-U214 - 2004 US1 - see above
1700	Noted that JPL Sentry has updated its 2020 TD8 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 TY1 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 UL3 risk assessment - see above Noted that JPL Sentry has posted 2020 UQ4 as an impact risk - see above Noted that JPL Sentry has posted 2020 UT4 as an impact risk - see above Grabbed MPEC 2020-U205 - Daily Orbit Update - see above Grabbed MPEC 2020-U206 - 2020 UQ4 - see above Grabbed MPEC 2020-U207 - 2020 UR4 - see above Grabbed MPEC 2020-U208 - 2020 US4 - see above Grabbed MPEC 2020-U209 - 2020 UT4 - see above Grabbed MPEC 2020-U210 - 2020 UU4 - see above Grabbed MPEC 2020-U211 - 2020 UV4 - see above Grabbed MPEC 2020-U212 - 2020 UW4 - see above Grabbed MPEC 2020-U213 - 2017 VU13 - see above
0500	Noted that JPL Sentry has updated its 1997 UA11 risk assessment - see above Noted that JPL Sentry has updated its 2011 UM169 risk assessment - see above Noted that JPL Sentry has updated its 2017 UL5 risk assessment - see above Noted that JPL Sentry has updated its 2020 UJ risk assessment - see above Noted that JPL Sentry has posted 2020 UO4 as an impact risk - see above Noted that JPL Sentry has updated its 2020 UY risk assessment - see above
0405	Grabbed MPEC 2020-U200 - 2020 UM4 - see above Grabbed MPEC 2020-U201 - 2017 WH1 = 2020 SU2 - see above Grabbed MPEC 2020-U202 - 2020 UN4 - see above Grabbed MPEC 2020-U203 - 2020 UO4 - see above Grabbed MPEC 2020-U204 - 2020 UP4 - see above

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