Contents  on 23 May '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 23 May '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, 44 were "one nighters." So far The Tracking News has counted a total of 85 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 23 May '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-K147 - "21:05 UT" - 2020 JP3


MPEC 2020-K146 - "21:02 UT" - 2020 KU3


MPEC 2020-K145 - "18:53 UT" - 2014 KG39


MPEC 2020-K144 - "15:22 UT" - 2020 KT3


MPEC 2020-K143 - "15:18 UT" - 2020 KS3


MPEC 2020-K142 - "13:08 UT" - 2017 WV


MPEC 2020-K141 - "13:05 UT" - 2020 KP3


MPEC 2020-K140 - "13:02 UT" - 2020 KO3


MPEC 2020-K139 - "13:00 UT" - 2020 KN3


<< DOU on 23 May '20 >>  MPEC 2020-K138 - "12:01 UT" - Daily Orbit Update


MPEC 2020-K137 - "06:05 UT" - 2020 KM3


MPEC 2020-K136 - "04:59 UT" - 2020 KL3


MPEC 2020-K135 - "01:27 UT" - 2020 KK3


MPEC 2020-K134 - "01:02 UT" - Comet P/2019 LD2 (ATLAS)

Observers  on 23 May '20

A total of 46 observers appear in today's MPECs.

CodeObserver / observatory
E23Arcadia Obs. in New South Wales, 1 in MPEC 2020-K134 -- P/2019 LD2
H21Astronomical Research Obs. Westfield in Illinois, 4 in MPECs 2020-K134 & 2020-K138 -- 2020 KG, 2020 JQ1, 2020 BG8, P/2019 LD2
T05ATLAS Haleakala in Hawaii, 11 in MPECs 2020-K134 & 2020-K138 -- P/2019 LD2, 85275, 513170, 477885, 35107, 331471, 159929, 138847, 8566, 6569, 1864
T08ATLAS Mauna Loa in Hawaii, 30 in MPECs 2020-K134 & 2020-K138 -- 2020 JU, 2020 HT2, 2020 HF1, 2020 GF3, 2020 BO5, 2019 UO9, P/2019 LD2, 2001 QC34, 2000 KA, 99935, 54401, 539940, 53435, 438908, 428086, 382503, 36183, 325395, 276111, 267494, 19764, 169675, 141078, 137911, 137064, 8014, 6053, 6050, 4954, 1685
160Castelmartini Obs. in Italy, 5 in MPEC 2020-K138 -- 90075, 66251, 35107, 136874, 8014
703Catalina Sky Survey (CSS) in Arizona, 18 in MPEC 2020-K138 -- 2011 JX1, 2002 XQ40, 2000 KA, 99935, 65909, 54401, 495615, 494706, 36183, 349063, 242216, 19764, 142555, 141053, 137064, 8014, 6050, 1685
V06Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) in Arizona, 9 in MPECs 2020-K135, 2020-K138, 2020-K142, 2020-K144 & 2020-K146 -- 2020 KU3, 2020 KT3, 2020 KS1, 2020 KK3, 2020 JL2, 2020 JK1, 2020 JB1, 2019 FD, 2017 WV
G58Chabot Obs. in northern California, 1 in MPEC 2020-K138 -- 2020 KJ3
850Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2020-K134 -- P/2019 LD2
N55Corona Borealis Obs. in Tibet, 1 in MPEC 2020-K134 -- P/2019 LD2
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2020-K134 -- P/2019 LD2
F65Faulkes Telescope North in Hawaii, 1 in MPEC 2020-K134 -- P/2019 LD2
K83Forti Obs., 6 in MPEC 2020-K138 -- 85275, 85184, 331471, 184990, 175189, 137199
E89Geyserland Obs. in New Zealand, 6 in MPEC 2020-K138 -- 90075, 36183, 190166, 142555, 8014, 6050
K88GINOP-KHK in Hungary, 1 in MPEC 2020-K134 -- P/2019 LD2
U76Glendora Obs., 1 in MPEC 2020-K138 -- 99935
K73Gravina Obs. in Italy, 3 in MPEC 2020-K138 -- 333555, 331471, 106589
J95Great Shefford Obs. in England, 3 in MPECs 2020-K138 & 2020-K141 -- 2020 KU, 2020 KP3, 2020 KJ3
A17Guidestar Obs. in Germany, 1 in MPEC 2020-K134 -- P/2019 LD2
H06|Hidetaka Sato in Japan via iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2020-K134 -- P/2019 LD2
Q62iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-K138 -- 11885
Q621Hidetaka Sato in Japan via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-K134 -- P/2019 LD2
U68JPL SynTrack Robotic Telescope, 1 in MPEC 2020-K138 -- 2020 HF3
568^R. Wainscoat on Mauna Kea in Hawaii, 6 in MPECs 2020-K135, 2020-K136, 2020-K139, 2020-K143, 2020-K144 & 2020-K147 -- 2020 KT3, 2020 KS3, 2020 KN3, 2020 KL3, 2020 KK3, 2020 JP3
G96Mt. Lemmon Survey (MLS) in Arizona, 33 in MPECs 2020-K136, 2020-K138, 2020-K139, 2020-K140, 2020-K141, 2020-K142 & 2020-K146 -- 2020 KU3, 2020 KQ, 2020 KP3, 2020 KP1, 2020 KO3, 2020 KN3, 2020 KM3, 2020 KL3, 2020 KE, 2020 HF3, 2020 FA3, 2017 WV, 2015 TA145, 2013 ON5, 2012 QQ10, 85989, 68347, 66251, 523633, 518737, 513125, 468448, 416231, 250620, 210012, 186822, 18172, 163081, 162210, 154229, 141495, 11311, 1221
F51Pan-STARRS 1 (PS1) in Hawaii, 15 in MPECs 2020-K134, 2020-K135, 2020-K136, 2020-K137, 2020-K138, 2020-K139, 2020-K140, 2020-K142, 2020-K143, 2020-K144, 2020-K145 & 2020-K147 -- 2020 KT3, 2020 KS3, 2020 KO3, 2020 KN3, 2020 KM3, 2020 KL3, 2020 KK3, 2020 JP3, 2020 BO5, P/2019 LD2, 2017 WV, 2014 KG39, 2010 JK33, 357024, 11284
F52Pan-STARRS 2 (PS2) in Hawaii, 6 in MPECs 2020-K134, 2020-K138 & 2020-K146 -- 2020 KU3, P/2019 LD2, 2016 GT220, 2006 PY17, 463257, 4954
654Pomona College Table Mtn. Obs. (PCTMO) in southern California, 3 in MPECs 2020-K136 & 2020-K138 -- 2020 KV2, 2020 KU2, 2020 KL3
D29Purple Mtn. Obs. Xuyi Station in China, 1 in MPEC 2020-K134 -- P/2019 LD2
Y16ROCG, 1 in MPEC 2020-K138 -- 144411
104San Marcello Pistoiese Obs. in Italy, 4 in MPECs 2020-K136, 2020-K138 & 2020-K141 -- 2020 KP3, 2020 KL3, 2002 VR85, 2000 KA
233San Vito Obs. in Italy, 1 in MPEC 2020-K138 -- 137199
H36Sandlot Obs. in Kansas, 2 in MPECs 2020-K137 & 2020-K138 -- 2020 KM3, 2020 HS8
C95SATINO-1 in France, 1 in MPEC 2020-K138 -- 4257
204Schiaparelli Obs. in Italy, 1 in MPEC 2020-K136 -- 2020 KL3
033Schwarzschild Obs. in Germany, 20 in MPEC 2020-K138 -- 2020 KZ2, 2020 KY2, 2020 KW1, 2020 KV2, 2020 KU2, 2020 KU, 2020 KT2, 2020 KS2, 2020 KN2, 2020 KM3, 2020 KL3, 2020 KJ, 2020 KG3, 2020 KG, 2020 KD1, 2020 KC3, 2020 KB3, 2020 KB, 2020 JN3, 2020 JH2
G40'W.F. Cashwell in Nevada via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2020-K138 -- 2007 HX82
G40-program code "-" (22) via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2020-K134 -- P/2019 LD2
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2020-K134 -- P/2019 LD2
I93St. Pardon de Conques Obs. in France, 1 in MPEC 2020-K136 -- 2020 KL3
I52Steward Obs. Mt. Lemmon Station in Arizona, 52 in MPECs 2020-K134, 2020-K135, 2020-K136, 2020-K137, 2020-K138, 2020-K139, 2020-K140, 2020-K141 & 2020-K143 -- 2020 KZ1, 2020 KZ, 2020 KY1, 2020 KX1, 2020 KX, 2020 KV1, 2020 KV, 2020 KU2, 2020 KU1, 2020 KS3, 2020 KS, 2020 KP3, 2020 KP2, 2020 KP1, 2020 KO3, 2020 KO2, 2020 KN3, 2020 KN2, 2020 KN1, 2020 KM3, 2020 KM1, 2020 KM, 2020 KL3, 2020 KL, 2020 KK3, 2020 KJ1, 2020 KF2, 2020 KF, 2020 KE2, 2020 KD2, 2020 KC, 2020 KB, 2020 JY1, 2020 JX, 2020 JT2, 2020 JT, 2020 JP1, 2020 JN3, 2020 JL3, 2020 JE1, 2020 JD, 2020 HW9, 2020 HV1, 2020 HO8, 2020 HO10, 2020 HL7, 2020 HG9, 2020 HC10, 2020 HB2, 2020 HB10, 2019 TL4, P/2019 LD2
673!Jana Pittichova Chesley via Table Mtn. Obs. in southern California, 3 in MPECs 2020-K137, 2020-K140 & 2020-K146 -- 2020 KU3, 2020 KO3, 2020 KM3
858Tebbutt Obs. in New Mexico, 1 in MPEC 2020-K146 -- 2020 KU3
I76Tesla Obs. in Spain, 1 in MPEC 2020-K138 -- 2017 ME
T14UH/Tholen NEO Follow-Up CFH Telescope in Hawaii, 1 in MPEC 2020-K138 -- 2020 HJ4
L01Visnjan Obs. in Croatia, 4 in MPECs 2020-K134, 2020-K135, 2020-K136 & 2020-K141 -- 2020 KP3, 2020 KL3, 2020 KK3, P/2019 LD2
G33Wickede Obs. in Germany, 1 in MPEC 2020-K138 -- 331471
I41Zwicky Transient Facility (ZTF) in southern California, 8 in MPECs 2020-K134 & 2020-K138 -- 2020 JD, P/2019 LD2, 2003 MS2, 68350, 510073, 483878, 318050, 144861
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 23 May '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 KU3JPL Sentry22302090-211946.443e-10-6.23-6.650JPL: Computed at 14:59 today Pacific time based on 20 observations spanning 2.0118 days (2020-May-21.37464 to 2020-May-23.38639). Diameter approximately 0.460 km. from weighted mean H=19.35.
2020 KO3JPL Sentry17402031-208942.3491e-08-4.65-4.830JPL: Computed at 07:19 today Pacific time based on 12 observations spanning 3.8675 days (2020-May-19.553539 to 2020-May-23.42104). Diameter approximately 0.365 km. from weighted mean H=19.85.
NEODyS17402031-208931.62e-09-6.06-6.280NEODyS: "Based on 12 optical observations (of which 0 are rejected as outliers) from 2020-05-19.554 to 2020-05-23.422."
2020 KN3JPL Sentry17402037-205731.4604e-08-4.65-4.880JPL: Computed at 07:16 today Pacific time based on 24 observations spanning 4.8540 days (2020-May-18.554788 to 2020-May-23.40883). Diameter approximately 0.463 km. from weighted mean H=19.34.
2020 KE3NEODyS17402061-210823.08e-09-9.54-9.720NEODyS: "Based on 11 optical observations (of which 0 are rejected as outliers) from 2020-05-21.416 to 2020-05-22.606."
2020 KD3NEODyS17402069-21152104.21e-04-4.40-4.740NEODyS: "Based on 14 optical observations (of which 0 are rejected as outliers) from 2020-05-16.381 to 2020-05-22.252."
2020 KB3JPL Sentry17402052-205216.956e-08-6.84-6.840JPL: Computed at 07:43 today Pacific time based on 21 observations spanning 1.9408 days (2020-May-20.375682 to 2020-May-22.316446). Diameter approximately 0.043 km. from weighted mean H=24.48.
NEODyS1740210414.54e-09-8.44-8.440NEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2020-05-20.376 to 2020-05-22.317."
2020 KU2NEODyS1740210517.02e-09-8.71-8.710NEODyS: "Based on 49 optical observations (of which 0 are rejected as outliers) from 2020-05-16.426 to 2020-05-23.161."
2020 KN2JPL Sentry17402063-2119152.3289043e-05-5.49-5.550JPL: Computed at 07:48 today Pacific time based on 25 observations spanning 2.7806 days (2020-May-20.412007 to 2020-May-23.19263). Diameter approximately 0.017 km. from weighted mean H=26.56.
NEODyS17402063-2117131.83e-05-5.59-5.630NEODyS: "Based on 25 optical observations (of which 0 are rejected as outliers) from 2020-05-20.413 to 2020-05-23.193."
2020 KM1JPL Sentry17402077-207718.095e-09-6.45-6.450JPL: Computed at 07:42 today Pacific time based on 35 observations spanning 4.9188 days (2020-May-18.23424 to 2020-May-23.15303). Diameter approximately 0.110 km. from weighted mean H=22.37.
2020 KD1JPL Sentry17402042-206121.373e-07-8.00-8.050JPL: Computed at 08:03 today Pacific time based on 45 observations spanning 3.6978 days (2020-May-18.33002 to 2020-May-22.027867). Diameter approximately 0.009 km. from weighted mean H=27.84.
NEODyS17402042-206141.4e-07-8.03-8.110NEODyS: "Based on 45 optical observations (of which 0 are rejected as outliers) from 2020-05-18.331 to 2020-05-22.029."
2020 KUJPL Sentry17402070-2108200.0001309849488-5.83-6.130JPL: Computed at 07:48 today Pacific time based on 56 observations spanning 5.7496 days (2020-May-17.330559 to 2020-May-23.080131). Diameter approximately 0.007 km. from weighted mean H=28.48.
NEODyS17402070-2108201.29e-05-6.83-7.350NEODyS: "Based on 57 optical observations (of which 1 are rejected as outliers) from 2020-05-17.331 to 2020-05-23.081."
2020 KSJPL Sentry17402055-2119202.97703185e-05-5.08-5.280JPL: Computed at 07:54 today Pacific time based on 82 observations spanning 6.6980 days (2020-May-16.491732 to 2020-May-23.18969). Diameter approximately 0.025 km. from weighted mean H=25.70.
NEODyS17402055-2112391.42e-05-5.40-5.760NEODyS: "Based on 82 optical observations (of which 2 are rejected as outliers) from 2020-05-16.493 to 2020-05-23.190."
2020 HJ4JPL Sentry1740R E M O V E DJPL: Risk listing removed at 1423 UTC today
2009 WZ53JPL Sentry17402025-210471.04078e-08-7.46-7.870JPL: Computed at 20:49 April 11th of 2017 Pacific time based on 22 observations spanning 2.9471 days (2009-Nov-23.28123 to 2009-Nov-26.22829). Diameter approximately 0.052 km. from weighted mean H=24.09.
NEODyS17402025-2109152.61e-08-7.15-7.70NEODyS: "Based on 22 optical observations (of which 0 are rejected as outliers) from 2009-11-23.282 to 2009-11-26.229."

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 23 May '20

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

2230Noted that JPL Sentry has posted 2020 KU3 as an impact risk - see above
2137Grabbed MPEC 2020-K146 - 2020 KU3 - see above
Grabbed MPEC 2020-K147 - 2020 JP3 - see above
1906Grabbed MPEC 2020-K145 - 2014 KG39 - see above
1740Noted that JPL Sentry has updated its 2009 WZ53 risk assessment - see above
Noted that NEODyS has updated its 2009 WZ53 risk assessment - see above
Noted that JPL Sentry has removed 2020 HJ4 as an impact risk - see above
Noted that JPL Sentry has updated its 2020 KB3 risk assessment - see above
Noted that NEODyS has posted 2020 KB3 as an impact risk - see above
Noted that JPL Sentry has updated its 2020 KD1 risk assessment - see above
Noted that NEODyS has updated its 2020 KD1 risk assessment - see above
Noted that NEODyS has posted 2020 KD3 as an impact risk - see above
Noted that NEODyS has posted 2020 KE3 as an impact risk - see above
Noted that JPL Sentry has updated its 2020 KM1 risk assessment - see above
Noted that JPL Sentry has updated its 2020 KN2 risk assessment - see above
Noted that NEODyS has updated its 2020 KN2 risk assessment - see above
Noted that JPL Sentry has posted 2020 KN3 as an impact risk - see above
Noted that JPL Sentry has posted 2020 KO3 as an impact risk - see above
Noted that NEODyS has posted 2020 KO3 as an impact risk - see above
Noted that JPL Sentry has updated its 2020 KS risk assessment - see above
Noted that NEODyS has updated its 2020 KS risk assessment - see above
Noted that JPL Sentry has updated its 2020 KU risk assessment - see above
Noted that NEODyS has updated its 2020 KU risk assessment - see above
Noted that NEODyS has posted 2020 KU2 as an impact risk - see above
Grabbed MPEC 2020-K138 - Daily Orbit Update - see above
Grabbed MPEC 2020-K139 - 2020 KN3 - see above
Grabbed MPEC 2020-K140 - 2020 KO3 - see above
Grabbed MPEC 2020-K141 - 2020 KP3 - see above
Grabbed MPEC 2020-K142 - 2017 WV - see above
Grabbed MPEC 2020-K143 - 2020 KS3 - see above
Grabbed MPEC 2020-K144 - 2020 KT3 - see above
0612Grabbed MPEC 2020-K136 - 2020 KL3 - see above
Grabbed MPEC 2020-K137 - 2020 KM3 - see above
0430Grabbed MPEC 2020-K134 - Comet P/2019 LD2 (ATLAS) - see above
Grabbed MPEC 2020-K135 - 2020 KK3 - see above