Contents  on 27 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 27 November '20

The MPC's NEO Confirmation Page has 26 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 26 objects listed. Of these, sixteen were "one nighters." So far The Tracking News has counted a total of 39 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 November '20

Minor Planet Electronic Circulars

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


MPEC 2020-W179 - "19:46 UT" - Comet P/2020 V4 (Rankin)


MPEC 2020-W178 - "18:17 UT" - Comet P/2020 V3 (Panstarrs)


MPEC 2020-W177 - "18:05 UT" - Comet C/2020 V2 (ZTF)


MPEC 2020-W176 - "14:51 UT" - 2020 WC5


<< DOU on 27 November '20 >>  MPEC 2020-W175 - "12:09 UT" - Daily Orbit Update


MPEC 2020-W174 - "08:30 UT" - 2007 AC12


MPEC 2020-W173 - "06:36 UT" - 2020 WB5


MPEC 2020-W172 - "06:33 UT" - 2020 WA5


MPEC 2020-W171 - "06:32 UT" - 2020 WZ4


MPEC 2020-W170 - "02:43 UT" - Comet P/2020 W1 (Rankin)

Observers  on 27 November '20

A total of 59 observers appear in today's MPECs.

CodeObserver / observatory
L74AstroColauri Obs., 1 in MPEC 2020-W172 -- 2020 WA5
T05ATLAS Haleakala in Hawaii, 18 in MPEC 2020-W175 -- 2020 UZ3, 2020 SE4, 2013 UX14, 2002 TS67, 89355, 66272, 513125, 465749, 283729, 241596, 21088, 190208, 162186, 162039, 8567, 5836, 2368, 1580
T08ATLAS Mauna Loa in Hawaii, 6 in MPECs 2020-W172 & 2020-W175 -- 2020 WA5, 2003 YJ, 4953, 4055, 1036, 887
Q68Blue Mountains Obs. in New South Wales, 6 in MPEC 2020-W175 -- 85275, 68359, 65717, 185716, 5587, 4055
215Buchloe Obs. in Germany, 3 in MPECs 2020-W177, 2020-W178 & 2020-W179 -- P/2020 V4, P/2020 V3, C/2020 V2
703Catalina Sky Survey (CSS) in Arizona, 26 in MPECs 2020-W171 & 2020-W175 -- 2020 WZ4, 2020 QA7, 2017 VT12, 2016 EL84, 2007 TG8, 2002 GZ8, 88188, 85709, 53435, 482505, 474179, 428086, 415029, 382395, 380359, 354663, 340666, 315098, 305090, 21374, 163902, 159402, 154330, 3691, 1685, 433
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2020-W175 -- 2020 SO
A77Chante-Perdrix Obs. in France, 1 in MPEC 2020-W177 -- C/2020 V2
Z99Clixby Obs. in England, 4 in MPECs 2020-W171, 2020-W172, 2020-W175 & 2020-W179 -- 2020 WZ4, 2020 WW3, 2020 WA5, P/2020 V4
113Drebach Obs. in Germany, 1 in MPEC 2020-W172 -- 2020 WA5
J04!program code "!" (10) via ESA Optical Ground Station in the Canary Islands, 1 in MPEC 2020-W175 -- 2020 OK6
J042program code 2 via ESA Optical Ground Station (ESA OGS) in the Canary Islands, 2 in MPECs 2020-W170 & 2020-W177 -- P/2020 W1, C/2020 V2
595Farra d'Isonzo Obs. in Italy, 3 in MPECs 2020-W171, 2020-W172 & 2020-W179 -- 2020 WZ4, 2020 WA5, P/2020 V4
203GiaGa Obs. in Italy, 3 in MPECs 2020-W171, 2020-W172 & 2020-W179 -- 2020 WZ4, 2020 WA5, P/2020 V4
K88GINOP-KHK in Hungary, 2 in MPECs 2020-W172 & 2020-W177 -- 2020 WA5, C/2020 V2
E94Gisborne Obs. in New Zealand, 1 in MPEC 2020-W178 -- P/2020 V3
J95Great Shefford Obs. in England, 2 in MPECs 2020-W172 & 2020-W175 -- 2020 WX2, 2020 WA5
N51GROWTH India Telescope, 4 in MPECs 2020-W170, 2020-W177, 2020-W178 & 2020-W179 -- P/2020 W1, P/2020 V4, P/2020 V3, C/2020 V2
240Herrenberg Obs. in Germany, 1 in MPEC 2020-W175 -- 163014
H06iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2020-W177 -- C/2020 V2
H06|Hidetaka Sato in Japan via iTelescope Obs. Mayhill in New Mexico, 3 in MPECs 2020-W170, 2020-W177 & 2020-W178 -- P/2020 W1, P/2020 V3, C/2020 V2
I89=program code "=" (38) via iTelescope Obs. Nerpio in Spain, 2 in MPECs 2020-W177 & 2020-W179 -- P/2020 V4, C/2020 V2
Q621Hidetaka Sato in Japan via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-W179 -- P/2020 V4
2461program code 1 via KLENOT in the Czech Republic, 5 in MPECs 2020-W170, 2020-W171, 2020-W172, 2020-W178 & 2020-W179 -- 2020 WZ4, 2020 WA5, P/2020 W1, P/2020 V4, P/2020 V3
C401program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-W175 -- 159402
D35Lulin Minor Bodies Tracking in Taiwan, 1 in MPEC 2020-W175 -- 2020 AV2
K38M57 Obs. in Italy, 2 in MPECs 2020-W171 & 2020-W172 -- 2020 WZ4, 2020 WA5
W92MASTER OAFA Obs., 1 in MPEC 2020-W175 -- 8567
568^R. Wainscoat on Mauna Kea in Hawaii, 1 in MPEC 2020-W178 -- P/2020 V3
711McDonald Obs. in Texas, 3 in MPECs 2020-W170, 2020-W178 & 2020-W179 -- P/2020 W1, P/2020 V4, P/2020 V3
G96Mt. Lemmon Survey (MLS) in Arizona, 26 in MPECs 2020-W170, 2020-W171, 2020-W174, 2020-W175, 2020-W176, 2020-W177, 2020-W178 & 2020-W179 -- 2020 WZ4, 2020 WC5, P/2020 W1, P/2020 V4, P/2020 V3, C/2020 V2, 2007 AC12, 90075, 506779, 506459, 497094, 489486, 274138, 255071, 216707, 202411, 190166, 163014, 162900, 142464, 141498, 140928, 5863, 4947, 3908, 3691
675@program code "@" (41) via Mt. Palomar in southern California, 1 in MPEC 2020-W177 -- C/2020 V2
C51NEOWISE in Earth polar orbit, 1 in MPEC 2020-W173 -- 2020 WB5
Z80Northolt Branch Obs. in England, 1 in MPEC 2020-W175 -- 2020 TG4
F51Pan-STARRS 1 (PS1) in Hawaii, 13 in MPECs 2020-W170, 2020-W174, 2020-W175, 2020-W176, 2020-W178 & 2020-W179 -- 2020 WM1, 2020 WC5, P/2020 W1, P/2020 V4, P/2020 V3, 2020 TM4, 2020 RU, 2015 XJ261, 2015 AS45, 2007 AC12, 274138, 202411, 154330
F52Pan-STARRS 2 (PS2) in Hawaii, 10 in MPECs 2020-W170, 2020-W175 & 2020-W179 -- P/2020 W1, 2020 VV, P/2020 V4, 2017 AF5, 2009 ST19, 517103, 415029, 22771, 171819, 162004
K63Pascoli Obs. in Italy, 1 in MPEC 2020-W172 -- 2020 WA5
B49Paus Obs. in Spain, 1 in MPEC 2020-W179 -- P/2020 V4
654Pomona College Table Mtn. Obs. (PCTMO) in southern California, 2 in MPEC 2020-W175 -- 2020 UF7, 2020 SO
D29Purple Mtn. Obs. Xuyi Station in China, 1 in MPEC 2020-W179 -- P/2020 V4
L18QOS Obs., 5 in MPEC 2020-W175 -- 2017 WJ16, 2002 GZ8, 66272, 482505, 7753
L04ROASTERR-1 in Romania, 1 in MPEC 2020-W177 -- C/2020 V2
K61Rokycany Obs. in the Czech Republic, 2 in MPECs 2020-W178 & 2020-W179 -- P/2020 V4, P/2020 V3
L07Salvatore di Giacomo Obs., 2 in MPECs 2020-W172 & 2020-W177 -- 2020 WA5, C/2020 V2
C95SATINO-1 in France, 1 in MPEC 2020-W175 -- 4197
204Schiaparelli Obs. in Italy, 5 in MPECs 2020-W170, 2020-W171, 2020-W172, 2020-W177 & 2020-W179 -- 2020 WZ4, 2020 WA5, P/2020 W1, P/2020 V4, C/2020 V2
Q11Shinshiro Obs., 2 in MPECs 2020-W177 & 2020-W179 -- P/2020 V4, C/2020 V2
G402program code 2 via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2020-W179 -- P/2020 V4
G409B. Lutkenhoner in Germany via Slooh.com Canary Islands Obs. in the Canary Islands, 2 in MPECs 2020-W177 & 2020-W179 -- P/2020 V4, C/2020 V2
587Sormano Obs. in Italy, 1 in MPEC 2020-W178 -- P/2020 V3
L06Sormano2 Obs. in Italy, 2 in MPECs 2020-W177 & 2020-W179 -- P/2020 V4, C/2020 V2
Q21Southern Utsunomiya in Japan, 2 in MPECs 2020-W175 & 2020-W179 -- P/2020 V4, 162173
691Spacewatch 0.9m telescope in Arizona, 6 in MPECs 2020-W170, 2020-W171, 2020-W175, 2020-W176, 2020-W177 & 2020-W178 -- 2020 WZ4, 2020 WC5, P/2020 W1, 2020 VZ5, P/2020 V3, C/2020 V2
291Spacewatch 1.8m telescope in Arizona, 2 in MPECs 2020-W173 & 2020-W176 -- 2020 WC5, 2020 WB5
I52Steward Obs. Mt. Lemmon Station in Arizona, 33 in MPECs 2020-W170, 2020-W171, 2020-W172, 2020-W174, 2020-W175, 2020-W176, 2020-W178 & 2020-W179 -- 2020 WZ4, 2020 WZ3, 2020 WZ2, 2020 WW3, 2020 WT2, 2020 WP1, 2020 WJ3, 2020 WH2, 2020 WH1, 2020 WG, 2020 WE1, 2020 WC5, 2020 WC4, 2020 WC3, 2020 WB4, 2020 WB3, 2020 WB2, 2020 WA5, 2020 WA3, P/2020 W1, 2020 VZ5, 2020 VO3, 2020 VM1, 2020 VE2, P/2020 V4, P/2020 V3, 2020 UR6, 2020 TZ1, 2020 TC7, 2020 SO, 2020 SK1, 2007 US12, 2007 AC12
A71Stixendorf Obs. in Austria, 2 in MPECs 2020-W177 & 2020-W179 -- P/2020 V4, C/2020 V2
J22Tacande Obs. in the Canary Islands, 1 in MPEC 2020-W177 -- C/2020 V2
858Tebbutt Obs. in New Mexico, 4 in MPECs 2020-W171, 2020-W172, 2020-W177 & 2020-W179 -- 2020 WZ4, 2020 WA5, P/2020 V4, C/2020 V2
Z08Telescope Live, 2 in MPECs 2020-W177 & 2020-W179 -- P/2020 V4, C/2020 V2
K62Teplice Obs. in the Czech Republic, 1 in MPEC 2020-W179 -- P/2020 V4
L01Visnjan Obs. in Croatia, 7 in MPECs 2020-W170, 2020-W171, 2020-W172, 2020-W176, 2020-W177, 2020-W178 & 2020-W179 -- 2020 WZ4, 2020 WC5, 2020 WA5, P/2020 W1, P/2020 V4, P/2020 V3, C/2020 V2
I41Zwicky Transient Facility (ZTF) in southern California, 8 in MPECs 2020-W175 & 2020-W177 -- C/2020 V2, 2020 QA7, 2017 VT12, 2013 UX14, 1999 HV1, 452307, 352143, 5836
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 27 November '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 WZ3JPL Sentry18002089-2119141.6867213e-05-5.75-6.130JPL: Computed at 06:08 today Pacific time based on 30 observations spanning 3.8721 days (2020-Nov-23.352624 to 2020-Nov-27.224738). Diameter approximately 0.020 km. from weighted mean H=26.18.
NEODyS18002096-2120261.39e-05-5.84-6.23n/aNEODyS: "Based on 30 optical observations (of which 0 are rejected as outliers) from 2020-11-23.353 to 2020-11-27.226."
2020 WB3JPL Sentry18002024-202411.121e-10-6.51-6.510JPL: Computed at 05:59 today Pacific time based on 59 observations spanning 5.9914 days (2020-Nov-21.060876 to 2020-Nov-27.0523). Diameter approximately 0.290 km. from weighted mean H=20.35.
NEODyS18002097-210335.32e-09-6.14-6.250NEODyS: "Based on 61 optical observations (of which 2 are rejected as outliers) from 2020-11-21.062 to 2020-11-27.053."
2020 VVJPL Sentry18002033-21111820.001798671705-3.84-4.320JPL: Computed at 06:16 today Pacific time based on 75 observations spanning 36.918 days (2020-Oct-17.214515 to 2020-Nov-23.13216). Diameter approximately 0.012 km. from weighted mean H=27.25.
NEODyS18002038-21205081.58e-03-4.01-4.49n/aNEODyS: "Based on 75 optical observations (of which 1 are rejected as outliers) from 2020-10-17.215 to 2020-11-23.133."
2017 WE30JPL Sentry18002038-209481.043416e-07-9.83-10.100JPL: Computed at 08:00 Jan. 7th of 2018 Pacific time based on 13 observations spanning .20925 days (2017-Nov-26.26559 to 2017-Nov-26.47484). Diameter approximately 0.001 km. from weighted mean H=31.87.
2017 UC52JPL Sentry18002046-2116434.005366e-07-5.90-6.470JPL: 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.
2015 HM182JPL Sentry18002021-2116961.5587e-07-8.68-9.410JPL: Computed at 03:32 April 10th of 2017 Pacific time based on 8 observations spanning .99480 days (2015-Apr-18.17641 to 2015-Apr-19.17121). Diameter approximately 0.005 km. from weighted mean H=29.00.

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 November '20

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

2010Grabbed MPEC 2020-W179 - Comet P/2020 V4 (Rankin) - see above
1900Grabbed MPEC 2020-W177 - Comet C/2020 V2 (ZTF) - see above
Grabbed MPEC 2020-W178 - Comet P/2020 V3 (Panstarrs) - see above
1800Noted that JPL Sentry has updated its 2015 HM182 risk assessment - see above
Noted that JPL Sentry has updated its 2017 UC52 risk assessment - see above
Noted that JPL Sentry has updated its 2017 WE30 risk assessment - see above
Noted that JPL Sentry has updated its 2020 VV risk assessment - see above
Noted that NEODyS has updated its 2020 VV 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 JPL Sentry has updated its 2020 WZ3 risk assessment - see above
Noted that NEODyS has updated its 2020 WZ3 risk assessment - see above
Grabbed MPEC 2020-W171 - 2020 WZ4 - see above
Grabbed MPEC 2020-W172 - 2020 WA5 - see above
Grabbed MPEC 2020-W173 - 2020 WB5 - see above
Grabbed MPEC 2020-W174 - 2007 AC12 - see above
Grabbed MPEC 2020-W175 - Daily Orbit Update - see above
Grabbed MPEC 2020-W176 - 2020 WC5 - see above
0534Grabbed MPEC 2020-W170 - Comet P/2020 W1 (Rankin) - see above