Contents  on 22 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 22 May '20

The MPC's NEO Confirmation Page has 67 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 67 objects listed. Of these, 42 were "one nighters." So far The Tracking News has counted a total of 102 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 22 May '20

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been 22 MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2020-K133 - "23:15 UT" - 2020 KJ3


MPEC 2020-K132 - "21:30 UT" - 2020 KG3


MPEC 2020-K131 - "20:52 UT" - Comet C/2019 Y4 (ATLAS)


MPEC 2020-K130 - "18:56 UT" - 2020 KF3


MPEC 2020-K129 - "18:53 UT" - 2020 KE3


MPEC 2020-K128 - "18:51 UT" - 2020 KD3


MPEC 2020-K127 - "18:48 UT" - 2020 KC3


MPEC 2020-K126 - "18:43 UT" - 2020 KB3


MPEC 2020-K125 - "18:29 UT" - 2020 KZ2


MPEC 2020-K124 - "17:57 UT" - 2020 KY2


<< DOU on 22 May '20 >>  MPEC 2020-K123 - "12:17 UT" - Daily Orbit Update


MPEC 2020-K122 - "11:57 UT" - 2020 HY10


MPEC 2020-K121 - "06:11 UT" - 2020 KW2


MPEC 2020-K120 - "06:11 UT" - 2020 KV2


MPEC 2020-K119 - "06:08 UT" - 2020 KU2


MPEC 2020-K118 - "06:07 UT" - 2020 KT2


<< OOC on 22 May '20 -- MPEC 2020-K117 - "05:55 UT" - Observations and Orbits of Comets and A/ Objects

Note: There will be a delay until we can manually finish processing this MPEC into our standard summary.


MPEC 2020-K116 - "04:21 UT" - 2020 KS2


MPEC 2020-K115 - "04:19 UT" - 2020 KR2


MPEC 2020-K114 - "02:28 UT" - 2020 KP2


MPEC 2020-K113 - "02:17 UT" - 2020 KO2


MPEC 2020-K112 - "00:39 UT" - 2020 JN3

Observers  on 22 May '20

A total of 159 observers appear in today's MPECs.

CodeObserver / observatory
L2729PREMOTE Obs., 5 in MPEC 2020-K131 -- C/2019 Y4-D, C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
349Ageo Obs. in Japan, 3 in MPEC 2020-K131 -- C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
M43Al Sadeem Obs. in Abu Dhabi, 3 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4
C97Al-Fulaij Obs., 2 in MPEC 2020-K131 -- C/2019 Y4-B, C/2019 Y4-A
Z90Albox Obs. in Spain, 1 in MPEC 2020-K131 -- C/2019 Y4-B
Z11Appledorne Obs., 1 in MPEC 2020-K131 -- C/2019 Y4-B
H21Astronomical Research Obs. Westfield in Illinois, 10 in MPECs 2020-K118, 2020-K119, 2020-K122, 2020-K123, 2020-K124, 2020-K126, 2020-K130 & 2020-K132 -- 2020 KY2, 2020 KU2, 2020 KT2, 2020 KG3, 2020 KF3, 2020 KB3, 2020 HY10, 2020 FW3, 86667, 137199
T05ATLAS Haleakala in Hawaii, 28 in MPECs 2020-K123 & 2020-K131 -- C/2019 Y4, 2013 XA22, 2013 ON5, 2002 VR85, 2000 KA, 85628, 68348, 68278, 66251, 65909, 498066, 495615, 494706, 396730, 354952, 218863, 210012, 190166, 175189, 162470, 152756, 142555, 141053, 136874, 6050, 2102, 1917, 1685
T08ATLAS Mauna Loa in Hawaii, 8 in MPECs 2020-K123 & 2020-K131 -- C/2019 Y4-B, C/2019 Y4, 2011 JX1, 524530, 511523, 184990, 137199, 106589
069Baldone Obs. in Latvia, 4 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
C77Bernezzo Obs. in Italy, 3 in MPEC 2020-K131 -- C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
L54Berthelot Obs., 4 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
C86Blanes Obs. in Spain, 4 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
G20Brignoles Obs., 4 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
B96Brixiis Obs. in Belgium, 4 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
K47BSCR Obs., 2 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4
215Buchloe Obs. in Germany, 3 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4
Z84Calar Alto Schmidt in Spain, 1 in MPEC 2020-K119 -- 2020 KU2
Z36Cancelada Obs., 2 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4
Z46Cardiff Obs., 5 in MPEC 2020-K131 -- C/2019 Y4-D, C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
B20Carmelita Obs. in Spain, 3 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A
I72Carpe Noctem Obs. in Spain, 5 in MPEC 2020-K131 -- C/2019 Y4-D, C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
160Castelmartini Obs. in Italy, 10 in MPECs 2020-K123 & 2020-K131 -- C/2019 Y4, 86667, 85184, 498066, 477885, 190166, 175189, 159929, 138847, 136874
703Catalina Sky Survey (CSS) in Arizona, 33 in MPECs 2020-K123 & 2020-K131 -- 2020 JD, 2020 HF3, C/2019 Y4, 2018 GX4, 2013 XA22, 2013 ON5, 2010 EC135, 2002 VR85, 87311, 85989, 85804, 85628, 68278, 66251, 438908, 414903, 318050, 237551, 210012, 186822, 18172, 175189, 163243, 159929, 145656, 138847, 136874, 103067, 7088, 5626, 4055, 2102, 1917
V06Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) in Arizona, 6 in MPECs 2020-K121, 2020-K122, 2020-K123 & 2020-K126 -- 2020 KW2, 2020 KR2, 2020 KR1, 2020 KO, 2020 KB3, 2020 HY10
K51Celado Obs. in Italy, 4 in MPEC 2020-K131 -- C/2019 Y4-D, C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A
A77Chante-Perdrix Obs. in France, 4 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
970Chelmsford Obs. in England, 5 in MPEC 2020-K131 -- C/2019 Y4-D, C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
Z83Chicharronian 3C Obs. in Spain, 1 in MPEC 2020-K131 -- C/2019 Y4
J01Cielo Profundo Obs. in Spain, 1 in MPEC 2020-K131 -- C/2019 Y4
G10Clavier Obs., 1 in MPEC 2020-K131 -- C/2019 Y4-A
Z99Clixby Obs. in England, 4 in MPEC 2020-K131 -- C/2019 Y4-D, C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4
178Collonges Obs., 2 in MPEC 2020-K131 -- C/2019 Y4-B, C/2019 Y4
L59Compustar Obs., 1 in MPEC 2020-K131 -- C/2019 Y4
850Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2020-K131 -- C/2019 Y4
B50Corner Obs. in Germany, 2 in MPEC 2020-K131 -- C/2019 Y4-B, C/2019 Y4-A
N55Corona Borealis Obs. in Tibet, 1 in MPEC 2020-K131 -- C/2019 Y4-A
Z39Costa Teguise Obs. in the Canary Islands, 5 in MPEC 2020-K131 -- C/2019 Y4-D, C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
P66Deokheung Obs., 2 in MPEC 2020-K131 -- C/2019 Y4-A, C/2019 Y4
K87Dettelbach Vineyard Obs. in Germany, 7 in MPECs 2020-K123 & 2020-K131 -- 2020 KS, 2020 JY1, 2020 JX, C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
Z40El Manzanillo Obs., 2 in MPEC 2020-K131 -- C/2019 Y4-B, C/2019 Y4-A
G22Experimenta Obs., 2 in MPEC 2020-K131 -- C/2019 Y4-B, C/2019 Y4-A
595Farra d'Isonzo Obs. in Italy, 2 in MPECs 2020-K113 & 2020-K131 -- 2020 KO2, C/2019 Y4
F65Faulkes Telescope North in Hawaii, 2 in MPEC 2020-K131 -- C/2019 Y4-D, C/2019 Y4-A
K56Foligno Obs. in Italy, 2 in MPEC 2020-K131 -- C/2019 Y4-A, C/2019 Y4
K83Forti Obs., 3 in MPECs 2020-K123 & 2020-K131 -- C/2019 Y4-B, 2019 XG1, 85628
157Frasso Sabino Obs. in Italy, 1 in MPEC 2020-K131 -- C/2019 Y4
C73Galati Obs. in Romania, 1 in MPEC 2020-K131 -- C/2019 Y4
372Geisei Obs. in Japan, 3 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4
E89Geyserland Obs. in New Zealand, 4 in MPEC 2020-K123 -- 99935, 36183, 141053, 6053
203GiaGa Obs. in Italy, 4 in MPECs 2020-K113, 2020-K123 & 2020-K131 -- 2020 KO2, 2020 KD1, 2020 JY1, C/2019 Y4
K88GINOP-KHK in Hungary, 1 in MPEC 2020-K131 -- C/2019 Y4
Z30Glyn Marsh Obs., 5 in MPEC 2020-K131 -- C/2019 Y4-D, C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
U55Golden Ears Obs., 1 in MPEC 2020-K131 -- C/2019 Y4-B
J77Golden Hill Obs. in England, 4 in MPEC 2020-K131 -- C/2019 Y4-D, C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A
K73Gravina Obs. in Italy, 8 in MPECs 2020-K123 & 2020-K131 -- C/2019 Y4-D, C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4, 85184, 333555, 184990, 137199
J95Great Shefford Obs. in England, 7 in MPECs 2020-K113, 2020-K116, 2020-K127 & 2020-K131 -- 2020 KS2, 2020 KO2, 2020 KC3, C/2019 Y4-D, C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A
449Griffin Hunter Obs., 1 in MPEC 2020-K131 -- C/2019 Y4
458Guadarrama Obs. in Spain, 1 in MPEC 2020-K131 -- C/2019 Y4
A17Guidestar Obs. in Germany, 3 in MPEC 2020-K123 -- 2020 KS, 2020 JY1, 2003 OC3
P87Hirao Obs., 3 in MPEC 2020-K131 -- C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
D88Hiratsuka Obs. in Japan, 1 in MPEC 2020-K131 -- C/2019 Y4
C43Hoyerswerda Obs. in Germany, 2 in MPEC 2020-K131 -- C/2019 Y4-B, C/2019 Y4
U69&program code "&" (15) via iTelescope Obs. Auberry in northern California, 2 in MPEC 2020-K131 -- C/2019 Y4-A, C/2019 Y4
H06iTelescope Obs. Mayhill in New Mexico, 4 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
H06*Rolando Ligustri in Italy via iTelescope Obs. Mayhill in New Mexico, 3 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A
H06>program code ">" (39) via iTelescope Obs. Mayhill in New Mexico, 4 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
H06|Hidetaka Sato in Japan via iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2020-K131 -- C/2019 Y4
I89+program code "+" (20) via iTelescope Obs. Nerpio in Spain, 1 in MPEC 2020-K131 -- C/2019 Y4
I892program code 2 via iTelescope Obs. Nerpio in Spain, 1 in MPEC 2020-K131 -- C/2019 Y4
I89}program code "}" (33) via iTelescope Obs. Nerpio in Spain, 1 in MPEC 2020-K131 -- C/2019 Y4
G19Kant Obs., 2 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4
K85Kelmis Obs., 1 in MPEC 2020-K131 -- C/2019 Y4-A
585Kiev Comet Station in Ukraine, 2 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4
246KLENOT in the Czech Republic, 7 in MPECs 2020-K113, 2020-K123 & 2020-K131 -- 2020 KU, 2020 KO2, 2020 JD, C/2019 Y4-D, C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4
L12Koksijde Obs., 4 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
D95Kurihara Obs. in Japan, 4 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
212La Dehesilla Obs. in Spain, 1 in MPEC 2020-K131 -- C/2019 Y4
J38La Vara Obs. in Spain, 1 in MPEC 2020-K131 -- C/2019 Y4
Z17LCO Tenerife Aqawan A#2 in the Canary Islands, 1 in MPEC 2020-K131 -- C/2019 Y4
938Linhaceira Obs. in Portugal, 4 in MPEC 2020-K131 -- C/2019 Y4-D, C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A
130Lumezzane Obs. in Italy, 1 in MPEC 2020-K131 -- C/2019 Y4
K38M57 Obs. in Italy, 2 in MPEC 2020-K131 -- C/2019 Y4-A, C/2019 Y4
C10Maisoncelles Obs. in France, 5 in MPEC 2020-K131 -- C/2019 Y4-D, C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
232Masquefa Obs. in Spain, 1 in MPEC 2020-K131 -- C/2019 Y4-B
K95MASTER-II Sutherland in South Africa, 1 in MPEC 2020-K123 -- 6569
568^R. Wainscoat on Mauna Kea in Hawaii, 9 in MPECs 2020-K114, 2020-K115, 2020-K121, 2020-K124, 2020-K126, 2020-K127, 2020-K129, 2020-K130 & 2020-K132 -- 2020 KY2, 2020 KW2, 2020 KR2, 2020 KP2, 2020 KG3, 2020 KF3, 2020 KE3, 2020 KC3, 2020 KB3
568_Marco Micheli on Mauna Kea in Hawaii, 1 in MPEC 2020-K131 -- C/2019 Y4
Z50Mazariegos Obs., 1 in MPEC 2020-K131 -- C/2019 Y4
B67Mirasteilas Obs. in Switzerland, 4 in MPEC 2020-K123 -- 2020 JD, 2013 XA22, 2010 EC135, 2002 VR85
118Modra Obs. in Slovakia, 1 in MPEC 2020-K131 -- C/2019 Y4
152Moletai Obs. in Lithuania, 5 in MPEC 2020-K131 -- C/2019 Y4-D, C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
213Montcabre Obs. in Spain, 4 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
B06Montseny Obs. in Spain, 3 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A
G96Mt. Lemmon Survey (MLS) in Arizona, 36 in MPECs 2020-K112, 2020-K116, 2020-K118, 2020-K119, 2020-K120, 2020-K123, 2020-K125, 2020-K128, 2020-K129, 2020-K131 & 2020-K133 -- 2020 KZ2, 2020 KV2, 2020 KU2, 2020 KT2, 2020 KS2, 2020 KQ, 2020 KJ3, 2020 KE3, 2020 KD3, 2020 JN3, 2020 FA3, C/2019 Y4, 2017 GU6, 2013 JX28, 2007 HX82, 2006 GX2, 2005 HN3, 468910, 461912, 459386, 391033, 37655, 368664, 308899, 265196, 242191, 175729, 159635, 159533, 154658, 136874, 103067, 7088, 4581, 1917, 1916
K74Muensterschwarzach Obs. in Germany, 1 in MPEC 2020-K131 -- C/2019 Y4-B
C82Nastro Verde Obs. in Italy, 2 in MPEC 2020-K131 -- C/2019 Y4-B, C/2019 Y4-A
C47Nonndorf Obs. in Austria, 2 in MPEC 2020-K131 -- C/2019 Y4-A, C/2019 Y4
J69North Obs. in England, 1 in MPEC 2020-K131 -- C/2019 Y4-A
Z80Northolt Branch Obs. in England, 7 in MPECs 2020-K123 & 2020-K131 -- 2020 JY1, C/2019 Y4-D, C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4, 498066
G34Oberfrauendorf Obs. in Germany, 4 in MPECs 2020-K123 & 2020-K131 -- 2020 JY1, 2020 FW3, C/2019 Y4-C, C/2019 Y4-B
C23Olmen Obs. in Belgium, 4 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
F51Pan-STARRS 1 (PS1) in Hawaii, 35 in MPECs 2020-K112, 2020-K113, 2020-K115, 2020-K118, 2020-K121, 2020-K122, 2020-K123, 2020-K124, 2020-K125, 2020-K126, 2020-K127, 2020-K130, 2020-K131 & 2020-K132 -- 2020 KZ2, 2020 KY2, 2020 KW2, 2020 KT2, 2020 KR2, 2020 KO2, 2020 KG3, 2020 KF3, 2020 KC3, 2020 KB3, 2020 JX1, 2020 JP2, 2020 JN3, 2020 JJ3, 2020 HY10, 2020 HH10, C/2019 Y4-A, C/2019 Y4, 2016 CC32, 2015 HF9, 2005 UX5, 2002 VR85, 85184, 498550, 495323, 450779, 433992, 349063, 330659, 276891, 267136, 250614, 218863, 5751, 2202
F52Pan-STARRS 2 (PS2) in Hawaii, 36 in MPECs 2020-K114, 2020-K118, 2020-K119, 2020-K121, 2020-K122, 2020-K123, 2020-K124, 2020-K128, 2020-K129, 2020-K132 & 2020-K133 -- 2020 KY2, 2020 KX, 2020 KW2, 2020 KU2, 2020 KT2, 2020 KP2, 2020 KJ3, 2020 KG3, 2020 KG, 2020 KE3, 2020 KE, 2020 KD3, 2020 JU1, 2020 JT, 2020 JO1, 2020 HY10, 2020 HV9, 2020 HU10, 2020 HQ2, 2020 HH2, 2020 HF3, 2020 FW3, 2020 FO2, 2013 ON5, 2007 OY, 2006 MT6, 2006 GX2, 2000 WM107, 495615, 477885, 368949, 363617, 308899, 175729, 152941, 141053
K63Pascoli Obs. in Italy, 2 in MPECs 2020-K113 & 2020-K123 -- 2020 KO2, 137199
K19PASTIS Obs. in France, 2 in MPEC 2020-K131 -- C/2019 Y4-A, C/2019 Y4
B49Paus Obs. in Spain, 1 in MPEC 2020-K131 -- C/2019 Y4
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 5 in MPEC 2020-K131 -- C/2019 Y4-D, C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
122Pises Obs. in France, 7 in MPEC 2020-K123 -- 2010 EC135, 85184, 68350, 425450, 333555, 318050, 115052
658Plaskett 1.8m Telescope in British Columbia, 3 in MPEC 2020-K131 -- C/2019 Y4-D, C/2019 Y4-B, C/2019 Y4-A
6581Dave Balam via Plaskett 1.8m Telescope in British Columbia, 1 in MPEC 2020-K131 -- C/2019 Y4-A
K81PMPHR Obs., 1 in MPEC 2020-K131 -- C/2019 Y4
654Pomona College Table Mtn. Obs. (PCTMO) in southern California, 3 in MPECs 2020-K125, 2020-K127 & 2020-K132 -- 2020 KZ2, 2020 KG3, 2020 KC3
D29Purple Mtn. Obs. Xuyi Station in China, 1 in MPEC 2020-K131 -- C/2019 Y4
L18QOS Obs., 2 in MPEC 2020-K123 -- 2020 JY1, 331471
L04ROASTERR-1 in Romania, 2 in MPEC 2020-K131 -- C/2019 Y4-B, C/2019 Y4
K61Rokycany Obs. in the Czech Republic, 1 in MPEC 2020-K131 -- C/2019 Y4
V83Rolling Hills Obs. in Missouri, 1 in MPEC 2020-K131 -- C/2019 Y4
247roving observer, 1 in MPEC 2020-K131 -- C/2019 Y4
L40Saarbruecken Rastpfuhl Obs., 4 in MPECs 2020-K123 & 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4, 106589
104San Marcello Pistoiese Obs. in Italy, 2 in MPECs 2020-K113 & 2020-K119 -- 2020 KU2, 2020 KO2
233San Vito Obs. in Italy, 5 in MPEC 2020-K131 -- C/2019 Y4-D, C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
H36Sandlot Obs. in Kansas, 2 in MPECs 2020-K113 & 2020-K131 -- 2020 KO2, C/2019 Y4
B70Sant Celoni Obs. in Spain, 4 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
B56Sant Pere Obs. in Spain, 4 in MPEC 2020-K131 -- C/2019 Y4-D, C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A
C95SATINO-1 in France, 2 in MPECs 2020-K123 & 2020-K131 -- C/2019 Y4, 3988
K96Savelli Obs., 1 in MPEC 2020-K131 -- C/2019 Y4
204Schiaparelli Obs. in Italy, 6 in MPECs 2020-K113, 2020-K119 & 2020-K131 -- 2020 KU2, 2020 KO2, C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
K24Schmelz Obs. in Germany, 2 in MPEC 2020-K131 -- C/2019 Y4-D, C/2019 Y4-B
033Schwarzschild Obs. in Germany, 4 in MPECs 2020-K113, 2020-K114, 2020-K116 & 2020-K131 -- 2020 KS2, 2020 KP2, 2020 KO2, C/2019 Y4
K14Sencelles Obs. in Spain, 5 in MPEC 2020-K131 -- C/2019 Y4-D, C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
Q11Shinshiro Obs., 1 in MPEC 2020-K131 -- C/2019 Y4
G40"G. Gasparovic in Croatia via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2020-K131 -- C/2019 Y4
G40*program code "*" (19) via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2020-K131 -- C/2019 Y4
G402program code 2 via Slooh.com Canary Islands Obs. in the Canary Islands, 5 in MPEC 2020-K131 -- C/2019 Y4-D, C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
G409B. Lutkenhoner in Germany via Slooh.com Canary Islands Obs. in the Canary Islands, 2 in MPEC 2020-K131 -- C/2019 Y4-B, C/2019 Y4
587Sormano Obs. in Italy, 2 in MPEC 2020-K131 -- C/2019 Y4-B, C/2019 Y4-A
L06Sormano2 Obs. in Italy, 1 in MPEC 2020-K131 -- C/2019 Y4
Q21Southern Utsunomiya in Japan, 1 in MPEC 2020-K131 -- C/2019 Y4-B
L39Spica Obs., 4 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
W34Squirrel Valley Obs. in North Carolina, 1 in MPEC 2020-K131 -- C/2019 Y4
I93St. Pardon de Conques Obs. in France, 5 in MPECs 2020-K113, 2020-K114, 2020-K118, 2020-K119 & 2020-K125 -- 2020 KZ2, 2020 KU2, 2020 KT2, 2020 KP2, 2020 KO2
K21St. Saturnin les Avignon Obs. in France, 3 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A
C36Starry Wanderer Obs. in Belarus, 3 in MPEC 2020-K131 -- C/2019 Y4-D, C/2019 Y4-C, C/2019 Y4-B
I52Steward Obs. Mt. Lemmon Station in Arizona, 18 in MPECs 2020-K113, 2020-K114, 2020-K116, 2020-K118, 2020-K119, 2020-K120, 2020-K123, 2020-K124, 2020-K125, 2020-K131, 2020-K132 & 2020-K133 -- 2020 KZ2, 2020 KY2, 2020 KV2, 2020 KU2, 2020 KU1, 2020 KU, 2020 KT2, 2020 KS2, 2020 KS, 2020 KP2, 2020 KO2, 2020 KM1, 2020 KJ3, 2020 KJ1, 2020 KG3, 2020 JV2, 2020 JC3, C/2019 Y4
A71Stixendorf Obs. in Austria, 2 in MPEC 2020-K131 -- C/2019 Y4-B, C/2019 Y4
Q23Sukagawa Obs., 3 in MPEC 2020-K131 -- C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
461SZTE Asteroid Program in Hungary, 1 in MPEC 2020-K131 -- C/2019 Y4
673!Jana Pittichova Chesley via Table Mtn. Obs. in southern California, 4 in MPECs 2020-K123, 2020-K124, 2020-K126 & 2020-K127 -- 2020 KY2, 2020 KT2, 2020 KC3, 2020 KB3
J22Tacande Obs. in the Canary Islands, 1 in MPEC 2020-K131 -- C/2019 Y4
I81Tarbatness Obs. in Scotland, 4 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
A98Taurus-1 Obs. in Belarus, 1 in MPEC 2020-K131 -- C/2019 Y4-B
858Tebbutt Obs. in New Mexico, 1 in MPEC 2020-K126 -- 2020 KB3
A16Tentlingen Obs. in Switzerland, 7 in MPECs 2020-K123 & 2020-K131 -- 2020 BO5, C/2019 Y4, 2002 VR85, 85628, 175189, 142555, 136874
C35Terrassa Obs. in Spain, 3 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4
I76Tesla Obs. in Spain, 2 in MPEC 2020-K123 -- 2017 ME, 2000 KA
W33Transit Dreams Obs., 2 in MPEC 2020-K131 -- C/2019 Y4-B, C/2019 Y4-A
V261program code 1 via UAS-ISON Obs., 2 in MPEC 2020-K131 -- C/2019 Y4-D, C/2019 Y4-C
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-K131 -- C/2019 Y4
Z55Uraniborg Obs., 3 in MPEC 2020-K131 -- C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
L01Visnjan Obs. in Croatia, 12 in MPECs 2020-K112, 2020-K113, 2020-K114, 2020-K116, 2020-K118, 2020-K119, 2020-K120, 2020-K125, 2020-K127, 2020-K131, 2020-K132 & 2020-K133 -- 2020 KZ2, 2020 KV2, 2020 KU2, 2020 KT2, 2020 KS2, 2020 KP2, 2020 KO2, 2020 KJ3, 2020 KG3, 2020 KC3, 2020 JN3, C/2019 Y4
G23Vulpecula Obs., 3 in MPEC 2020-K131 -- C/2019 Y4-D, C/2019 Y4-C, C/2019 Y4
G56Walnut Creek Obs. in northern California, 2 in MPEC 2020-K123 -- 2015 FP332, 2010 EC135
Z92West Park Obs. in England, 2 in MPEC 2020-K131 -- C/2019 Y4-B, C/2019 Y4
I15Wishing Star Obs. in Rhode Island, 3 in MPEC 2020-K131 -- C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
C42Xingming Obs. in China, 1 in MPEC 2020-K131 -- C/2019 Y4
N88Xingming Obs. #3, 3 in MPECs 2020-K119, 2020-K131 & 2020-K133 -- 2020 KU2, 2020 KJ3, C/2019 Y4-A
367Yatsuka Obs. in Japan, 1 in MPEC 2020-K131 -- C/2019 Y4
Z57Zuben Obs., 4 in MPEC 2020-K131 -- C/2019 Y4-C, C/2019 Y4-B, C/2019 Y4-A, C/2019 Y4
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 22 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 KE3JPL Sentry21212061-210825.2207e-09-9.05-9.050JPL: Computed at 12:58 today Pacific time based on 11 observations spanning 1.1897 days (2020-May-21.415537 to 2020-May-22.605192). Diameter approximately 0.017 km. from weighted mean H=26.49.
2020 KD3JPL Sentry21212075-21141010.0004101361912-4.39-4.720JPL: Computed at 13:07 today Pacific time based on 14 observations spanning 5.8702 days (2020-May-16.380606 to 2020-May-22.25077). Diameter approximately 0.017 km. from weighted mean H=26.56.
2020 KB3JPL Sentry21212052-205212.226e-07-6.32-6.320JPL: Computed at 12:58 today Pacific time based on 18 observations spanning 1.9408 days (2020-May-20.375682 to 2020-May-22.316446). Diameter approximately 0.043 km. from weighted mean H=24.46.
2020 KN2NEODyS18002063-2118172.4e-05-5.37-5.40NEODyS: "Based on 18 optical observations (of which 0 are rejected as outliers) from 2020-05-20.413 to 2020-05-21.948."
JPL Sentry04302063-2119262.88567058e-05-5.30-5.360JPL: Computed at 17:03 May 21st Pacific time based on 18 observations spanning 1.5349 days (2020-May-20.412007 to 2020-May-21.94692). Diameter approximately 0.018 km. from weighted mean H=26.34.
2020 KM1JPL Sentry18002077-207719.577e-09-6.39-6.390JPL: Computed at 08:19 today Pacific time based on 31 observations spanning 3.9783 days (2020-May-18.23424 to 2020-May-22.2125). Diameter approximately 0.110 km. from weighted mean H=22.39.
NEODyS1800207715.48e-11-8.65-8.650NEODyS: "Based on 31 optical observations (of which 0 are rejected as outliers) from 2020-05-18.235 to 2020-05-22.213."
2020 KD1JPL Sentry18002042-206121.5896e-07-7.92-7.970JPL: Computed at 08:23 today Pacific time based on 42 observations spanning 3.6978 days (2020-May-18.33002 to 2020-May-22.027867). Diameter approximately 0.009 km. from weighted mean H=27.81.
NEODyS18002042-206131.76e-07-7.92-8.010NEODyS: "Based on 42 optical observations (of which 0 are rejected as outliers) from 2020-05-18.331 to 2020-05-22.029."
2020 KUJPL Sentry18002070-2108220.00024918407-5.56-5.850JPL: Computed at 08:10 today Pacific time based on 49 observations spanning 4.9936 days (2020-May-17.330559 to 2020-May-22.32415). Diameter approximately 0.007 km. from weighted mean H=28.49.
NEODyS18002070-2118334.97e-05-6.28-6.510NEODyS: "Based on 50 optical observations (of which 1 are rejected as outliers) from 2020-05-17.331 to 2020-05-22.325."
2020 KSJPL Sentry18002055-2119182.8356449e-05-5.09-5.290JPL: Computed at 08:16 today Pacific time based on 78 observations spanning 5.8059 days (2020-May-16.491732 to 2020-May-22.29768). Diameter approximately 0.025 km. from weighted mean H=25.66.
NEODyS18002055-2117431.28e-05-5.44-5.820NEODyS: "Based on 78 optical observations (of which 2 are rejected as outliers) from 2020-05-16.493 to 2020-05-22.298."
2020 JC3JPL Sentry1800R E M O V E DJPL: Risk listing removed at 1502 UTC today

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 22 May '20

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

2358Grabbed MPEC 2020-K133 - 2020 KJ3 - see above
2236Grabbed MPEC 2020-K132 - 2020 KG3 - see above
2121Noted that JPL Sentry has posted 2020 KB3 as an impact risk - see above
Noted that JPL Sentry has posted 2020 KD3 as an impact risk - see above
Noted that JPL Sentry has posted 2020 KE3 as an impact risk - see above
Grabbed MPEC 2020-K131 - Comet C/2019 Y4 (ATLAS) - see above
1930Grabbed MPEC 2020-K126 - 2020 KB3 - see above
Grabbed MPEC 2020-K127 - 2020 KC3 - see above
Grabbed MPEC 2020-K128 - 2020 KD3 - see above
Grabbed MPEC 2020-K129 - 2020 KE3 - see above
Grabbed MPEC 2020-K130 - 2020 KF3 - see above
1831Grabbed MPEC 2020-K125 - 2020 KZ2 - see above
1800Noted that JPL Sentry has removed 2020 JC3 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 JPL Sentry has updated its 2020 KM1 risk assessment - see above
Noted that NEODyS has updated its 2020 KM1 risk assessment - see above
Noted that NEODyS has posted 2020 KN2 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-K117 - Observations and Orbits of Comets and A/ Objects - see above
Grabbed MPEC 2020-K118 - 2020 KT2 - see above
Grabbed MPEC 2020-K119 - 2020 KU2 - see above
Grabbed MPEC 2020-K120 - 2020 KV2 - see above
Grabbed MPEC 2020-K121 - 2020 KW2 - see above
Grabbed MPEC 2020-K122 - 2020 HY10 - see above
Grabbed MPEC 2020-K123 - Daily Orbit Update - see above
Grabbed MPEC 2020-K124 - 2020 KY2 - see above
0430Noted that JPL Sentry has posted 2020 KN2 as an impact risk - see above
Grabbed MPEC 2020-K112 - 2020 JN3 - see above
Grabbed MPEC 2020-K113 - 2020 KO2 - see above
Grabbed MPEC 2020-K114 - 2020 KP2 - see above
Grabbed MPEC 2020-K115 - 2020 KR2 - see above
Grabbed MPEC 2020-K116 - 2020 KS2 - see above