2020-07-04 Tracking News

Contents on 4 July '20

IAU Minor Planet Center
- NEOCP Activity -- 20 listings
- New MPECs -- two MPECs
Observers -- 29 observers
Impact Risk Monitoring -- four objects
Chronology

Asteroid/Comet Connection (A/CC) Resources:

Consolidated Risk Tables - the CRT page
Of 1132 risk-listed objects, 85 have had news in the last 31 days. Updated at 2022 UTC on 4 July.
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 4 July '20

The MPC's NEO Confirmation Page has 20 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 20 objects listed. Of these, seven were "one nighters." So far The Tracking News has counted a total of 21 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 4 July '20

Minor Planet Electronic Circulars

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

MPEC 2020-N14 time-stamped "01:18 UT" - Comet C/2019 T2 (Lemmon) - see below
MPEC 2020-N15 time-stamped "15:01 UT" - Daily Orbit Update

<< DOU on 4 July '20 >> MPEC 2020-N15 - "15:01 UT" - Daily Orbit Update

Observations of risk-listed objects
K16R34D 2016 RD34 (small asteroid, arc=115 days, H=27.7 ~10m, close passer, NHATS target) from UH/Tholen NEO Follow-Up 2.24m Telescope (2016 Dec. 23.34p1 at G=24.21, 2016 Dec. 24.34p1 at G=24.56 & 2017 Jan. 4.28p1 at G=24.97)
Observations of close-passing objects
K19F00D 2019 FD (arc=2 opp, H=23.3 ~74m, NHATS target) from Astronomical Research Obs. Westfield (June 15.18-19p3 at V=22.0-22.2)
i1987 441987 2010 NY65 (radar support) from ATLAS Mauna Loa (July 3.38-42p4)
Observation campaigns (NHATS targets, radar support)
K20M03X 2020 MX3 (arc=4 days, H=23.4 ~71m, NHATS) from LCO Sutherland A (July 2.87-88p5)
K20J00U 2020 JU (arc=58 days, H=21.0 ~214m, NHATS) from the Zwicky Transient Facility (ZTF) (July 3.37p2 & 3.45p2)
04179 4179 Toutatis (1989 AC) (radar) from ATLAS Haleakala (July 3.36-37p4)
02102 2102 Tantalus (1975 YA) (radar) from Geyserland Obs. (July 3.49-50p2)
-- NHATS target table -- Planetary radar schedules: Arecibo & Goldstone
Observations of small (H>22.0) & smallish (21.7<H<=22.0) asteroids
K20M01S 2020 MS1 (arc=10 days, H=23.3 ~74m) from Castelmartini Obs. (June 26.00-01p3)
K20L02G 2020 LG2 (arc=18 days, H=22.1 ~129m) from Pan-STARRS 1 (PS1) (July 3.54-56p4)
K20L01D 2020 LD1 (arc=5 days, H=25.3 ~29m) from ARO Westfield (June 15.13-14p3)
K20L00Y 2020 LY (Q=4.057 AU, arc=3 days, H=23.6 ~65m) from ARO Westfield (June 15.11-13p3)
K20K02P 2020 KP2 (arc=27 days, H=25.1 ~32m) from ARO Westfield (June 15.27-28p3 at V=22.5-23.0)
K20K01X 2020 KX1 (arc=30 days, H=24.5 ~43m) from ARO Westfield (June 15.20-22p3 at V=22.5-8)
K20J01P 2020 JP1 (arc=35 days, H=22.1 ~129m) from ARO Westfield (June 15.16-17p3 at V=22.2-4)
K20J00T 2020 JT (arc=49 days, H=22.3 ~117m) from ARO Westfield (June 15.16-17p3 at V=22.1-3)
K20H09R 2020 HR9 (Q=4.201 AU, arc=85 days, H=24.2 ~49m) from ARO Westfield (June 15.23-24p3 at V=22.5-23.0)
K20F02O 2020 FO2 (arc=144 days, H=22.4 ~112m) from ARO Westfield (June 15.20-22p3 at V=22.2-5)
K11G44H 2011 GH44 (Q=4.220 AU, arc=48 days, H=22.0 ~135m) from PS1 (2011 March 11.43-45p2 & 2011 March 13.40-41p2)
Observations of other objects
K20L01Y 2020 LY1 (arc=6 days, H=21.4 ~178m) from ARO Westfield (June 15.34-35p3)
K20H02V 2020 HV2 (Q=4.893 AU, arc=58 days, H=19.1 ~513m) from ARO Westfield (June 15.15-16p3 at V=22.2-4)
K17Q18M 2017 QM18 (arc=5 opp, H=18.6 ~645m) from ATLAS Mauna Loa (July 3.33-35p4)
K16F14Y 2016 FY14 (arc=2 opp, H=19.1 ~513m) from PS1 (July 3.58-60p4)
K16AE7X 2016 AX147 (arc=4 opp, H=17.8 ~933m) from ATLAS Haleakala (July 3.27-29p4)
K15H10H 2015 HH10 (arc=6 opp, H=18.2 ~776m) from Castelmartini Obs. (June 26.05p3) and ATLAS Mauna Loa (July 3.55-59p4)
K15FX2P 2015 FP332 (i=36.5°, Q=4.790 AU, arc=5 opp, H=17.4 ~1.12 km) from Forti Obs. (July 2.88-89p2)
K14L21W 2014 LW21 (Q=5.412 AU, arc=3 opp, H=18.6 ~645m) from Castelmartini Obs. (June 26.01p3)
K11F29B 2011 FB29 (arc=124 days, H=20.3 ~295m) from PS1 (2011 Aug. 1.39-42p2)
K11F02Y 2011 FY2 (Q=4.098 AU, arc=5 opp, H=18.1 ~812m) from ATLAS Haleakala (July 3.57-61p5)
K11C06Y 2011 CY6 (arc=57 days, H=21.3 ~186m) from PS1 (2011 Feb. 4.40-43p3)
K10ED5C 2010 EC135 (arc=3 opp, H=20.3 ~295m) from Castelmartini Obs. (June 25.93p3)
K06U63D 2006 UD63 (arc=4 opp, H=19.0 ~537m) from Castelmartini Obs. (June 25.99p3)
K05M05R 2005 MR5 (arc=3 opp, H=20.3 ~295m) from Castelmartini Obs. (June 25.95-96p3)
n5615 495615 2015 PQ291 from ATLAS Mauna Loa (July 3.31-33p4)
l7885 477885 2011 JT9 from Castelmartini Obs. (June 25.94-95p3) and ATLAS Haleakala (July 4.41-43p4)
g8086 428086 2006 NM from ATLAS Mauna Loa (July 3.58-61p4)
g0302 420302 2011 XZ1 from ATLAS Haleakala (July 3.43-44p4)
Z7058 357058 2001 OG25 from ATLAS Mauna Loa (July 3.56-59p4)
Y9063 349063 2006 XA from ATLAS Haleakala (July 3.36-37p4)
X1471 331471 1984 QY1 from Castelmartini Obs. (June 25.94p3)
T2165 292165 2006 SC6 from PS1 (July 3.50-52p3)
O2643 242643 2005 NZ6 from ATLAS Haleakala (July 3.54-56p4)
J2563 192563 1998 WZ6 from Geyserland Obs. (July 3.53-54p2)
I4990 184990 2006 KE89 from ATLAS Mauna Loa (July 3.26p2)
H5189 175189 2005 EC224 from Geyserland Obs. (July 3.38-41p3)
G9675 169675 2002 JM97 from Geyserland Obs. (July 3.47-48p4)
F9856 159856 2004 JW6 from ATLAS Mauna Loa (July 3.59-62p4)
F9402 159402 1999 AP10 from ATLAS Haleakala (July 3.49-50p4)
F4278 154278 2002 TB9 from ATLAS Mauna Loa (July 3.33-36p4)
E5656 145656 4788 P-L from Castelmartini Obs. (June 26.09p3), WISE (June 30.84p1, 30.97p1, July 1.36p1 & 1.49p1), and ATLAS Mauna Loa (July 3.58-61p4)
E4861 144861 2004 LA12 from Pan-STARRS 2 (PS2) (July 4.26-29p3)
D7199 137199 1999 KX4 from Castelmartini Obs. (June 25.92p3)
D6874 136874 1998 FH74 from ATLAS Mauna Loa (July 3.31-33p3)
A6589 106589 2000 WN107 from ATLAS Mauna Loa (July 3.33-37p8)
A6538 106538 2000 WK63 from Castelmartini Obs. (June 26.08p2)
A3067 103067 1999 XA143 from ATLAS Haleakala (July 3.57-59p4)
90147 90147 2002 YK14 from ATLAS Haleakala (July 3.35-36p3)
85989 85989 1999 JD6 from Castelmartini Obs. (June 26.04p3), MASTER IAC Obs. (July 3.15-16p3), and ATLAS Mauna Loa (July 3.55-56p4)
85275 85275 1994 LY from Castelmartini Obs. (June 25.97p3), Dark Sky New Mexico Obs. (July 3.21-25p5), and ATLAS Mauna Loa (July 3.41-45p8)
85184 85184 1991 JG1 from PS2 (July 3.37-40p4)
66391 66391 1999 KW4 from ATLAS Mauna Loa (July 3.28-30p4)
66253 66253 1999 GT3 from PS1 (July 3.43-47p7)
65690 65690 1991 DG from PS1 (July 3.57-59p3)
54789 54789 2001 MZ7 from ATLAS Haleakala (July 3.43-44p4)
53435 53435 1999 VM40 from ATLAS Haleakala (July 3.58-61p4)
53430 53430 1999 TY16 from PS1 (July 3.48-52p3)
36183 36183 1999 TX16 from ATLAS Haleakala (July 3.31-33p4)
35107 35107 1991 VH from ATLAS Mauna Loa (July 3.28-30p4)
20826 20826 2000 UV13 from ATLAS Haleakala (July 3.51-53p4)
20460 20460 Robwhiteley (1999 LO28) from PS2 (July 3.52p2) and PS1 (July 3.54-56p4)
18882 18882 1999 YN4 from SATINO-1 (2019 Oct. 26.18p5)
11405 11405 1999 CV3 from ATLAS Mauna Loa (July 3.25-27p4)
09162 9162 Kwiila (1987 OA) from ATLAS Mauna Loa (July 3.53-57p8)
08014 8014 1990 MF from program code 1 via Kuban State Univ. Obs. (July 3.77-83p12)
07092 7092 Cadmus (1992 LC) from ATLAS Mauna Loa (July 3.25-27p4)
06569 6569 Ondaatje (1993 MO) from ATLAS Haleakala (July 3.38-39p4) and Kuban State Univ. Obs./code 1 (July 3.87-94p48)
06053 6053 1993 BW3 from ATLAS Haleakala (July 3.41-42p4)
04954 4954 Eric (1990 SQ) from ATLAS Haleakala (July 3.28-30p4)
04055 4055 Magellan (1985 DO2) from ZTF (June 30.38p1, 30.47p1, July 3.36p2 & 3.45p1) and ATLAS Mauna Loa (July 3.59-61p4)
03691 3691 Bede (1982 FT) from ATLAS Haleakala (July 3.52-54p4)
01685 1685 Toro (1948 OA) from ATLAS Mauna Loa (July 3.58-62p6)

MPEC 2020-N14 - "01:18 UT" - Comet C/2019 T2 (Lemmon)

CK19T020 C/2019 T2 (Lemmon) (i=111.5°, q=2.646 AU, Q=4092.357 AU, TP=2021 Apr. 22.31983 TT) was picked up at 0316 UT on 9 Oct. 2019 by the Mt. Lemmon Survey (MLS), observing it at 2019 Aug. 26.21-23p4, 2019 Sept. 19.26-28p4, 2019 Oct. 9.14-15p3, and 2019 Oct. 23.12-13p4. This detection was confirmed by PS1 (2019 Sept. 10.44-47p3 & 2019 Sept. 12.36-38p3), Steward Obs. Mt. Lemmon Station (2019 Oct. 9.23-25p4), program code 8 via Simeis Obs. (2019 Oct. 9.75-76p3), Calar Alto Schmidt (2019 Oct. 9.88-91p4), Hidetaka Sato via iTelescope Obs. Mayhill (2019 Oct. 20.09-10p3, May 26.43-44p2 & June 19.39p2), the SZTE Asteroid Program (2019 Oct. 23.85-87p3, 2019 Nov. 24.78-80p2 & 2019 Nov. 25.75-76p4), Marco Micheli on Mauna Kea (2019 Oct. 29.31p3, May 21.60p2 & June 17.55p2), SATINO-1 (2019 Oct. 29.77p3), Santa Maria de Montmagastrell Obs. (2019 Dec. 1.83-85p3), Buchloe Obs. (2019 Dec. 29.78-79p3 & June 24.05p3), ATLAS Mauna Loa (May 20.58-61p4, 28.57-60p4, June 1.59-61p4, 13.59-61p3, 17.57-61p4, 20.59-61p3, 25.56-60p4, 29.59-62p4, July 2.55-57p4 & 3.58-62p4), Shinshiro Obs. (May 24.76-77p3), program code 1 via Kitab Obs. (May 26.93-94p3), iTelescope Obs. Mayhill (May 28.40-41p3 & June 17.38-39p3), ATLAS Haleakala (May 29.58-61p4, June 7.57-59p4 & 30.54-56p4), PS2 (June 5.56-60p4), Hirao Obs. (June 19.72-73p2), and Telescope Live (June 28.32p2).

Observers on 4 July '20

A total of 29 observers appear in today's MPECs.

Code	Observer / observatory
`H21`	Astronomical Research Obs. Westfield in Illinois, 11 in MPEC 2020-N15 -- 2020 LY1, 2020 LY, 2020 LD1, 2020 KX1, 2020 KP2, 2020 JT, 2020 JP1, 2020 HV2, 2020 HR9, 2020 FO2, 2019 FD
`T05`	ATLAS Haleakala in Hawaii, 19 in MPECs 2020-N14 & 2020-N15 -- C/2019 T2, 2016 AX147, 2011 FY2, 90147, 54789, 53435, 477885, 420302, 36183, 349063, 242643, 20826, 159402, 103067, 6569, 6053, 4954, 4179, 3691
`T08`	ATLAS Mauna Loa in Hawaii, 22 in MPECs 2020-N14 & 2020-N15 -- C/2019 T2, 2017 QM18, 2015 HH10, 85989, 85275, 66391, 495615, 441987, 428086, 357058, 35107, 184990, 159856, 154278, 145656, 136874, 11405, 106589, 9162, 7092, 4055, 1685
`215`	Buchloe Obs. in Germany, 1 in MPEC 2020-N14 -- C/2019 T2
`Z84`	Calar Alto Schmidt in Spain, 1 in MPEC 2020-N14 -- C/2019 T2
`160`	Castelmartini Obs. in Italy, 13 in MPEC 2020-N15 -- 2020 MS1, 2015 HH10, 2014 LW21, 2010 EC135, 2006 UD63, 2005 MR5, 85989, 85275, 477885, 331471, 145656, 137199, 106538
`V16`	Dark Sky New Mexico Obs. in New Mexico, 1 in MPEC 2020-N15 -- 85275
`K83`	Forti Obs., 1 in MPEC 2020-N15 -- 2015 FP332
`E89`	Geyserland Obs. in New Zealand, 4 in MPEC 2020-N15 -- 192563, 175189, 169675, 2102
`P87`	Hirao Obs., 1 in MPEC 2020-N14 -- C/2019 T2
`H06`	iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2020-N14 -- C/2019 T2
`H06\|`	Hidetaka Sato in Japan via iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2020-N14 -- C/2019 T2
`1861`	program code 1 via Kitab Obs., 1 in MPEC 2020-N14 -- C/2019 T2
`C401`	program code 1 via Kuban State Univ. Obs. in Russia, 2 in MPEC 2020-N15 -- 8014, 6569
`K91`	LCO Sutherland A in South Africa, 1 in MPEC 2020-N15 -- 2020 MX3
`Z22`	MASTER IAC Obs. in the Canary Islands, 1 in MPEC 2020-N15 -- 85989
`568_`	Marco Micheli on Mauna Kea in Hawaii, 1 in MPEC 2020-N14 -- C/2019 T2
`G96`	Mt. Lemmon Survey in Arizona, 1 in MPEC 2020-N14 -- C/2019 T2
`F51`	Pan-STARRS 1 (PS1) in Hawaii, 11 in MPECs 2020-N14 & 2020-N15 -- 2020 LG2, C/2019 T2, 2016 FY14, 2011 GH44, 2011 FB29, 2011 CY6, 66253, 65690, 53430, 292165, 20460
`F52`	Pan-STARRS 2 (PS2) in Hawaii, 4 in MPECs 2020-N14 & 2020-N15 -- C/2019 T2, 85184, 20460, 144861
`B74`	Santa Maria de Montmagastrell Obs. in Spain, 1 in MPEC 2020-N14 -- C/2019 T2
`C95`	SATINO-1 in France, 2 in MPECs 2020-N14 & 2020-N15 -- C/2019 T2, 18882
`Q11`	Shinshiro Obs., 1 in MPEC 2020-N14 -- C/2019 T2
`0948`	program code 8 via Simeis Obs. in Ukraine, 1 in MPEC 2020-N14 -- C/2019 T2
`I52`	Steward Obs. Mt. Lemmon Station in Arizona, 1 in MPEC 2020-N14 -- C/2019 T2
`461`	SZTE Asteroid Program in Hungary, 1 in MPEC 2020-N14 -- C/2019 T2
`X02`	Telescope Live in Chile, 1 in MPEC 2020-N14 -- C/2019 T2
`T12`	UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-N15 -- 2016 RD34
`C51`	WISE in Earth polar orbit, 1 in MPEC 2020-N15 -- 145656
`I41`	Zwicky Transient Facility (ZTF) in southern California, 2 in MPEC 2020-N15 -- 2020 JU, 4055

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

Impact Risk Monitoring on 4 July '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 LO	NEODyS	1600	2061-2065	2	1.92e-09	-9.71	-9.85	0	NEODyS: "Based on 52 optical observations (of which 1 are rejected as outliers) from 2020-06-12.326 to 2020-06-27.422."

2016 RD34	NEODyS	2022	2051-2118	320	7.8e-04	-4.53	-4.82	0	NEODyS #2 for the day: "Based on 95 optical observations (of which 1 are rejected as outliers) from 2016-09-11.431 to 2017-01-04.281."
2016 RD34	JPL Sentry	1700	2051-2094	21	0.00067669964	-4.44	-4.77	0	JPL: Computed at 09:43 today Pacific time based on 92 observations spanning 114.85 days (2016-Sep-11.42997 to 2017-Jan-04.279834) including radar (1 Doppler).. Diameter approximately 0.011 km. from weighted mean H=27.41.

2014 ML67	JPL Sentry	1700	2023-2109	25	4.311426e-07	-5.01	-5.19	0	JPL: Computed at 12:00 Dec. 18th of 2019 Pacific time based on 6 observations spanning 1.0923 days (2014-Jun-29.32193 to 2014-Jun-30.414205). Diameter approximately 0.050 km. from weighted mean H=24.16.

2010 NN	JPL Sentry	1700	2049-2116	45	2.1295744e-05	-6.51	-6.95	0	JPL: Computed at 03:38 April 7th of 2017 Pacific time based on 11 observations spanning .86897 days (2010-Jul-06.44094 to 2010-Jul-07.30991). Diameter approximately 0.007 km. from weighted mean H=28.35.

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 4 July '20

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

2022	Noted that NEODyS has updated its 2016 RD34 risk assessment - see above
1700	Noted that JPL Sentry has updated its 2010 NN risk assessment - see above Noted that JPL Sentry has updated its 2014 ML67 risk assessment - see above Noted that JPL Sentry has updated its 2016 RD34 risk assessment - see above
1600	Noted that NEODyS has updated its 2016 RD34 risk assessment - see above Noted that NEODyS has updated its 2020 LO risk assessment - see above Grabbed MPEC 2020-N15 - Daily Orbit Update - see above
0217	Grabbed MPEC 2020-N14 - Comet C/2019 T2 (Lemmon) - see above

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