2020-06-21 Tracking News

Contents on 21 June '20

Radar Astrometry -- five objects
IAU Minor Planet Center
- NEOCP Activity -- 47 listings
- New MPECs -- fourteen MPECs
Observers -- 48 observers
Impact Risk Monitoring -- five objects
Chronology

Asteroid/Comet Connection (A/CC) Resources:

Consolidated Risk Tables - the CRT page
Of 1142 risk-listed objects, 877 have had news in the last 31 days. Updated at 2212 UTC on 21 June.
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.

Radar Astrometry on 21 June '20

Radar observation of five objects

The JPL Solar System Dynamics Group Radar Astrometry database has added or updated the following small-body radar observing work:

Data update noted at 0501 UTC when the database was dated 20 June

2020 HS6 from Arecibo (May 14.91 velocity & 14.93 range)

Data update noted at 1830 UTC when the database was dated 20 June

2020 KP3 (close passer) from Arecibo (May 26.17 velocity & 26.20 range)
2020 JF1 (close passer) from Arecibo (May 15.14 velocity, 15.15 range & 15.17 range)
2020 JY (close passer) from Arecibo (May 15.23 velocity)
2013 XA22 (close passer, NHATS target) from Arecibo (June 8.89 range) - NHATS

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

NEOCP Activity on 21 June '20

The MPC's NEO Confirmation Page has 47 listings

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 47 objects listed. Of these, 36 were "one nighters." So far The Tracking News has counted a total of 66 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 21 June '20

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there have been fourteen MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2020-M50 time-stamped "02:24 UT" - 2020 LG2 - see below
MPEC 2020-M51 time-stamped "11:37 UT" - 2020 MT - see below
MPEC 2020-M52 time-stamped "12:01 UT" - Daily Orbit Update - see below
MPEC 2020-M53 time-stamped "12:48 UT" - 2020 MV - see below
MPEC 2020-M54 time-stamped "14:40 UT" - 2020 LJ2 - see below
MPEC 2020-M55 time-stamped "14:43 UT" - 2020 LK2 - see below
MPEC 2020-M56 time-stamped "15:00 UT" - 2016 ED85 - see below
MPEC 2020-M57 time-stamped "15:00 UT" - 2019 GA - see below
MPEC 2020-M58 time-stamped "18:27 UT" - 2020 KZ7 - see below
MPEC 2020-M59 time-stamped "20:57 UT" - 2020 MX - see below
MPEC 2020-M60 time-stamped "20:59 UT" - 2020 MY - see below
MPEC 2020-M61 time-stamped "21:29 UT" - 2020 JW3 - see below
MPEC 2020-M62 time-stamped "22:36 UT" - 2020 MZ - see below
MPEC 2020-M63 time-stamped "22:38 UT" - 2020 MA1

MPEC 2020-M63 - "22:38 UT" - 2020 MA1

K20M01A 2020 MA1 (small asteroid, H=25.3 ~29m) was picked up at 0935 UT on 21 June by Pan-STARRS 1 (PS1), observing it at June 16.41-44p7, 19.40p1, and 21.40-44p4. This detection was confirmed by Ametlla del Valles Obs. (June 21.89-91p3) and ESA Optical Ground Station (ESA OGS) (June 21.90-91p3).

MPEC 2020-M62 - "22:36 UT" - 2020 MZ

K20M00Z 2020 MZ (small asteroid, Earth MOID=2.8 LD, H=25.8 ~23m) was picked up at 1128 UT on 20 June by ATLAS Mauna Loa, observing it at June 20.48-52p4. This detection was confirmed by Visnjan Obs. (June 20.86-87p8), Calar Alto Schmidt (June 20.88-89p4), Dax Obs. (June 20.92-94p3), San Marcello Pistoiese Obs. (June 20.92-93p3), Pascoli Obs. (June 20.92-94p3), Ametlla del Valles Obs. (June 20.95-96p3), St. Pardon de Conques Obs. (June 20.95-96p3), ESA OGS (June 20.99p2), Transit Dreams Obs. (June 21.10p3), Squirrel Valley Obs. (June 21.15-17p3), Sandlot Obs. (June 21.18-19p2), Tebbutt Obs. (June 21.20-22p4), Pomona College Table Mtn. Obs. (PCTMO) (June 21.36-40p3), and Xingming Obs. #3 (June 21.87p3).

MPEC 2020-M61 - "21:29 UT" - 2020 JW3

K20J03W 2020 JW3 (Q=4.177 AU, H=19.4 ~446m) was picked up at 0940 UT on 13 May by PS1, observing it at 2011 May 11.45-47p2 at G=20.2-21.8, 2016 Dec. 22.41p1 at G=21.9, 2017 Jan. 3.36-39p4 at G=23.2-24.0, March 29.61p1 at G=22.7, April 17.60p1 at G=23.4, 20.54-58p4 at G=21.8-22.5, 23.53-54p2 at G=21.9-22.5, May 13.40-44p3 at w=21.4-8, 18.49-50p2 at w=21.3-5, June 15.42-44p3 at G=21.8-22.3, and 21.40-44p4 at w=21.53-83. This detection was confirmed by the Spacewatch 0.9m telescope (2011 May 27.31-34p3) and Pan-STARRS 2 (PS2) (May 21.41-44p4 & 29.46-49p7).

MPEC 2020-M60 - "20:59 UT" - 2020 MY

K20M00Y 2020 MY (H=20.6 ~257m) was picked up at 1150 UT on 19 June by PS1, observing it at June 19.49-53p4. This detection was confirmed by San Marcello Pistoiese Obs. (June 19.92-94p3), St. Pardon de Conques Obs. (June 19.93-96p3), Ametlla del Valles Obs. (June 19.94-98p4), Schiaparelli Obs. (June 19.94-96p2), GiaGa Obs. (June 19.96-01p3), Calar Alto Schmidt (June 19.97-98p2), ESA OGS (June 19.99p2 & 20.99p3), Visnjan Obs. (June 19.99-00p6), Tebbutt Obs. (June 20.25-27p3 & 21.28-32p3), Astronomical Research Obs. Westfield (June 20.27p3), Pascoli Obs. (June 20.90p3), Sormano Obs. (June 20.91p2), Forti Obs. (June 20.92-93p3), and Dax Obs. (June 20.99-02p3).

MPEC 2020-M59 - "20:57 UT" - 2020 MX

K20M00X 2020 MX (small asteroid, H=24.0 ~54m) was picked up at 1351 UT on 16 June by PS1, observing it at June 16.58-60p3. This detection was confirmed by ESA OGS (June 19.17-19p3 & 21.08p2) and Mt. John Obs. (June 21.63-64p3).

MPEC 2020-M58 - "18:27 UT" - 2020 KZ7

K20K07Z 2020 KZ7 (small asteroid, H=22.25 ~120m) was picked up at 2251 UT on 31 May by WISE, observing it at May 31.95p1, June 1.08p1, 1.21p1, 1.28p1, and 1.41p1. This detection was confirmed by PS2 (June 21.58-60p3).

MPEC 2020-M57 - "15:00 UT" - 2019 GA

K19G00A 2019 GA (Earth MOID=7.2 LD, H=23.6 ~65m) from ESA OGS (June 19.91-92p3 & 20.91-93p2)

MPEC 2020-M56 - "15:00 UT" - 2016 ED85

K16E85D 2016 ED85 (Q=5.064 AU, H=17.7 ~977m) from ESA OGS (June 20.17-19p4 & 21.17-19p3)

MPEC 2020-M55 - "14:43 UT" - 2020 LK2

K20L02K 2020 LK2 (small asteroid, H=22.3 ~117m) was picked up at 1250 UT on 15 June by PS1, observing it at June 15.54-57p4 at w=21.83-22.30. This detection was confirmed by R. Wainscoat on Mauna Kea (June 17.53p3) and Mt. John Obs. (June 19.63-64p3 & 21.59-60p4).

MPEC 2020-M54 - "14:40 UT" - 2020 LJ2

K20L02J 2020 LJ2 (borderline-small, H=21.9 ~141m) was picked up at 1245 UT on 15 June by PS1, observing it at June 15.53-55p3 at w=21.94-22.29. This detection was confirmed by R. Wainscoat/Mauna Kea (June 16.60p3 at G=21.63-22.06) and Mt. John Obs. (June 19.59-61p4 & 21.57p3).

MPEC 2020-M53 - "12:48 UT" - 2020 MV

K20M00V 2020 MV (small asteroid, H=23.4 ~71m) was picked up at 0506 UT on 17 June by WISE, observing it at June 17.21p1, 17.34p1, 17.47p1, 17.61p1, 17.67p1, and 17.80p2. This detection was confirmed by UH/Tholen NEO Follow-Up CFH Telescope (June 21.27p3 at G=22.19-24).

<< DOU on 21 June '20 >> MPEC 2020-M52 - "12:01 UT" - Daily Orbit Update

Observations of risk-listed objects
K20M00L 2020 ML (small asteroid, arc=4 days, H=25.9 ~22m, NHATS target) from ESA OGS (June 20.97-98p2)
K20L01G 2020 LG1 (Q=4.569 AU, arc=20 days, H=20.2 ~309m) from ESA OGS (June 21.06-07p3)
K20L00V 2020 LV (small asteroid, arc=7 days, H=25.3 ~29m, close passer, NHATS target) from LCO Sutherland A (June 19.07p2) and ESA OGS (June 21.17p2)
Observation campaigns (NHATS targets, radar support)
K20L00R 2020 LR (arc=9 days, H=23.9 ~56m, NHATS) from PS2 (June 20.32-36p3)
K20J02Q 2020 JQ2 (arc=36 days, H=25.6 ~26m, NHATS) from Mt. John Obs. (June 20.51-52p3) and PS1 (June 20.53-56p4)
K01Q34C 2001 QC34 (arc=4 opp, H=20.2 ~309m, NHATS) from San Marcello Pistoiese Obs. (June 20.89-91p3)
J0166 190166 2005 UP156 (radar) from ATLAS Mauna Loa (June 20.28-30p4)
-- NHATS target table -- Planetary radar schedules: Arecibo & Goldstone
Observations of small (H>22.0) & smallish (21.7<H<=22.0) asteroids
K20M00K 2020 MK (arc=3 days, H=22.4 ~112m) from Mountainville Obs. (June 20.16-17p2), ATLAS Mauna Loa (June 20.43-48p4), and M57 Obs. (June 20.87-89p3)
K20M00E 2020 ME (arc=4 days, H=23.6 ~65m) from PCTMO (June 20.34-40p3)
K20L02G 2020 LG2 (arc=6 days, H=22.2 ~123m) from ESA OGS (June 21.12p3)
K20L00X 2020 LX (arc=6 days, H=24.8 ~37m) from PS2 (June 20.32-35p3)
K20L00C 2020 LC (arc=53 days, H=24.4 ~45m) from PS1 (May 29.38-43p3, June 7.53p1 & 19.54-57p4), PS2 (May 31.41-42p2, June 10.56-58p3, 11.54-55p2 & 20.54-57p3), St. Pardon de Conques Obs. (June 20.98-99p3), ESA OGS (June 20.99p3), Visnjan Obs. (June 21.01-02p5), Ametlla del Valles Obs. (June 21.04-06p6), and San Marcello Pistoiese Obs. (June 21.06p3)
K20H06H 2020 HH6 (arc=69 days, H=22.1 ~129m) from ATLAS Mauna Loa (June 20.46-49p4)
K20K05K 2020 KK5 (q=0.342 AU, arc=31 days, H=21.9 ~141m) from PS2 (June 21.28-31p3)
Observations of other objects
K20M00R 2020 MR (Q=4.728 AU, arc=31 days, H=20.4 ~282m) from ARO Westfield (June 20.35-37p3)
K20M00P 2020 MP (arc=5 days, H=20.9 ~224m) from ARO Westfield (June 20.32-34p3 at V=22.1-4)
K20M00G 2020 MG (arc=7 days, H=20.8 ~234m) from PCTMO (June 20.33-39p3)
K20L01Y 2020 LY1 (arc=6 days, H=21.4 ~178m) from ARO Westfield (June 20.30-32p3) and PS1 (June 20.48-52p3)
K20K07W 2020 KW7 (arc=21 days, H=19.7 ~389m) from PS1 (June 20.58-60p4)
K20K06G 2020 KG6 (q=0.191 AU, arc=25 days, H=19.2 ~490m) from Mt. John Obs. (June 20.34-35p4)
K20K05J 2020 KJ5 (arc=27 days, H=20.9 ~224m) from Mt. John Obs. (June 20.52-53p2)
K20H10O 2020 HO10 (arc=60 days, H=21.6 ~162m) from Farpoint Obs. (June 21.14-16p5)
K20D03B 2020 DB3 (arc=9 days, H=20.5 ~269m) from G. Gasparovic via Slooh.com Canary Islands Obs. (Feb. 26.21-24p3)
K20B12Z 2020 BZ12 (i=165.5°, Q=14.792 AU, arc=145 days, H=18.2 ~776m) from Hidetaka Sato via iTelescope Obs. Siding Spring (June 12.81-82p2)
K18B02Z 2018 BZ2 (arc=3 opp, H=20.4 ~282m) from NEAT's Mt. Palomar telescope (2002 Jan. 12.09-14p3)
K17U44X 2017 UX44 (arc=3 opp, H=19.7 ~389m) from Mt. John Obs. (June 20.43p2)
K17Q18M 2017 QM18 (arc=5 opp, H=18.6 ~645m) from Campo dos Amarais Obs. (June 20.03-06p3) and ATLAS Mauna Loa (June 20.30-33p4)
K15Y10P 2015 YP10 (arc=4 opp, H=20.2 ~309m) from ARO Westfield (June 20.30-31p3 at V=21.9-22.5)
K15H10H 2015 HH10 (arc=6 opp, H=18.2 ~776m) from ATLAS Mauna Loa (June 20.55-57p4)
K15FX2P 2015 FP332 (i=36.5°, Q=4.790 AU, arc=5 opp, H=17.3 ~1.17 km) from Visnjan Obs. (June 20.93p5)
K13O05N 2013 ON5 (arc=5 opp, H=18.7 ~616m) from ATLAS Mauna Loa (June 20.31-34p4)
K10JF3V 2010 JV153 (arc=3 opp, H=19.8 ~371m) from ATLAS Mauna Loa (June 20.43-47p6) and Visnjan Obs. (June 21.01-02p2)
K10ED5C 2010 EC135 (arc=3 opp, H=20.3 ~295m) from Visnjan Obs. (June 20.91-92p5)
K09Q34D 2009 QD34 (arc=4 opp, H=18.0 ~851m) from PS2 (June 21.28-31p4)
K07O00Y 2007 OY (arc=2 opp, H=20.7 ~245m) from PS2 (June 21.27-30p3)
K06H00B 2006 HB (arc=4 opp, H=18.9 ~562m) from the Zwicky Transient Facility (ZTF) (June 18.31-33p3, 20.35-36p4 & 20.46p1) and ATLAS Mauna Loa (June 20.45-47p5)
K04Q17D 2004 QD17 (arc=5 opp, H=19.8 ~371m) from ARO Westfield (June 20.35-37p3 at V=22.2-6)
K04L03U 2004 LU3 (arc=5 opp, H=18.4 ~708m) from ATLAS Mauna Loa (June 20.44-49p4)
K04F29F 2004 FF29 (arc=6 opp, H=18.0 ~851m) from PS2 (June 21.28-31p3)
K03O03C 2003 OC3 (arc=6 opp, H=18.8 ~589m) from San Marcello Pistoiese Obs. (June 21.00-01p2)
K03M02S 2003 MS2 (arc=3 opp, H=21.2 ~195m) from San Marcello Pistoiese Obs. (June 20.96-97p3)
K03B47K 2003 BK47 (Q=4.689 AU, arc=4 opp, H=17.8 ~933m) from San Marcello Pistoiese Obs. (June 20.98-99p3)
K02V85R 2002 VR85 (arc=3 opp, H=20.3 ~295m) from PS2 (June 21.33-37p4)
q3670 523670 2013 EP41 from PS1 (June 20.35-39p4)
p1523 511523 2014 QS439 from ATLAS Mauna Loa (June 20.28-30p4)
n5891 495891 2004 VS60 from PS2 (June 21.33-36p4)
n4706 494706 2005 GL9 from ATLAS Mauna Loa (June 20.31-34p4)
l7885 477885 2011 JT9 from Cosmos Obs. (June 20.90-91p6), Foxfire Village Obs. (June 21.09-12p3), and ATLAS Mauna Loa (June 21.38-44p4)
l1956 471956 2013 SC25 from PS2 (June 20.54-59p3)
h6030 436030 2009 JO2 from PS1 (June 20.35-39p4)
g8086 428086 2006 NM from ATLAS Mauna Loa (June 20.55-57p4)
c0128 380128 1997 WB21 from ATLAS Mauna Loa (June 20.51-53p4)
a8949 368949 2006 YN from PS2 (June 21.34-37p3)
Z4952 354952 2006 FJ9 from ATLAS Mauna Loa (June 20.53-55p4)
X3555 333555 2005 VY17 from ATLAS Mauna Loa (June 20.31-33p4)
X1471 331471 1984 QY1 from ATLAS Mauna Loa (June 20.39-43p4), Cosmos Obs. (June 20.92-93p8), and Foxfire Village Obs. (June 21.07-11p3)
O1662 241662 2000 KO44 from ATLAS Mauna Loa (June 20.58-61p4)
K0840 200840 2001 XN254 from PS1 (June 20.58-60p3)
I4990 184990 2006 KE89 from Forti Obs. (June 20.89p3)
H5189 175189 2005 EC224 from MASTER OAFA Obs. (June 20.04-07p4), ATLAS Mauna Loa (June 20.34-37p4), and PS2 (June 21.32-35p3)
G3348 163348 2002 NN4 from ATLAS Mauna Loa (June 20.39-43p4) and Foxfire Village Obs. (June 21.07-09p2)
F9608 159608 2002 AC2 from ATLAS Mauna Loa (June 20.55-57p4)
F4278 154278 2002 TB9 from Forti Obs. (June 20.90p3)
D7802 137802 1999 YT from ATLAS Mauna Loa (June 20.40-44p4)
D7199 137199 1999 KX4 from Northolt Branch Obs. (June 20.91-92p3)
D6923 136923 1998 JH2 from ATLAS Mauna Loa (June 20.30-32p4)
D6839 136839 1997 WT22 from PS1 (June 20.54-57p4)
A5140 105140 2000 NL10 from ATLAS Haleakala (June 20.59-61p4)
99935 99935 2002 AV4 from Campo dos Amarais Obs. (June 19.92-96p3)
87311 87311 2000 QJ1 from ATLAS Mauna Loa (June 20.55-57p4)
85275 85275 1994 LY from JPL SynTrack Robotic Telescope (June 19.43-46p6 & 20.39-40p4), Dark Sky New Mexico Obs. (June 20.19-25p3 & 21.23-29p3), Northolt Branch Obs. (June 20.93p3), and Squirrel Valley Obs. (June 21.20-22p4)
68348 68348 2001 LO7 from ATLAS Mauna Loa (June 20.38-43p4)
66251 66251 1999 GJ2 from ATLAS Mauna Loa (June 20.31-33p4) and Cosmos Obs. (June 20.87-88p3)
54789 54789 2001 MZ7 from ATLAS Mauna Loa (June 20.51-53p4)
54401 54401 2000 LM from ATLAS Mauna Loa (June 20.30-33p4)
19764 19764 2000 NF5 from ATLAS Mauna Loa (June 20.56-58p4)
10145 10145 1994 CK1 from SATINO-1 (2019 Oct. 30.10-12p3)
08014 8014 1990 MF from MASTER IAC Obs. (June 19.99p2) and ATLAS Mauna Loa (June 20.34-37p6)
07977 7977 1977 QQ5 from ATLAS Mauna Loa (June 20.40-41p3)
06569 6569 Ondaatje (1993 MO) from ATLAS Mauna Loa (June 20.41-50p6)
06050 6050 Miwablock (1992 AE) from MASTER-II Sutherland (June 19.89-90p3) and ATLAS Mauna Loa (June 20.34-37p4)
05751 5751 Zao (1992 AC) from ATLAS Mauna Loa (June 20.46-49p4) and PS2 (June 20.54-56p3)
03752 3752 Camillo (1985 PA) from ATLAS Haleakala (June 20.49-50p4)
01943 1943 Anteros (1973 EC) from Hidetaka Sato via iTelescope Obs. Mayhill (2009 Aug. 2.42p2)
01917 1917 Cuyo (1968 AA) from ATLAS Mauna Loa (June 20.34-37p4)
01685 1685 Toro (1948 OA) from ATLAS Mauna Loa (June 20.53-56p4)
00887 887 Alinda (1918 DB) from ATLAS Mauna Loa (June 20.57-61p8)

MPEC 2020-M51 - "11:37 UT" - 2020 MT

K20M00T 2020 MT (small asteroid, Earth MOID=4.1 LD, H=26.1 ~20m) was picked up at 1345 UT on 20 June by PS1, observing it at June 17.55-58p3 and 20.57-60p3. This detection was confirmed by PS2 (June 20.56-59p2), ESA OGS (June 21.05-06p3), Ametlla del Valles Obs. (June 21.09-11p2), and Sandlot Obs. (June 21.35-37p2).

MPEC 2020-M50 - "02:24 UT" - 2020 LG2

K20L02G 2020 LG2 (small asteroid, H=22.3 ~117m) was picked up at 1341 UT on 15 June by ATLAS Mauna Loa, observing it at June 15.57-60p4 and 20.56-59p4. This detection was confirmed by Visnjan Obs. (June 21.06-07p13) and St. Pardon de Conques Obs. (June 21.07-08p3).

Observers on 21 June '20

A total of 48 observers appear in today's MPECs.

Code	Observer / observatory
`B37`	Ametlla del Valles Obs. in Spain, 5 in MPECs 2020-M51, 2020-M52, 2020-M60, 2020-M62 & 2020-M63 -- 2020 MZ, 2020 MY, 2020 MT, 2020 MA1, 2020 LC
`251`	Arecibo in Puerto Rico, 5 in radar -- 2020 KP3, 2020 JY, 2020 JF1, 2020 HS6, 2013 XA22
`H21`	Astronomical Research Obs. Westfield in Illinois, 6 in MPECs 2020-M52 & 2020-M60 -- 2020 MY, 2020 MR, 2020 MP, 2020 LY1, 2015 YP10, 2004 QD17
`T05`	ATLAS Haleakala in Hawaii, 2 in MPEC 2020-M52 -- 105140, 3752
`T08`	ATLAS Mauna Loa in Hawaii, 39 in MPECs 2020-M50, 2020-M52 & 2020-M62 -- 2020 MZ, 2020 MK, 2020 LG2, 2020 HH6, 2017 QM18, 2015 HH10, 2013 ON5, 2010 JV153, 2006 HB, 2004 LU3, 87311, 68348, 66251, 54789, 54401, 511523, 494706, 477885, 428086, 380128, 354952, 333555, 331471, 241662, 19764, 190166, 175189, 163348, 159608, 137802, 136923, 8014, 7977, 6569, 6050, 5751, 1917, 1685, 887
`Z84`	Calar Alto Schmidt in Spain, 2 in MPECs 2020-M60 & 2020-M62 -- 2020 MZ, 2020 MY
`X74`	Campo dos Amarais Obs., 2 in MPEC 2020-M52 -- 2017 QM18, 99935
`Z45`	Cosmos Obs., 3 in MPEC 2020-M52 -- 66251, 477885, 331471
`V16`	Dark Sky New Mexico Obs. in New Mexico, 1 in MPEC 2020-M52 -- 85275
`958`	Dax Obs. in France, 2 in MPECs 2020-M60 & 2020-M62 -- 2020 MZ, 2020 MY
`J04`	ESA Optical Ground Station (ESA OGS) in the Canary Islands, 12 in MPECs 2020-M51, 2020-M52, 2020-M56, 2020-M57, 2020-M59, 2020-M60, 2020-M62 & 2020-M63 -- 2020 MZ, 2020 MY, 2020 MX, 2020 MT, 2020 ML, 2020 MA1, 2020 LV, 2020 LG2, 2020 LG1, 2020 LC, 2019 GA, 2016 ED85
`734`	Farpoint Obs. in Kansas, 1 in MPEC 2020-M52 -- 2020 HO10
`K83`	Forti Obs., 3 in MPECs 2020-M52 & 2020-M60 -- 2020 MY, 184990, 154278
`W46`	Foxfire Village Obs., 3 in MPEC 2020-M52 -- 477885, 331471, 163348
`203`	GiaGa Obs. in Italy, 1 in MPEC 2020-M60 -- 2020 MY
`H06\|`	Hidetaka Sato in Japan via iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2020-M52 -- 1943
`Q621`	Hidetaka Sato in Japan via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-M52 -- 2020 BZ12
`U68`	JPL SynTrack Robotic Telescope, 1 in MPEC 2020-M52 -- 85275
`K91`	LCO Sutherland A in South Africa, 1 in MPEC 2020-M52 -- 2020 LV
`K38`	M57 Obs. in Italy, 1 in MPEC 2020-M52 -- 2020 MK
`Z22`	MASTER IAC Obs. in the Canary Islands, 1 in MPEC 2020-M52 -- 8014
`W92`	MASTER OAFA Obs., 1 in MPEC 2020-M52 -- 175189
`K95`	MASTER-II Sutherland in South Africa, 1 in MPEC 2020-M52 -- 6050
`568^`	R. Wainscoat on Mauna Kea in Hawaii, 2 in MPECs 2020-M54 & 2020-M55 -- 2020 LK2, 2020 LJ2
`V01`	Mountainville Obs. in Utah, 1 in MPEC 2020-M52 -- 2020 MK
`474`	Mt. John Obs. in New Zealand, 7 in MPECs 2020-M52, 2020-M54, 2020-M55 & 2020-M59 -- 2020 MX, 2020 LK2, 2020 LJ2, 2020 KJ5, 2020 KG6, 2020 JQ2, 2017 UX44
`644`	NEAT's Mt. Palomar telescope in southern California, 1 in MPEC 2020-M52 -- 2018 BZ2
`Z80`	Northolt Branch Obs. in England, 2 in MPEC 2020-M52 -- 85275, 137199
`F51`	Pan-STARRS 1 (PS1) in Hawaii, 15 in MPECs 2020-M51, 2020-M52, 2020-M54, 2020-M55, 2020-M59, 2020-M60, 2020-M61 & 2020-M63 -- 2020 MY, 2020 MX, 2020 MT, 2020 MA1, 2020 LY1, 2020 LK2, 2020 LJ2, 2020 LC, 2020 KW7, 2020 JW3, 2020 JQ2, 523670, 436030, 200840, 136839
`F52`	Pan-STARRS 2 (PS2) in Hawaii, 16 in MPECs 2020-M51, 2020-M52, 2020-M58 & 2020-M61 -- 2020 MT, 2020 LX, 2020 LR, 2020 LC, 2020 KZ7, 2020 KK5, 2020 JW3, 2009 QD34, 2007 OY, 2004 FF29, 2002 VR85, 495891, 471956, 368949, 175189, 5751
`K63`	Pascoli Obs. in Italy, 2 in MPECs 2020-M60 & 2020-M62 -- 2020 MZ, 2020 MY
`654`	Pomona College Table Mtn. Obs. (PCTMO) in southern California, 3 in MPECs 2020-M52 & 2020-M62 -- 2020 MZ, 2020 MG, 2020 ME
`104`	San Marcello Pistoiese Obs. in Italy, 7 in MPECs 2020-M52, 2020-M60 & 2020-M62 -- 2020 MZ, 2020 MY, 2020 LC, 2003 OC3, 2003 MS2, 2003 BK47, 2001 QC34
`H36`	Sandlot Obs. in Kansas, 2 in MPECs 2020-M51 & 2020-M62 -- 2020 MZ, 2020 MT
`C95`	SATINO-1 in France, 1 in MPEC 2020-M52 -- 10145
`204`	Schiaparelli Obs. in Italy, 1 in MPEC 2020-M60 -- 2020 MY
`G40"`	G. Gasparovic in Croatia via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2020-M52 -- 2020 DB3
`587`	Sormano Obs. in Italy, 1 in MPEC 2020-M60 -- 2020 MY
`691`	Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2020-M61 -- 2020 JW3
`W34`	Squirrel Valley Obs. in North Carolina, 2 in MPECs 2020-M52 & 2020-M62 -- 2020 MZ, 85275
`I93`	St. Pardon de Conques Obs. in France, 4 in MPECs 2020-M50, 2020-M52, 2020-M60 & 2020-M62 -- 2020 MZ, 2020 MY, 2020 LG2, 2020 LC
`858`	Tebbutt Obs. in New Mexico, 2 in MPECs 2020-M60 & 2020-M62 -- 2020 MZ, 2020 MY
`W33`	Transit Dreams Obs., 1 in MPEC 2020-M62 -- 2020 MZ
`T14`	UH/Tholen NEO Follow-Up CFH Telescope in Hawaii, 1 in MPEC 2020-M53 -- 2020 MV
`L01`	Visnjan Obs. in Croatia, 7 in MPECs 2020-M50, 2020-M52, 2020-M60 & 2020-M62 -- 2020 MZ, 2020 MY, 2020 LG2, 2020 LC, 2015 FP332, 2010 JV153, 2010 EC135
`C51`	WISE in Earth polar orbit, 2 in MPECs 2020-M53 & 2020-M58 -- 2020 MV, 2020 KZ7
`N88`	Xingming Obs. #3, 1 in MPEC 2020-M62 -- 2020 MZ
`I41`	Zwicky Transient Facility in southern California, 1 in MPEC 2020-M52 -- 2006 HB

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

Impact Risk Monitoring on 21 June '20

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS at 2359 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 ML	NEODyS	2208	R E M O V E D						-

2020 LG1	NEODyS	2208	2055-2091	2	4.88e-08	-5.03	-5.06	0	NEODyS: "Based on 37 optical observations (of which 0 are rejected as outliers) from 2020-06-01.557 to 2020-06-21.074."

2020 LV	NEODyS	2208	2089-2118	18	1.22e-05	-5.53	-5.56	0	NEODyS: "Based on 37 optical observations (of which 0 are rejected as outliers) from 2020-06-14.384 to 2020-06-21.169."
2020 LV	JPL Sentry	1830	2097-2114	4	5.703132e-06	-5.85	-5.95	0	JPL: Computed at 06:42 today Pacific time based on 37 observations spanning 6.7850 days (2020-Jun-14.38305 to 2020-Jun-21.16805). Diameter approximately 0.030 km. from weighted mean H=25.27.

2017 AT20	JPL Sentry	1830	2039-2116	231	5.3083219e-06	-6.49	-6.95	0	JPL: Computed at 19:18 April 9th of 2017 Pacific time based on 6 observations spanning 1.0436 days (2017-Jan-03.37171 to 2017-Jan-04.415357). Diameter approximately 0.013 km. from weighted mean H=27.13.

2008 KN11	JPL Sentry	1830	2046-2046	1	3.601e-08	-6.26	-6.26	0	JPL: Computed at 07:33 April 14th of 2017 Pacific time based on 132 observations spanning 21.819 days (2008-May-30.33435 to 2008-Jun-21.152984). Diameter approximately 0.075 km. from weighted mean H=23.27.

Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale (next 100 years)

An impact solution, also known as a "virtual impactor" (VI), is not a prediction but rather a possibility derived from a variant orbit calculation that cannot be eliminated yet based on the existing data. Elimination can come quickly with just a little further observation or may take weeks or months, sometimes years. Once superceded or eliminated, a former impact solution has zero relevance to an object's risk. See Jon Giorgini's "Understanding Risk Pages" to learn more.

Chronology on 21 June '20

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

2332	Grabbed MPEC 2020-M62 - 2020 MZ - see above Grabbed MPEC 2020-M63 - 2020 MA1 - see above
2208	Noted that NEODyS has updated its 2020 LG1 risk assessment - see above Noted that NEODyS has updated its 2020 LV risk assessment - see above Noted that NEODyS has removed 2020 ML as an impact risk - see above Grabbed MPEC 2020-M59 - 2020 MX - see above Grabbed MPEC 2020-M60 - 2020 MY - see above Grabbed MPEC 2020-M61 - 2020 JW3 - see above
1830	Noted that JPL Sentry has updated its 2008 KN11 risk assessment - see above Noted that JPL Sentry has updated its 2017 AT20 risk assessment - see above Noted that JPL Sentry has updated its 2020 LV risk assessment - see above Grabbed MPEC 2020-M51 - 2020 MT - see above Grabbed MPEC 2020-M52 - Daily Orbit Update - see above Grabbed MPEC 2020-M53 - 2020 MV - see above Grabbed MPEC 2020-M54 - 2020 LJ2 - see above Grabbed MPEC 2020-M55 - 2020 LK2 - see above Grabbed MPEC 2020-M56 - 2016 ED85 - see above Grabbed MPEC 2020-M57 - 2019 GA - see above Grabbed MPEC 2020-M58 - 2020 KZ7 - see above Noted Radar Astrometry database update - see above
0501	Noted Radar Astrometry database update - see above
0400	Grabbed MPEC 2020-M50 - 2020 LG2 - see above

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