Contents  on 20 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 20 May '20

The MPC's NEO Confirmation Page has 91 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 91 objects listed. Of these, 51 were "one nighters." So far The Tracking News has counted a total of 115 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 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-K91 - "23:19 UT" - 2020 KW1


MPEC 2020-K90 - "22:10 UT" - 2020 KV1


MPEC 2020-K89 - "22:06 UT" - 2020 KU1


MPEC 2020-K88 - "16:13 UT" - 2020 KS1


MPEC 2020-K87 - "16:04 UT" - 2020 JJ3


<< DOU on 20 May '20 >>  MPEC 2020-K86 - "12:13 UT" - Daily Orbit Update


MPEC 2020-K85 - "11:56 UT" - 2020 KR1


MPEC 2020-K84 - "11:54 UT" - 2020 KQ1


MPEC 2020-K83 - "08:09 UT" - 2020 KP1


MPEC 2020-K82 - "06:20 UT" - 2020 KO1


MPEC 2020-K81 - "06:19 UT" - 2020 JG3


MPEC 2020-K80 - "04:33 UT" - 2020 KN1


MPEC 2020-K79 - "01:55 UT" - 2020 KM1


MPEC 2020-K78 - "01:51 UT" - 2020 JF3

Observers  on 20 May '20

A total of 35 observers appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 9 in MPEC 2020-K86 -- 2020 JX, 2020 JL2, 2020 JG2, 2020 JE2, 2020 JD, 2020 HG9, 2020 FW3, 86667, 137199
T05ATLAS Haleakala in Hawaii, 6 in MPEC 2020-K86 -- 331471, 184990, 163693, 137199, 106589, 1866
T08ATLAS Mauna Loa in Hawaii, 36 in MPEC 2020-K86 -- 2020 JY1, 2020 HT2, 2018 GX4, 2013 XA22, 2006 UD63, 2006 HB, 2004 LU3, 2000 KA, 85989, 85628, 68278, 66251, 65909, 54789, 494706, 354952, 315098, 190166, 186822, 175189, 159929, 152756, 145656, 142781, 142555, 141053, 136923, 136874, 136618, 11066, 7977, 7753, 6050, 2102, 1917, 1685
L65Bredenkamp Obs., 1 in MPEC 2020-K86 -- 85628
703Catalina Sky Survey (CSS) in Arizona, 10 in MPEC 2020-K86 -- 2020 JX, 2015 FP332, 500094, 474549, 276274, 184990, 137199, 108906, 106589, 1866
V06Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) in Arizona, 5 in MPECs 2020-K81, 2020-K85 & 2020-K86 -- 2020 KR1, 2020 JV1, 2020 JJ2, 2020 JG3, 2015 KJ157
807Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2020-K86 -- 2005 CC37
G37Discovery Channel Telescope in Arizona, 1 in MPEC 2020-K86 -- 2000 LK
734Farpoint Obs. in Kansas, 4 in MPECs 2020-K82, 2020-K83, 2020-K86 & 2020-K89 -- 2020 KU1, 2020 KP1, 2020 KO1, 2020 HV9
F652Lothar Kurtze in Germany via Faulkes Telescope North in Hawaii, 1 in MPEC 2020-K80 -- 2020 KN1
U55Golden Ears Obs., 1 in MPEC 2020-K86 -- 184990
J95Great Shefford Obs. in England, 6 in MPECs 2020-K79, 2020-K83, 2020-K86, 2020-K89 & 2020-K91 -- 2020 KW1, 2020 KU1, 2020 KU, 2020 KR, 2020 KP1, 2020 KM1
C401program code 1 via Kuban State Univ. Obs. in Russia, 2 in MPEC 2020-K86 -- 2000 KA, 137199
Z22MASTER IAC Obs. in the Canary Islands, 1 in MPEC 2020-K86 -- 1627
W92MASTER OAFA Obs., 1 in MPEC 2020-K86 -- 1627
568^R. Wainscoat on Mauna Kea in Hawaii, 4 in MPECs 2020-K78, 2020-K84, 2020-K87 & 2020-K88 -- 2020 KS1, 2020 KQ1, 2020 JJ3, 2020 JF3
474Mt. John Obs. in New Zealand, 7 in MPECs 2020-K86 & 2020-K88 -- 2020 KS1, 2020 KL, 2020 JZ1, 2020 JY, 2020 HP8, 2019 YJ4, 2012 SV20
G96Mt. Lemmon Survey (MLS) in Arizona, 31 in MPECs 2020-K79, 2020-K80, 2020-K85, 2020-K86, 2020-K90 & 2020-K91 -- 2020 KX, 2020 KW1, 2020 KV1, 2020 KU, 2020 KS, 2020 KR1, 2020 KN1, 2020 KM1, 2020 HW4, 2020 HT9, 2020 HM1, 2019 NN36, 2016 UT80, 2015 TX143, 2009 FU4, 86667, 85184, 522684, 482566, 477885, 403775, 378610, 373428, 25330, 214088, 163692, 163683, 162980, 154993, 152575, 11405
F51Pan-STARRS 1 (PS1) in Hawaii, 30 in MPECs 2020-K78, 2020-K81, 2020-K83, 2020-K85, 2020-K86, 2020-K87 & 2020-K88 -- 2020 KS1, 2020 KR1, 2020 KP1, 2020 JT, 2020 JP2, 2020 JM1, 2020 JJ3, 2020 JG3, 2020 JF3, 2020 HS8, 2020 HQ4, 2020 HH10, 2020 HD7, 2020 BO5, 2018 DN1, 2016 PL1, 2015 HB10, 2010 JK33, 2010 JJ3, 2006 KR1, 2002 XU4, 2000 CR101, 37655, 357024, 238456, 162157, 137911, 136874, 11284, 9950
F52Pan-STARRS 2 (PS2) in Hawaii, 19 in MPECs 2020-K82, 2020-K83, 2020-K84, 2020-K86 & 2020-K89 -- 2020 KU1, 2020 KQ1, 2020 KP1, 2020 KO1, 2020 KB, 2020 JK1, 2020 HV9, 2020 HQ2, 2020 HC10, 2017 MW7, 2017 KA3, 85628, 368664, 277142, 250614, 18109, 152941, 141053, 1917
B49Paus Obs. in Spain, 1 in MPEC 2020-K86 -- 2020 JY1
323Perth Obs. in Western Australia, 1 in MPEC 2020-K86 -- 267494
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 11 in MPEC 2020-K86 -- 2020 FW3, 2014 LW21, 2013 XA22, 2013 ON5, 2010 EC135, 2007 HX82, 2006 HB, 2002 VR85, 2000 KA, 85184, 137199
D29Purple Mtn. Obs. Xuyi Station in China, 14 in MPEC 2020-K86 -- 2013 XA22, 2004 LU3, 2004 FF29, 2002 VR85, 2000 KA, 65909, 498066, 39796, 26760, 237551, 19764, 142781, 11405, 1685
C95SATINO-1 in France, 1 in MPEC 2020-K86 -- 3753
033Schwarzschild Obs. in Germany, 5 in MPECs 2020-K79, 2020-K80, 2020-K89, 2020-K90 & 2020-K91 -- 2020 KW1, 2020 KV1, 2020 KU1, 2020 KN1, 2020 KM1
645Sloan Digital Sky Survey (SDSS) in New Mexico, 8 in MPEC 2020-K86 -- 2015 KJ157, 2015 BF4, 2015 AA246, 2014 QL390, 2014 LW21, 2014 HR4, 2008 OX8, 2006 SP198
L80SpringBok Obs., 1 in MPEC 2020-K86 -- 2020 KD1
I93St. Pardon de Conques Obs. in France, 6 in MPECs 2020-K79, 2020-K80, 2020-K82, 2020-K83, 2020-K86 & 2020-K89 -- 2020 KU1, 2020 KU, 2020 KP1, 2020 KO1, 2020 KN1, 2020 KM1
I52Steward Obs. Mt. Lemmon Station in Arizona, 27 in MPECs 2020-K79, 2020-K80, 2020-K82, 2020-K83, 2020-K86, 2020-K88, 2020-K89, 2020-K90 & 2020-K91 -- 2020 KX, 2020 KW1, 2020 KV1, 2020 KU1, 2020 KU, 2020 KS1, 2020 KS, 2020 KP1, 2020 KO1, 2020 KN1, 2020 KM1, 2020 KL, 2020 KD1, 2020 JY1, 2020 JV, 2020 JU1, 2020 JR1, 2020 JR, 2020 JP1, 2020 JN2, 2020 JH2, 2020 JG2, 2020 JE1, 2020 JB1, 2020 JB, 2020 HW1, 2020 HG9
673!Jana Pittichova Chesley via Table Mtn. Obs. in southern California, 1 in MPEC 2020-K84 -- 2020 KQ1
858Tebbutt Obs. in New Mexico, 3 in MPECs 2020-K83, 2020-K87 & 2020-K89 -- 2020 KU1, 2020 KP1, 2020 JJ3
A16Tentlingen Obs. in Switzerland, 3 in MPEC 2020-K86 -- 2020 HT2, 2010 EC135, 190166
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-K86 -- 2015 AR45
L01Visnjan Obs. in Croatia, 5 in MPECs 2020-K80, 2020-K82, 2020-K86, 2020-K90 & 2020-K91 -- 2020 KW1, 2020 KV1, 2020 KU, 2020 KO1, 2020 KN1
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 20 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 KM1NEODyS1630207714.39e-10-7.77-7.770NEODyS: "Based on 23 optical observations (of which 0 are rejected as outliers) from 2020-05-18.235 to 2020-05-19.966."
JPL Sentry04212077-207711.279e-08-6.29-6.290JPL: Computed at 19:58 May 19th Pacific time based on 23 observations spanning 1.7308 days (2020-May-18.23424 to 2020-May-19.965058). Diameter approximately 0.110 km. from weighted mean H=22.45.
2020 KD1JPL Sentry20022042-206125.802e-07-7.37-7.420JPL #2 for the day: Computed at 12:01 today Pacific time based on 34 observations spanning 1.8292 days (2020-May-18.33002 to 2020-May-20.15918). Diameter approximately 0.009 km. from weighted mean H=27.82.
NEODyS16302042-206148.07e-07-7.29-7.430NEODyS: "Based on 34 optical observations (of which 0 are rejected as outliers) from 2020-05-18.331 to 2020-05-20.160."
2020 KUJPL Sentry16302070-2111220.000499136541-5.24-5.560JPL: Computed at 09:03 today Pacific time based on 31 observations spanning 2.8810 days (2020-May-17.330559 to 2020-May-20.21157). Diameter approximately 0.007 km. from weighted mean H=28.44.
NEODyS16302070-2111383.64e-04-5.40-5.740NEODyS: "Based on 32 optical observations (of which 1 are rejected as outliers) from 2020-05-17.331 to 2020-05-20.212."
2020 KSJPL Sentry16302064-2119204.4798618e-05-4.88-5.050JPL: Computed at 09:02 today Pacific time based on 50 observations spanning 3.8557 days (2020-May-16.491732 to 2020-May-20.34743). Diameter approximately 0.025 km. from weighted mean H=25.65.
NEODyS16302055-2118532.3e-05-5.19-5.450NEODyS: "Based on 50 optical observations (of which 2 are rejected as outliers) from 2020-05-16.493 to 2020-05-20.348."
2020 HQ4JPL Sentry16302051-2119548.7950823e-05-5.29-5.840JPL: Computed at 08:44 today Pacific time based on 111 observations spanning 27.265 days (2020-Apr-22.14953 to 2020-May-19.414065). Diameter approximately 0.014 km. from weighted mean H=26.93.
NEODyS16302059-21181216.38e-05-5.49-6.030NEODyS: "Based on 114 optical observations (of which 1 are rejected as outliers) from 2020-04-22.150 to 2020-05-19.415."
2019 QU3JPL Sentry16302113-211721.0532031e-05-7.21-7.210JPL: Computed at 01:30 today Pacific time based on 26 observations spanning 12.219 days (2019-Aug-27.34466 to 2019-Sep-08.563848). Diameter approximately 0.006 km. from weighted mean H=28.71.
2005 CC37JPL Sentry16302117-211711.863e-06-5.01-5.010JPL: Computed at 08:32 today Pacific time based on 96 observations spanning 54.509 days (2005-Jan-13.037157 to 2005-Mar-08.54601). Diameter approximately 0.098 km. from weighted mean H=22.68.
NEODyS1630211714.95e-07-5.65-5.650NEODyS: "Based on 99 optical observations (of which 3 are rejected as outliers) from 2005-01-13.038 to 2005-03-08.547."

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 May '20

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

2331Grabbed MPEC 2020-K91 - 2020 KW1 - see above
2241Grabbed MPEC 2020-K89 - 2020 KU1 - see above
Grabbed MPEC 2020-K90 - 2020 KV1 - see above
2002Noted that JPL Sentry has updated its 2020 KD1 risk assessment - see above
1630Noted that JPL Sentry has updated its 2005 CC37 risk assessment - see above
Noted that NEODyS has updated its 2005 CC37 risk assessment - see above
Noted that JPL Sentry has updated its 2019 QU3 risk assessment - see above
Noted that JPL Sentry has updated its 2020 HQ4 risk assessment - see above
Noted that NEODyS has updated its 2020 HQ4 risk assessment - 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 KM1 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
Grabbed MPEC 2020-K81 - 2020 JG3 - see above
Grabbed MPEC 2020-K82 - 2020 KO1 - see above
Grabbed MPEC 2020-K83 - 2020 KP1 - see above
Grabbed MPEC 2020-K84 - 2020 KQ1 - see above
Grabbed MPEC 2020-K85 - 2020 KR1 - see above
Grabbed MPEC 2020-K86 - Daily Orbit Update - see above
Grabbed MPEC 2020-K87 - 2020 JJ3 - see above
Grabbed MPEC 2020-K88 - 2020 KS1 - see above
0533Grabbed MPEC 2020-K80 - 2020 KN1 - see above
0421Noted that JPL Sentry has posted 2020 KM1 as an impact risk - see above
Grabbed MPEC 2020-K78 - 2020 JF3 - see above
Grabbed MPEC 2020-K79 - 2020 KM1 - see above