Contents  on 27 October '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 27 October '20

The MPC's NEO Confirmation Page has 41 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 41 objects listed. Of these, 29 were "one nighters." So far The Tracking News has counted a total of 54 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 27 October '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-U253 - "21:55 UT" - 2020 UM6


MPEC 2020-U252 - "18:30 UT" - Comet P/2020 U2 (Panstarrs)


MPEC 2020-U251 - "15:34 UT" - Comet C/2020 T5 (Lemmon)


MPEC 2020-U250 - "14:31 UT" - 2020 UL6


MPEC 2020-U249 - "14:29 UT" - 2020 UK6


<< DOU on 27 October '20 >>  MPEC 2020-U248 - "12:07 UT" - Daily Orbit Update


MPEC 2020-U247 - "11:50 UT" - 2020 UJ6


MPEC 2020-U246 - "06:31 UT" - 2020 UH6


MPEC 2020-U245 - "06:21 UT" - 2020 UG6


MPEC 2020-U244 - "05:08 UT" - Comet C/2020 S8 (Lemmon)


MPEC 2020-U243 - "04:18 UT" - Comet P/2020 S7 (Panstarrs)


MPEC 2020-U242 - "03:32 UT" - 2020 UF6


MPEC 2020-U241 - "02:08 UT" - Comet C/2014 OG392 (Panstarrs)

Observers  on 27 October '20

A total of 55 observers appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 3 in MPECs 2020-U241, 2020-U244 & 2020-U251 -- C/2020 T5, C/2020 S8, C/2014 OG392
T05ATLAS Haleakala in Hawaii, 10 in MPECs 2020-U248 & 2020-U253 -- 2020 UM6, 2020 QM4, 2005 JT108, 2004 US1, 1998 WA2, 428086, 163902, 159402, 144411, 10115
T08ATLAS Mauna Loa in Hawaii, 14 in MPECs 2020-U241, 2020-U248 & 2020-U253 -- 2020 UX4, 2020 UM6, 2020 TR5, 2020 RV5, 2020 PD1, C/2014 OG392, 68359, 65717, 414903, 414586, 5587, 3753, 1685, 1036
703Catalina Sky Survey (CSS) in Arizona, 3 in MPEC 2020-U248 -- 2020 TM6, 2020 SB6, 2020 SA3
V06Catalina Sky Survey Kuiper Telescope in Arizona, 1 in MPEC 2020-U244 -- C/2020 S8
K51Celado Obs. in Italy, 2 in MPECs 2020-U243 & 2020-U251 -- C/2020 T5, P/2020 S7
807Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2020-U241 -- C/2014 OG392
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 8 in MPECs 2020-U248 & 2020-U253 -- 2020 UW1, 2020 UN3, 2020 UM6, 2020 UM4, 2020 UM3, 2020 UF1, 2020 TY1, 2020 MP
G58Chabot Obs. in northern California, 1 in MPEC 2020-U251 -- C/2020 T5
A77Chante-Perdrix Obs. in France, 1 in MPEC 2020-U251 -- C/2020 T5
970Chelmsford Obs. in England, 1 in MPEC 2020-U253 -- 2020 UM6
Z99Clixby Obs. in England, 6 in MPECs 2020-U248 & 2020-U253 -- 2020 UN1, 2020 UM6, 2020 TY1, 2020 TR5, 2020 TG3, 2020 RV5
W84!program code "!" (10) via DECam in Chile, 7 in MPEC 2020-U248 -- 2020 HB2, 2019 JL5, 2019 GO20, 2013 YB48, 2012 SB22, 2008 UC, 2008 AG1
G37!program code "!" (10) via Discovery Channel Telescope in Arizona, 1 in MPEC 2020-U241 -- C/2014 OG392
G375program code 5 via Discovery Channel Telescope (DCT) in Arizona, 2 in MPEC 2020-U248 -- 2020 SP4, 65803
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2020-U253 -- 2020 UM6
F652Lothar Kurtze in Germany via Faulkes Telescope North in Hawaii, 1 in MPEC 2020-U243 -- P/2020 S7
E10Faulkes Telescope South in New South Wales, 1 in MPEC 2020-U243 -- P/2020 S7
E10*program code "*" (19) via Faulkes Telescope South in New South Wales, 1 in MPEC 2020-U243 -- P/2020 S7
K83Forti Obs., 1 in MPEC 2020-U253 -- 2020 UM6
W46Foxfire Village Obs., 2 in MPEC 2020-U248 -- 2005 JT108, 2004 UR1
X31Galilei Obs., 1 in MPEC 2020-U253 -- 2020 UM6
J95Great Shefford Obs. in England, 9 in MPECs 2020-U242, 2020-U248 & 2020-U253 -- 2020 UX4, 2020 UU4, 2020 UO4, 2020 UM6, 2020 UF6, 2020 UC4, 2020 TR5, 2020 TD8, 2020 TC2
N51GROWTH India Telescope, 2 in MPECs 2020-U251 & 2020-U252 -- P/2020 U2, C/2020 T5
C43Hoyerswerda Obs. in Germany, 1 in MPEC 2020-U253 -- 2020 UM6
221IAS Obs. Hakos in Namibia, 1 in MPEC 2020-U248 -- 2009 PQ1
H06|Hidetaka Sato in Japan via iTelescope Obs. Mayhill in New Mexico, 3 in MPECs 2020-U244, 2020-U251 & 2020-U252 -- P/2020 U2, C/2020 T5, C/2020 S8
Q621Hidetaka Sato in Japan via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-U243 -- P/2020 S7
C401program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-U248 -- 159402
304Las Campanas Obs. in Chile, 1 in MPEC 2020-U241 -- C/2014 OG392
L52MASTER Tavrida, 1 in MPEC 2020-U248 -- 2013 PY6
568Mauna Kea in Hawaii, 1 in MPEC 2020-U248 -- 2018 DL3
568^R. Wainscoat on Mauna Kea in Hawaii, 1 in MPEC 2020-U243 -- P/2020 S7
711McDonald Obs. in Texas, 3 in MPECs 2020-U243, 2020-U244 & 2020-U251 -- C/2020 T5, C/2020 S8, P/2020 S7
V01Mountainville Obs. in Utah, 1 in MPEC 2020-U253 -- 2020 UM6
G96Mt. Lemmon Survey (MLS) in Arizona, 22 in MPECs 2020-U242, 2020-U243, 2020-U244, 2020-U245, 2020-U247, 2020-U248, 2020-U249, 2020-U250, 2020-U251 & 2020-U252 -- 2020 UL6, 2020 UK6, 2020 UJ6, 2020 UG6, 2020 UF6, 2020 UE6, P/2020 U2, 2020 TY, 2020 TQ1, 2020 TM, C/2020 T5, 2020 SP2, 2020 SK2, C/2020 S8, P/2020 S7, 2020 RU7, 2020 RT3, 2020 RJ3, 2019 RY, 2018 GV5, 2014 EY66, 2013 SM20
K74Muensterschwarzach Obs. in Germany, 1 in MPEC 2020-U253 -- 2020 UM6
J69North Obs. in England, 3 in MPECs 2020-U248 & 2020-U253 -- 2020 UM6, 2020 TR5, 2020 TD8
Z80Northolt Branch Obs. in England, 4 in MPECs 2020-U248 & 2020-U253 -- 2020 UM6, 2020 UJ3, 2020 TR5, 2020 TD8
F51Pan-STARRS 1 (PS1) in Hawaii, 30 in MPECs 2020-U241, 2020-U243, 2020-U244, 2020-U246, 2020-U248, 2020-U251 & 2020-U252 -- 2020 UH6, P/2020 U2, 2020 TP3, 2020 TN6, 2020 TG4, C/2020 T5, 2020 SX2, 2020 SV6, 2020 SR7, C/2020 S8, P/2020 S7, 2020 RV3, 2020 RO9, 2020 QM4, 2017 VT12, 2017 ST20, 2017 GO6, 2016 FY14, C/2014 OG392, 2014 EY66, 2012 US9, 2011 BF59, 2009 UM, 2007 TE66, 2007 SR1, 2000 PQ27, 523804, 162210, 112221, 8037
F52Pan-STARRS 2 (PS2) in Hawaii, 31 in MPECs 2020-U241, 2020-U242, 2020-U243, 2020-U244, 2020-U247, 2020-U248 & 2020-U252 -- 2020 UQ2, 2020 UJ6, 2020 UF6, 2020 UF, P/2020 U2, 2020 TG4, 2020 TC1, 2020 SR6, C/2020 S8, P/2020 S7, 2020 QM4, 2020 OG4, 2017 VT12, 2017 GO6, 2016 TL18, 2016 CN246, 2014 WG365, C/2014 OG392, 2014 LQ26, 2014 EY66, 2013 VZ9, 2012 US9, 2010 TU5, 2007 UY1, 2007 TE66, 2007 SR1, 2006 UE17, 2005 SH26, 2002 TS67, 2000 TU28, 10115
B49Paus Obs. in Spain, 5 in MPECs 2020-U242, 2020-U248 & 2020-U253 -- 2020 UN1, 2020 UM6, 2020 UF6, 2020 TR5, 2020 TD8
6581Dave Balam via Plaskett 1.8m Telescope in British Columbia, 1 in MPEC 2020-U251 -- C/2020 T5
D29Purple Mtn. Obs. Xuyi Station in China, 2 in MPECs 2020-U241 & 2020-U243 -- P/2020 S7, C/2014 OG392
L18QOS Obs., 1 in MPEC 2020-U248 -- 159402
L04ROASTERR-1 in Romania, 2 in MPECs 2020-U248 & 2020-U253 -- 2020 UM6, 2004 US1
L07Salvatore di Giacomo Obs., 1 in MPEC 2020-U251 -- C/2020 T5
C95SATINO-1 in France, 1 in MPEC 2020-U248 -- 2008 UU95
204Schiaparelli Obs. in Italy, 28 in MPECs 2020-U248 & 2020-U251 -- 2020 TO2, 2020 TD2, C/2020 T5, 2020 SO, 2020 QE4, 2020 PU1, 2020 PT2, 2020 OX6, 2020 NF, 2020 MZ3, 2020 LR, 2020 LJ2, 2019 NC1, 2017 HN3, 2013 UX14, 2011 UR91, 2008 TY9, 90147, 87311, 85275, 66391, 442037, 280136, 138847, 11405, 8566, 3752, 1865
W88*program code "*" (19) via Slooh.com Chile Obs. in Chile, 1 in MPEC 2020-U248 -- 2020 RV5
Q21Southern Utsunomiya in Japan, 1 in MPEC 2020-U248 -- 162173
291Spacewatch 1.8m telescope in Arizona, 3 in MPEC 2020-U248 -- 2017 QD3, 2012 TC4, 2008 QU3
I52Steward Obs. Mt. Lemmon Station in Arizona, 33 in MPECs 2020-U243, 2020-U244, 2020-U245, 2020-U247, 2020-U248, 2020-U249, 2020-U251 & 2020-U253 -- 2020 UZ5, 2020 UZ, 2020 UX3, 2020 UW1, 2020 UQ2, 2020 UN5, 2020 UN3, 2020 UN1, 2020 UM6, 2020 UM5, 2020 UL3, 2020 UK6, 2020 UJ6, 2020 UG6, 2020 UG4, 2020 UF, 2020 UC5, 2020 UB5, 2020 UB2, 2020 UA3, 2020 TY1, 2020 TU3, 2020 TQ7, 2020 TQ1, 2020 TM4, C/2020 T5, C/2020 S8, P/2020 S7, 2020 RY4, 2020 RX6, 2020 RW2, 2020 RO9, 2020 KU3
A71Stixendorf Obs. in Austria, 1 in MPEC 2020-U243 -- P/2020 S7
858Tebbutt Obs. in New Mexico, 1 in MPEC 2020-U251 -- C/2020 T5
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-U248 -- 2020 RD10
L01Visnjan Obs. in Croatia, 5 in MPECs 2020-U243, 2020-U244, 2020-U251, 2020-U252 & 2020-U253 -- 2020 UM6, P/2020 U2, C/2020 T5, C/2020 S8, P/2020 S7
718Wiggins Obs. in Utah, 1 in MPEC 2020-U253 -- 2020 UM6
C51WISE in Earth polar orbit, 3 in MPEC 2020-U248 -- 2020 UF2, 2013 GY7, 36284
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 27 October '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 UX4NEODyS17302074-2120323.44e-05-5.02-5.34n/aNEODyS: "Based on 40 optical observations (of which 1 are rejected as outliers) from 2020-10-22.185 to 2020-10-26.960."
JPL Sentry17002074-2120172.2902118e-05-5.18-5.560JPL: Computed at 07:59 today Pacific time based on 40 observations spanning 4.7756 days (2020-Oct-22.18386 to 2020-Oct-26.959452). Diameter approximately 0.026 km. from weighted mean H=25.56.
2020 UO4NEODyS17302088-2120591.55e-03-5.02-5.27n/aNEODyS: "Based on 55 optical observations (of which 1 are rejected as outliers) from 2020-10-23.355 to 2020-10-26.906."
JPL Sentry17002088-2120370.0005535292892-5.46-5.620JPL: Computed at 08:14 today Pacific time based on 55 observations spanning 3.5506 days (2020-Oct-23.354363 to 2020-Oct-26.904919). Diameter approximately 0.006 km. from weighted mean H=28.62.
2020 UC4NEODyS17302084-212081.16e-06-6.83-7.22n/aNEODyS: "Based on 28 optical observations (of which 0 are rejected as outliers) from 2020-10-22.343 to 2020-10-27.015."
JPL Sentry17002084-211822.7567e-07-7.32-7.450JPL: Computed at 08:09 today Pacific time based on 28 observations spanning 4.6723 days (2020-Oct-22.341905 to 2020-Oct-27.014234). Diameter approximately 0.021 km. from weighted mean H=26.04.
2020 UL3NEODyS17302111-2120163.45e-06-4.94-5.36n/aNEODyS: "Based on 33 optical observations (of which 1 are rejected as outliers) from 2020-10-17.537 to 2020-10-27.328."
JPL Sentry17002111-211862.26913e-06-5.12-5.390JPL: Computed at 08:01 today Pacific time based on 33 observations spanning 9.7913 days (2020-Oct-17.535831 to 2020-Oct-27.3271). Diameter approximately 0.078 km. from weighted mean H=23.20.
2020 UA3NEODyS1730209318.4e-11-11.26-11.260NEODyS: "Based on 17 optical observations (of which 0 are rejected as outliers) from 2020-10-15.583 to 2020-10-27.276."
2020 TD8NEODyS17302045-2096214.35e-06-6.41-6.760NEODyS: "Based on 73 optical observations (of which 0 are rejected as outliers) from 2020-10-15.323 to 2020-10-27.036."
JPL Sentry17002045-2096133.44688e-06-6.42-6.770JPL: Computed at 08:04 today Pacific time based on 73 observations spanning 11.713 days (2020-Oct-15.322434 to 2020-Oct-27.035254). Diameter approximately 0.014 km. from weighted mean H=26.93.
2020 TO2NEODyS1730211936.37e-06-6.22-6.440NEODyS: "Based on 31 optical observations (of which 2 are rejected as outliers) from 2020-10-10.467 to 2020-10-13.463."
JPL Sentry17002119-211926.156e-06-6.22-6.420JPL: Computed at 07:58 today Pacific time based on 29 observations spanning 2.9960 days (2020-Oct-10.466226 to 2020-Oct-13.462263). Diameter approximately 0.017 km. from weighted mean H=26.53.
2020 TY1NEODyS17302092-212063.31e-07-5.60-5.83n/aNEODyS: "Based on 83 optical observations (of which 0 are rejected as outliers) from 2020-10-08.411 to 2020-10-27.294."
JPL Sentry17002098-211332.3916e-07-5.71-5.980JPL: Computed at 07:57 today Pacific time based on 83 observations spanning 18.883 days (2020-Oct-08.410259 to 2020-Oct-27.293035). Diameter approximately 0.100 km. from weighted mean H=22.63.
2020 RD10NEODyS1730R E M O V E D-
2020 PT2JPL Sentry1700R E M O V E DJPL: Risk listing removed at 1435 UTC today
2020 PU1NEODyS17302047-211782.16e-06-6.49-6.830NEODyS: "Based on 30 optical observations (of which 0 are rejected as outliers) from 2020-08-12.506 to 2020-08-18.110."
JPL Sentry17002047-207031.4894e-06-6.59-6.950JPL: Computed at 07:39 today Pacific time based on 30 observations spanning 5.6038 days (2020-Aug-12.505525 to 2020-Aug-18.10933). Diameter approximately 0.017 km. from weighted mean H=26.49.
2017 UL6JPL Sentry17002058-2106234.703432e-05-7.85-8.370JPL: Computed at 21:11 Oct. 27th of 2017 Pacific time based on 15 observations spanning .77410 days (2017-Oct-27.2341 to 2017-Oct-28.008202). Diameter approximately 0.001 km. from weighted mean H=32.03.
2014 HR197JPL Sentry17002020-21121917.54159e-08-7.08-8.010JPL: Computed at 10:48 April 9th of 2017 Pacific time based on 15 observations spanning .95899 days (2014-Apr-24.15618 to 2014-Apr-25.11517). Diameter approximately 0.014 km. from weighted mean H=26.94.
2011 KF36JPL Sentry17002022-210669.922e-10-5.69-6.090JPL: Computed at 09:46 April 8th of 2017 Pacific time based on 9 observations spanning 2.0159 days (2011-May-30.340411 to 2011-Jun-01.356316). Diameter approximately 0.280 km. from weighted mean H=20.43.
2007 UT3JPL Sentry17002054-211685.073134e-07-6.75-7.120JPL: Computed at 02:12 April 8th of 2017 Pacific time based on 18 observations spanning 4.3683 days (2007-Oct-19.2989 to 2007-Oct-23.66722). Diameter approximately 0.024 km. from weighted mean H=25.72.

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 27 October '20

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

2201Grabbed MPEC 2020-U253 - 2020 UM6 - see above
1905Grabbed MPEC 2020-U252 - Comet P/2020 U2 (Panstarrs) - see above
1730Noted that NEODyS has updated its 2020 PU1 risk assessment - see above
Noted that NEODyS has removed 2020 RD10 as an impact risk - see above
Noted that NEODyS has updated its 2020 TD8 risk assessment - see above
Noted that NEODyS has updated its 2020 TO2 risk assessment - see above
Noted that NEODyS has updated its 2020 TY1 risk assessment - see above
Noted that NEODyS has updated its 2020 UA3 risk assessment - see above
Noted that NEODyS has updated its 2020 UC4 risk assessment - see above
Noted that NEODyS has updated its 2020 UL3 risk assessment - see above
Noted that NEODyS has updated its 2020 UO4 risk assessment - see above
Noted that NEODyS has posted 2020 UX4 as an impact risk - see above
1700Noted that JPL Sentry has updated its 2007 UT3 risk assessment - see above
Noted that JPL Sentry has updated its 2011 KF36 risk assessment - see above
Noted that JPL Sentry has updated its 2014 HR197 risk assessment - see above
Noted that JPL Sentry has updated its 2017 UL6 risk assessment - see above
Noted that JPL Sentry has removed 2020 PT2 as an impact risk - see above
Noted that JPL Sentry has updated its 2020 PU1 risk assessment - see above
Noted that JPL Sentry has updated its 2020 TD8 risk assessment - see above
Noted that JPL Sentry has updated its 2020 TO2 risk assessment - see above
Noted that JPL Sentry has updated its 2020 TY1 risk assessment - see above
Noted that JPL Sentry has updated its 2020 UC4 risk assessment - see above
Noted that JPL Sentry has updated its 2020 UL3 risk assessment - see above
Noted that JPL Sentry has updated its 2020 UO4 risk assessment - see above
Noted that JPL Sentry has updated its 2020 UX4 risk assessment - see above
Grabbed MPEC 2020-U245 - 2020 UG6 - see above
Grabbed MPEC 2020-U246 - 2020 UH6 - see above
Grabbed MPEC 2020-U247 - 2020 UJ6 - see above
Grabbed MPEC 2020-U248 - Daily Orbit Update - see above
Grabbed MPEC 2020-U249 - 2020 UK6 - see above
Grabbed MPEC 2020-U250 - 2020 UL6 - see above
Grabbed MPEC 2020-U251 - Comet C/2020 T5 (Lemmon) - see above
0521Grabbed MPEC 2020-U244 - Comet C/2020 S8 (Lemmon) - see above
0500Grabbed MPEC 2020-U243 - Comet P/2020 S7 (Panstarrs) - see above
0405Grabbed MPEC 2020-U241 - Comet C/2014 OG392 (Panstarrs) - see above
Grabbed MPEC 2020-U242 - 2020 UF6 - see above