2020-12-01 Tracking News

Contents on 1 December '20

IAU Minor Planet Center
- NEOCP Activity -- 16 listings
- New MPECs -- two MPECs
Observers -- 26 observers
Impact Risk Monitoring -- four objects
Chronology

Asteroid/Comet Connection (A/CC) Resources:

Consolidated Risk Tables - the CRT page
Of 1225 risk-listed objects, 193 have had news in the last 31 days. Updated at 1903 UTC on 1 Dec.
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 1 December '20

The MPC's NEO Confirmation Page has 16 listings

When last checked at 2317 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had sixteen objects listed. Of these, eight 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 1 December '20

Minor Planet Electronic Circulars

As of last check at 2317 UTC, there have been two MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2020-X01 time-stamped "12:11 UT" - Daily Orbit Update - see below
MPEC 2020-X02 time-stamped "20:11 UT" - 2020 WR5

MPEC 2020-X02 - "20:11 UT" - 2020 WR5

K20W05R 2020 WR5 (H=20.6 ~257m) was picked up at 1322 UT on 26 Nov. by NEOWISE, observing it at Nov. 26.56p1, 26.69p1, 26.75p1, 26.82p1, 26.88p1, and 26.95p1. This detection was confirmed by Robert Holmes via Cerro Tololo Inter-American Obs. (CTIO) (Nov. 28.24-25p4, 30.28-32p3 & Dec. 1.26-27p4).

<< DOU on 1 December '20 >> MPEC 2020-X01 - "12:11 UT" - Daily Orbit Update

Observations of risk-listed objects
99942 99942 Apophis (2004 MN4) (NHATS target) from Simeis Obs. (Nov. 30.14-15p4) and Schiaparelli Obs. (Nov. 30.18-20p3)
Observations of close-passing objects
K20W04Q 2020 WQ4 (arc=1 day, H=26.5 ~17m) from Schiaparelli Obs. (Nov. 25.85-86p3)
K20W00C 2020 WC (arc=10 days, H=27.6 ~10m, NHATS target) from Schiaparelli Obs. (Nov. 20.95-97p3 & 24.18-19p3)
K20V06Z 2020 VZ6 (arc=17 days, H=25.0 ~34m) from Nastro Verde Obs. (Nov. 30.77p3), Visnjan Obs. (Nov. 30.83p5), Salvatore di Giacomo Obs. (Nov. 30.86p2), and HOB Obs. (Nov. 30.91-93p3)
K20V04W 2020 VW4 (arc=8 days, H=26.3 ~19m, NHATS target) from Schiaparelli Obs. (Nov. 19.05-06p3)
Observation campaigns (NHATS targets, radar support)
K20S00O 2020 SO (NHATS) from Schiaparelli Obs. (Nov. 25.82-83p3 & 29.80-82p9), Sormano Obs. (Nov. 29.78p12), and Great Shefford Obs. (Dec. 1.08-10p6)
G3693 163693 Atira (2003 CP20) (radar) from ATLAS Haleakala (Nov. 30.64-66p4)
-- NHATS target table -- Planetary radar schedules: Arecibo & Goldstone
Observations of small asteroids (H>22.0)
K20W00M 2020 WM (arc=10 days, H=25.0 ~34m) from Schiaparelli Obs. (Nov. 19.01-02p3 & 20.92-93p3)
K20V03C 2020 VC3 (q=0.255 AU, arc=30 days, H=23.2 ~78m) from Schiaparelli Obs. (Nov. 20.74-75p2)
K20U05Z 2020 UZ5 (arc=34 days, H=22.5 ~107m) from Schiaparelli Obs. (Nov. 20.85-86p3)
K20T10L 2020 TL10 (arc=46 days, H=22.6 ~102m) from Schiaparelli Obs. (Nov. 20.88-90p3)
Observations of other objects
K20W05M 2020 WM5 (Q=4.757 AU, arc=2 days, H=21.5 ~170m) from Schiaparelli Obs. (Nov. 30.10-13p3)
K20W01P 2020 WP1 (i=38.5°, arc=16 days, H=20.2 ~309m) from Schiaparelli Obs. (Nov. 24.20p3)
K20U03Z 2020 UZ3 (arc=80 days, H=20.4 ~282m) from Schiaparelli Obs. (Nov. 20.76-78p3)
K20A02V 2020 AV2 (IEO, Q=0.654 AU, arc=2 opp, H=16.4 ~1.78 km) from Schiaparelli Obs. (Nov. 26.20-21p3)
K17S19E 2017 SE19 (arc=3 opp, H=19.8 ~371m) from Herrenberg Obs. (Nov. 30.74-75p3)
K14J57H 2014 JH57 (Q=6.247 AU, arc=5 opp, H=16.2 ~1.95 km) from the Zwicky Transient Facility (ZTF) (Nov. 30.55-56p3)
K13U14X 2013 UX14 (arc=4 opp, H=18.3 ~741m) from Pin Oak Obs. (Dec. 1.18-24p3)
K09K08K 2009 KK8 (arc=3 opp, H=18.7 ~616m) from NEOWISE (Nov. 27.36p1, 27.49p1, 27.62p2, 27.75p1, 27.89p1, 28.02p1, 28.15p1 & 28.28p1)
K06L01D 2006 LD1 (arc=2 opp, H=20.9 ~224m) from Schiaparelli Obs. (Nov. 25.13-15p3)
K05Q10S 2005 QS10 (arc=4 opp, H=18.8 ~589m) from NEOWISE (Nov. 29.12p1, 29.25p1, 29.38p1, 29.51p1, 29.65p1, 29.78p1, 30.17p1, 30.30p1 & 30.43p1)
K04A00C 2004 AC (arc=4 opp, H=18.8 ~589m) from Schiaparelli Obs. (Nov. 29.93-94p3)
K02T67S 2002 TS67 (arc=6 opp, H=19.1 ~513m) from Pin Oak Obs. (Dec. 1.19-25p3)
K02G08Z 2002 GZ8 (Q=4.633 AU, arc=4 opp, H=18.6 ~645m) from Wickede Obs. (Nov. 29.85p6) and Pin Oak Obs. (Dec. 1.27-33p3)
m2505 482505 2012 TQ78 from Wickede Obs. (Nov. 29.82-83p6) and AstroColauri Obs. (Nov. 30.90-92p3)
l4554 474554 2003 YQ94 from Castelmartini Obs. (Nov. 30.76p3)
g8086 428086 2006 NM from Pin Oak Obs. (Dec. 1.06-14p3)
Y5705 345705 2006 VB14 from Castelmartini Obs. (Nov. 30.72p3)
V5098 315098 2007 EX from ZTF (Nov. 30.55-56p4)
P6412 256412 2007 BT2 from NEOWISE (Nov. 27.69p1, 27.82p1, 28.08p1, 28.15p1, 28.21p1, 28.28p1, 28.34p1, 28.41p1, 28.67p1 & 28.80p1)
O8590 248590 2006 CS from NEOWISE (Nov. 27.29p1, 27.35p1, 27.48p1 & 27.61p1)
I6822 186822 2004 FE31 from ATLAS Mauna Loa (Nov. 30.31-33p4)
I5716 185716 1998 SF35 from ATLAS Mauna Loa (Nov. 30.42-50p5)
G3902 163902 2003 SW222 from Pin Oak Obs. (Dec. 1.07-11p2 & 1.16p1)
G3364 163364 2002 OD20 from Herrenberg Obs. (Nov. 30.72-73p3)
G3014 163014 2001 UA5 from ATLAS Mauna Loa (Nov. 30.23-25p4)
G2173 162173 Ryugu (1999 JU3) from Wickede Obs. (Nov. 29.73-74p6)
F9402 159402 1999 AP10 from the Catalina Sky Survey (CSS) (Sept. 7.37-38p2), Blue Mountains Obs. (Oct. 11.48p2), roving observer (Oct. 17.79-85p7, 18.21-32p13, Nov. 4.84p2, 4.93-95p3, 5.75-00p28, 7.90-06p19, 8.15-24p9, 8.31-36p3, 8.71-80p12, 9.09-14p6, 11.73-84p15, 14.01-25p22, 15.16-38p22, 18.89-08p22, 21.80-99p23, 22.05-06p2 & 24.78-92p16), and MPC code P30 (Nov. 11.74-76p3 & 12.70-73p3)
F4302 154302 2002 UQ3 from ATLAS Mauna Loa (Nov. 30.29-30p4) and Pin Oak Obs. (Dec. 1.05-12p3)
F3201 153201 2000 WO107 from program code 1 via Kuban State Univ. Obs. (Nov. 30.84-85p7)
F2931 152931 2000 EA107 from ZTF (Nov. 30.56p1)
D8175 138175 2000 EE104 from Pan-STARRS 1 (PS1) (Nov. 30.51-55p3)
D8095 138095 2000 DK79 from ATLAS Mauna Loa (Nov. 30.20-22p4)
D7062 137062 1998 WM from ZTF (Nov. 30.55-57p4)
99935 99935 2002 AV4 from ATLAS Haleakala (Nov. 30.55-57p4)
90075 90075 2002 VU94 from Castelmartini Obs. (Nov. 30.75-76p3)
88188 88188 2000 XH44 from Pin Oak Obs. (Dec. 1.26-32p3)
87684 87684 2000 SY2 from NEOWISE (Nov. 27.36p1 & 27.49p1) and ATLAS Mauna Loa (Nov. 30.29-31p4)
85275 85275 1994 LY from ATLAS Mauna Loa (Nov. 30.41-44p4)
65717 65717 1993 BX3 from ATLAS Mauna Loa (Nov. 30.35-39p4) and Pin Oak Obs. (Dec. 1.17-23p3)
53435 53435 1999 VM40 from Wickede Obs. (Nov. 29.90p6)
31669 31669 1999 JT6 from ZTF (Nov. 30.56p2)
21088 21088 Chelyabinsk (1992 BL2) from ATLAS Haleakala (Nov. 30.53-55p4)
12538 12538 1998 OH from ATLAS Mauna Loa (Nov. 30.53-59p4) and Pin Oak Obs. (Dec. 1.28-34p3)
11405 11405 1999 CV3 from ATLAS Mauna Loa (Nov. 30.20-22p4)
08567 8567 1996 HW1 from ATLAS Haleakala (Nov. 30.51-54p4)
08037 8037 1993 HO1 from ATLAS Haleakala (Nov. 30.57-59p4)
07350 7350 1993 VA from ZTF (Nov. 30.56p1)
06053 6053 1993 BW3 from Wickede Obs. (Nov. 29.72-73p6)
05131 5131 1990 BG from ATLAS Haleakala (Nov. 30.57-59p4 & 30.65p1)
04947 4947 Ninkasi (1988 TJ1) from SATINO-1 (July 10.01p2)
04055 4055 Magellan (1985 DO2) from ATLAS Mauna Loa (Nov. 30.41-45p8)
02329 2329 Orthos (1976 WA) from ZTF (Nov. 30.55p1)
01036 1036 Ganymed (1924 TD) from ATLAS Mauna Loa (Nov. 30.52-54p4)
00887 887 Alinda (1918 DB) from ATLAS Mauna Loa (Nov. 30.25-27p4)
00433 433 Eros (1898 DQ) from MASTER IAC Obs. (Nov. 30.24p1 & 30.29p1)

Observers on 1 December '20

A total of 26 observers appear in today's MPECs.

Code	Observer / observatory
`L74`	AstroColauri Obs., 1 in MPEC 2020-X01 -- 482505
`T05`	ATLAS Haleakala in Hawaii, 6 in MPEC 2020-X01 -- 99935, 21088, 163693, 8567, 8037, 5131
`T08`	ATLAS Mauna Loa in Hawaii, 13 in MPEC 2020-X01 -- 87684, 85275, 65717, 186822, 185716, 163014, 154302, 138095, 12538, 11405, 4055, 1036, 887
`Q68`	Blue Mountains Obs. in New South Wales, 1 in MPEC 2020-X01 -- 159402
`160`	Castelmartini Obs. in Italy, 3 in MPEC 2020-X01 -- 90075, 474554, 345705
`703`	Catalina Sky Survey in Arizona, 1 in MPEC 2020-X01 -- 159402
`807\|`	Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2020-X02 -- 2020 WR5
`J95`	Great Shefford Obs. in England, 1 in MPEC 2020-X01 -- 2020 SO
`240`	Herrenberg Obs. in Germany, 2 in MPEC 2020-X01 -- 2017 SE19, 163364
`L63`	HOB Obs., 1 in MPEC 2020-X01 -- 2020 VZ6
`C401`	program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-X01 -- 153201
`Z22`	MASTER IAC Obs. in the Canary Islands, 1 in MPEC 2020-X01 -- 433
`P30`	MPC code P30, 1 in MPEC 2020-X01 -- 159402
`C82`	Nastro Verde Obs. in Italy, 1 in MPEC 2020-X01 -- 2020 VZ6
`C51`	NEOWISE in Earth polar orbit, 6 in MPECs 2020-X01 & 2020-X02 -- 2020 WR5, 2009 KK8, 2005 QS10, 87684, 256412, 248590
`F51`	Pan-STARRS 1 in Hawaii, 1 in MPEC 2020-X01 -- 138175
`V93`	Pin Oak Obs., 9 in MPEC 2020-X01 -- 2013 UX14, 2002 TS67, 2002 GZ8, 88188, 65717, 428086, 163902, 154302, 12538
`247`	roving observer, 1 in MPEC 2020-X01 -- 159402
`L07`	Salvatore di Giacomo Obs., 1 in MPEC 2020-X01 -- 2020 VZ6
`C95`	SATINO-1 in France, 1 in MPEC 2020-X01 -- 4947
`204`	Schiaparelli Obs. in Italy, 15 in MPEC 2020-X01 -- 2020 WQ4, 2020 WP1, 2020 WM5, 2020 WM, 2020 WC, 2020 VW4, 2020 VC3, 2020 UZ5, 2020 UZ3, 2020 TL10, 2020 SO, 2020 AV2, 2006 LD1, 2004 AC, 99942
`094`	Simeis Obs. in Ukraine, 1 in MPEC 2020-X01 -- 99942
`587`	Sormano Obs. in Italy, 1 in MPEC 2020-X01 -- 2020 SO
`L01`	Visnjan Obs. in Croatia, 1 in MPEC 2020-X01 -- 2020 VZ6
`G33`	Wickede Obs. in Germany, 5 in MPEC 2020-X01 -- 2002 GZ8, 53435, 482505, 162173, 6053
`I41`	Zwicky Transient Facility (ZTF) in southern California, 7 in MPEC 2020-X01 -- 2014 JH57, 31669, 315098, 152931, 137062, 7350, 2329

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

Impact Risk Monitoring on 1 December '20

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS at 2317 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 WN5	NEODyS	1701	2051-2120	298	7.05e-05	-5.83	-6.47	n/a	NEODyS: "Based on 8 optical observations (of which 0 are rejected as outliers) from 2020-11-17.336 to 2020-11-18.331."

2010 XB	JPL Sentry	1902	2027-2029	2	2.4874e-07	-7.78	-8.05	0	JPL: Computed at 19:10 April 7th of 2017 Pacific time based on 13 observations spanning .92164 days (2010-Dec-01.34575 to 2010-Dec-02.267391). Diameter approximately 0.004 km. from weighted mean H=29.59.

2008 VS4	JPL Sentry	1902	2021-2114	308	5.751628e-07	-5.41	-6.47	0	JPL: Computed at 00:23 April 8th of 2017 Pacific time based on 10 observations spanning .08330 days (2008-Nov-07.413 to 2008-Nov-07.4963). Diameter approximately 0.049 km. from weighted mean H=24.21.

2005 TM173	JPL Sentry	1902	2020-2116	147	9.400354e-07	-5.34	-6.23	0	JPL: Computed at 08:06 April 8th of 2017 Pacific time based on 6 observations spanning 1.9467 days (2005-Oct-09.20072 to 2005-Oct-11.14743). Diameter approximately 0.051 km. from weighted mean H=24.12.

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 1 December '20

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

2317	Grabbed MPEC 2020-X02 - 2020 WR5 - see above
1902	Noted that JPL Sentry has updated its 2005 TM173 risk assessment - see above Noted that JPL Sentry has updated its 2008 VS4 risk assessment - see above Noted that JPL Sentry has updated its 2010 XB risk assessment - see above
1701	Noted that NEODyS has posted 2020 WN5 as an impact risk - see above Grabbed MPEC 2020-X01 - Daily Orbit Update - see above

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