Contents  on 21 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 21 May '20

The MPC's NEO Confirmation Page has 92 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 92 objects listed. Of these, 63 were "one nighters." So far The Tracking News has counted a total of 124 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 21 May '20

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been 20 MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2020-K111 - "23:53 UT" - Comet C/2020 K1 (Panstarrs)


MPEC 2020-K110 - "23:25 UT" - Comet C/2020 H8 (Panstarrs)


MPEC 2020-K109 - "23:01 UT" - 2020 KN2


MPEC 2020-K108 - "22:52 UT" - 2020 KM2


MPEC 2020-K107 - "22:35 UT" - Comet C/2020 H7 (Lemmon)


MPEC 2020-K106 - "17:06 UT" - 2020 KJ2


<< DOU on 21 May '20 >>  MPEC 2020-K105 - "12:15 UT" - Daily Orbit Update


MPEC 2020-K104 - "11:56 UT" - 2020 KG2


MPEC 2020-K103 - "11:54 UT" - 2020 KF2


MPEC 2020-K102 - "11:53 UT" - 2020 JL3


MPEC 2020-K101 - "11:51 UT" - 2020 KE2


MPEC 2020-K100 - "11:49 UT" - 2020 KD2


MPEC 2020-K99 - "11:48 UT" - 2020 JK3


MPEC 2020-K98 - "09:35 UT" - 2020 KC2


MPEC 2020-K97 - "09:31 UT" - 2020 KB2


MPEC 2020-K96 - "09:09 UT" - 2020 KA2


MPEC 2020-K95 - "02:23 UT" - 2020 KZ1


MPEC 2020-K94 - "01:54 UT" - 2020 KY1


MPEC 2020-K93 - "01:51 UT" - 2020 KX1


MPEC 2020-K92 - "01:18 UT" - Comet P/2020 F1 = P/2002 E4 (Leonard)

Observers  on 21 May '20

A total of 60 observers appear in today's MPECs.

CodeObserver / observatory
U71AHS Obs., 5 in MPEC 2020-K105 -- 85628, 85184, 175189, 137199, 136874
B37Ametlla del Valles Obs. in Spain, 2 in MPECs 2020-K107 & 2020-K110 -- C/2020 H8, C/2020 H7
H21Astronomical Research Obs. Westfield in Illinois, 2 in MPECs 2020-K107 & 2020-K110 -- C/2020 H8, C/2020 H7
T05ATLAS Haleakala in Hawaii, 32 in MPEC 2020-K105 -- 2020 JV, 2020 HT2, 2020 FH6, 2020 BO5, 2019 UO9, 2016 FY14, 2013 XA22, 2004 LU3, 2002 XQ40, 2000 KA, 99935, 54401, 495615, 438908, 433992, 420302, 36183, 349063, 267494, 218863, 19764, 192563, 141531, 141053, 138911, 137064, 136923, 8014, 6050, 5751, 4954, 1685
T08ATLAS Mauna Loa in Hawaii, 27 in MPEC 2020-K105 -- 2020 KS, 2020 JY1, 2020 JE1, 2020 JD, 2020 HG9, 2020 FW3, 2010 EC135, 86667, 85275, 85184, 68350, 513170, 477885, 436030, 35107, 333555, 318050, 308242, 159929, 159608, 138847, 137170, 9400, 6569, 5626, 4055, 1627
B96Brixiis Obs. in Belgium, 3 in MPECs 2020-K107, 2020-K110 & 2020-K111 -- C/2020 K1, C/2020 H8, C/2020 H7
Z84Calar Alto Schmidt in Spain, 1 in MPEC 2020-K100 -- 2020 KD2
703Catalina Sky Survey (CSS) in Arizona, 27 in MPECs 2020-K100 & 2020-K105 -- 2020 KD2, 2020 JG2, 2020 FW3, 89830, 86667, 85184, 68350, 524530, 522684, 511523, 510073, 436030, 425450, 35107, 333555, 25330, 242216, 20460, 20255, 155140, 154278, 137170, 115052, 11405, 9400, 1864, 1627
V06Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) in Arizona, 14 in MPECs 2020-K94, 2020-K96, 2020-K98, 2020-K104, 2020-K105 & 2020-K108 -- 2020 KY1, 2020 KY, 2020 KW, 2020 KT, 2020 KM2, 2020 KG2, 2020 KC2, 2020 KA2, 2020 KA1, 2020 JZ2, 2020 JG1, 2015 RG36, 2015 FO124, 2013 TV144
K87Dettelbach Vineyard Obs. in Germany, 6 in MPECs 2020-K100, 2020-K105, 2020-K110 & 2020-K111 -- 2020 KS, 2020 KD2, C/2020 K1, 2020 JX, C/2020 H8, 2020 FW3
734Farpoint Obs. in Kansas, 3 in MPECs 2020-K95, 2020-K100 & 2020-K104 -- 2020 KZ1, 2020 KG2, 2020 KD2
595Farra d'Isonzo Obs. in Italy, 2 in MPEC 2020-K105 -- 2020 JY1, 2013 XA22
F65,program code "," (21) via Faulkes Telescope North in Hawaii, 2 in MPECs 2020-K110 & 2020-K111 -- C/2020 K1, C/2020 H8
F652Lothar Kurtze in Germany via Faulkes Telescope North in Hawaii, 2 in MPECs 2020-K107 & 2020-K110 -- C/2020 H8, C/2020 H7
E89Geyserland Obs. in New Zealand, 3 in MPEC 2020-K105 -- 54401, 142555, 137064
J95Great Shefford Obs. in England, 7 in MPECs 2020-K93, 2020-K100, 2020-K103, 2020-K105, 2020-K107 & 2020-K110 -- 2020 KX1, 2020 KP1, 2020 KP, 2020 KF2, 2020 KD2, C/2020 H8, C/2020 H7
A17Guidestar Obs. in Germany, 1 in MPEC 2020-K111 -- C/2020 K1
U695Hidetaka Sato in Japan via iTelescope Obs. Auberry in northern California, 1 in MPEC 2020-K107 -- C/2020 H7
H06|Hidetaka Sato in Japan via iTelescope Obs. Mayhill in New Mexico, 2 in MPECs 2020-K110 & 2020-K111 -- C/2020 K1, C/2020 H8
695Kitt Peak Natl. Obs. in Arizona, 1 in MPEC 2020-K105 -- 2020 AV2
246KLENOT in the Czech Republic, 3 in MPECs 2020-K107, 2020-K110 & 2020-K111 -- C/2020 K1, C/2020 H8, C/2020 H7
C401program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-K105 -- 137199
950=program code "=" (38) via La Palma in the Canary Islands, 3 in MPEC 2020-K105 -- 354030, 243025, 214088
950>program code ">" (39) via La Palma in the Canary Islands, 1 in MPEC 2020-K105 -- 2019 PK
Z43Landehen Obs., 2 in MPEC 2020-K105 -- 184990, 106589
K38M57 Obs. in Italy, 3 in MPEC 2020-K105 -- 2020 KS, 2020 JY1, 2013 XA22
C10Maisoncelles Obs. in France, 2 in MPECs 2020-K110 & 2020-K111 -- C/2020 K1, C/2020 H8
Z22MASTER IAC Obs. in the Canary Islands, 1 in MPEC 2020-K105 -- 2017 ME
W92MASTER OAFA Obs., 1 in MPEC 2020-K105 -- 85275
K95MASTER-II Sutherland in South Africa, 3 in MPEC 2020-K105 -- 163243, 6569, 1627
568Mauna Kea in Hawaii, 1 in MPEC 2020-K105 -- 89136
568^R. Wainscoat on Mauna Kea in Hawaii, 8 in MPECs 2020-K95, 2020-K98, 2020-K99, 2020-K106, 2020-K108, 2020-K109, 2020-K110 & 2020-K111 -- 2020 KZ1, 2020 KN2, 2020 KM2, 2020 KJ2, 2020 KC2, C/2020 K1, 2020 JK3, C/2020 H8
B67Mirasteilas Obs. in Switzerland, 3 in MPEC 2020-K105 -- 2020 HV9, 2020 FW3, 2013 XA22
118Modra Obs. in Slovakia, 2 in MPECs 2020-K107 & 2020-K110 -- C/2020 H8, C/2020 H7
V01Mountainville Obs. in Utah, 1 in MPEC 2020-K105 -- 2020 JY1
474Mt. John Obs. in New Zealand, 8 in MPECs 2020-K95 & 2020-K105 -- 2020 KZ1, 2020 KP1, 2020 KN, 2020 JZ1, 2020 JZ, 2020 JX1, 2020 JV, 2020 JM1
G96Mt. Lemmon Survey (MLS) in Arizona, 29 in MPECs 2020-K93, 2020-K94, 2020-K96, 2020-K101, 2020-K103, 2020-K104, 2020-K105, 2020-K107 & 2020-K110 -- 2020 KY1, 2020 KX1, 2020 KV1, 2020 KG2, 2020 KF2, 2020 KE2, 2020 KA2, 2020 JT, 2020 JG1, 2020 JD, 2020 HS8, 2020 HR9, C/2020 H8, C/2020 H7, 2018 DN1, 2010 EC135, 2005 HN3, 2003 OA3, 2002 SQ, 520862, 399325, 380929, 318050, 285110, 275714, 238456, 237551, 155341, 138847
644NEAT's Mt. Palomar telescope in southern California, 1 in MPEC 2020-K92 -- P/2020 F1
Z80Northolt Branch Obs. in England, 4 in MPEC 2020-K105 -- 2020 JY1, 2013 XA22, 2000 KA, 477885
F51Pan-STARRS 1 (PS1) in Hawaii, 42 in MPECs 2020-K95, 2020-K96, 2020-K97, 2020-K98, 2020-K99, 2020-K101, 2020-K102, 2020-K103, 2020-K105, 2020-K106, 2020-K107 & 2020-K108 -- 2020 KZ1, 2020 KY1, 2020 KM2, 2020 KJ2, 2020 KF2, 2020 KE2, 2020 KC2, 2020 KB2, 2020 KA2, 2020 JZ, 2020 JR, 2020 JL3, 2020 JK3, 2020 HR9, 2020 HG6, C/2020 H7, 2020 GD2, 2019 WB6, 2015 VU142, 2015 TX143, 2007 HX82, 2002 JQ100, 85184, 539856, 538644, 495891, 494880, 438908, 418416, 414903, 399325, 361518, 354952, 351340, 330825, 265196, 249595, 228587, 189058, 162195, 9162, 2101
F52Pan-STARRS 2 (PS2) in Hawaii, 39 in MPECs 2020-K93, 2020-K95, 2020-K96, 2020-K105, 2020-K106, 2020-K107, 2020-K108, 2020-K109, 2020-K110 & 2020-K111 -- 2020 KZ1, 2020 KX1, 2020 KP1, 2020 KN2, 2020 KM2, 2020 KJ2, 2020 KA2, C/2020 K1, 2020 JX, 2020 JP1, 2020 HH3, C/2020 H8, C/2020 H7, 2019 XG1, 2018 GX4, 2017 MU7, 2013 XA22, 2009 QD34, 2006 KQ21, 2004 FF29, 1998 HN3, 66251, 65909, 525498, 510262, 510073, 477885, 471034, 438908, 361518, 210012, 203217, 189973, 164400, 162004, 154589, 11311, 7753, 6050
B49Paus Obs. in Spain, 1 in MPEC 2020-K107 -- C/2020 H7
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 12 in MPEC 2020-K105 -- 2020 JY1, 2020 JD, 2020 FW3, 2018 GX4, 2015 TX143, 2013 XA22, 2013 ON5, 2010 EC135, 2004 FF29, 2002 VR85, 2000 KA, 1998 HN3
6581Dave Balam via Plaskett 1.8m Telescope in British Columbia, 2 in MPECs 2020-K107 & 2020-K110 -- C/2020 H8, C/2020 H7
A48Povegliano Veronese Obs. in Italy, 1 in MPEC 2020-K105 -- 2020 JY1
H36Sandlot Obs. in Kansas, 4 in MPECs 2020-K100, 2020-K103, 2020-K107 & 2020-K110 -- 2020 KF2, 2020 KD2, C/2020 H8, C/2020 H7
C95SATINO-1 in France, 1 in MPEC 2020-K105 -- 3838
204Schiaparelli Obs. in Italy, 2 in MPECs 2020-K100 & 2020-K111 -- 2020 KD2, C/2020 K1
033Schwarzschild Obs. in Germany, 19 in MPECs 2020-K93, 2020-K94, 2020-K95, 2020-K96, 2020-K97, 2020-K100, 2020-K101, 2020-K103, 2020-K105, 2020-K106 & 2020-K109 -- 2020 KZ1, 2020 KY1, 2020 KX1, 2020 KU, 2020 KS, 2020 KQ, 2020 KP1, 2020 KN2, 2020 KJ2, 2020 KJ, 2020 KF2, 2020 KE2, 2020 KD2, 2020 KB2, 2020 KA2, 2020 JY1, 2020 JR1, 2020 JH2, 2020 JG2
645Sloan Digital Sky Survey in New Mexico, 1 in MPEC 2020-K92 -- P/2020 F1
G40,program code "," (21) via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2020-K105 -- 438908
587Sormano Obs. in Italy, 1 in MPEC 2020-K111 -- C/2020 K1
L06Sormano2 Obs. in Italy, 1 in MPEC 2020-K111 -- C/2020 K1
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2020-K92 -- P/2020 F1
I93St. Pardon de Conques Obs. in France, 14 in MPECs 2020-K93, 2020-K94, 2020-K95, 2020-K97, 2020-K100, 2020-K101, 2020-K103, 2020-K105, 2020-K107, 2020-K109, 2020-K110 & 2020-K111 -- 2020 KZ1, 2020 KY1, 2020 KX1, 2020 KW1, 2020 KV1, 2020 KP1, 2020 KN2, 2020 KF2, 2020 KE2, 2020 KD2, 2020 KB2, C/2020 K1, C/2020 H8, C/2020 H7
I52Steward Obs. Mt. Lemmon Station in Arizona, 26 in MPECs 2020-K93, 2020-K95, 2020-K97, 2020-K99, 2020-K100, 2020-K101, 2020-K102, 2020-K103, 2020-K105, 2020-K107, 2020-K109, 2020-K110 & 2020-K111 -- 2020 KZ1, 2020 KZ, 2020 KX1, 2020 KU, 2020 KS, 2020 KN2, 2020 KM1, 2020 KM, 2020 KJ, 2020 KF2, 2020 KE2, 2020 KD2, 2020 KD1, 2020 KB2, C/2020 K1, 2020 JY1, 2020 JX1, 2020 JR1, 2020 JO1, 2020 JL3, 2020 JK3, 2020 JH2, 2020 JE1, C/2020 H8, C/2020 H7, 433992
673!Jana Pittichova Chesley via Table Mtn. Obs. in southern California, 7 in MPECs 2020-K95, 2020-K100, 2020-K101, 2020-K102, 2020-K105, 2020-K107 & 2020-K110 -- 2020 KZ1, 2020 KE2, 2020 KD2, 2020 KB2, 2020 JL3, C/2020 H8, C/2020 H7
858Tebbutt Obs. in New Mexico, 2 in MPECs 2020-K100 & 2020-K110 -- 2020 KD2, C/2020 H8
A16Tentlingen Obs. in Switzerland, 3 in MPEC 2020-K105 -- 2020 HT2, 2020 FW3, 2010 EC135
I76Tesla Obs. in Spain, 1 in MPEC 2020-K105 -- 2000 KA
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-K105 -- 2015 OV
L01Visnjan Obs. in Croatia, 12 in MPECs 2020-K93, 2020-K94, 2020-K95, 2020-K97, 2020-K100, 2020-K101, 2020-K103, 2020-K105, 2020-K107, 2020-K109, 2020-K110 & 2020-K111 -- 2020 KZ1, 2020 KY1, 2020 KX1, 2020 KP1, 2020 KN2, 2020 KF2, 2020 KE2, 2020 KD2, 2020 KB2, C/2020 K1, C/2020 H8, C/2020 H7
C51WISE in Earth polar orbit, 2 in MPEC 2020-K105 -- 2020 JU, 2020 HL7
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 21 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 KM1JPL Sentry20002077-207711.568e-08-6.20-6.200JPL: Computed at 12:24 today Pacific time based on 27 observations spanning 2.9145 days (2020-May-18.23424 to 2020-May-21.1487). Diameter approximately 0.110 km. from weighted mean H=22.45.
NEODyS1700207716.45e-10-7.61-7.610NEODyS: "Based on 27 optical observations (of which 0 are rejected as outliers) from 2020-05-18.235 to 2020-05-21.150."
2020 KD1JPL Sentry20002042-206122.6711e-07-7.69-7.740JPL: Computed at 12:28 today Pacific time based on 38 observations spanning 2.8716 days (2020-May-18.33002 to 2020-May-21.20165). Diameter approximately 0.009 km. from weighted mean H=27.79.
NEODyS17002042-206124.53e-07-7.47-7.50NEODyS: "Based on 38 optical observations (of which 0 are rejected as outliers) from 2020-05-18.331 to 2020-05-21.202."
2020 KWJPL Sentry2000R E M O V E DJPL: Risk listing removed at 1938 UTC today
2020 KUJPL Sentry20002070-2114240.000327369507-5.44-5.760JPL: Computed at 12:35 today Pacific time based on 38 observations spanning 3.8704 days (2020-May-17.330559 to 2020-May-21.20099). Diameter approximately 0.007 km. from weighted mean H=28.48.
NEODyS17002070-2118391.38e-04-5.84-6.080NEODyS: "Based on 39 optical observations (of which 1 are rejected as outliers) from 2020-05-17.331 to 2020-05-21.202."
2020 KSJPL Sentry20002064-2119212.6768637e-05-5.12-5.330JPL: Computed at 12:34 today Pacific time based on 68 observations spanning 4.7059 days (2020-May-16.491732 to 2020-May-21.19765). Diameter approximately 0.025 km. from weighted mean H=25.67.
NEODyS17002055-2118451.05e-05-5.51-5.930NEODyS: "Based on 68 optical observations (of which 2 are rejected as outliers) from 2020-05-16.493 to 2020-05-21.198."

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 21 May '20

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

2358Grabbed MPEC 2020-K108 - 2020 KM2 - see above
Grabbed MPEC 2020-K109 - 2020 KN2 - see above
Grabbed MPEC 2020-K110 - Comet C/2020 H8 (Panstarrs) - see above
Grabbed MPEC 2020-K111 - Comet C/2020 K1 (Panstarrs) - see above
2240Grabbed MPEC 2020-K107 - Comet C/2020 H7 (Lemmon) - see above
2000Noted that JPL Sentry has updated its 2020 KD1 risk assessment - see above
Noted that JPL Sentry has updated its 2020 KM1 risk assessment - see above
Noted that JPL Sentry has updated its 2020 KS risk assessment - see above
Noted that JPL Sentry has updated its 2020 KU risk assessment - see above
Noted that JPL Sentry has removed 2020 KW as an impact risk - see above
1734Grabbed MPEC 2020-K106 - 2020 KJ2 - see above
1700Noted that NEODyS has updated its 2020 KD1 risk assessment - see above
Noted that NEODyS has updated its 2020 KM1 risk assessment - see above
Noted that NEODyS has updated its 2020 KS risk assessment - see above
Noted that NEODyS has updated its 2020 KU risk assessment - see above
Grabbed MPEC 2020-K96 - 2020 KA2 - see above
Grabbed MPEC 2020-K97 - 2020 KB2 - see above
Grabbed MPEC 2020-K98 - 2020 KC2 - see above
Grabbed MPEC 2020-K99 - 2020 JK3 - see above
Grabbed MPEC 2020-K100 - 2020 KD2 - see above
Grabbed MPEC 2020-K101 - 2020 KE2 - see above
Grabbed MPEC 2020-K102 - 2020 JL3 - see above
Grabbed MPEC 2020-K103 - 2020 KF2 - see above
Grabbed MPEC 2020-K104 - 2020 KG2 - see above
Grabbed MPEC 2020-K105 - Daily Orbit Update - see above
0420Grabbed MPEC 2020-K92 - Comet P/2020 F1 = P/2002 E4 (Leonard) - see above
Grabbed MPEC 2020-K93 - 2020 KX1 - see above
Grabbed MPEC 2020-K94 - 2020 KY1 - see above
Grabbed MPEC 2020-K95 - 2020 KZ1 - see above