2020-10-05 Tracking News

Contents on 5 October '20

IAU Minor Planet Center
- NEOCP Activity -- 26 listings
- New MPECs -- one MPEC
Observers -- 21 observers
Impact Risk Monitoring -- two objects
Chronology

Asteroid/Comet Connection (A/CC) Resources:

Consolidated Risk Tables - the CRT page
Of 1180 risk-listed objects, 169 have had news in the last 31 days. Updated at 1741 UTC on 5 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 5 October '20

The MPC's NEO Confirmation Page has 26 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 26 objects listed. Of these, twelve were "one nighters." So far The Tracking News has counted a total of 29 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 5 October '20

Minor Planet Electronic Circulars

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

<< DOU on 5 October '20 >> MPEC 2020-T08 - "12:21 UT" - Daily Orbit Update

Observations of risk-listed objects
K20S05K 2020 SK5 (small asteroid, Q=4.407 AU, arc=10 days, H=23.0 ~85m) from program code "," (21) via Faulkes Telescope South (Oct. 4.54p4) and Steward Obs. Mt. Lemmon Station (Oct. 5.32-33p4)
K20S04U 2020 SU4 (small asteroid, arc=12 days, H=23.8 ~59m) from Steward Mt. Lemmon Sta. (Oct. 5.47p3)
Observations of recently (no longer) risk-listed objects
K20R07H 2020 RH7 (i=43.9°, arc=21 days, H=20.2 ~309m) from Steward Mt. Lemmon Sta. (Oct. 5.22p4)
K20R06M 2020 RM6 (small asteroid, Q=4.245 AU, arc=25 days, H=24.8 ~37m) from Steward Mt. Lemmon Sta. (Oct. 5.23p4)
K20R00B 2020 RB (i=59.2°, Q=5.522 AU, arc=32 days, H=19.1 ~513m) from Steward Mt. Lemmon Sta. (Oct. 5.11-12p3)
Observations of close-passing objects
K20S06R 2020 SR6 (arc=17 days, H=25.7 ~25m, NHATS target) from Steward Mt. Lemmon Sta. (Oct. 5.16p3)
K20S04S 2020 SS4 (Q=4.042 AU, arc=11 days, H=24.3 ~47m) from Steward Mt. Lemmon Sta. (Oct. 4.50-51p4)
K20S03X 2020 SX3 from Steward Mt. Lemmon Sta. (Oct. 5.14-15p4)
K20S03A 2020 SA3 (arc=15 days, H=25.5 ~27m, NHATS target) from Steward Mt. Lemmon Sta. (Oct. 5.21-22p4)
K20R02K 2020 RK2 (arc=24 days, H=24.2 ~49m) from Wickede Obs. (Oct. 3.80p6)
K20P00S 2020 PS (arc=38 days, H=24.5 ~43m) from SATINO-1 (Aug. 11.85-89p3)
K18U01Q 2018 UQ1 (arc=3 opp, H=21.9 ~141m) from Steward Mt. Lemmon Sta. (Oct. 5.38-39p2)
c8945 388945 2008 TZ3 from Bredenkamp Obs. (April 20.96-98p3, 21.95-97p3 & 22.95-98p3)
Observation campaigns (NHATS targets, radar support)
K20R02R 2020 RR2 (arc=25 days, H=25.4 ~28m, NHATS) from Sandlot Obs. (Oct. 5.23-25p3)
K20P03V 2020 PV3 (arc=52 days, H=25.0 ~34m, NHATS) from Steward Mt. Lemmon Sta. (Oct. 5.30-32p4)
K20P01X 2020 PX1 (arc=56 days, H=23.7 ~62m, NHATS) from Sandlot Obs. (Oct. 5.17-20p3)
-- NHATS target table
Observations of small (H>22.0) & smallish (21.7<H<=22.0) asteroids
K20S06T 2020 ST6 (arc=7 days, H=24.5 ~43m) from Steward Mt. Lemmon Sta. (Oct. 5.33p4)
K20S06S 2020 SS6 (arc=16 days, H=23.2 ~78m) from Steward Mt. Lemmon Sta. (Oct. 5.33p4)
K20S05O 2020 SO5 (arc=10 days, H=26.0 ~21m) from Steward Mt. Lemmon Sta. (Oct. 5.36p3)
K20S05M 2020 SM5 (arc=10 days, H=24.6 ~41m) from Steward Mt. Lemmon Sta. (Oct. 5.24p2)
K20S05L 2020 SL5 (arc=19 days, H=23.2 ~78m) from Steward Mt. Lemmon Sta. (Oct. 5.27-28p4)
K20S00D 2020 SD (arc=19 days, H=22.9 ~89m) from Steward Mt. Lemmon Sta. (Oct. 5.34-35p4)
K20R04P 2020 RP4 (arc=26 days, H=23.5 ~68m) from Steward Mt. Lemmon Sta. (Oct. 5.34p4)
K20R03P 2020 RP3 (arc=25 days, H=25.5 ~27m) from Steward Mt. Lemmon Sta. (Oct. 5.28p4)
K20Q06R 2020 QR6 (arc=39 days, H=22.5 ~107m) from Steward Mt. Lemmon Sta. (Oct. 5.28-29p2)
K20P07K 2020 PK7 (arc=77 days, H=23.3 ~74m) from Steward Mt. Lemmon Sta. (Oct. 5.18-20p4)
K20P03R 2020 PR3 (arc=50 days, H=23.0 ~85m) from Steward Mt. Lemmon Sta. (Oct. 5.29-31p3)
K14HC4R 2014 HR124 (arc=5 opp, H=22.8 ~93m) from Steward Mt. Lemmon Sta. (Oct. 5.22-23p3)
K20S02H 2020 SH2 (i=44.2°, arc=24 days, H=22.0 ~135m) from Steward Mt. Lemmon Sta. (Oct. 5.26p4)
K20S00Y 2020 SY (arc=25 days, H=21.8 ~148m) from Steward Mt. Lemmon Sta. (Oct. 5.26-27p4)
K20O07K 2020 OK7 (arc=67 days, H=21.8 ~148m) from Steward Mt. Lemmon Sta. (Oct. 5.32-35p4)
K20L02J 2020 LJ2 (arc=112 days, H=21.8 ~148m) from Steward Mt. Lemmon Sta. (Oct. 5.29-30p4)
Observations of other objects
K20S01G 2020 SG1 (arc=18 days, H=19.9 ~355m) from the Mt. Lemmon Survey (MLS) (Oct. 4.19-20p3) and Steward Mt. Lemmon Sta. (Oct. 5.11-12p4)
K20S00B 2020 SB (Q=0.988 AU, arc=19 days, H=20.3 ~295m) from Steward Mt. Lemmon Sta. (Oct. 5.16p4)
K20R08X 2020 RX8 (Q=0.990 AU, arc=20 days, H=19.7 ~389m) from Steward Mt. Lemmon Sta. (Oct. 5.13p2)
K20R00G 2020 RG (arc=38 days, H=20.9 ~224m) from MLS (Oct. 4.25-27p3)
K20Q06U 2020 QU6 (arc=38 days, H=18.2 ~776m) from ATLAS Haleakala (Oct. 4.36-38p4)
K20Q06P 2020 QP6 (arc=40 days, H=20.8 ~234m) from Steward Mt. Lemmon Sta. (Oct. 5.20p4)
K20Q06F 2020 QF6 (i=73.6°, Q=4.503 AU, arc=43 days, H=17.8 ~933m) from Steward Mt. Lemmon Sta. (Oct. 4.50-51p2)
K20P07F 2020 PF7 (Q=5.014 AU, arc=57 days, H=18.7 ~616m) from ATLAS Mauna Loa (Oct. 4.29-31p4) and Visnjan Obs. (Oct. 4.82p8)
K20P05C 2020 PC5 (Q=4.177 AU, arc=52 days, H=18.5 ~676m) from ATLAS Haleakala (Oct. 4.44-46p4), Pan-STARRS 2 (PS2) (Oct. 4.45-47p2), Pan-STARRS 1 (PS1) (Oct. 4.47-51p4), and Steward Mt. Lemmon Sta. (Oct. 5.41-46p4)
K20P04X 2020 PX4 (arc=53 days, H=21.3 ~186m) from Steward Mt. Lemmon Sta. (Oct. 5.36-38p4)
K20O08C 2020 OC8 (arc=111 days, H=20.7 ~245m) from ATLAS Haleakala (Oct. 4.36-38p4)
K20O07S 2020 OS7 (Q=4.461 AU, arc=80 days, H=20.2 ~309m) from Steward Mt. Lemmon Sta. (Oct. 5.16-17p3)
K20O06X 2020 OX6 (arc=67 days, H=21.3 ~186m) from Steward Mt. Lemmon Sta. (Oct. 5.34-35p3)
K20O03S 2020 OS3 (arc=130 days, H=21.3 ~186m) from Steward Mt. Lemmon Sta. (Oct. 5.24-25p4)
K20N01Q 2020 NQ1 (Q=4.093 AU, arc=86 days, H=20.4 ~282m) from Steward Mt. Lemmon Sta. (Oct. 5.18-19p3)
K20M03Z 2020 MZ3 (Q=4.359 AU, arc=127 days, H=20.0 ~339m) from Steward Mt. Lemmon Sta. (Oct. 4.46-49p3)
K20M00P 2020 MP (arc=112 days, H=20.6 ~257m) from Steward Mt. Lemmon Sta. (Oct. 5.21-22p4)
K20L03B 2020 LB3 (arc=2 opp, H=19.6 ~407m) from PS2 (Oct. 5.23-26p4)
K20H08S 2020 HS8 (arc=162 days, H=21.4 ~178m) from Steward Mt. Lemmon Sta. (Oct. 5.14-15p3)
K20H08P 2020 HP8 (arc=5 opp, H=20.2 ~309m) from PS2 (Oct. 4.29-30p3) and PS1 (Oct. 4.39-40p3)
K20F06R 2020 FR6 (arc=195 days, H=21.4 ~178m) from Steward Mt. Lemmon Sta. (Oct. 5.12p3)
K20B13H 2020 BH13 (Q=4.129 AU, arc=2 opp, H=19.9 ~355m) from Steward Mt. Lemmon Sta. (Oct. 5.23p3)
K18S03K 2018 SK3 (Q=4.428 AU, arc=180 days, H=18.9 ~562m) from UH/Tholen NEO Follow-Up 2.24m Telescope (2019 March 9.66p1)
K16R33P 2016 RP33 from Castelmartini Obs. (2016 Sept. 26.95p3)
K16L10Z 2016 LZ10 (arc=2 opp, H=20.0 ~339m) from Castelmartini Obs. (2016 Sept. 26.92-93p3)
K16L09S 2016 LS9 (arc=4 opp, H=19.0 ~537m) from Castelmartini Obs. (2016 Sept. 26.96p3)
K16E85D 2016 ED85 (Q=5.062 AU, arc=3 opp, H=17.7 ~977m) from ATLAS Mauna Loa (Oct. 4.52-53p3)
K13U14X 2013 UX14 (arc=4 opp, H=18.3 ~741m) from ATLAS Haleakala (Oct. 4.47-50p4)
K12D08P 2012 DP8 (arc=5 opp, H=19.8 ~371m) from Bigmuskie Obs. (Oct. 4.13-16p3)
K11G27O 2011 GO27 (arc=4 opp, H=18.9 ~562m) from ATLAS Mauna Loa (Oct. 4.53-54p4)
K11F02Y 2011 FY2 (Q=4.097 AU, arc=5 opp, H=17.9 ~891m) from PS1 (Oct. 5.26-28p3)
K09V25Y 2009 VY25 (arc=2 opp, H=19.5 ~426m) from Castelmartini Obs. (2016 Sept. 26.99-00p3)
K07T08G 2007 TG8 (Q=4.305 AU, arc=3 opp, H=18.6 ~645m) from MLS (Oct. 4.30-32p4) and ATLAS Mauna Loa (Oct. 4.50-51p4)
K06H00B 2006 HB (arc=4 opp, H=18.9 ~562m) from PS2 (Oct. 4.36-38p3)
K04R84F 2004 RF84 (arc=4 opp, H=18.3 ~741m) from MLS (Oct. 4.28-30p4)
q3824 523824 2016 RO1 from MLS (Oct. 4.35-36p4)
q3633 523633 2009 XR2 from MLS (Oct. 4.48-50p4)
o3960 503960 2004 QF1 from ATLAS Haleakala (Oct. 4.31-33p4)
l4179 474179 1999 VS6 from ATLAS Haleakala (Oct. 4.47-50p4)
l0510 470510 2008 CJ116 from Castelmartini Obs. (2016 Sept. 26.82-83p3)
g8086 428086 2006 NM from ATLAS Mauna Loa (Oct. 4.49-50p4)
g0302 420302 2011 XZ1 from Wickede Obs. (Oct. 3.83p6)
f4903 414903 2010 XT45 from the Zwicky Transient Facility (ZTF) (Oct. 3.40-46p3)
b8160 378160 2006 WX1 from MLS (Oct. 4.42-44p4) and PS1 (Oct. 4.58-62p4)
Y0666 340666 2006 RO36 from the Catalina Sky Survey (CSS) (Oct. 4.47-48p3)
U5090 305090 2007 VQ4 from ZTF (Oct. 3.45p1, 3.50p1 & 4.48-51p3)
S5990 285990 2001 SK9 from PS2 (Oct. 4.46-50p4)
P7838 257838 2000 JQ66 from Castelmartini Obs. (2016 Sept. 26.93-94p3)
G9675 169675 2002 JM97 from Geyserland Obs. (Oct. 4.51-53p3)
G3902 163902 2003 SW222 from ATLAS Mauna Loa (Oct. 4.47-48p5)
G2913 162913 2001 MT18 from PS1 (Oct. 4.43-45p3)
G2911 162911 2001 LL5 from MLS (Oct. 4.35-36p4)
G2679 162679 2000 TK1 from MLS (Oct. 4.44-46p4)
G2173 162173 Ryugu (1999 JU3) from Cancelada Obs. (Oct. 3.90-96p69) and CSS (Oct. 4.33-35p4)
G2117 162117 1998 SD15 from Castelmartini Obs. (2016 Sept. 26.82p3)
F9402 159402 1999 AP10 from CSS (Oct. 4.29-31p4), ATLAS Haleakala (Oct. 4.38-40p4), and program code 1 via Kuban State Univ. Obs. (Oct. 4.70-78p38)
E5656 145656 4788 P-L from ATLAS Haleakala (Oct. 4.46-50p4)
E4411 144411 2004 EW9 from ATLAS Mauna Loa (Oct. 4.48-49p4)
E0288 140288 2001 SN289 from PS2 (Oct. 4.46-49p3)
D6900 136900 1998 HL49 from ATLAS Haleakala (Oct. 4.23-25p3)
90147 90147 2002 YK14 from MLS (Oct. 4.12-14p4)
87684 87684 2000 SY2 from ATLAS Haleakala (Oct. 4.47-51p8)
69230 69230 Hermes (1937 UB) from ATLAS Haleakala (Oct. 4.46-50p4)
66008 66008 1998 QH2 from ATLAS Haleakala (Oct. 4.35-37p4)
65690 65690 1991 DG from PS1 (Oct. 4.42-45p3)
30825 30825 1990 TG1 from ATLAS Haleakala (Oct. 4.24-26p3)
21088 21088 Chelyabinsk (1992 BL2) from CSS (Oct. 4.47-48p3)
19764 19764 2000 NF5 from ATLAS Haleakala (Oct. 4.43-46p4) and PS1 (Oct. 4.47-51p8)
12538 12538 1998 OH from ZTF (Oct. 1.42p1)
08035 8035 1992 TB from PS1 (Oct. 4.48-51p3)
06455 6455 1992 HE from MLS (Oct. 4.48-50p4)
05143 5143 Heracles (1991 VL) from CSS (Oct. 4.33-35p3) and ATLAS Haleakala (Oct. 4.41-43p4)
04055 4055 Magellan (1985 DO2) from MASTER IAC Obs. (Oct. 4.12-16p4) and ATLAS Haleakala (Oct. 4.47-51p4)
03753 3753 Cruithne (1986 TO) from ATLAS Haleakala (Oct. 4.57-58p3)
03752 3752 Camillo (1985 PA) from ATLAS Haleakala (Oct. 4.25-27p4)
03691 3691 Bede (1982 FT) from ATLAS Haleakala (Oct. 4.36-38p4) and PS1 (Oct. 5.25-29p4)
03288 3288 Seleucus (1982 DV) from ATLAS Haleakala (Oct. 4.39-41p4) and PS2 (Oct. 5.23-25p3)
01036 1036 Ganymed (1924 TD) from ATLAS Haleakala (Oct. 4.57-59p4)
00887 887 Alinda (1918 DB) from ATLAS Haleakala (Oct. 4.43-45p4)

Observers on 5 October '20

A total of 21 observers appear in today's MPEC.

Code	Observer / observatory
`T05`	ATLAS Haleakala in Hawaii, 22 in MPEC 2020-T08 -- 2020 QU6, 2020 PC5, 2020 OC8, 2013 UX14, 87684, 69230, 66008, 503960, 474179, 30825, 19764, 159402, 145656, 136900, 5143, 4055, 3753, 3752, 3691, 3288, 1036, 887
`T08`	ATLAS Mauna Loa in Hawaii, 7 in MPEC 2020-T08 -- 2020 PF7, 2016 ED85, 2011 GO27, 2007 TG8, 428086, 163902, 144411
`B88`	Bigmuskie Obs. in Italy, 1 in MPEC 2020-T08 -- 2012 DP8
`L65`	Bredenkamp Obs., 1 in MPEC 2020-T08 -- 388945
`Z36`	Cancelada Obs., 1 in MPEC 2020-T08 -- 162173
`160`	Castelmartini Obs. in Italy, 7 in MPEC 2020-T08 -- 2016 RP33, 2016 LZ10, 2016 LS9, 2009 VY25, 470510, 257838, 162117
`703`	Catalina Sky Survey (CSS) in Arizona, 5 in MPEC 2020-T08 -- 340666, 21088, 162173, 159402, 5143
`E10,`	program code "," (21) via Faulkes Telescope South in New South Wales, 1 in MPEC 2020-T08 -- 2020 SK5
`E89`	Geyserland Obs. in New Zealand, 1 in MPEC 2020-T08 -- 169675
`C401`	program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-T08 -- 159402
`Z22`	MASTER IAC Obs. in the Canary Islands, 1 in MPEC 2020-T08 -- 4055
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 11 in MPEC 2020-T08 -- 2020 SG1, 2020 RG, 2007 TG8, 2004 RF84, 90147, 523824, 523633, 378160, 162911, 162679, 6455
`F51`	Pan-STARRS 1 (PS1) in Hawaii, 9 in MPEC 2020-T08 -- 2020 PC5, 2020 HP8, 2011 FY2, 65690, 378160, 19764, 162913, 8035, 3691
`F52`	Pan-STARRS 2 (PS2) in Hawaii, 7 in MPEC 2020-T08 -- 2020 PC5, 2020 LB3, 2020 HP8, 2006 HB, 285990, 140288, 3288
`H36`	Sandlot Obs. in Kansas, 2 in MPEC 2020-T08 -- 2020 RR2, 2020 PX1
`C95`	SATINO-1 in France, 1 in MPEC 2020-T08 -- 2020 PS
`I52`	Steward Obs. Mt. Lemmon Station in Arizona, 43 in MPEC 2020-T08 -- 2020 SY, 2020 SX3, 2020 SU4, 2020 ST6, 2020 SS6, 2020 SS4, 2020 SR6, 2020 SO5, 2020 SM5, 2020 SL5, 2020 SK5, 2020 SH2, 2020 SG1, 2020 SD, 2020 SB, 2020 SA3, 2020 RX8, 2020 RP4, 2020 RP3, 2020 RM6, 2020 RH7, 2020 RB, 2020 QR6, 2020 QP6, 2020 QF6, 2020 PX4, 2020 PV3, 2020 PR3, 2020 PK7, 2020 PC5, 2020 OX6, 2020 OS7, 2020 OS3, 2020 OK7, 2020 NQ1, 2020 MZ3, 2020 MP, 2020 LJ2, 2020 HS8, 2020 FR6, 2020 BH13, 2018 UQ1, 2014 HR124
`T12`	UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-T08 -- 2018 SK3
`L01`	Visnjan Obs. in Croatia, 1 in MPEC 2020-T08 -- 2020 PF7
`G33`	Wickede Obs. in Germany, 2 in MPEC 2020-T08 -- 2020 RK2, 420302
`I41`	Zwicky Transient Facility (ZTF) in southern California, 3 in MPEC 2020-T08 -- 414903, 305090, 12538

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

Impact Risk Monitoring on 5 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 SK5	NEODyS	1740	R E M O V E D						-

2020 SU4	NEODyS	1740	2112	1	9.59e-08	-6.79	-6.79	0	NEODyS: "Based on 33 optical observations (of which 0 are rejected as outliers) from 2020-09-23.507 to 2020-10-05.474."

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 5 October '20

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

1740	Noted that NEODyS has removed 2020 SK5 as an impact risk - see above Noted that NEODyS has updated its 2020 SU4 risk assessment - see above Grabbed MPEC 2020-T08 - Daily Orbit Update - see above

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