Contents  on 13 October '20

Asteroid/Comet Connection (A/CC) Resources:

The latest A/CC news is available via framed access, RSS news feed 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 13 October '20

Radar observation of one object

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


Data update noted at 0459 UTC when the database was dated 12 Oct.



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

NEOCP Activity  on 13 October '20

The MPC's NEO Confirmation Page has 65 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 65 objects listed. Of these, 23 were "one nighters." So far The Tracking News has counted a total of 77 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 13 October '20

Minor Planet Electronic Circulars

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


MPEC 2020-T119 - "23:40 UT" - 2020 PX3


MPEC 2020-T118 - "23:25 UT" - 2017 GO6


MPEC 2020-T117 - "15:03 UT" - 2020 FG15


<< DOU on 13 October '20 >>  MPEC 2020-T116 - "12:31 UT" - Daily Orbit Update


MPEC 2020-T115 - "10:47 UT" - 2005 UV64


MPEC 2020-T114 - "10:40 UT" - 2019 QU39


MPEC 2020-T113 - "10:39 UT" - 2019 QW39


MPEC 2020-T112 - "10:03 UT" - 2020 TS3


MPEC 2020-T111 - "10:01 UT" - 2020 TR3


MPEC 2020-T110 - "09:58 UT" - 2020 TQ3


MPEC 2020-T109 - "09:56 UT" - 2020 TP3


MPEC 2020-T108 - "01:49 UT" - 2020 TN3

Observers  on 13 October '20

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

CodeObserver / observatory
251Arecibo in Puerto Rico, 1 in radar -- 1981
H21Astronomical Research Obs. Westfield in Illinois, 15 in MPECs 2020-T109, 2020-T110, 2020-T111, 2020-T112 & 2020-T116 -- 2020 TS3, 2020 TR3, 2020 TQ3, 2020 TP3, 2020 SX6, 2020 SP1, 2020 SH2, 2020 SC5, 2020 RU3, 2020 PY3, 2020 PC7, 2020 MO5, 2014 QL390, 2011 UX192, 190119
T05ATLAS Haleakala in Hawaii, 7 in MPECs 2020-T108 & 2020-T116 -- 2020 TN3, 2020 RM6, 2020 PD1, 2020 PC5, 69230, 19764, 145656
T08ATLAS Mauna Loa in Hawaii, 5 in MPEC 2020-T116 -- 2020 TO2, 2020 SG1, 2005 JT108, 428086, 36284
C77Bernezzo Obs. in Italy, 1 in MPEC 2020-T108 -- 2020 TN3
Z841program code 1 via Calar Alto Schmidt in Spain, 4 in MPECs 2020-T110 & 2020-T116 -- 2020 TY1, 2020 TX2, 2020 TQ3, 2020 SO
Z842E. Schwab via Calar Alto Schmidt in Spain, 1 in MPEC 2020-T116 -- 2020 RZ9
703Catalina Sky Survey (CSS) in Arizona, 35 in MPECs 2020-T108, 2020-T109, 2020-T110, 2020-T111, 2020-T112, 2020-T116 & 2020-T119 -- 2020 TS3, 2020 TR3, 2020 TQ3, 2020 TP3, 2020 TN3, 2020 RV5, 2020 RM6, 2020 QU6, 2020 PX3, 2020 OC8, 2019 GQ3, 2016 TZ56, 2013 TS5, 2002 TS67, 88264, 87684, 69230, 68359, 480824, 474179, 443837, 380359, 357058, 347634, 316695, 27002, 256412, 23714, 162913, 145656, 8035, 4953, 4055, 3691, 887
V06Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) in Arizona, 3 in MPECs 2020-T115 & 2020-T116 -- 2020 SU4, 2005 UV64, 2001 SH276
G58Chabot Obs. in northern California, 3 in MPEC 2020-T116 -- 2020 RR3, 2020 PD1, 2012 US9
734Farpoint Obs. in Kansas, 4 in MPECs 2020-T110 & 2020-T116 -- 2020 TQ3, 2020 TN3, 2020 PF7, 2020 OA2
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2020-T108 -- 2020 TN3
203GiaGa Obs. in Italy, 1 in MPEC 2020-T108 -- 2020 TN3
Q70Glenlee Obs., 3 in MPEC 2020-T116 -- 2013 PY6, 2007 VX137, 3691
D00ISON Kislovodsk Obs. in Russia, 1 in MPEC 2020-T116 -- 159402
W92MASTER OAFA Obs., 1 in MPEC 2020-T116 -- 887
L52MASTER Tavrida, 1 in MPEC 2020-T116 -- 887
711McDonald Obs. in Texas, 1 in MPEC 2020-T112 -- 2020 TS3
V01Mountainville Obs. in Utah, 2 in MPEC 2020-T116 -- 2020 TY2, 2020 TW2
G96Mt. Lemmon Survey (MLS) in Arizona, 37 in MPECs 2020-T109, 2020-T110, 2020-T111, 2020-T112, 2020-T113, 2020-T114, 2020-T115, 2020-T116, 2020-T117, 2020-T118 & 2020-T119 -- 2020 TS3, 2020 TR3, 2020 TQ3, 2020 TP3, 2020 QH2, 2020 PX3, 2020 FG15, 2019 QW39, 2019 QU39, 2017 GO6, 2016 LY47, 2014 VU1, 2013 TR132, 2012 SH32, 2012 MQ3, 2009 ST19, 2009 RH2, 2008 TY9, 2008 CZ118, 2007 UY1, 2007 SR1, 2005 UV64, 2005 TF49, 2004 XP14, 505019, 41429, 276274, 253106, 21088, 190208, 162781, 162210, 162173, 154275, 143651, 140333, 2368
557Ondrejov Obs. in the Czech Republic, 2 in MPEC 2020-T116 -- 2000 TU28, 69230
F51Pan-STARRS 1 (PS1) in Hawaii, 16 in MPECs 2020-T113, 2020-T114, 2020-T116, 2020-T117 & 2020-T118 -- 2020 TX2, 2020 SV3, 2020 SS5, 2020 SL1, 2020 SC1, 2020 QH2, 2020 FG15, 2019 QW39, 2019 QU39, 2017 GO6, 2009 JK1, 414903, 414586, 285331, 27031, 8013
F52Pan-STARRS 2 (PS2) in Hawaii, 9 in MPECs 2020-T113, 2020-T114, 2020-T116, 2020-T117 & 2020-T118 -- 2020 TX2, 2020 QF5, 2020 FG15, 2019 QW39, 2019 QU39, 2017 GO6, 2013 VZ9, 55532, 136773
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 16 in MPEC 2020-T116 -- 2020 TJ2, 2020 TD2, 2020 ST1, 2020 SO, 2020 RZ9, 2020 RP4, 2020 QU6, 2020 QQ6, 2020 PD1, 2020 PC5, 2020 OC8, 2013 PY6, 2007 VX137, 2004 RF84, 2001 SG286, 2000 TU28
H36Sandlot Obs. in Kansas, 2 in MPECs 2020-T109 & 2020-T110 -- 2020 TQ3, 2020 TP3
C95SATINO-1 in France, 1 in MPEC 2020-T116 -- 2004 UB
204Schiaparelli Obs. in Italy, 3 in MPECs 2020-T108, 2020-T110 & 2020-T111 -- 2020 TR3, 2020 TQ3, 2020 TN3
Q21Southern Utsunomiya in Japan, 1 in MPEC 2020-T116 -- 162173
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2020-T114 -- 2019 QU39
291Spacewatch 1.8m telescope in Arizona, 3 in MPEC 2020-T116 -- 2019 RV3, 2018 EB, 2006 JE42
I52Steward Obs. Mt. Lemmon Station in Arizona, 18 in MPECs 2020-T108, 2020-T109, 2020-T110, 2020-T111, 2020-T112, 2020-T115 & 2020-T116 -- 2020 TX, 2020 TW, 2020 TS3, 2020 TR3, 2020 TQ3, 2020 TP3, 2020 TN3, 2020 TL2, 2020 TK2, 2020 TJ1, 2020 TE2, 2020 TD, 2020 TC1, 2020 TC, 2020 SY5, 2020 SV6, 2020 SO, 2005 UV64
L01Visnjan Obs. in Croatia, 5 in MPECs 2020-T108, 2020-T110, 2020-T111, 2020-T112 & 2020-T116 -- 2020 TS3, 2020 TR3, 2020 TQ3, 2020 TN3, 2020 TM3
L70Zvjezdarnica Graberje, 3 in MPEC 2020-T116 -- 2012 DP8, 2007 VX137, 382625
I41Zwicky Transient Facility (ZTF) in southern California, 13 in MPECs 2020-T108 & 2020-T116 -- 2020 TN3, 2020 QU6, 2020 PD1, 2020 OC8, 2005 JT108, 2004 QD17, 2001 SG286, 480824, 420302, 27002, 23714, 162173, 140158
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 13 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 TK3NEODyS17002056-2118333.97e-05-5.90-5.980NEODyS: "Based on 14 optical observations (of which 0 are rejected as outliers) from 2020-10-10.340 to 2020-10-12.230."
2020 TJ3NEODyS17002036-21181365.49e-06-5.22-6.010NEODyS: "Based on 20 optical observations (of which 0 are rejected as outliers) from 2020-10-11.172 to 2020-10-12.821."
2020 TX2JPL Sentry1700R E M O V E DJPL: Risk listing removed at 1448 UTC today
2020 TO2JPL Sentry17002119-211925.843e-06-6.26-6.460JPL: Computed at 07:33 today Pacific time based on 26 observations spanning 2.0194 days (2020-Oct-10.466226 to 2020-Oct-12.485663). Diameter approximately 0.017 km. from weighted mean H=26.55.
NEODyS1700211937.06e-06-6.18-6.390NEODyS: "Based on 26 optical observations (of which 1 are rejected as outliers) from 2020-10-10.467 to 2020-10-12.486."
2020 TY1JPL Sentry18002068-2118318.6105421e-06-4.15-4.710JPL #2 for the day: Computed at 10:02 today Pacific time based on 31 observations spanning 4.4936 days (2020-Oct-08.410259 to 2020-Oct-12.90386). Diameter approximately 0.100 km. from weighted mean H=22.62.
NEODyS17002068-2118396.55e-06-4.24-4.730NEODyS: "Based on 31 optical observations (of which 0 are rejected as outliers) from 2020-10-08.411 to 2020-10-12.905."
2020 TWJPL Sentry17002079-211762.97101e-06-7.05-7.480JPL: Computed at 07:40 today Pacific time based on 53 observations spanning 6.1989 days (2020-Oct-07.274719 to 2020-Oct-13.473581). Diameter approximately 0.011 km. from weighted mean H=27.35.
NEODyS17002076-211286.04e-07-7.71-8.040NEODyS: "Based on 53 optical observations (of which 1 are rejected as outliers) from 2020-10-07.276 to 2020-10-13.474."
2020 SX6JPL Sentry17002080-211783.91572e-07-7.77-8.320JPL: Computed at 07:36 today Pacific time based on 35 observations spanning 15.906 days (2020-Sep-26.39256 to 2020-Oct-12.298347). Diameter approximately 0.013 km. from weighted mean H=27.07.
NEODyS17002080-2117192.09e-07-8.08-8.730NEODyS: "Based on 35 optical observations (of which 0 are rejected as outliers) from 2020-09-26.393 to 2020-10-12.299."
2020 SU4NEODyS1700R E M O V E D-
2020 SOJPL Sentry1700R E M O V E DJPL: Risk listing removed at 1442 UTC today
2017 UA45JPL Sentry17002099-211251.98453e-06-6.60-6.720JPL: Computed at 10:06 Dec. 18th of 2017 Pacific time based on 39 observations spanning 44.580 days (2017-Oct-27.47452 to 2017-Dec-11.054117). Diameter approximately 0.022 km. from weighted mean H=25.95.
2015 TG24JPL Sentry17002102-2116301.5775824e-05-5.92-6.820JPL: Computed at 15:13 April 6th of 2017 Pacific time based on 44 observations spanning 5.0052 days (2015-Oct-09.35353 to 2015-Oct-14.35876). Diameter approximately 0.016 km. from weighted mean H=26.68.
2010 FNJPL Sentry17002079-2116103.875288e-06-6.51-6.970JPL: Computed at 14:29 April 9th of 2017 Pacific time based on 31 observations spanning 3.8945 days (2010-Mar-17.24321 to 2010-Mar-21.13776). Diameter approximately 0.016 km. from weighted mean H=26.64.
2007 TX22JPL Sentry17002040-2088573.36332348e-05-6.16-6.910JPL: Computed at 19:35 April 7th of 2017 Pacific time based on 22 observations spanning .13425 days (2007-Oct-11.20094 to 2007-Oct-11.33519). Diameter approximately 0.007 km. from weighted mean H=28.38.
2003 UM3JPL Sentry17002022-2115374.53238e-07-7.72-8.570JPL: Computed at 15:29 April 7th of 2017 Pacific time based on 12 observations spanning 1.0106 days (2003-Oct-17.30722 to 2003-Oct-18.3178). Diameter approximately 0.008 km. from weighted mean H=28.03.

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 13 October '20

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

2358Grabbed MPEC 2020-T119 - 2020 PX3 - see above
2332Grabbed MPEC 2020-T118 - 2017 GO6 - see above
1800Noted that JPL Sentry has updated its 2020 TY1 risk assessment - see above
1700Noted that JPL Sentry has updated its 2003 UM3 risk assessment - see above
Noted that JPL Sentry has updated its 2007 TX22 risk assessment - see above
Noted that JPL Sentry has updated its 2010 FN risk assessment - see above
Noted that JPL Sentry has updated its 2015 TG24 risk assessment - see above
Noted that JPL Sentry has updated its 2017 UA45 risk assessment - see above
Noted that JPL Sentry has removed 2020 SO as an impact risk - see above
Noted that NEODyS has removed 2020 SU4 as an impact risk - see above
Noted that JPL Sentry has updated its 2020 SX6 risk assessment - see above
Noted that NEODyS has updated its 2020 SX6 risk assessment - see above
Noted that NEODyS has posted 2020 TJ3 as an impact risk - see above
Noted that NEODyS has posted 2020 TK3 as an impact risk - see above
Noted that JPL Sentry has updated its 2020 TO2 risk assessment - see above
Noted that NEODyS has posted 2020 TO2 as an impact risk - see above
Noted that JPL Sentry has updated its 2020 TW risk assessment - see above
Noted that NEODyS has updated its 2020 TW risk assessment - see above
Noted that JPL Sentry has removed 2020 TX2 as an impact risk - see above
Noted that JPL Sentry has updated its 2020 TY1 risk assessment - see above
Noted that NEODyS has updated its 2020 TY1 risk assessment - see above
Grabbed MPEC 2020-T109 - 2020 TP3 - see above
Grabbed MPEC 2020-T110 - 2020 TQ3 - see above
Grabbed MPEC 2020-T111 - 2020 TR3 - see above
Grabbed MPEC 2020-T112 - 2020 TS3 - see above
Grabbed MPEC 2020-T113 - 2019 QW39 - see above
Grabbed MPEC 2020-T114 - 2019 QU39 - see above
Grabbed MPEC 2020-T115 - 2005 UV64 - see above
Grabbed MPEC 2020-T116 - Daily Orbit Update - see above
Grabbed MPEC 2020-T117 - 2020 FG15 - see above
0459Grabbed MPEC 2020-T108 - 2020 TN3 - see above
Noted Radar Astrometry database update - see above