Contents  on 26 November '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 26 November '20

The MPC's NEO Confirmation Page has 32 listings

When last checked at 1700 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 32 objects listed. Of these, sixteen were "one nighters." So far The Tracking News has counted a total of 35 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 26 November '20

Minor Planet Electronic Circulars

As of last check at 1700 UTC, there have been six MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2020-W169 - "15:58 UT" - 2020 WY4


MPEC 2020-W168 - "15:55 UT" - 2020 WX4


MPEC 2020-W167 - "15:51 UT" - 2020 WW4


MPEC 2020-W166 - "15:00 UT" - 2019 XD3


MPEC 2020-W165 - "15:00 UT" - 2017 BE29


<< DOU on 26 November '20 >>  MPEC 2020-W164 - "12:08 UT" - Daily Orbit Update

Observers  on 26 November '20

A total of 38 observers appear in today's MPECs.

CodeObserver / observatory
U71AHS Obs., 1 in MPEC 2020-W164 -- 2002 TS67
L74AstroColauri Obs., 1 in MPEC 2020-W164 -- 53435
T05ATLAS Haleakala in Hawaii, 9 in MPEC 2020-W164 -- 506459, 497094, 435404, 241662, 12538, 10150, 8567, 5587, 1036
T08ATLAS Mauna Loa in Hawaii, 8 in MPEC 2020-W164 -- 2018 GX4, 2013 UX14, 2012 SA22, 2002 GZ8, 88188, 53435, 21374, 163902
G17BAS Obs., 2 in MPEC 2020-W164 -- 66272, 65717
703Catalina Sky Survey (CSS) in Arizona, 30 in MPEC 2020-W164 -- 2020 WP4, 2020 WP1, 2020 UZ3, 2020 ST1, 2016 ED85, 2009 WY7, 2009 WD11, 2004 LU3, 90075, 89355, 66272, 474554, 465749, 30825, 283729, 23183, 21088, 162039, 152978, 137052, 137032, 10150, 9172, 8037, 8014, 7753, 5645, 5587, 5131, 1981
V06Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) in Arizona, 2 in MPECs 2020-W167 & 2020-W168 -- 2020 WX4, 2020 WW4
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 36 in MPECs 2020-W164 & 2020-W166 -- 2020 WY, 2020 WX, 2020 WW, 2020 WU2, 2020 WS2, 2020 WP, 2020 WM, 2020 WJ3, 2020 WH1, 2020 WF2, 2020 VZ5, 2020 VZ2, 2020 VY2, 2020 VX2, 2020 VX1, 2020 VT5, 2020 VT, 2020 VQ5, 2020 VN4, 2020 VG3, 2020 VF2, 2020 VD6, 2020 VD1, 2020 VB, 2020 VA1, 2020 UV1, 2020 UT6, 2020 UM4, 2020 UL1, 2020 UG4, 2020 TU7, 2020 TT7, 2020 TF, 2020 TB6, 2020 QO5, 2019 XD3
Z99Clixby Obs. in England, 3 in MPEC 2020-W164 -- 2020 WS4, 2020 WK2, 2009 WG104
W84!program code "!" (10) via DECam in Chile, 2 in MPEC 2020-W164 -- 2020 RQ33, 2013 TV144
J04!program code "!" (10) via ESA Optical Ground Station (ESA OGS) in the Canary Islands, 3 in MPEC 2020-W164 -- 2020 WN, 2020 WA1, 2020 VK6
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2020-W164 -- 2020 WP
K88GINOP-KHK in Hungary, 4 in MPEC 2020-W164 -- 66272, 452307, 378160, 162039
J95Great Shefford Obs. in England, 2 in MPEC 2020-W164 -- 2020 WX2, 2020 SO
240Herrenberg Obs. in Germany, 2 in MPEC 2020-W164 -- 90075, 10115
H06iTelescope Obs. Mayhill in New Mexico, 2 in MPEC 2020-W164 -- 2020 WT2, 7753
2461program code 1 via KLENOT in the Czech Republic, 6 in MPECs 2020-W164 & 2020-W167 -- 2020 WZ2, 2020 WW4, 2020 WP, 2020 WO3, 2020 WC4, 2020 WB2
D35Lulin Minor Bodies Tracking in Taiwan, 1 in MPEC 2020-W164 -- 2020 AV2
130Lumezzane Obs. in Italy, 5 in MPEC 2020-W164 -- 2009 WY7, 2009 WD11, 452307, 450263, 414586
B67Mirasteilas Obs. in Switzerland, 5 in MPEC 2020-W164 -- 2018 GX4, 2017 VT12, 2015 BF4, 2013 UX14, 2002 GZ8
G96Mt. Lemmon Survey (MLS) in Arizona, 36 in MPECs 2020-W164, 2020-W167, 2020-W168 & 2020-W169 -- 2020 WY4, 2020 WX4, 2020 WW4, 2020 WH1, 2020 VZ5, 2020 TG3, 2020 ST1, 2020 RQ33, 2018 KM2, 2017 BP5, 2016 TR54, 2014 LQ26, 2007 FK3, 2003 YS17, 1999 VX15, 55532, 495891, 484402, 474554, 450263, 403039, 373579, 367390, 361532, 355046, 203471, 199145, 152756, 143992, 137032, 136635, 111253, 10150, 9172, 5587, 1943
Z80Northolt Branch Obs. in England, 2 in MPEC 2020-W164 -- 2020 ST1, 2018 XZ1
2615program code 5 using the Palomar Digitized Sky Survey (Palomar DSS) in southern California, 2 in MPEC 2020-W164 -- 9058, 7350
F51Pan-STARRS 1 (PS1) in Hawaii, 15 in MPEC 2020-W164 -- 2020 RQ33, 2020 RO9, 2020 KN3, 2017 BP5, 2011 CN2, 2004 UV1, 2003 JN14, 511520, 420591, 38091, 357621, 174881, 137078, 10150, 8567
F52Pan-STARRS 2 (PS2) in Hawaii, 10 in MPEC 2020-W164 -- 2020 RQ33, 2019 AN5, 98943, 65803, 55532, 523824, 508767, 385343, 247156, 141053
K63Pascoli Obs. in Italy, 1 in MPEC 2020-W164 -- 2020 WR4
W16Pleasant Groves Obs., 1 in MPEC 2020-W164 -- 2015 AC45
C95SATINO-1 in France, 1 in MPEC 2020-W164 -- 4179
Q11Shinshiro Obs., 1 in MPEC 2020-W164 -- 2020 WB2
2605program code 5 using the Siding Spring Digitized Sky Survey (Siding Spring DSS) in New South Wales, 2 in MPEC 2020-W164 -- 8567, 3838
645Sloan Digital Sky Survey in New Mexico, 1 in MPEC 2020-W164 -- 2020 SL1
691Spacewatch 0.9m telescope in Arizona, 12 in MPEC 2020-W164 -- 2020 WZ3, 2020 VZ5, 2020 UZ3, 2020 UE4, 2020 HJ4, 2019 XS, 2017 UP2, 2016 JU33, 2016 EE156, 2010 VA12, 2006 UL185, 2006 LD1
291Spacewatch 1.8m telescope in Arizona, 6 in MPEC 2020-W164 -- 2020 WT2, 2020 WB3, 2020 VK6, 2020 PX1, 2020 OK5, 2017 NK
I52Steward Obs. Mt. Lemmon Station in Arizona, 42 in MPECs 2020-W164, 2020-W167, 2020-W168 & 2020-W169 -- 2020 WZ3, 2020 WZ2, 2020 WY4, 2020 WX4, 2020 WW4, 2020 WU1, 2020 WR1, 2020 WQ3, 2020 WP1, 2020 WO, 2020 WM3, 2020 WM, 2020 WL2, 2020 WL1, 2020 WK3, 2020 WJ1, 2020 WH2, 2020 WG, 2020 WF1, 2020 WE3, 2020 WC3, 2020 WC, 2020 WB3, 2020 WB, 2020 VT, 2020 VP3, 2020 VP, 2020 VO4, 2020 VK6, 2020 VF3, 2020 UZ5, 2020 UZ3, 2020 UR6, 2020 UJ6, 2020 TM4, 2020 TL10, 2020 TG3, 2020 ST1, 2020 RU, 2020 PX1, 2017 XH62, 2016 OP5
858Tebbutt Obs. in New Mexico, 1 in MPEC 2020-W167 -- 2020 WW4
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-W165 -- 2017 BE29
L01Visnjan Obs. in Croatia, 4 in MPECs 2020-W164, 2020-W167, 2020-W168 & 2020-W169 -- 2020 WY4, 2020 WX4, 2020 WW4, 2020 WP1
I41Zwicky Transient Facility (ZTF) in southern California, 13 in MPEC 2020-W164 -- 2020 WB2, 2020 VM3, 2014 WG365, 1998 WA2, 68359, 65717, 467963, 450263, 415029, 39572, 303262, 159402, 3360
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 26 November '20

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS at 1700 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 WT4NEODyS17002062-2119154.96e-06-6.93-7.180NEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2020-11-24.191 to 2020-11-25.909."
JPL Sentry05002062-2119370.0002425537513-5.16-5.170JPL: Computed at 17:26 Nov. 25th Pacific time based on 21 observations spanning 1.7178 days (2020-Nov-24.190527 to 2020-Nov-25.908337). Diameter approximately 0.010 km. from weighted mean H=27.61.
2020 WZ3JPL Sentry17002089-2119152.136786e-05-5.62-5.970JPL: Computed at 06:30 today Pacific time based on 28 observations spanning 2.9629 days (2020-Nov-23.352624 to 2020-Nov-26.31548). Diameter approximately 0.020 km. from weighted mean H=26.13.
2020 WB3JPL Sentry17002024-210322.1366e-08-5.05-5.190JPL: Computed at 06:20 today Pacific time based on 56 observations spanning 5.0181 days (2020-Nov-21.060876 to 2020-Nov-26.07895). Diameter approximately 0.281 km. from weighted mean H=20.38.
NEODyS17002024-210361.72e-08-5.49-6.010NEODyS: "Based on 58 optical observations (of which 2 are rejected as outliers) from 2020-11-21.062 to 2020-11-26.080."
2020 WX2JPL Sentry1700R E M O V E DJPL: Risk listing removed at 1423 UTC today
2020 WA1JPL Sentry17002067-207131.78223e-08-9.27-9.310JPL: Computed at 06:01 today Pacific time based on 37 observations spanning 4.0038 days (2020-Nov-17.331245 to 2020-Nov-21.33509). Diameter approximately 0.006 km. from weighted mean H=28.65.
NEODyS17002051-208282.26e-07-8.05-8.610NEODyS: "Based on 37 optical observations (of which 0 are rejected as outliers) from 2020-11-17.332 to 2020-11-21.336."
2020 VK6JPL Sentry17002090-211149.00696e-06-5.59-5.850JPL: Computed at 06:00 today Pacific time based on 97 observations spanning 13.920 days (2020-Nov-12.475059 to 2020-Nov-26.39488). Diameter approximately 0.026 km. from weighted mean H=25.56.
NEODyS17002090-211137.01e-06-5.72-5.920NEODyS: "Based on 97 optical observations (of which 0 are rejected as outliers) from 2020-11-12.476 to 2020-11-26.396."
2020 VVNEODyS17002033-21206955.36e-03-3.37-3.86n/aNEODyS: "Based on 74 optical observations (of which 1 are rejected as outliers) from 2020-11-05.149 to 2020-11-23.133."
2017 UC52JPL Sentry05002046-2116434.005366e-07-5.90-6.490JPL: Computed at 07:56 Nov. 18th of 2017 Pacific time based on 11 observations spanning 1.0204 days (2017-Oct-28.5087 to 2017-Oct-29.52911). Diameter approximately 0.048 km. from weighted mean H=24.27.
2010 XPJPL Sentry05002021-2116731.449284e-07-7.27-7.760JPL: Computed at 11:10 April 8th of 2017 Pacific time based on 15 observations spanning .11834 days (2010-Dec-02.24919 to 2010-Dec-02.36753). Diameter approximately 0.015 km. from weighted mean H=26.78.

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 26 November '20

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

1700Noted that JPL Sentry has updated its 2020 VK6 risk assessment - see above
Noted that NEODyS has updated its 2020 VK6 risk assessment - see above
Noted that NEODyS has updated its 2020 VV risk assessment - see above
Noted that JPL Sentry has updated its 2020 WA1 risk assessment - see above
Noted that NEODyS has updated its 2020 WA1 risk assessment - see above
Noted that JPL Sentry has updated its 2020 WB3 risk assessment - see above
Noted that NEODyS has updated its 2020 WB3 risk assessment - see above
Noted that NEODyS has posted 2020 WT4 as an impact risk - see above
Noted that JPL Sentry has removed 2020 WX2 as an impact risk - see above
Noted that JPL Sentry has updated its 2020 WZ3 risk assessment - see above
Grabbed MPEC 2020-W164 - Daily Orbit Update - see above
Grabbed MPEC 2020-W165 - 2017 BE29 - see above
Grabbed MPEC 2020-W166 - 2019 XD3 - see above
Grabbed MPEC 2020-W167 - 2020 WW4 - see above
Grabbed MPEC 2020-W168 - 2020 WX4 - see above
Grabbed MPEC 2020-W169 - 2020 WY4 - see above
0500Noted that JPL Sentry has updated its 2010 XP risk assessment - see above
Noted that JPL Sentry has updated its 2017 UC52 risk assessment - see above
Noted that JPL Sentry has posted 2020 WT4 as an impact risk - see above