Contents  on 24 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 24 October '20

The MPC's NEO Confirmation Page has 83 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 83 objects listed. Of these, 37 were "one nighters." So far The Tracking News has counted a total of 98 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 24 October '20

Minor Planet Electronic Circulars

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


MPEC 2020-U215 - "22:24 UT" - 2020 UX4


MPEC 2020-U214 - "19:29 UT" - 2004 US1


MPEC 2020-U213 - "15:00 UT" - 2017 VU13


MPEC 2020-U212 - "13:50 UT" - 2020 UW4


MPEC 2020-U211 - "13:47 UT" - 2020 UV4


MPEC 2020-U210 - "13:46 UT" - 2020 UU4


MPEC 2020-U209 - "13:45 UT" - 2020 UT4


MPEC 2020-U208 - "13:44 UT" - 2020 US4


MPEC 2020-U207 - "13:40 UT" - 2020 UR4


MPEC 2020-U206 - "13:39 UT" - 2020 UQ4


<< DOU on 24 October '20 >>  MPEC 2020-U205 - "12:04 UT" - Daily Orbit Update


MPEC 2020-U204 - "03:20 UT" - 2020 UP4


MPEC 2020-U203 - "03:19 UT" - 2020 UO4


MPEC 2020-U202 - "03:17 UT" - 2020 UN4


MPEC 2020-U201 - "02:42 UT" - 2017 WH1 = 2020 SU2


MPEC 2020-U200 - "01:09 UT" - 2020 UM4

Observers  on 24 October '20

A total of 43 observers appear in today's MPECs.

CodeObserver / observatory
834AAAA Buenos Aires Obs. in Argentina, 1 in MPEC 2020-U205 -- 85275
B37Ametlla del Valles Obs. in Spain, 1 in MPEC 2020-U210 -- 2020 UU4
H21Astronomical Research Obs. Westfield in Illinois, 9 in MPECs 2020-U200, 2020-U204, 2020-U205 & 2020-U212 -- 2020 UW4, 2020 UP4, 2020 UM4, 2020 TZ5, 2020 TT7, 2020 TH4, 2020 TD2, 2020 SS6, 2016 VS5
T05ATLAS Haleakala in Hawaii, 21 in MPECs 2020-U205, 2020-U214 & 2020-U215 -- 2020 UZ3, 2020 UX4, 2020 OC8, 2016 NV38, 2004 US1, 2004 LU3, 2000 TU28, 87684, 86039, 69230, 443837, 20826, 163692, 163014, 15817, 145656, 8566, 6569, 4953, 4055, 887
T08ATLAS Mauna Loa in Hawaii, 36 in MPECs 2020-U205, 2020-U214 & 2020-U215 -- 2020 UX4, 2020 TP3, 2020 TG3, 2020 TD8, 2020 ST1, 2020 QQ6, 2020 OG4, 2020 LA2, 2015 BF4, 2013 UX14, 2008 UU95, 2007 VX137, 2004 US1, 2003 UG22, 53435, 474179, 414903, 380128, 303262, 27031, 241596, 194126, 190208, 185716, 162173, 154302, 154275, 140333, 105140, 9058, 8037, 8014, 6239, 4503, 4450, 2212
160Castelmartini Obs. in Italy, 3 in MPEC 2020-U205 -- 2020 QU6, 163081, 162173
703Catalina Sky Survey (CSS) in Arizona, 23 in MPECs 2020-U200, 2020-U205 & 2020-U215 -- 2020 UX4, 2020 UM4, 2020 UG4, 2020 QM4, 2020 PF7, 2016 ED85, 2014 UR116, 2011 GO27, 2008 UU95, 2007 TG8, 2001 SG286, 90147, 488693, 340666, 253106, 21088, 16834, 163902, 162911, 154302, 144411, 140333, 10115
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 16 in MPECs 2020-U200, 2020-U205 & 2020-U213 -- 2020 UZ3, 2020 UY3, 2020 UV1, 2020 UN3, 2020 UM4, 2020 UL3, 2020 UJ2, 2020 UG2, 2020 TY1, 2020 TU7, 2020 TR5, 2020 TO, 2020 TA7, 2020 QO5, 2020 QF6, 2017 VU13
970Chelmsford Obs. in England, 3 in MPECs 2020-U202, 2020-U203 & 2020-U210 -- 2020 UU4, 2020 UO4, 2020 UN4
Z99Clixby Obs. in England, 5 in MPECs 2020-U200, 2020-U203 & 2020-U205 -- 2020 UO4, 2020 UM4, 2020 UG, 2020 ST1, 2020 SR7
958Dax Obs. in France, 2 in MPECs 2020-U202 & 2020-U203 -- 2020 UO4, 2020 UN4
W84!program code "!" (10) via DECam in Chile, 1 in MPEC 2020-U205 -- 2015 FP332
N31Eden Obs., 2 in MPEC 2020-U205 -- 2020 PD1, 2013 PY6
K88GINOP-KHK in Hungary, 2 in MPEC 2020-U205 -- 489885, 378160
J95Great Shefford Obs. in England, 8 in MPECs 2020-U200, 2020-U202, 2020-U203, 2020-U205, 2020-U208, 2020-U209 & 2020-U210 -- 2020 UU4, 2020 UT4, 2020 US4, 2020 UO4, 2020 UN4, 2020 UM4, 2020 UJ4, 2020 UJ3
C43Hoyerswerda Obs. in Germany, 1 in MPEC 2020-U215 -- 2020 UX4
2461program code 1 via KLENOT in the Czech Republic, 2 in MPEC 2020-U205 -- 2020 TY1, 2020 TK5
C401program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-U205 -- 159402
V39LCO McDonald Obs. B in Texas, 3 in MPEC 2020-U205 -- 2001 SG286, 65717, 418797
V01Mountainville Obs. in Utah, 1 in MPEC 2020-U205 -- 2020 UN1
474Mt. John Obs. in New Zealand, 6 in MPECs 2020-U200 & 2020-U205 -- 2020 UM4, 2020 UM1, 2020 UJ3, 2020 TT5, 2020 TS2, 2020 TK4
G96Mt. Lemmon Survey (MLS) in Arizona, 65 in MPECs 2020-U202, 2020-U203, 2020-U204, 2020-U205, 2020-U206, 2020-U207, 2020-U208, 2020-U209, 2020-U210, 2020-U211 & 2020-U212 -- 2020 UZ, 2020 UW4, 2020 UV4, 2020 UU4, 2020 UT4, 2020 UT2, 2020 US4, 2020 UR4, 2020 UQ4, 2020 UP4, 2020 UO4, 2020 UN4, 2020 UH, 2020 UE1, 2020 UE, 2020 UA2, 2020 UA1, 2020 TU1, 2020 TS5, 2020 TP3, 2020 TM2, 2020 TL6, 2020 TG5, 2020 TC5, 2020 TB6, 2020 SV6, 2020 SU2, 2020 SL, 2020 SH6, 2020 SF3, 2020 RZ9, 2020 RX3, 2020 RA8, 2020 PS5, 2020 KZ5, 2020 HU10, 2018 GV5, 2013 GX68, 2006 SA6, 2005 UV64, 2005 SQ, 2003 UG22, 1998 VD32, 1998 MR24, 89136, 85867, 68372, 496001, 448972, 420302, 392211, 303262, 285331, 27031, 264308, 194126, 190788, 163051, 143404, 141354, 9058, 6239, 4486, 4450, 2212
K74Muensterschwarzach Obs. in Germany, 1 in MPEC 2020-U214 -- 2004 US1
Z80Northolt Branch Obs. in England, 1 in MPEC 2020-U203 -- 2020 UO4
G34Oberfrauendorf Obs. in Germany, 1 in MPEC 2020-U215 -- 2020 UX4
F51Pan-STARRS 1 (PS1) in Hawaii, 26 in MPECs 2020-U205 & 2020-U207 -- 2020 US1, 2020 UR4, 2020 UE4, 2020 TU1, 2020 SW2, 2020 SC1, 2020 OL5, 2015 BF4, 2013 PF10, 2010 RC12, 2007 SR1, 2006 SA6, 537467, 464885, 418416, 395207, 361754, 262623, 198752, 159856, 154302, 152895, 137078, 112221, 5131, 4503
F52Pan-STARRS 2 (PS2) in Hawaii, 26 in MPECs 2020-U205 & 2020-U207 -- 2020 UR4, 2020 UD, 2020 TG4, 2020 TG3, 2020 SV6, 2020 ST1, 2020 SJ7, 2020 SF3, 2020 SC1, 2020 QM4, 2020 OG4, 2017 VT12, 2013 MX5, 2011 UX192, 2010 RC12, 2009 QK2, 2007 UY1, 420302, 414903, 285331, 27031, 163364, 162210, 154302, 141354, 112221
B49Paus Obs. in Spain, 2 in MPECs 2020-U203 & 2020-U205 -- 2020 UQ1, 2020 UO4
D29Purple Mtn. Obs. Xuyi Station in China, 4 in MPEC 2020-U205 -- 2020 UA1, 2018 GX4, 8567, 5645
L18QOS Obs., 1 in MPEC 2020-U205 -- 2013 PY6
L04ROASTERR-1 in Romania, 1 in MPEC 2020-U200 -- 2020 UM4
K61Rokycany Obs. in the Czech Republic, 2 in MPECs 2020-U214 & 2020-U215 -- 2020 UX4, 2004 US1
C95SATINO-1 in France, 2 in MPECs 2020-U205 & 2020-U214 -- 2007 UY1, 2004 US1
W88'program code "'" (16) via Slooh.com Chile Obs. in Chile, 1 in MPEC 2020-U205 -- 2000 TU28
291Spacewatch 1.8m telescope in Arizona, 5 in MPEC 2020-U205 -- 2018 VT6, 2018 VS, 2017 VV1, 2017 SV20, 2010 TP55
W34Squirrel Valley Obs. in North Carolina, 4 in MPECs 2020-U202, 2020-U203, 2020-U205 & 2020-U210 -- 2020 UU4, 2020 UO4, 2020 UN4, 2017 UH5
I52Steward Obs. Mt. Lemmon Station in Arizona, 13 in MPECs 2020-U200, 2020-U202, 2020-U203, 2020-U204, 2020-U205, 2020-U207, 2020-U208, 2020-U209, 2020-U210, 2020-U211 & 2020-U212 -- 2020 UX3, 2020 UW4, 2020 UV4, 2020 UU4, 2020 UT4, 2020 US4, 2020 UR4, 2020 UP4, 2020 UO4, 2020 UN4, 2020 UM4, 2020 TK6, 2020 RX3
858Tebbutt Obs. in New Mexico, 4 in MPECs 2020-U200, 2020-U202, 2020-U205 & 2020-U211 -- 2020 UV4, 2020 UN4, 2020 UM4, 2212
W33Transit Dreams Obs., 7 in MPECs 2020-U200, 2020-U202, 2020-U203, 2020-U205 & 2020-U210 -- 2020 UU4, 2020 UO4, 2020 UN4, 2020 UM4, 2020 QM4, 194126, 154302
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 2 in MPEC 2020-U205 -- 2019 UD8, 2018 AM12
L01Visnjan Obs. in Croatia, 2 in MPECs 2020-U200 & 2020-U211 -- 2020 UV4, 2020 UM4
C51WISE in Earth polar orbit, 4 in MPEC 2020-U205 -- 2013 GY7, 2003 OA3, 513125, 36284
I41Zwicky Transient Facility (ZTF) in southern California, 12 in MPEC 2020-U205 -- 2020 UN3, 2020 RO9, 2020 QQ6, 2019 AQ3, 435404, 415029, 380359, 316695, 31669, 12711, 11398, 5587
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 24 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 UX4JPL Sentry23582074-2120221.31405877e-05-5.39-5.890JPL: Computed at 16:32 today Pacific time based on 27 observations spanning 2.6795 days (2020-Oct-22.18386 to 2020-Oct-24.863311). Diameter approximately 0.027 km. from weighted mean H=25.49.
2020 UT4NEODyS20152045-2119405.45e-05-5.56-5.960NEODyS: "Based on 23 optical observations (of which 0 are rejected as outliers) from 2020-10-23.266 to 2020-10-24.356."
JPL Sentry17002045-2119264.39258377e-05-5.67-6.110JPL: Computed at 08:39 today Pacific time based on 23 observations spanning 1.0904 days (2020-Oct-23.265236 to 2020-Oct-24.355632). Diameter approximately 0.008 km. from weighted mean H=28.18.
2020 UQ4JPL Sentry17002115-211511.065e-10-7.99-7.990JPL: Computed at 08:28 today Pacific time based on 16 observations spanning 13.028 days (2020-Oct-11.30751 to 2020-Oct-24.335169). Diameter approximately 0.320 km. from weighted mean H=20.14.
2020 UO4NEODyS20152103-2120233.18e-05-6.74-6.93n/aNEODyS: "Based on 37 optical observations (of which 1 are rejected as outliers) from 2020-10-23.355 to 2020-10-24.114."
JPL Sentry05002088-2120338.46963572e-05-6.29-6.570JPL: Computed at 21:37 Oct. 23rd Pacific time based on 37 observations spanning .75883 days (2020-Oct-23.354363 to 2020-Oct-24.11319). Diameter approximately 0.006 km. from weighted mean H=28.58.
2020 UC4NEODyS20152090-212079.87e-08-7.98-8.09n/aNEODyS: "Based on 17 optical observations (of which 0 are rejected as outliers) from 2020-10-22.343 to 2020-10-23.469."
2020 UL3NEODyS20152111-2120276.95e-06-4.66-4.92n/aNEODyS: "Based on 29 optical observations (of which 1 are rejected as outliers) from 2020-10-17.537 to 2020-10-23.439."
JPL Sentry17002117-211888.135357e-06-4.59-4.770JPL: Computed at 08:53 today Pacific time based on 29 observations spanning 5.9020 days (2020-Oct-17.535831 to 2020-Oct-23.437852). Diameter approximately 0.076 km. from weighted mean H=23.24.
2020 UYJPL Sentry05002068-2119122.25586e-06-7.83-8.490JPL: Computed at 08:09 Oct. 20th Pacific time based on 21 observations spanning 2.0303 days (2020-Oct-17.283456 to 2020-Oct-19.313708). Diameter approximately 0.005 km. from weighted mean H=28.95.
2020 UJJPL Sentry05002043-204315.266e-09-7.42-7.420JPL: Computed at 10:07 Oct. 22nd Pacific time based on 24 observations spanning 11.796 days (2020-Oct-10.323552 to 2020-Oct-22.119114). Diameter approximately 0.051 km. from weighted mean H=24.11.
2020 UHNEODyS20152098-211958.26e-07-6.14-6.220NEODyS: "Based on 58 optical observations (of which 2 are rejected as outliers) from 2020-10-15.309 to 2020-10-23.199."
JPL Sentry17002098-211946.6076e-07-6.19-6.470JPL: Computed at 08:50 today Pacific time based on 58 observations spanning 7.8899 days (2020-Oct-15.308398 to 2020-Oct-23.198272). Diameter approximately 0.044 km. from weighted mean H=24.45.
2020 UENEODyS20152042-2120482.67e-05-4.83-5.3n/aNEODyS: "Based on 125 optical observations (of which 0 are rejected as outliers) from 2020-10-15.470 to 2020-10-23.402."
JPL Sentry17002042-2118262.3561328e-05-4.87-5.410JPL: Computed at 08:38 today Pacific time based on 125 observations spanning 7.9320 days (2020-Oct-15.46967 to 2020-Oct-23.40168). Diameter approximately 0.026 km. from weighted mean H=25.56.
2020 TD8NEODyS20152045-2096321.6e-05-5.70-5.840NEODyS: "Based on 40 optical observations (of which 1 are rejected as outliers) from 2020-10-15.323 to 2020-10-24.439."
JPL Sentry17002045-2096151.113501e-05-5.84-5.950JPL: Computed at 08:35 today Pacific time based on 40 observations spanning 9.1155 days (2020-Oct-15.322434 to 2020-Oct-24.437886). Diameter approximately 0.013 km. from weighted mean H=27.03.
2020 TK5NEODyS20152039-2061125.62e-06-4.39-4.480NEODyS: "Based on 82 optical observations (of which 0 are rejected as outliers) from 2020-10-14.332 to 2020-10-23.208."
JPL Sentry17002039-205671.013034e-05-3.93-4.070JPL: Computed at 08:49 today Pacific time based on 82 observations spanning 8.8762 days (2020-Oct-14.331481 to 2020-Oct-23.207689). Diameter approximately 0.065 km. from weighted mean H=23.61.
2020 TY1NEODyS20152092-2120122.31e-06-4.71-4.82n/aNEODyS: "Based on 70 optical observations (of which 0 are rejected as outliers) from 2020-10-08.411 to 2020-10-23.260."
JPL Sentry17002092-211345.49181e-07-5.34-5.600JPL: Computed at 08:31 today Pacific time based on 70 observations spanning 14.849 days (2020-Oct-08.410259 to 2020-Oct-23.25909). Diameter approximately 0.100 km. from weighted mean H=22.61.
2017 UL5JPL Sentry05002100-211122.6497e-07-7.56-7.590JPL: Computed at 07:51 Nov. 1st of 2017 Pacific time based on 39 observations spanning 9.0315 days (2017-Oct-22.4618 to 2017-Oct-31.49333). Diameter approximately 0.018 km. from weighted mean H=26.38.
2011 UM169JPL Sentry05002099-2107193.3230941e-05-4.65-4.870JPL: Computed at 05:35 April 9th of 2017 Pacific time based on 40 observations spanning 7.6624 days (2011-Oct-26.463709 to 2011-Nov-03.12613). Diameter approximately 0.033 km. from weighted mean H=25.05.
1997 UA11JPL Sentry05002073-207312.905e-07-6.61-6.610JPL: Computed at 05:58 April 11th of 2017 Pacific time based on 29 observations spanning 12.938 days (1997-Oct-26.28929 to 1997-Nov-08.22721). Diameter approximately 0.032 km. from weighted mean H=25.12.

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 24 October '20

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

2358Noted that JPL Sentry has posted 2020 UX4 as an impact risk - see above
2310Grabbed MPEC 2020-U215 - 2020 UX4 - see above
2015Noted that NEODyS has updated its 2020 TD8 risk assessment - see above
Noted that NEODyS has updated its 2020 TK5 risk assessment - see above
Noted that NEODyS has updated its 2020 TY1 risk assessment - see above
Noted that NEODyS has posted 2020 UC4 as an impact risk - see above
Noted that NEODyS has updated its 2020 UE risk assessment - see above
Noted that NEODyS has updated its 2020 UH risk assessment - see above
Noted that NEODyS has updated its 2020 UL3 risk assessment - see above
Noted that NEODyS has posted 2020 UO4 as an impact risk - see above
Noted that NEODyS has posted 2020 UT4 as an impact risk - see above
2005Grabbed MPEC 2020-U214 - 2004 US1 - see above
1700Noted that JPL Sentry has updated its 2020 TD8 risk assessment - see above
Noted that JPL Sentry has updated its 2020 TK5 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 UE risk assessment - see above
Noted that JPL Sentry has updated its 2020 UH risk assessment - see above
Noted that JPL Sentry has updated its 2020 UL3 risk assessment - see above
Noted that JPL Sentry has posted 2020 UQ4 as an impact risk - see above
Noted that JPL Sentry has posted 2020 UT4 as an impact risk - see above
Grabbed MPEC 2020-U205 - Daily Orbit Update - see above
Grabbed MPEC 2020-U206 - 2020 UQ4 - see above
Grabbed MPEC 2020-U207 - 2020 UR4 - see above
Grabbed MPEC 2020-U208 - 2020 US4 - see above
Grabbed MPEC 2020-U209 - 2020 UT4 - see above
Grabbed MPEC 2020-U210 - 2020 UU4 - see above
Grabbed MPEC 2020-U211 - 2020 UV4 - see above
Grabbed MPEC 2020-U212 - 2020 UW4 - see above
Grabbed MPEC 2020-U213 - 2017 VU13 - see above
0500Noted that JPL Sentry has updated its 1997 UA11 risk assessment - see above
Noted that JPL Sentry has updated its 2011 UM169 risk assessment - see above
Noted that JPL Sentry has updated its 2017 UL5 risk assessment - see above
Noted that JPL Sentry has updated its 2020 UJ risk assessment - see above
Noted that JPL Sentry has posted 2020 UO4 as an impact risk - see above
Noted that JPL Sentry has updated its 2020 UY risk assessment - see above
0405Grabbed MPEC 2020-U200 - 2020 UM4 - see above
Grabbed MPEC 2020-U201 - 2017 WH1 = 2020 SU2 - see above
Grabbed MPEC 2020-U202 - 2020 UN4 - see above
Grabbed MPEC 2020-U203 - 2020 UO4 - see above
Grabbed MPEC 2020-U204 - 2020 UP4 - see above