Contents  on 25 September '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 25 September '20

The MPC's NEO Confirmation Page has 56 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 56 objects listed. Of these, 33 were "one nighters." So far The Tracking News has counted a total of 76 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 25 September '20

Minor Planet Electronic Circulars

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


MPEC 2020-S197 - "18:40 UT" - 2019 YV


<< DOU on 25 September '20 >>  MPEC 2020-S196 - "12:01 UT" - Daily Orbit Update


MPEC 2020-S195 - "11:51 UT" - 2020 SV4


MPEC 2020-S194 - "11:50 UT" - 2020 SU4


MPEC 2020-S193 - "11:49 UT" - 2020 ST4


MPEC 2020-S192 - "11:48 UT" - 2020 SS4


MPEC 2020-S191 - "04:33 UT" - 2020 SR4


MPEC 2020-S190 - "04:32 UT" - 2020 SQ4


MPEC 2020-S189 - "04:31 UT" - 2020 SP4


<< OOC on 25 September '20 -- MPEC 2020-S188 - "02:49 UT" - Observations and Orbits of Comets and A/ Objects


MPEC 2020-S187 - "02:10 UT" - 2020 SO4


MPEC 2020-S186 - "02:08 UT" - 2020 RG10


MPEC 2020-S185 - "02:06 UT" - 2020 SN4

Observers  on 25 September '20

A total of 121 observers appear in today's MPECs.

CodeObserver / observatory
L2729PREMOTE Obs., 8 in MPEC 2020-S188 -- C/2020 K1, C/2020 F3, C/2019 U6, C/2019 O3, C/2018 U1, C/2017 K2, 115P, 29P
349Ageo Obs. in Japan, 21 in MPEC 2020-S188 -- C/2020 Q1, C/2020 P3, C/2020 M3, C/2020 K8, C/2020 F3, C/2019 T3, C/2019 T2, C/2019 O3, C/2019 N1, C/2018 U1, C/2018 F4, C/2018 A6, C/2017 Y2, C/2017 T2, 304P, 257P, 254P, 215P, 88P, 84P, 2P
K40Altdorf Obs. in Germany, 5 in MPEC 2020-S188 -- C/2019 T3, C/2019 L3, C/2017 K2, 115P, 29P
W94AMACS1 in Chile, 2 in MPECs 2020-S192 & 2020-S194 -- 2020 SU4, 2020 SS4
H21Astronomical Research Obs. Westfield in Illinois, 18 in MPECs 2020-S190, 2020-S191, 2020-S193, 2020-S194, 2020-S195 & 2020-S196 -- 2020 SY1, 2020 SX, 2020 SV4, 2020 SU4, 2020 ST4, 2020 SR4, 2020 SQ4, 2020 SO4, 2020 RS2, 2020 RR9, 2020 RR6, 2020 RO3, 2020 RM1, 2020 RB3, 2020 QP5, 2020 QH5, 2020 PJ3, 2013 VQ4
T05ATLAS Haleakala in Hawaii, 37 in MPEC 2020-S188 -- C/2020 S3, C/2020 R4, C/2020 Q1, C/2020 P3, C/2020 M3, C/2020 F3, C/2019 U6, 2019 U5, C/2019 T3, C/2019 T2, C/2019 S4, C/2019 O3, C/2019 L3, C/2019 K7, C/2018 U1, C/2018 N2, C/2018 A6, C/2017 Y2, C/2017 U7, C/2017 T2, C/2017 K2, C/2017 B3, C/2016 M1, P/2013 O2, P/2009 Q4, 312P, 304P, 257P, 254P, 215P, 178P, 156P, 115P, 84P, 29P, 11P, 2P
T08ATLAS Mauna Loa in Hawaii, 39 in MPECs 2020-S188, 2020-S192 & 2020-S194 -- 2020 SU4, 2020 SS4, C/2020 Q1, C/2020 P3, C/2020 M3, C/2020 K1, C/2019 U6, 2019 U5, C/2019 T3, C/2019 T2, C/2019 S4, C/2019 O3, C/2019 L3, C/2019 K7, C/2018 U1, C/2018 A6, C/2017 Y2, C/2017 U7, C/2017 K2, C/2017 B3, C/2016 M1, P/2013 PA104, P/2013 O2, P/2009 Q4, P/2002 T5, 312P, 304P, 257P, 254P, 215P, 178P, 173P, 156P, 115P, 88P, 84P, 29P, 11P, 2P
069Baldone Obs. in Latvia, 1 in MPEC 2020-S188 -- C/2020 Q1
L54Berthelot Obs., 1 in MPEC 2020-S196 -- 2016 NV38
Q68Blue Mountains Obs. in New South Wales, 17 in MPEC 2020-S188 -- C/2020 M3, C/2020 J1, C/2020 F5, C/2019 T2, P/2019 LD2, C/2019 F1, C/2018 F4, C/2018 A6, C/2017 U7, C/2017 B3, 278P, 162P, 156P, 115P, 88P, 28P, 2P
B59Borken Obs. in Germany, 1 in MPEC 2020-S188 -- 29P
G11Breitenweg Obs., 7 in MPEC 2020-S188 -- C/2019 U6, C/2019 L3, C/2019 K7, C/2018 U1, C/2017 K2, 257P, 29P
G20Brignoles Obs., 3 in MPEC 2020-S188 -- C/2019 T2, C/2019 L3, 29P
B96Brixiis Obs. in Belgium, 23 in MPEC 2020-S188 -- C/2020 S3, C/2020 Q1, C/2020 P3, C/2020 N1, C/2019 U6, 2019 U5, C/2019 T3, C/2019 T2, C/2019 O3, P/2019 LD2, C/2019 L3, C/2019 K7, C/2018 U1, C/2018 N2, C/2017 Y2, C/2017 K2, C/2017 B3, C/2016 Q2, P/2009 Q4, 257P, 215P, 29P, 11P
215Buchloe Obs. in Germany, 18 in MPEC 2020-S188 -- C/2020 R2, C/2020 Q2, C/2020 Q1, C/2020 P3, P/2020 O3, C/2020 F3, C/2019 T2, 2019 T1, C/2018 U1, C/2017 U7, C/2017 T2, C/2017 K2, C/2016 Q2, P/2013 PA104, P/2009 Q4, 173P, 58P, 29P
851Burke-Gaffney Obs., 1 in MPEC 2020-S188 -- 29P
Z842E. Schwab via Calar Alto Schmidt in Spain, 1 in MPEC 2020-S188 -- P/2006 H1
W96Campo Catino Austral Obs. in Chile, 1 in MPEC 2020-S188 -- 29P
X74Campo dos Amarais Obs., 2 in MPEC 2020-S188 -- C/2020 F5, 162P
Z46Cardiff Obs., 1 in MPEC 2020-S188 -- C/2019 U6
I72Carpe Noctem Obs. in Spain, 7 in MPEC 2020-S188 -- C/2019 U6, C/2019 O3, C/2019 L3, C/2019 K7, C/2018 U1, C/2018 N2, C/2017 K2
160Castelmartini Obs. in Italy, 14 in MPECs 2020-S188 & 2020-S196 -- P/2020 P2, C/2020 F3, C/2019 U6, C/2019 O3, C/2019 K7, C/2018 U1, C/2017 B3, 2016 NV38, P/2009 Q4, 257P, 115P, 84P, 58P, 29P
703Catalina Sky Survey (CSS) in Arizona, 20 in MPECs 2020-S188 & 2020-S196 -- 2020 RF, 2020 QU6, 2020 LB3, C/2019 U6, C/2019 T2, C/2019 S4, 2019 GQ3, C/2018 U1, C/2018 A6, C/2017 B3, 2016 NV38, 2013 UX14, 2013 TV144, P/2013 O2, 2012 SH32, P/2009 Q4, 2006 HB, 304P, 215P, 84P
V06Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) in Arizona, 18 in MPECs 2020-S193, 2020-S195, 2020-S196 & 2020-S197 -- 2020 SZ1, 2020 SV4, 2020 SV2, 2020 ST4, 2020 RY3, 2020 RW, 2020 RS6, 2020 RP9, 2020 RO6, 2020 RL7, 2020 RH1, 2020 RG6, 2020 RC5, 2020 QX, 2020 QN1, 2020 QC6, 2019 YV, 2012 LZ1
807.Scott Sheppard via Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2020-S188 -- P/2018 V5
A77Chante-Perdrix Obs. in France, 15 in MPEC 2020-S188 -- C/2020 Q2, C/2020 Q1, P/2020 P2, C/2020 M5, C/2020 M3, C/2020 K2, C/2019 Q1, C/2019 O3, C/2019 L3, C/2019 K7, C/2016 Q2, 277P, 249P, 88P, 58P
970Chelmsford Obs. in England, 17 in MPEC 2020-S188 -- C/2020 Q1, C/2020 P3, C/2020 N1, C/2020 M5, C/2019 U6, 2019 U5, C/2019 T3, C/2019 O3, C/2019 L3, C/2019 K7, C/2018 U1, C/2018 N2, C/2017 K2, C/2016 Q2, 257P, 29P, 11P
J01Cielo Profundo Obs. in Spain, 6 in MPEC 2020-S188 -- C/2020 Q1, C/2019 U6, C/2019 L3, C/2019 K7, C/2017 K2, 29P
Z99Clixby Obs. in England, 9 in MPEC 2020-S188 -- C/2019 T3, C/2019 O3, C/2019 L3, C/2019 K7, C/2018 U1, C/2017 Y2, 277P, 257P, 29P
L59Compustar Obs., 5 in MPEC 2020-S188 -- C/2020 M5, C/2019 T3, C/2019 L3, 29P, 8P
850Cordell-Lorenz Obs. in Tennessee, 2 in MPEC 2020-S188 -- C/2020 F3, 29P
B50Corner Obs. in Germany, 7 in MPEC 2020-S188 -- C/2020 F3, C/2019 U6, C/2019 T2, C/2019 K7, C/2017 T2, 257P, 29P
W84!program code "!" (10) via DECam in Chile, 1 in MPEC 2020-S188 -- 78P
W84&program code "&" (15) via DECam in Chile, 2 in MPEC 2020-S188 -- 2019 Q2, 2019 G3
K87Dettelbach Vineyard Obs. in Germany, 12 in MPECs 2020-S188 & 2020-S196 -- 2020 SH2, 2020 RE1, 2020 RE, 2020 QM4, 2020 HP8, C/2019 T3, C/2019 L3, 2013 PY6, 2012 DP8, 2004 RF84, 257P, 29P
G377program code 7 via Discovery Channel Telescope in Arizona, 1 in MPEC 2020-S189 -- 2020 SP4
G06Dordrecht Obs., 3 in MPEC 2020-S188 -- C/2019 T2, C/2019 L3, 29P
N31Eden Obs., 1 in MPEC 2020-S196 -- 2020 PM7
J36El Olivo Obs. in Spain, 1 in MPEC 2020-S188 -- 11P
M42Emirates Obs., 1 in MPEC 2020-S188 -- C/2019 K7
734Farpoint Obs. in Kansas, 1 in MPEC 2020-S191 -- 2020 SR4
595Farra d'Isonzo Obs. in Italy, 2 in MPEC 2020-S188 -- C/2019 T2, C/2018 U1
W46Foxfire Village Obs., 1 in MPEC 2020-S188 -- 257P
I88Fuensanta de Martos Obs. in Spain, 2 in MPEC 2020-S188 -- C/2017 K2, 11P
G26Fushan Obs. in China, 5 in MPEC 2020-S188 -- C/2019 U6, C/2019 K7, C/2018 N2, C/2017 K2, 115P
C73Galati Obs. in Romania, 1 in MPEC 2020-S188 -- C/2017 K2
E89Geyserland Obs. in New Zealand, 3 in MPEC 2020-S188 -- C/2017 B3, 162P, 156P
K88GINOP-KHK in Hungary, 4 in MPECs 2020-S188 & 2020-S196 -- 2020 SN, 2020 PD1, C/2019 U6, 215P
E94Gisborne Obs. in New Zealand, 13 in MPEC 2020-S188 -- C/2020 R4, C/2020 F3, C/2019 T2, C/2019 NJ3, C/2017 U7, 254P, 187P, 186P, 162P, 156P, 115P, 29P, 2P
Z30Glyn Marsh Obs., 6 in MPECs 2020-S188 & 2020-S196 -- 2020 SW, C/2019 K7, C/2018 N2, C/2017 K2, 257P, 29P
J95Great Shefford Obs. in England, 5 in MPECs 2020-S185, 2020-S187, 2020-S190, 2020-S191 & 2020-S196 -- 2020 SR4, 2020 SQ4, 2020 SO4, 2020 SN4, 2020 SH4
P87Hirao Obs., 9 in MPEC 2020-S188 -- C/2020 S3, C/2020 R4, C/2020 Q1, C/2020 M3, C/2019 U6, C/2018 N2, C/2017 K2, 304P, 29P
750Hobbs Obs. in Wisconsin, 1 in MPEC 2020-S188 -- C/2017 K2
H06|Hidetaka Sato in Japan via iTelescope Obs. Mayhill in New Mexico, 10 in MPEC 2020-S188 -- C/2020 Q1, P/2020 O3, C/2020 K8, C/2020 H7, C/2019 Y1, P/2012 SB6, 304P, 249P, 84P, 29P
I89+program code "+" (20) via iTelescope Obs. Nerpio in Spain, 1 in MPEC 2020-S188 -- C/2020 Q1
Q62iTelescope Obs. Siding Spring in New South Wales, 3 in MPEC 2020-S188 -- C/2020 M3, C/2020 J1, 162P
Q621Hidetaka Sato in Japan via iTelescope Obs. Siding Spring in New South Wales, 6 in MPEC 2020-S188 -- C/2020 Q2, C/2020 P1, C/2020 N2, C/2020 M3, C/2019 NJ3, 178P
Q66JAXA Janess-G in New South Wales, 1 in MPEC 2020-S192 -- 2020 SS4
L12Koksijde Obs., 1 in MPEC 2020-S188 -- 29P
Q57Korea Microlensing Telescope Network SSO in New South Wales, 1 in MPEC 2020-S188 -- P/2007 R2
C401program code 1 via Kuban State Univ. Obs. in Russia, 2 in MPECs 2020-S188 & 2020-S196 -- 2020 PM7, 29P
D95Kurihara Obs. in Japan, 5 in MPEC 2020-S188 -- C/2019 U6, C/2019 T2, C/2019 N1, C/2018 N2, C/2017 B3
Z43Landehen Obs., 1 in MPEC 2020-S196 -- 2020 SW
K93LCO Sutherland C in South Africa, 1 in MPEC 2020-S196 -- 2020 RF5
J59Linceo Obs. in Spain, 1 in MPEC 2020-S188 -- C/2019 T2
130Lumezzane Obs. in Italy, 5 in MPEC 2020-S188 -- C/2020 M5, P/2020 K9, C/2019 T2, C/2019 K7, C/2017 B3
H01Magdalena Ridge Obs. (MRO) in New Mexico, 4 in MPECs 2020-S185, 2020-S189, 2020-S191 & 2020-S192 -- 2020 SS4, 2020 SR4, 2020 SP4, 2020 SN4
C10Maisoncelles Obs. in France, 7 in MPEC 2020-S188 -- C/2020 Q1, C/2019 U6, C/2019 T3, C/2017 K2, 29P, 11P, 8P
232Masquefa Obs. in Spain, 5 in MPEC 2020-S188 -- C/2019 U6, C/2019 L3, C/2018 U1, C/2017 K2, 11P
568_Marco Micheli on Mauna Kea in Hawaii, 10 in MPEC 2020-S188 -- C/2020 N1, C/2020 K4, C/2020 K3, C/2020 H7, 2019 U5, C/2019 S4, C/2019 Q1, 2019 O4, 2019 G2, C/2017 K2
152Moletai Obs. in Lithuania, 2 in MPEC 2020-S188 -- C/2020 Q1, C/2020 F3
213Montcabre Obs. in Spain, 3 in MPEC 2020-S188 -- C/2020 Q1, C/2014 E2, 11P
474Mt. John Obs. in New Zealand, 3 in MPECs 2020-S185, 2020-S191 & 2020-S192 -- 2020 SS4, 2020 SR4, 2020 SN4
G96Mt. Lemmon Survey (MLS) in Arizona, 53 in MPECs 2020-S185, 2020-S187, 2020-S188, 2020-S190, 2020-S191, 2020-S193, 2020-S195 & 2020-S196 -- 2020 SV4, 2020 ST4, 2020 SR4, 2020 SQ4, 2020 SQ, 2020 SO4, 2020 SN4, 2020 SK2, 2020 SF, C/2020 S2, 2020 RV3, 2020 RV2, 2020 RS4, P/2020 R5, C/2020 R4, C/2020 R2, 2020 PX3, P/2020 K9, C/2020 K1, C/2020 H8, C/2020 H3, 2020 DB5, 2019 U5, C/2019 T2, 2019 T1, 2019 RE3, C/2019 Q1, C/2018 U1, C/2018 A3, 2017 HN3, 2016 RU, C/2016 Q2, 2016 NV38, 2013 UX14, 2013 TV144, P/2013 O2, 2011 FY2, 2011 BF59, 2010 VA12, P/2009 Q4, 2006 SS19, 2006 HB, 304P, 277P, 257P, 249P, 244P, 215P, 184P, 143P, 110P, 52P, 36P
C53NEOSSat in Earth orbit, 3 in MPEC 2020-S188 -- C/2020 Q1, C/2020 P1, C/2020 F3
C47Nonndorf Obs. in Austria, 7 in MPEC 2020-S188 -- C/2020 Q1, C/2019 U6, C/2019 T3, C/2019 L3, C/2017 K2, 277P, 29P
Z80Northolt Branch Obs. in England, 1 in MPEC 2020-S188 -- 29P
G34Oberfrauendorf Obs. in Germany, 3 in MPEC 2020-S196 -- 2020 SB, 2020 SA3, 2020 PC5
C23Olmen Obs. in Belgium, 26 in MPEC 2020-S188 -- C/2020 Q1, C/2020 P3, C/2020 N1, C/2020 M5, C/2020 F3, C/2019 U6, C/2019 T3, C/2019 T2, P/2019 LD2, C/2019 L3, C/2019 K7, C/2018 U1, C/2018 N2, C/2017 Y2, C/2017 T2, C/2017 K2, C/2017 B3, C/2016 Q2, 277P, 257P, 215P, 173P, 58P, 29P, 11P, 8P
C27Pallerols Obs. in Spain, 1 in MPEC 2020-S188 -- 29P
F51Pan-STARRS 1 (PS1) in Hawaii, 32 in MPECs 2020-S185, 2020-S186, 2020-S188, 2020-S196 & 2020-S197 -- 2020 SN4, 2020 RG10, 2020 RB, C/2020 R2, C/2020 Q2, P/2020 O3, P/2020 O1, P/2020 K9, C/2020 K2, C/2020 K1, 2019 YV, C/2019 T2, C/2019 Q1, C/2017 B3, C/2016 Q2, P/2009 Q4, 376P, 348P, 312P, 277P, 244P, 241P, 215P, 191P, 184P, 110P, 94P, 87P, 81P, 70P, 52P, 11P
F52Pan-STARRS 2 (PS2) in Hawaii, 22 in MPECs 2020-S188 & 2020-S196 -- 2020 RB, C/2020 R4, P/2020 O3, P/2020 K9, C/2019 T2, C/2017 Y2, P/2013 PA104, P/2013 O2, P/2011 R3, P/2009 Q4, P/2007 R2, 257P, 244P, 241P, 215P, 184P, 143P, 110P, 70P, 52P, 36P, 11P
B49Paus Obs. in Spain, 2 in MPECs 2020-S191 & 2020-S196 -- 2020 SR4, 2020 RG
323Perth Obs. in Western Australia, 1 in MPEC 2020-S188 -- C/2020 M3
Z10PGC, 11 in MPEC 2020-S188 -- C/2020 N1, C/2019 U6, C/2019 T3, C/2019 L3, C/2018 U1, C/2018 N2, C/2017 K2, C/2017 B3, 115P, 29P, 11P
V93Pin Oak Obs., 1 in MPEC 2020-S188 -- 257P
W16Pleasant Groves Obs., 1 in MPEC 2020-S188 -- P/2011 U2
D29Purple Mtn. Obs. Xuyi Station in China, 7 in MPECs 2020-S188 & 2020-S196 -- 2020 KZ5, 2019 U5, C/2019 T2, C/2017 B3, C/2016 Q2, 110P, 11P
L04ROASTERR-1 in Romania, 2 in MPEC 2020-S188 -- C/2020 M5, C/2019 U6
619Sabadell Obs. in Spain, 1 in MPEC 2020-S196 -- 2020 SW
X03SADR Obs., 6 in MPEC 2020-S188 -- C/2020 M3, C/2020 J1, C/2020 F3, 162P, 156P, 2P
L07Salvatore di Giacomo Obs., 2 in MPEC 2020-S188 -- C/2020 R2, P/2013 PA104
233San Vito Obs. in Italy, 4 in MPEC 2020-S188 -- C/2019 K7, C/2018 U1, 257P, 115P
H36Sandlot Obs. in Kansas, 5 in MPECs 2020-S188 & 2020-S196 -- 2020 OA2, C/2019 T2, C/2019 Q1, 178P, 11P
B56Sant Pere Obs. in Spain, 2 in MPEC 2020-S188 -- C/2017 K2, 11P
C95SATINO-1 in France, 7 in MPECs 2020-S188 & 2020-S196 -- C/2020 Q1, 2020 NA, C/2019 U6, C/2019 T2, C/2019 K7, C/2018 U1, 257P
204Schiaparelli Obs. in Italy, 15 in MPECs 2020-S188 & 2020-S196 -- 2020 SW, C/2020 F3, C/2019 Q1, C/2019 N1, C/2019 K7, C/2018 U1, C/2017 T2, C/2017 K2, 304P, 257P, 249P, 115P, 88P, 58P, 29P
K14Sencelles Obs. in Spain, 2 in MPEC 2020-S188 -- C/2017 K2, 257P
Q11Shinshiro Obs., 3 in MPEC 2020-S188 -- C/2020 Q1, C/2019 K1, 29P
G40!M. Kumrucu-Lohmiller in Massachusetts via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2020-S188 -- P/2009 Q4
G40-program code "-" (22) via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2020-S188 -- P/2009 Q4
G402program code 2 via Slooh.com Canary Islands Obs. in the Canary Islands, 2 in MPEC 2020-S188 -- C/2020 Q1, 88P
G409B. Lutkenhoner in Germany via Slooh.com Canary Islands Obs. in the Canary Islands, 14 in MPEC 2020-S188 -- C/2020 K8, C/2020 F3, P/2019 LD2, C/2019 L3, C/2018 N2, C/2017 Y2, C/2017 K2, C/2017 B3, C/2010 U3, 304P, 260P, 178P, 88P, 84P
W88%program code "%" (14) via Slooh.com Chile Obs. in Chile, 7 in MPEC 2020-S188 -- C/2020 P1, C/2020 M3, C/2020 F3, P/2009 Q4, 257P, 156P, 88P
W883B. Lutkenhoner in Germany via Slooh.com Chile Obs. in Chile, 6 in MPEC 2020-S188 -- C/2020 O2, C/2020 M3, C/2019 U6, C/2018 F4, C/2017 B3, 162P
W885M. Kumrucu-Lohmiller in Massachusetts via Slooh.com Chile Obs. in Chile, 1 in MPEC 2020-S188 -- C/2020 J1
Y00SONEAR in Brazil, 1 in MPEC 2020-S188 -- 246P
L06Sormano2 Obs. in Italy, 2 in MPEC 2020-S188 -- C/2020 R4, P/2013 PA104
C36Starry Wanderer Obs. in Belarus, 1 in MPEC 2020-S188 -- C/2017 K2
I52Steward Obs. Mt. Lemmon Station in Arizona, 40 in MPECs 2020-S185, 2020-S187, 2020-S188, 2020-S190, 2020-S191, 2020-S192, 2020-S193, 2020-S194, 2020-S195 & 2020-S196 -- 2020 SZ3, 2020 SZ, 2020 SY2, 2020 SW3, 2020 SV4, 2020 SU4, 2020 ST4, 2020 SS4, 2020 SS2, 2020 SR4, 2020 SQ4, 2020 SQ3, 2020 SQ, 2020 SP1, 2020 SO4, 2020 SO2, 2020 SO1, 2020 SN4, 2020 SN, 2020 SM1, 2020 SK3, 2020 SH2, 2020 SF, 2020 SD3, 2020 SB2, 2020 SA, 2020 RV8, 2020 RR8, 2020 RR3, 2020 RQ8, 2020 RL6, 2020 RH7, 2020 RH6, 2020 RG, C/2020 R6, 2020 QS, 2020 QF6, 2020 PB2, 2020 OK7, C/2020 H8
A71Stixendorf Obs. in Austria, 11 in MPEC 2020-S188 -- C/2020 R4, C/2020 R2, C/2020 Q1, P/2020 K9, C/2020 K8, C/2019 T3, C/2019 T2, P/2019 LD2, P/2012 SB6, 304P, 29P
Q23Sukagawa Obs., 3 in MPEC 2020-S188 -- C/2020 Q1, C/2019 U6, 115P
Q38Swan Hill Obs., 5 in MPEC 2020-S188 -- C/2020 P1, C/2020 M3, C/2020 F3, C/2017 T2, 88P
461SZTE Asteroid Program in Hungary, 4 in MPEC 2020-S188 -- C/2020 Q1, C/2019 U6, C/2019 O3, C/2018 U1
I81Tarbatness Obs. in Scotland, 17 in MPEC 2020-S188 -- C/2020 N1, C/2020 M5, C/2019 U6, C/2019 T3, C/2019 L3, C/2019 K7, C/2018 U1, C/2018 N2, C/2017 Y2, C/2017 K2, C/2017 B3, C/2016 Q2, 304P, 277P, 84P, 29P, 8P
A98Taurus-1 Obs. in Belarus, 7 in MPEC 2020-S188 -- C/2020 N1, C/2020 M5, C/2019 T3, C/2019 T2, C/2017 B3, 257P, 29P
Z08Telescope Live, 1 in MPEC 2020-S188 -- P/2013 PA104
C35Terrassa Obs. in Spain, 4 in MPEC 2020-S188 -- C/2019 T3, C/2018 N2, C/2017 K2, 88P
W33Transit Dreams Obs., 1 in MPEC 2020-S188 -- 36P
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-S196 -- 2020 BN10
Z55Uraniborg Obs., 1 in MPEC 2020-S188 -- C/2018 N2
L01Visnjan Obs. in Croatia, 1 in MPEC 2020-S187 -- 2020 SO4
B42Vitebsk Obs. in Belarus, 1 in MPEC 2020-S188 -- C/2019 L3
G23Vulpecula Obs., 3 in MPEC 2020-S188 -- C/2020 Q1, C/2020 F3, C/2019 U6
G33Wickede Obs. in Germany, 2 in MPEC 2020-S188 -- C/2019 K7, 257P
C51WISE in Earth polar orbit, 1 in MPEC 2020-S189 -- 2020 SP4
367Yatsuka Obs. in Japan, 7 in MPEC 2020-S188 -- C/2020 Q1, C/2020 M3, C/2018 U1, C/2018 N2, C/2017 T2, C/2017 K2, 88P
I41Zwicky Transient Facility (ZTF) in southern California, 12 in MPEC 2020-S196 -- 2020 RE, 2020 RA3, 2020 QM4, 2020 PX4, 2020 PD1, 2020 OW3, 2018 TS5, 2017 XL62, 2013 TV144, 2007 VX137, 2006 SS19, 2000 PQ27
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 25 September '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 SU4JPL Sentry16002112-211211.620e-07-6.48-6.480JPL: Computed at 05:59 today Pacific time based on 22 observations spanning 1.8910 days (2020-Sep-23.505989 to 2020-Sep-25.396943). Diameter approximately 0.065 km. from weighted mean H=23.59.
NEODyS1600211227.26e-08-6.82-6.850NEODyS: "Based on 22 optical observations (of which 0 are rejected as outliers) from 2020-09-23.507 to 2020-09-25.398."
2020 SP4NEODyS06332068-211866.44e-08-5.65-5.790NEODyS: "Based on 19 optical observations (of which 0 are rejected as outliers) from 2020-09-20.514 to 2020-09-24.418."
JPL Sentry05372036-2118229.79889e-08-5.35-5.810JPL: Computed at 22:28 Sept. 24th Pacific time based on 19 observations spanning 3.9043 days (2020-Sep-20.51338 to 2020-Sep-24.417664). Diameter approximately 0.152 km. from weighted mean H=21.77.
2020 SO1JPL Sentry16002101-210114.728e-07-7.73-7.730JPL: Computed at 07:20 today Pacific time based on 84 observations spanning 7.9601 days (2020-Sep-17.40029 to 2020-Sep-25.360402). Diameter approximately 0.013 km. from weighted mean H=27.05.
NEODyS16002092-211748.52e-09-9.49-9.540NEODyS: "Based on 85 optical observations (of which 1 are rejected as outliers) from 2020-09-17.401 to 2020-09-25.361."
2020 SQJPL Sentry16002115-211522.1074e-07-8.31-8.580JPL: Computed at 07:27 today Pacific time based on 25 observations spanning 12.794 days (2020-Sep-12.427779 to 2020-Sep-25.222253). Diameter approximately 0.011 km. from weighted mean H=27.46.
NEODyS16002110-211521.58e-07-8.43-8.570NEODyS: "Based on 25 optical observations (of which 0 are rejected as outliers) from 2020-09-12.429 to 2020-09-25.223."
2020 QN1JPL Sentry16002099-211932.7539e-07-6.02-6.140JPL: Computed at 07:08 today Pacific time based on 49 observations spanning 55.815 days (2020-Jul-31.38815 to 2020-Sep-25.202678). Diameter approximately 0.080 km. from weighted mean H=23.14.
NEODyS16002099-211451.94e-07-6.19-6.320NEODyS: "Based on 49 optical observations (of which 0 are rejected as outliers) from 2020-07-31.389 to 2020-09-25.203."
2017 SU17JPL Sentry05372069-2117342.7741307e-05-6.29-6.830JPL: Computed at 08:04 Dec. 26th of 2017 Pacific time based on 34 observations spanning 4.8292 days (2017-Sep-26.44444 to 2017-Oct-01.2736). Diameter approximately 0.008 km. from weighted mean H=28.03.
2017 SS12JPL Sentry05372074-208951.41085e-06-7.06-7.410JPL: Computed at 08:02 Dec. 26th of 2017 Pacific time based on 90 observations spanning 6.9212 days (2017-Sep-25.23585 to 2017-Oct-02.15703). Diameter approximately 0.013 km. from weighted mean H=27.13.
2016 SA2JPL Sentry05372110-2119130.0001346323309-5.83-6.190JPL: Computed at 08:39 Aug. 29th Pacific time based on 63 observations spanning 12.997 days (2016-Sep-26.27345 to 2016-Oct-09.26998). Diameter approximately 0.008 km. from weighted mean H=28.12.
2011 SO189JPL Sentry05372056-2102130.000104444883-4.68-5.040JPL: Computed at 20:01 April 7th of 2017 Pacific time based on 31 observations spanning 6.9160 days (2011-Sep-29.42352 to 2011-Oct-06.339478). Diameter approximately 0.017 km. from weighted mean H=26.49.
2008 TEJPL Sentry05372023-207744.3121017e-05-4.43-4.430JPL: Computed at 14:09 April 9th of 2017 Pacific time based on 34 observations spanning 3.9740 days (2008-Oct-01.24709 to 2008-Oct-05.22111). Diameter approximately 0.010 km. from weighted mean H=27.68.
2008 STJPL Sentry05372047-2116230.0001636363-5.23-5.520JPL: Computed at 06:16 April 15th of 2017 Pacific time based on 49 observations spanning 7.1120 days (2008-Sep-22.16113 to 2008-Sep-29.27316). Diameter approximately 0.013 km. from weighted mean H=27.07.
2006 SR131JPL Sentry05372060-2116302.837357e-05-6.22-6.920JPL: Computed at 22:40 April 8th of 2017 Pacific time based on 63 observations spanning 7.0392 days (2006-Sep-26.36106 to 2006-Oct-03.40021). Diameter approximately 0.009 km. from weighted mean H=27.98.

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 25 September '20

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

1841Grabbed MPEC 2020-S197 - 2019 YV - see above
1600Noted that JPL Sentry has updated its 2020 QN1 risk assessment - see above
Noted that NEODyS has updated its 2020 QN1 risk assessment - see above
Noted that JPL Sentry has updated its 2020 SO1 risk assessment - see above
Noted that NEODyS has updated its 2020 SO1 risk assessment - see above
Noted that JPL Sentry has reposted 2020 SQ as an impact risk - see above
Noted that NEODyS has posted 2020 SQ as an impact risk - see above
Noted that JPL Sentry has posted 2020 SU4 as an impact risk - see above
Noted that NEODyS has posted 2020 SU4 as an impact risk - see above
Grabbed MPEC 2020-S192 - 2020 SS4 - see above
Grabbed MPEC 2020-S193 - 2020 ST4 - see above
Grabbed MPEC 2020-S194 - 2020 SU4 - see above
Grabbed MPEC 2020-S195 - 2020 SV4 - see above
Grabbed MPEC 2020-S196 - Daily Orbit Update - see above
0633Noted that NEODyS has posted 2020 SP4 as an impact risk - see above
0537Noted that JPL Sentry has updated its 2006 SR131 risk assessment - see above
Noted that JPL Sentry has updated its 2008 ST risk assessment - see above
Noted that JPL Sentry has updated its 2008 TE risk assessment - see above
Noted that JPL Sentry has updated its 2011 SO189 risk assessment - see above
Noted that JPL Sentry has updated its 2016 SA2 risk assessment - see above
Noted that JPL Sentry has updated its 2017 SS12 risk assessment - see above
Noted that JPL Sentry has updated its 2017 SU17 risk assessment - see above
Noted that JPL Sentry has posted 2020 SP4 as an impact risk - see above
0500Grabbed MPEC 2020-S189 - 2020 SP4 - see above
Grabbed MPEC 2020-S190 - 2020 SQ4 - see above
Grabbed MPEC 2020-S191 - 2020 SR4 - see above
0410Grabbed MPEC 2020-S185 - 2020 SN4 - see above
Grabbed MPEC 2020-S186 - 2020 RG10 - see above
Grabbed MPEC 2020-S187 - 2020 SO4 - see above
Grabbed MPEC 2020-S188 - Observations and Orbits of Comets and A/ Objects - see above