2020-06-16 Tracking News

Contents on 16 June '20

IAU Minor Planet Center
- NEOCP Activity -- 64 listings
- New MPECs -- six MPECs
Observers -- 33 observers
Impact Risk Monitoring -- four objects
Chronology

Asteroid/Comet Connection (A/CC) Resources:

Consolidated Risk Tables - the CRT page
Of 1143 risk-listed objects, 880 have had news in the last 31 days. Updated at 1715 UTC on 16 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.

NEOCP Activity on 16 June '20

The MPC's NEO Confirmation Page has 64 listings

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 64 objects listed. Of these, 37 were "one nighters." So far The Tracking News has counted a total of 75 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 16 June '20

Minor Planet Electronic Circulars

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

MPEC 2020-M01 time-stamped "05:19 UT" - 2020 LX - see below
MPEC 2020-M02 time-stamped "05:22 UT" - 2020 LY - see below
MPEC 2020-M03 time-stamped "12:05 UT" - Daily Orbit Update - see below
MPEC 2020-M04 time-stamped "15:33 UT" - 2020 LB1 - see below
MPEC 2020-M05 time-stamped "21:35 UT" - 2020 LC1 - see below
MPEC 2020-M06 time-stamped "22:12 UT" - 2020 LD1

MPEC 2020-M06 - "22:12 UT" - 2020 LD1

K20L01D 2020 LD1 (small asteroid, H=25.3 ~29m) was picked up at 0751 UT on 14 June by Pan-STARRS 1 (PS1), observing it at June 14.33-36p3. This detection was confirmed by LCO Sutherland B (June 14.99p4), Xingming Obs. #3 (June 15.68p2), Farpoint Obs. (June 16.16-17p4), and Astronomical Research Obs. Westfield (June 16.17-18p3).

MPEC 2020-M05 - "21:35 UT" - 2020 LC1

K20L01C 2020 LC1 (H=18.7 ~616m) was picked up at 1455 UT on 1 June by WISE, observing it at June 1.62p1, 1.69p1, 1.82p1, 2.08p1, 2.21p1, 2.28p1, 2.34p1, 2.67p1, 2.80p1, 2.86p1, 2.99p1, 13.59p1, 13.85p1, 13.98p1, 14.37p1, and 14.64p1.

MPEC 2020-M04 - "15:33 UT" - 2020 LB1

K20L01B 2020 LB1 (borderline-small, Q=4.169 AU, H=21.9 ~141m) was picked up at 0911 UT on 13 June by Pan-STARRS 2 (PS2), observing it at June 13.38-43p3. This detection was confirmed by Visnjan Obs. (June 13.89-91p3), Great Shefford Obs. (June 14.04-06p3), Farpoint Obs. (June 14.20-23p3), Mt. John Obs. (June 14.54p3), St. Pardon de Conques Obs. (June 14.94-95p3), and the Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) (June 16.25-26p4).

<< DOU on 16 June '20 >> MPEC 2020-M03 - "12:05 UT" - Daily Orbit Update

Observations of risk-listed objects
K20L00O 2020 LO (small asteroid, arc=4 days, H=26.8 ~15m, close passer, NHATS target) from CSS-Kuiper (June 13.36p4 at G=20.7-21.5 & 16.24-25p4 at G=21.3-22.6)
K20L00D 2020 LD (small asteroid, q=0.242 AU, arc=7 days, H=22.4 ~112m, close passer) from Marian Urbanik via iTelescope Obs. Siding Spring (June 8.42-43p9)
Observations of recently (no longer) risk-listed objects
K20J03U 2020 JU3 (small asteroid, Q=4.020 AU, arc=31 days, H=24.0 ~54m, close passer) from LCO Sutherland C (June 15.75-76p4)
K20J01X 2020 JX1 (small asteroid, arc=33 days, H=23.8 ~59m, close passer, NHATS target) from ATLAS Mauna Loa (June 15.28-30p4) and LCO Sutherland A (June 15.87-88p3)
Observations of close-passing objects
K20K06P 2020 KP6 (arc=28 days, H=24.8 ~37m) from Northolt Branch Obs. (June 14.94-95p3)
K20K05V 2020 KV5 (arc=21 days, H=24.2 ~49m) from CSS-Kuiper (June 16.36-37p4)
Observation campaigns (NHATS targets, radar support)
K20K07Q 2020 KQ7 (arc=18 days, H=26.6 ~16m, NHATS) from PS1 (June 15.42-43p2)
K20K05R 2020 KR5 (arc=21 days, H=22.3 ~117m, NHATS) from Pomona College Table Mtn. Obs. (PCTMO) (June 14.39-42p2)
K20K01V 2020 KV1 (arc=26 days, H=26.2 ~19m, NHATS) from PS1 (June 15.49-51p3)
02102 2102 Tantalus (1975 YA) (radar) from ATLAS Mauna Loa (June 15.52-53p4)
-- NHATS target table -- Planetary radar schedules: Arecibo & Goldstone
Observations of small (H>22.0) & smallish (21.7<H<=22.0) asteroids
K20L00Y 2020 LY (Q=4.066 AU, arc=2 days, H=23.6 ~65m) from Sandlot Obs. (June 16.23p2)
K20L00S 2020 LS (arc=2 days, H=23.4 ~71m) from PS2 (June 15.37-41p4)
K20L00Q 2020 LQ (arc=4 days, H=25.1 ~32m) from PS1 (June 15.32-34p4)
K20L00N 2020 LN (arc=4 days, H=23.6 ~65m) from PS2 (June 15.37-41p4)
K20L00C 2020 LC (arc=46 days, H=24.4 ~45m) from PCTMO (June 14.38-45p3)
K20K05A 2020 KA5 (arc=26 days, H=23.7 ~62m) from PS2 (June 15.48-52p4)
K20K02Y 2020 KY2 (arc=32 days, H=23.4 ~71m) from PS1 (June 15.32-35p3)
K20K01C 2020 KC1 (arc=55 days, H=22.1 ~129m) from PS1 (June 15.41-44p3)
K20J02T 2020 JT2 (arc=31 days, H=23.2 ~78m) from PS2 (June 15.32-35p3)
K20J01P 2020 JP1 (arc=34 days, H=22.1 ~129m) from CSS-Kuiper (June 16.31-32p4)
K20J00T 2020 JT (arc=46 days, H=22.3 ~117m) from CSS-Kuiper (June 16.35-36p4)
K20H10S 2020 HS10 (arc=59 days, H=23.8 ~59m) from PS2 (June 15.37-40p3)
K20H06H 2020 HH6 (arc=64 days, H=22.1 ~129m) from Northolt Branch Obs. (June 14.95-96p3)
K20F03A 2020 FA3 (arc=86 days, H=23.4 ~71m) from CSS-Kuiper (June 16.33-34p3 at G=21.7-23.1)
K14Qd0L 2014 QL390 (arc=5 opp, H=22.1 ~129m) from PS1 (June 15.54-56p3 at w=21.7-22.2)
K20K05K 2020 KK5 (q=0.342 AU, arc=26 days, H=21.9 ~141m) from CSS-Kuiper (June 16.26-27p4)
K20K03M 2020 KM3 (arc=33 days, H=22.0 ~135m) from PS2 (June 15.32-36p7)
K20H09T 2020 HT9 (arc=54 days, H=21.8 ~148m) from CSS-Kuiper (June 16.27-28p4 at G=21.4-22.6)
Observations of other objects
K20K07E 2020 KE7 (Q=4.110 AU, arc=17 days, H=20.9 ~224m) from WISE (June 13.84p1, 13.98p1, 14.04p1, 14.11p1, 14.17p1 & 14.30p1)
K20K07C 2020 KC7 (i=50.5°, Q=4.090 AU, arc=17 days, H=20.9 ~224m) from Northolt Branch Obs. (June 14.99p2)
K20K05Q 2020 KQ5 (Q=4.702 AU, arc=21 days, H=20.2 ~309m) from PS2 (June 15.35-36p2)
K20H10O 2020 HO10 (arc=54 days, H=21.5 ~170m) from PS2 (June 15.42-46p4)
K20H08S 2020 HS8 (arc=51 days, H=21.3 ~186m) from Farpoint Obs. (June 16.27-29p3)
K20H05H 2020 HH5 (Q=4.515 AU, arc=58 days, H=19.2 ~490m) from CSS-Kuiper (June 16.28p4)
K20H02B 2020 HB2 (arc=61 days, H=20.5 ~269m) from CSS-Kuiper (June 16.34-35p4)
K20F03W 2020 FW3 (arc=86 days, H=21.1 ~204m) from the Zwicky Transient Facility (ZTF) (June 15.31-33p4)
K18A00X 2018 AX (arc=2 opp, H=20.9 ~224m) from PS1 (June 15.53-56p4)
K17X62B 2017 XB62 (arc=3 opp, H=20.0 ~339m) from PS1 (June 15.41-44p4 at w=21.9-22.1)
K17Q18M 2017 QM18 (arc=5 opp, H=18.6 ~645m) from ATLAS Mauna Loa (June 15.32-34p3) and PS2 (June 16.27-30p3)
K17M04A 2017 MA4 (arc=3 opp, H=18.6 ~645m) from PS2 (June 15.38-41p4)
K17M00E 2017 ME (i=41.4°, arc=3 opp, H=17.9 ~891m) from ATLAS Mauna Loa (June 15.39-44p4)
K17A03V 2017 AV3 (i=36.5°, arc=4 opp, H=19.5 ~426m) from CSS-Kuiper (June 16.28-29p4 at G=21.8-22.6)
K16AE7X 2016 AX147 (arc=4 opp, H=17.8 ~933m) from ATLAS Mauna Loa (June 15.27-29p4)
K15VE2U 2015 VU142 (arc=2 opp, H=19.5 ~426m) from PS1 (June 15.37-39p3)
K15FX2P 2015 FP332 (i=36.5°, Q=4.790 AU, arc=5 opp, H=17.3 ~1.17 km) from ATLAS Haleakala (June 15.37-41p4)
K14L26Q 2014 LQ26 (Q=5.151 AU, arc=2 opp, H=18.2 ~776m) from WISE (June 13.45p1, 13.58p2, 13.71p1, 13.84p1, 13.97p1, 14.10p1, 14.36p1, 14.49p1, 14.62p1, 14.75p1 & 14.89p1)
K10JF3V 2010 JV153 (arc=3 opp, H=19.7 ~389m) from ZTF (June 14.25p1, 14.34p1, 14.40p1 & 14.46p1) and Farpoint Obs. (June 16.34-35p5)
K10ED5C 2010 EC135 (arc=3 opp, H=20.3 ~295m) from PS1 (June 15.41-44p3) and Farpoint Obs. (June 16.24-26p5)
K06F36G 2006 FG36 (arc=4 opp, H=18.8 ~589m) from PS1 (June 15.51-52p3)
K05M05R 2005 MR5 (arc=3 opp, H=20.5 ~269m) from Northolt Branch Obs. (June 15.95-96p4)
K04H39C 2004 HC39 (arc=20 days, H=21.5 ~170m) from Robert Hutsebaut via iTelescope Obs. Mayhill (2004 April 26.37p2)
q3707 523707 2014 JM25 from PS1 (June 15.57-60p4)
o6459 506459 2002 AL14 from ATLAS Haleakala (June 15.59-61p4)
o3960 503960 2004 QF1 from ATLAS Mauna Loa (June 15.58-61p4)
n5615 495615 2015 PQ291 from PESCOPE (May 25.74p1 & 25.79p1) and WISE (June 11.59p1, 11.85p1, 11.98p2, 12.05p1, 12.11p1, 12.18p1 & 12.24p1)
n4706 494706 2005 GL9 from MASTER-II Sutherland (June 14.86p2)
n0684 490684 2010 LL34 from PS2 (June 15.42-45p3)
l1956 471956 2013 SC25 from PS2 (June 15.54-57p3)
k7963 467963 2012 JT17 from Northolt Branch Obs. (June 15.94-97p2)
h3992 433992 2000 HD74 from PESCOPE (May 24.76-81p3)
g0302 420302 2011 XZ1 from ATLAS Mauna Loa (June 15.51-53p4)
f6224 416224 2002 XM90 from PS1 (June 15.50-52p4)
e5212 405212 2003 QC10 from PS1 (June 15.53-56p4)
c2503 382503 2001 RE8 from PESCOPE (June 13.78-82p6)
a8949 368949 2006 YN from PS2 (June 15.37-40p4)
Z7024 357024 1999 YR14 from PS1 (June 15.36-39p3)
X1471 331471 1984 QY1 from Rani Obs. (May 31.23-24p3 & June 8.20-21p3)
S5339 285339 1999 JR6 from PS1 (June 15.32-35p3)
R5976 275976 2001 XV10 from PS2 (June 16.28-31p3)
Q7136 267136 2000 EF104 from ATLAS Mauna Loa (June 15.47-48p4)
L8863 218863 2006 WO127 from PS2 (June 15.38-40p3)
I4990 184990 2006 KE89 from Deerlick Obs. (May 13.20-24p3) and ATLAS Haleakala (June 15.33p1)
H5729 175729 1998 BB10 from PS2 (June 15.27-31p2)
H5189 175189 2005 EC224 from Ondrejov Obs. (May 31.86-92p4)
G3348 163348 2002 NN4 from W.F. Cashwell via Slooh.com Chile Obs. (June 15.21-24p3), ATLAS Mauna Loa (June 15.45-52p4), and program code 1 via Kuban State Univ. Obs. (June 15.81-86p18)
G2723 162723 2000 VM2 from PS1 (June 15.57-60p4)
G2566 162566 2000 RJ34 from PS1 (June 15.54-57p4)
G2157 162157 1999 CV8 from PS1 (June 15.41-44p4)
F9929 159929 2005 UK from ATLAS Haleakala (June 15.29-31p4)
F4278 154278 2002 TB9 from ATLAS Haleakala (June 15.27-29p4)
F3591 153591 2001 SN263 from PS1 (June 15.57-59p3)
F2964 152964 2000 GP82 from PS2 (June 15.38-41p4)
E4411 144411 2004 EW9 from PESCOPE (May 5.78-79p3 & 11.71-74p3)
D7911 137911 2000 AB246 from ATLAS Mauna Loa (June 15.35-37p4) and PS1 (June 15.36-39p4)
D7199 137199 1999 KX4 from Ondrejov Obs. (June 11.85p1, 11.90-94p2, 11.98p1 & 12.02p1), Cherokee Ridge Obs. (June 15.15-19p3), and Kuban State Univ. Obs./code 1 (June 15.77-80p33 & 15.87-89p9)
D6874 136874 1998 FH74 from PS2 (June 15.42-46p4)
D6839 136839 1997 WT22 from PS1 (June 15.53-54p2)
A6589 106589 2000 WN107 from Cherokee Ridge Obs. (June 15.14-15p2) and ATLAS Haleakala (June 15.31-33p4)
99935 99935 2002 AV4 from PESCOPE (May 5.85-86p3 & 14.68-71p3)
90147 90147 2002 YK14 from ATLAS Mauna Loa (June 15.52-53p4) and PS1 (June 15.53-56p3)
86667 86667 2000 FO10 from Deerlick Obs. (May 13.11-17p3)
86039 86039 1999 NC43 from PS1 (June 15.53-55p3)
85184 85184 1991 JG1 from PESCOPE (May 4.83p2, 4.88p1 & 5.89-91p2) and ATLAS Haleakala (June 15.36-38p4)
68348 68348 2001 LO7 from PS2 (June 15.33-36p4)
66391 66391 1999 KW4 from PESCOPE (May 31.69-75p3)
66008 66008 1998 QH2 from ATLAS Haleakala (June 15.59-61p4)
65909 65909 1998 FH12 from MASTER-II Sutherland (June 14.88-90p3)
65733 65733 1993 PC from ATLAS Mauna Loa (June 15.27-29p4)
54789 54789 2001 MZ7 from PS2 (June 15.58-61p4)
52768 52768 1998 OR2 from Sanglok Obs. (April 21.67-70p33, 22.65-67p18 & 23.64-68p92) and Sakai Obs. (April 27.50-51p4 & 28.47-49p4)
37655 37655 Illapa (1994 PM) from PS1 (June 15.41-44p4)
36183 36183 1999 TX16 from PESCOPE (May 27.92-97p3) and ATLAS Mauna Loa (June 15.32-34p4)
20826 20826 2000 UV13 from ATLAS Mauna Loa (June 15.58-61p4)
11284 11284 Belenus (1990 BA) from PS1 (June 15.36-39p3)
09950 9950 ESA (1990 VB) from PS2 (June 16.27-30p4)
08567 8567 1996 HW1 from SATINO-1 (2019 March 9.05-06p2)
08014 8014 1990 MF from Cherokee Ridge Obs. (June 15.14-18p3) and Northolt Branch Obs. (June 15.92-93p3)
07753 7753 1988 XB from WISE (June 12.37p1, 12.50p1, 12.63p1, 12.76p1, 12.83p2, 12.89p1, 13.09p1, 13.22p1 & 13.35p1)
05751 5751 Zao (1992 AC) from ATLAS Mauna Loa (June 15.51-53p4) and PS2 (June 15.52-56p4)
05653 5653 Camarillo (1992 WD5) from PS1 (June 15.54-56p3)
04954 4954 Eric (1990 SQ) from PESCOPE (May 14.87-91p3 & 20.69-70p2) and ATLAS Mauna Loa (June 15.31-33p4)
03691 3691 Bede (1982 FT) from ATLAS Mauna Loa (June 15.59-61p4)

MPEC 2020-M02 - "05:22 UT" - 2020 LY

K20L00Y 2020 LY (small asteroid, Q=4.074 AU, H=23.7 ~62m) was picked up at 0747 UT on 14 June by PS2, observing it at June 14.32-35p3. This detection was confirmed by LCO Sutherland A (June 14.98-99p4), LCO Sutherland C (June 15.95-96p4), and CSS-Kuiper (June 16.21p2).

MPEC 2020-M01 - "05:19 UT" - 2020 LX

K20L00X 2020 LX (small asteroid, H=24.8 ~37m) was picked up at 0627 UT on 14 June by PS2, observing it at June 14.27-29p3. This detection was confirmed by Mt. John Obs. (June 14.40-41p4), Great Shefford Obs. (June 14.95-96p2), ARO Westfield (June 15.11-12p3 & 16.16p3), and Sandlot Obs. (June 15.15-16p2 & 16.14-16p3).

Observers on 16 June '20

A total of 33 observers appear in today's MPECs.

Code	Observer / observatory
`H21`	Astronomical Research Obs. Westfield in Illinois, 2 in MPECs 2020-M01 & 2020-M06 -- 2020 LX, 2020 LD1
`T05`	ATLAS Haleakala in Hawaii, 8 in MPEC 2020-M03 -- 2015 FP332, 85184, 66008, 506459, 184990, 159929, 154278, 106589
`T08`	ATLAS Mauna Loa in Hawaii, 17 in MPEC 2020-M03 -- 2020 JX1, 2017 QM18, 2017 ME, 2016 AX147, 90147, 65733, 503960, 420302, 36183, 267136, 20826, 163348, 137911, 5751, 4954, 3691, 2102
`V06`	Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) in Arizona, 12 in MPECs 2020-M02, 2020-M03 & 2020-M04 -- 2020 LY, 2020 LO, 2020 LB1, 2020 KV5, 2020 KK5, 2020 JT, 2020 JP1, 2020 HT9, 2020 HH5, 2020 HB2, 2020 FA3, 2017 AV3
`V94`	Cherokee Ridge Obs., 3 in MPEC 2020-M03 -- 137199, 106589, 8014
`W31`	Deerlick Obs., 2 in MPEC 2020-M03 -- 86667, 184990
`734`	Farpoint Obs. in Kansas, 5 in MPECs 2020-M03, 2020-M04 & 2020-M06 -- 2020 LD1, 2020 LB1, 2020 HS8, 2010 JV153, 2010 EC135
`J95`	Great Shefford Obs. in England, 2 in MPECs 2020-M01 & 2020-M04 -- 2020 LX, 2020 LB1
`H062`	Robert Hutsebaut in Belgium via iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2020-M03 -- 2004 HC39
`Q622`	Marian Urbanik in Slovakia via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-M03 -- 2020 LD
`C401`	program code 1 via Kuban State Univ. Obs. in Russia, 2 in MPEC 2020-M03 -- 163348, 137199
`K91`	LCO Sutherland A in South Africa, 2 in MPECs 2020-M02 & 2020-M03 -- 2020 LY, 2020 JX1
`K92`	LCO Sutherland B in South Africa, 1 in MPEC 2020-M06 -- 2020 LD1
`K93`	LCO Sutherland C in South Africa, 2 in MPECs 2020-M02 & 2020-M03 -- 2020 LY, 2020 JU3
`K95`	MASTER-II Sutherland in South Africa, 2 in MPEC 2020-M03 -- 65909, 494706
`474`	Mt. John Obs. in New Zealand, 2 in MPECs 2020-M01 & 2020-M04 -- 2020 LX, 2020 LB1
`Z80`	Northolt Branch Obs. in England, 6 in MPEC 2020-M03 -- 2020 KP6, 2020 KC7, 2020 HH6, 2005 MR5, 467963, 8014
`557`	Ondrejov Obs. in the Czech Republic, 2 in MPEC 2020-M03 -- 175189, 137199
`F51`	Pan-STARRS 1 (PS1) in Hawaii, 28 in MPECs 2020-M03 & 2020-M06 -- 2020 LQ, 2020 LD1, 2020 KY2, 2020 KV1, 2020 KQ7, 2020 KC1, 2018 AX, 2017 XB62, 2015 VU142, 2014 QL390, 2010 EC135, 2006 FG36, 90147, 86039, 523707, 416224, 405212, 37655, 357024, 285339, 162723, 162566, 162157, 153591, 137911, 136839, 11284, 5653
`F52`	Pan-STARRS 2 (PS2) in Hawaii, 25 in MPECs 2020-M01, 2020-M02, 2020-M03 & 2020-M04 -- 2020 LY, 2020 LX, 2020 LS, 2020 LN, 2020 LB1, 2020 KQ5, 2020 KM3, 2020 KA5, 2020 JT2, 2020 HS10, 2020 HO10, 2017 QM18, 2017 MA4, 68348, 54789, 490684, 471956, 368949, 275976, 218863, 175729, 152964, 136874, 9950, 5751
`L68`	PESCOPE, 9 in MPEC 2020-M03 -- 99935, 85184, 66391, 495615, 433992, 382503, 36183, 144411, 4954
`654`	Pomona College Table Mtn. Obs. (PCTMO) in southern California, 2 in MPEC 2020-M03 -- 2020 LC, 2020 KR5
`U77`	Rani Obs., 1 in MPEC 2020-M03 -- 331471
`Q02`	Sakai Obs., 1 in MPEC 2020-M03 -- 52768
`H36`	Sandlot Obs. in Kansas, 2 in MPECs 2020-M01 & 2020-M03 -- 2020 LY, 2020 LX
`193`	Sanglok Obs. in Tajikistan, 1 in MPEC 2020-M03 -- 52768
`C95`	SATINO-1 in France, 1 in MPEC 2020-M03 -- 8567
`W88!`	W.F. Cashwell in Nevada via Slooh.com Chile Obs. in Chile, 1 in MPEC 2020-M03 -- 163348
`I93`	St. Pardon de Conques Obs. in France, 1 in MPEC 2020-M04 -- 2020 LB1
`L01`	Visnjan Obs. in Croatia, 1 in MPEC 2020-M04 -- 2020 LB1
`C51`	WISE in Earth polar orbit, 5 in MPECs 2020-M03 & 2020-M05 -- 2020 LC1, 2020 KE7, 2014 LQ26, 495615, 7753
`N88`	Xingming Obs. #3, 1 in MPEC 2020-M06 -- 2020 LD1
`I41`	Zwicky Transient Facility (ZTF) in southern California, 2 in MPEC 2020-M03 -- 2020 FW3, 2010 JV153

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

Impact Risk Monitoring on 16 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 LV	NEODyS	1710	2089-2118	16	1.31e-03	-3.51	-4.01	0	NEODyS: "Based on 18 optical observations (of which 0 are rejected as outliers) from 2020-06-14.384 to 2020-06-15.785."

2020 LO	JPL Sentry	1710	2072-2072	1	2.373e-07	-7.65	-7.65	0	JPL: Computed at 06:37 today Pacific time based on 38 observations spanning 3.9223 days (2020-Jun-12.32523 to 2020-Jun-16.24752). Diameter approximately 0.015 km. from weighted mean H=26.78.
2020 LO	NEODyS	1710	2065-2091	4	6.73e-09	-9.21	-9.46	0	NEODyS: "Based on 39 optical observations (of which 1 are rejected as outliers) from 2020-06-12.326 to 2020-06-16.248."

2020 LD	JPL Sentry	1710	2109-2109	1	9.132e-08	-5.63	-5.63	0	JPL: Computed at 06:44 today Pacific time based on 127 observations spanning 6.7595 days (2020-Jun-07.441338 to 2020-Jun-14.20088). Diameter approximately 0.110 km. from weighted mean H=22.39.
2020 LD	NEODyS	1710	2104-2109	2	2.25e-07	-5.25	-5.25	0	NEODyS: "Based on 127 optical observations (of which 0 are rejected as outliers) from 2020-06-07.442 to 2020-06-14.202."

2017 FA159	JPL Sentry	1710	2022-2116	180	8.725156e-07	-7.55	-8.25	0	JPL: Computed at 14:50 April 22nd of 2017 Pacific time based on 8 observations spanning .16326 days (2017-Mar-18.25951 to 2017-Mar-18.42277). Diameter approximately 0.006 km. from weighted mean H=28.59.

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 16 June '20

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

2340

Grabbed MPEC 2020-M05 - 2020 LC1 - see above
Grabbed MPEC 2020-M06 - 2020 LD1 - see above

1710

Noted that JPL Sentry has updated its 2017 FA159 risk assessment - see above
Noted that JPL Sentry has updated its 2020 LD risk assessment - see above
Noted that NEODyS has updated its 2020 LD risk assessment - see above
Noted that JPL Sentry has updated its 2020 LO risk assessment - see above
Noted that NEODyS has updated its 2020 LO risk assessment - see above
Noted that NEODyS has posted 2020 LV as an impact risk - see above
Grabbed MPEC 2020-M01 - 2020 LX - see above
Grabbed MPEC 2020-M02 - 2020 LY - see above
Grabbed MPEC 2020-M03 - Daily Orbit Update - see above
Grabbed MPEC 2020-M04 - 2020 LB1 - see above

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