Contents  on 20 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.

NEOCP Activity  on 20 October '20

The MPC's NEO Confirmation Page has 87 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 87 objects listed. Of these, 44 were "one nighters." So far The Tracking News has counted a total of 110 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 20 October '20

Minor Planet Electronic Circulars

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


MPEC 2020-U142 - "19:02 UT" - 2020 UM2


MPEC 2020-U141 - "19:00 UT" - 2020 UL2


MPEC 2020-U140 - "18:58 UT" - 2020 UK2


MPEC 2020-U139 - "18:56 UT" - 2020 UJ2


MPEC 2020-U138 - "17:54 UT" - 2006 HY5


MPEC 2020-U137 - "16:37 UT" - 2020 TR8


MPEC 2020-U136 - "16:33 UT" - 2015 UW67


MPEC 2020-U135 - "16:31 UT" - 2020 UH2


MPEC 2020-U134 - "16:19 UT" - 2020 UG2


MPEC 2020-U133 - "16:05 UT" - 2000 CN33


<< DOU on 20 October '20 >>  MPEC 2020-U132 - "12:46 UT" - Daily Orbit Update


MPEC 2020-U131 - "02:29 UT" - 2020 UF2


MPEC 2020-U130 - "02:28 UT" - 2020 UE2


MPEC 2020-U129 - "01:21 UT" - 2020 UD2

Observers  on 20 October '20

A total of 38 observers appear in today's MPECs.

CodeObserver / observatory
U71AHS Obs., 1 in MPEC 2020-U132 -- 154302
T05ATLAS Haleakala in Hawaii, 7 in MPEC 2020-U132 -- 2020 UV, 2020 UA, 2004 LU3, 87684, 4953, 4055, 887
T08ATLAS Mauna Loa in Hawaii, 41 in MPECs 2020-U129 & 2020-U132 -- 2020 UE, 2020 UD2, 2020 TW3, 2020 SR7, 2020 RM6, 2020 QQ6, 2020 QP3, 2020 OG4, 2013 UX14, 2007 VX137, 2007 UY1, 2004 UB, 2001 SG286, 2000 PQ27, 85804, 53435, 420302, 31669, 303262, 27031, 253106, 21088, 194126, 190208, 185716, 16834, 162173, 154302, 140333, 10115, 8037, 8014, 6239, 5836, 4688, 4450, 3200, 2368, 2212, 1580, 433
G17BAS Obs., 2 in MPEC 2020-U132 -- 90075, 887
160Castelmartini Obs. in Italy, 7 in MPEC 2020-U132 -- 2020 TM6, 2020 RV5, 2020 PD1, 2013 PY6, 2007 VX137, 96744, 140333
703Catalina Sky Survey (CSS) in Arizona, 26 in MPECs 2020-U129, 2020-U132 & 2020-U140 -- 2020 UK2, 2020 UE, 2020 UD2, 2020 UA, 2020 SR7, 2020 RP4, 2016 ED85, 2011 GO27, 2007 TG8, 2005 JT108, 2001 SG286, 99935, 523824, 523633, 488693, 376848, 305090, 253106, 21088, 190208, 16834, 163902, 162173, 154302, 144411, 140333
V06Catalina Sky Survey Kuiper Telescope in Arizona, 1 in MPEC 2020-U132 -- 2020 UV1
K87Dettelbach Vineyard Obs. in Germany, 3 in MPEC 2020-U132 -- 2020 QU6, 2020 PF7, 2004 RF84
K83Forti Obs., 2 in MPEC 2020-U132 -- 420302, 15817
W46Foxfire Village Obs., 3 in MPEC 2020-U132 -- 2020 UA1, 96744, 4947
L34Galhassin Robotic Telescope, 2 in MPEC 2020-U132 -- 2020 UE, 2020 UA
A17Guidestar Obs. in Germany, 10 in MPEC 2020-U132 -- 2020 UQ1, 2020 UE, 2020 TK5, 2020 SR7, 2020 RM6, 2020 QM4, 2020 OG4, 2018 GX4, 2016 ED85, 2011 GO27
H06iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2020-U132 -- 2020 UA
U68JPL SynTrack Robotic Telescope, 1 in MPEC 2020-U132 -- 2020 UY
C401program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-U132 -- 159402
W92MASTER OAFA Obs., 1 in MPEC 2020-U132 -- 2020 PC5
568^R. Wainscoat on Mauna Kea in Hawaii, 4 in MPECs 2020-U134, 2020-U135, 2020-U137 & 2020-U142 -- 2020 UM2, 2020 UH2, 2020 UG2, 2020 TR8
B67Mirasteilas Obs. in Switzerland, 1 in MPEC 2020-U132 -- 2020 UE
474Mt. John Obs. in New Zealand, 2 in MPECs 2020-U130 & 2020-U134 -- 2020 UG2, 2020 UE2
G96Mt. Lemmon Survey (MLS) in Arizona, 35 in MPECs 2020-U130, 2020-U131, 2020-U132, 2020-U133, 2020-U136, 2020-U139 & 2020-U141 -- 2020 UL2, 2020 UJ2, 2020 UF2, 2020 UE2, 2020 TX2, 2020 SS2, 2020 RG, 2020 RE, 2020 OC8, 2016 UA, 2015 UW67, 2011 GO27, 2006 HB, 2003 OA3, 2000 CN33, 99799, 98943, 87311, 69230, 66008, 65803, 523824, 455192, 407338, 380359, 354952, 33342, 162911, 162004, 142348, 138175, 3691, 3200, 1943, 1863
F51Pan-STARRS 1 (PS1) in Hawaii, 29 in MPECs 2020-U129, 2020-U130, 2020-U132, 2020-U133, 2020-U134, 2020-U135, 2020-U136, 2020-U137, 2020-U138, 2020-U139 & 2020-U142 -- 2020 UM2, 2020 UJ2, 2020 UH2, 2020 UG2, 2020 UE2, 2020 UD2, 2020 UD, 2020 UB2, 2020 UA, 2020 TS4, 2020 TR8, 2020 TD2, 2020 RO9, 2020 QE4, 2020 DB5, 2017 SV20, 2016 VG3, 2015 UW67, 2006 HY5, 2000 CN33, 88264, 482718, 481394, 378124, 22753, 163373, 162825, 145656, 2201
F52Pan-STARRS 2 (PS2) in Hawaii, 15 in MPECs 2020-U132, 2020-U133 & 2020-U138 -- 2020 PD1, 2017 SE19, 2016 UA, 2016 TL18, 2015 BF4, 2009 JK1, 2006 HY5, 2000 CN33, 68372, 414586, 404108, 304293, 143624, 8013, 3671
W16Pleasant Groves Obs., 1 in MPEC 2020-U136 -- 2015 UW67
D29Purple Mtn. Obs. Xuyi Station in China, 12 in MPEC 2020-U132 -- 2020 UE, 2020 SB, 2020 RX3, 2020 HP8, 65803, 418416, 414903, 138175, 6239, 5131, 4450, 3200
K61Rokycany Obs. in the Czech Republic, 4 in MPEC 2020-U132 -- 2020 UA1, 2020 UA, 2020 TW3, 2020 TK5
C95SATINO-1 in France, 1 in MPEC 2020-U132 -- 2001 SG286
Q11Shinshiro Obs., 1 in MPEC 2020-U132 -- 162173
W885M. Kumrucu-Lohmiller in Massachusetts via Slooh.com Chile Obs. in Chile, 1 in MPEC 2020-U132 -- 2020 UA
Q21Southern Utsunomiya in Japan, 1 in MPEC 2020-U132 -- 162173
291Spacewatch 1.8m telescope in Arizona, 2 in MPEC 2020-U132 -- 2018 XA, 2017 BP5
I52Steward Obs. Mt. Lemmon Station in Arizona, 41 in MPECs 2020-U131, 2020-U132, 2020-U133, 2020-U134, 2020-U139, 2020-U140 & 2020-U142 -- 2020 UW, 2020 UV, 2020 US, 2020 UR1, 2020 UP1, 2020 UM2, 2020 UK2, 2020 UJ2, 2020 UJ, 2020 UH, 2020 UG2, 2020 UG, 2020 UF2, 2020 UE1, 2020 UE, 2020 UD2, 2020 UD1, 2020 UC1, 2020 UA1, 2020 TZ6, 2020 TZ2, 2020 TY4, 2020 TX1, 2020 TW6, 2020 TT5, 2020 TS4, 2020 TN6, 2020 TM7, 2020 TM3, 2020 TK6, 2020 TK5, 2020 TK4, 2020 TJ3, 2020 TH7, 2020 TH5, 2020 TF, 2020 TD6, 2020 TA7, 2020 OX6, 2020 OK7, 2000 CN33
673!Jana Pittichova Chesley via Table Mtn. Obs. in southern California, 1 in MPEC 2020-U142 -- 2020 UM2
858Tebbutt Obs. in New Mexico, 1 in MPEC 2020-U132 -- 2020 UR1
W33Transit Dreams Obs., 10 in MPEC 2020-U132 -- 2020 UA, 2020 TT5, 2020 PC5, 65717, 27031, 16834, 10115, 9058, 4486, 2212
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-U132 -- 2016 KA1
L01Visnjan Obs. in Croatia, 6 in MPECs 2020-U129, 2020-U130, 2020-U131, 2020-U132, 2020-U139 & 2020-U142 -- 2020 UM2, 2020 UJ2, 2020 UF2, 2020 UE2, 2020 UD2, 2007 TE66
C51WISE in Earth polar orbit, 3 in MPEC 2020-U132 -- 2011 SO32, 2011 GO27, 1036
I41Zwicky Transient Facility (ZTF) in southern California, 34 in MPEC 2020-U132 -- 2020 TR2, 2020 TC1, 2020 PD1, 2019 AQ3, 2016 TF93, 2013 UX14, 2006 SS19, 89355, 85804, 85709, 67367, 65690, 415029, 414903, 413192, 382625, 380359, 354663, 322763, 316695, 283729, 27002, 256412, 24761, 21088, 209924, 185716, 162463, 8567, 7350, 4055, 1685, 1036, 433
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 20 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 UK2JPL Sentry22312036-2119232.0041547e-05-5.87-6.520JPL: Computed at 13:01 today Pacific time based on 13 observations spanning 2.2987 days (2020-Oct-18.18281 to 2020-Oct-20.481489). Diameter approximately 0.013 km. from weighted mean H=26.99.
NEODyS22312068-2116241.9e-05-5.96-6.350NEODyS: "Based on 13 optical observations (of which 0 are rejected as outliers) from 2020-10-18.184 to 2020-10-20.482."
2020 UYNEODyS22312068-212094.56e-07-8.57-9.15n/aNEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2020-10-17.284 to 2020-10-19.315."
JPL Sentry17002068-2119122.25586e-06-7.84-8.500JPL: Computed at 08:09 today Pacific time based on 21 observations spanning 2.0303 days (2020-Oct-17.283456 to 2020-Oct-19.313708). Diameter approximately 0.005 km. from weighted mean H=28.95.
2020 UXJPL Sentry17002046-2114350.000199381035-6.63-6.840JPL: Computed at 01:07 Oct. 18th Pacific time based on 11 observations spanning .97008 days (2020-Oct-17.276838 to 2020-Oct-18.246915). Diameter approximately 0.002 km. from weighted mean H=31.10.
2020 UJNEODyS2231204311.27e-07-6.06-6.060NEODyS: "Based on 17 optical observations (of which 0 are rejected as outliers) from 2020-10-10.324 to 2020-10-20.160."
JPL Sentry17002043-204311.020e-06-5.16-5.160JPL: Computed at 08:01 today Pacific time based on 17 observations spanning 9.8357 days (2020-Oct-10.323552 to 2020-Oct-20.15925). Diameter approximately 0.051 km. from weighted mean H=24.11.
2020 UHJPL Sentry17002106-211924.1455e-07-6.40-6.510JPL: Computed at 08:19 today Pacific time based on 43 observations spanning 4.8444 days (2020-Oct-15.308398 to 2020-Oct-20.1528). Diameter approximately 0.045 km. from weighted mean H=24.40.
2020 UENEODyS22312042-2120462.61e-05-4.82-5.37n/aNEODyS: "Based on 102 optical observations (of which 0 are rejected as outliers) from 2020-10-15.470 to 2020-10-20.265."
JPL Sentry17002061-2118252.943286e-05-4.74-5.090JPL: Computed at 08:26 today Pacific time based on 102 observations spanning 4.7945 days (2020-Oct-15.46967 to 2020-Oct-20.26422). Diameter approximately 0.026 km. from weighted mean H=25.56.
2020 UANEODyS22312065-2091103.93e-07-8.26-8.660NEODyS: "Based on 52 optical observations (of which 0 are rejected as outliers) from 2020-10-16.316 to 2020-10-20.410."
JPL Sentry17002065-210567.11597e-07-7.98-8.440JPL: Computed at 08:22 today Pacific time based on 52 observations spanning 4.0932 days (2020-Oct-16.31568 to 2020-Oct-20.40884). Diameter approximately 0.007 km. from weighted mean H=28.36.
2020 TK5NEODyS22312039-2061197.27e-06-4.20-4.310NEODyS: "Based on 57 optical observations (of which 0 are rejected as outliers) from 2020-10-14.332 to 2020-10-20.232."
JPL Sentry17002039-205672.16217556e-05-3.47-3.520JPL: Computed at 08:41 today Pacific time based on 57 observations spanning 5.8996 days (2020-Oct-14.331481 to 2020-Oct-20.231073). Diameter approximately 0.069 km. from weighted mean H=23.45.
2020 TY4NEODyS22312086-211192.23e-06-5.44-5.810NEODyS: "Based on 51 optical observations (of which 0 are rejected as outliers) from 2020-10-13.139 to 2020-10-20.174."
JPL Sentry17002099-211142.55898e-05-4.40-4.410JPL: Computed at 08:23 today Pacific time based on 51 observations spanning 7.0353 days (2020-Oct-13.13828 to 2020-Oct-20.173592). Diameter approximately 0.055 km. from weighted mean H=23.95.
2020 TS4JPL Sentry17002103-210315.583e-09-10.07-10.070JPL: Computed at 08:46 today Pacific time based on 78 observations spanning 6.0910 days (2020-Oct-14.208103 to 2020-Oct-20.29914). Diameter approximately 0.009 km. from weighted mean H=27.87.
2020 TJ3NEODyS22312056-2120577.15e-05-4.18-4.77n/aNEODyS: "Based on 46 optical observations (of which 1 are rejected as outliers) from 2020-10-11.172 to 2020-10-20.146."
JPL Sentry17002056-2120285.93727867e-05-4.23-4.860JPL: Computed at 08:15 today Pacific time based on 46 observations spanning 8.9744 days (2020-Oct-11.171145 to 2020-Oct-20.145553). Diameter approximately 0.041 km. from weighted mean H=24.59.
2017 UL52JPL Sentry17002030-21172251.0971039e-06-7.64-8.810JPL: Computed at 13:45 Dec. 15th of 2017 Pacific time based on 5 observations spanning .16943 days (2017-Oct-21.30556 to 2017-Oct-21.47499). Diameter approximately 0.008 km. from weighted mean H=28.08.
2017 TD6JPL Sentry17002081-208113.521e-08-8.67-8.670JPL: Computed at 10:30 Feb. 10th of 2018 Pacific time based on 96 observations spanning 8.1160 days (2017-Oct-11.41171 to 2017-Oct-19.527745). Diameter approximately 0.012 km. from weighted mean H=27.18.
2017 MZ8JPL Sentry17002023-2119623.21284e-08-5.82-6.220JPL: Computed at 12:34 Dec. 18th of 2019 Pacific time based on 7 observations spanning 1.0629 days (2017-Jun-22.55376 to 2017-Jun-23.616624). Diameter approximately 0.112 km. from weighted mean H=22.38.
2016 TY55JPL Sentry17002074-2118184.9085295e-05-5.52-5.600JPL: Computed at 07:03 July 17th of 2019 Pacific time based on 45 observations spanning 9.0714 days (2016-Oct-10.37293 to 2016-Oct-19.44429). Diameter approximately 0.014 km. from weighted mean H=26.86.
2014 UY57JPL Sentry17002071-207625.961e-08-8.38-8.600JPL: Computed at 23:52 April 8th of 2017 Pacific time based on 30 observations spanning 4.9819 days (2014-Oct-25.31921 to 2014-Oct-30.301115). Diameter approximately 0.012 km. from weighted mean H=27.18.
2012 UU158JPL Sentry17002042-207852.913812e-06-6.43-6.480JPL: Computed at 13:26 April 10th of 2017 Pacific time based on 10 observations spanning 13.951 days (2012-Oct-23.505478 to 2012-Nov-06.456322). Diameter approximately 0.014 km. from weighted mean H=26.89.
2011 UA64JPL Sentry17002113-211318.671e-08-8.22-8.220JPL: Computed at 07:00 July 16th of 2019 Pacific time based on 26 observations spanning 2.9735 days (2011-Oct-20.405414 to 2011-Oct-23.37892). Diameter approximately 0.013 km. from weighted mean H=27.02.
2005 UA1JPL Sentry17002036-203619.136e-08-7.10-7.100JPL: Computed at 18:46 April 8th of 2017 Pacific time based on 33 observations spanning 19.020 days (2005-Oct-23.32066 to 2005-Nov-11.340244). Diameter approximately 0.018 km. from weighted mean H=26.35.
1993 UAJPL Sentry17002111-211127.143e-07-6.69-6.850JPL: Computed at 09:32 April 7th of 2017 Pacific time based on 15 observations spanning 3.0692 days (1993-Oct-21.41449 to 1993-Oct-24.48365). Diameter approximately 0.028 km. from weighted mean H=25.44.

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 20 October '20

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

2231Noted that NEODyS has updated its 2020 TJ3 risk assessment - see above
Noted that NEODyS has updated its 2020 TK5 risk assessment - see above
Noted that NEODyS has updated its 2020 TY4 risk assessment - see above
Noted that NEODyS has updated its 2020 UA risk assessment - see above
Noted that NEODyS has updated its 2020 UE risk assessment - see above
Noted that NEODyS has updated its 2020 UJ risk assessment - see above
Noted that JPL Sentry has posted 2020 UK2 as an impact risk - see above
Noted that NEODyS has posted 2020 UK2 as an impact risk - see above
Noted that NEODyS has updated its 2020 UY risk assessment - see above
Grabbed MPEC 2020-U139 - 2020 UJ2 - see above
Grabbed MPEC 2020-U140 - 2020 UK2 - see above
Grabbed MPEC 2020-U141 - 2020 UL2 - see above
Grabbed MPEC 2020-U142 - 2020 UM2 - see above
1801Grabbed MPEC 2020-U138 - 2006 HY5 - see above
1700Noted that JPL Sentry has updated its 1993 UA risk assessment - see above
Noted that JPL Sentry has updated its 2005 UA1 risk assessment - see above
Noted that JPL Sentry has updated its 2011 UA64 risk assessment - see above
Noted that JPL Sentry has updated its 2012 UU158 risk assessment - see above
Noted that JPL Sentry has updated its 2014 UY57 risk assessment - see above
Noted that JPL Sentry has updated its 2016 TY55 risk assessment - see above
Noted that JPL Sentry has updated its 2017 MZ8 risk assessment - see above
Noted that JPL Sentry has updated its 2017 TD6 risk assessment - see above
Noted that JPL Sentry has updated its 2017 UL52 risk assessment - see above
Noted that JPL Sentry has updated its 2020 TJ3 risk assessment - see above
Noted that JPL Sentry has updated its 2020 TK5 risk assessment - see above
Noted that JPL Sentry has updated its 2020 TS4 risk assessment - see above
Noted that JPL Sentry has updated its 2020 TY4 risk assessment - see above
Noted that JPL Sentry has updated its 2020 UA risk assessment - see above
Noted that JPL Sentry has updated its 2020 UE risk assessment - see above
Noted that JPL Sentry has updated its 2020 UH risk assessment - see above
Noted that JPL Sentry has updated its 2020 UJ risk assessment - see above
Noted that JPL Sentry has updated its 2020 UX risk assessment - see above
Noted that JPL Sentry has updated its 2020 UY risk assessment - see above
Grabbed MPEC 2020-U132 - Daily Orbit Update - see above
Grabbed MPEC 2020-U133 - 2000 CN33 - see above
Grabbed MPEC 2020-U134 - 2020 UG2 - see above
Grabbed MPEC 2020-U135 - 2020 UH2 - see above
Grabbed MPEC 2020-U136 - 2015 UW67 - see above
Grabbed MPEC 2020-U137 - 2020 TR8 - see above
0400Grabbed MPEC 2020-U129 - 2020 UD2 - see above
Grabbed MPEC 2020-U130 - 2020 UE2 - see above
Grabbed MPEC 2020-U131 - 2020 UF2 - see above