Contents  on 7 August '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 7 August '20

The MPC's NEO Confirmation Page has 31 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 31 objects listed. Of these, thirteen 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 7 August '20

Minor Planet Electronic Circulars

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


<< DOU on 7 August '20 >>  MPEC 2020-P25 - "12:00 UT" - Daily Orbit Update


MPEC 2020-P24 - "04:15 UT" - 2020 OY6


MPEC 2020-P23 - "03:56 UT" - 2020 PC


MPEC 2020-P22 - "01:17 UT" - 2020 OX6

Observers  on 7 August '20

Fourteen observers appear in today's MPECs.

CodeObserver / observatory
160Castelmartini Obs. in Italy, 9 in MPEC 2020-P25 -- 2020 ND, 2010 EC135, 2006 NL, 2003 BK47, 85275, 477885, 136874, 106589, 8014
J95Great Shefford Obs. in England, 1 in MPEC 2020-P23 -- 2020 PC
A17Guidestar Obs. in Germany, 6 in MPEC 2020-P25 -- 87684, 500094, 480936, 380128, 308043, 136900
G96Mt. Lemmon Survey (MLS) in Arizona, 2 in MPECs 2020-P22 & 2020-P23 -- 2020 PC, 2020 OX6
L76Nomad Obs., 1 in MPEC 2020-P25 -- 2019 AN5
F51Pan-STARRS 1 in Hawaii, 1 in MPEC 2020-P24 -- 2020 OY6
F52Pan-STARRS 2 in Hawaii, 1 in MPEC 2020-P24 -- 2020 OY6
6581Dave Balam via Plaskett 1.8m Telescope in British Columbia, 1 in MPEC 2020-P22 -- 2020 OX6
L18QOS Obs., 8 in MPEC 2020-P25 -- 2014 LW21, 2006 UD63, 2006 HB, 2003 BK47, 90147, 480936, 442037, 1865
H36Sandlot Obs. in Kansas, 1 in MPEC 2020-P25 -- 2020 OK5
C95SATINO-1 in France, 1 in MPEC 2020-P25 -- 2007 VX137
I52Steward Obs. Mt. Lemmon Station in Arizona, 17 in MPECs 2020-P22 & 2020-P25 -- 2020 OY5, 2020 OX6, 2020 OU4, 2020 OU2, 2020 OS4, 2020 ON1, 2020 OM1, 2020 OJ3, 2020 OG, 2020 OE4, 2020 NJ1, 2020 NG1, 2020 NE1, 2020 MG, 2020 MF2, 2020 KR7, 2016 CX264
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-P25 -- 533372
L01Visnjan Obs. in Croatia, 3 in MPECs 2020-P22, 2020-P23 & 2020-P24 -- 2020 PC, 2020 OY6, 2020 OX6
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 7 August '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 PCJPL Sentry17002071-208738.46909e-06-6.81-6.820JPL: Computed at 22:06 Aug. 6th Pacific time based on 18 observations spanning 5.6770 days (2020-Aug-01.44721 to 2020-Aug-07.124211). Diameter approximately 0.008 km. from weighted mean H=28.02.
NEODyS17002069-2118343.78e-06-7.30-8.020NEODyS: "Based on 18 optical observations (of which 0 are rejected as outliers) from 2020-08-01.448 to 2020-08-07.125."
2020 OY5JPL Sentry17002063-208132.4852e-06-4.78-4.880JPL: Computed at 06:31 today Pacific time based on 75 observations spanning 9.8421 days (2020-Jul-28.486878 to 2020-Aug-07.32901). Diameter approximately 0.064 km. from weighted mean H=23.62.
NEODyS17002063-208141.43e-06-5.01-5.240NEODyS: "Based on 75 optical observations (of which 1 are rejected as outliers) from 2020-07-28.488 to 2020-08-07.330."
2020 OK5NEODyS1700211212.21e-10-10.46-10.460NEODyS: "Based on 25 optical observations (of which 0 are rejected as outliers) from 2020-07-13.562 to 2020-08-07.270."
2018 PR7JPL Sentry17002097-209714.237e-09-10.47-10.470JPL: Computed at 07:49 Aug. 17th of 2018 Pacific time based on 55 observations spanning 8.1407 days (2018-Aug-06.26605 to 2018-Aug-14.406722). Diameter approximately 0.007 km. from weighted mean H=28.53.
2016 CG18JPL Sentry17002062-2116408.76486134e-05-6.06-6.400JPL: Computed at 00:22 April 12th of 2017 Pacific time based on 106 observations spanning 3.0809 days (2016-Feb-03.38205 to 2016-Feb-06.462999). Diameter approximately 0.007 km. from weighted mean H=28.50.
2014 MO68JPL Sentry17002088-210826.25872e-07-5.71-5.710JPL: Computed at 08:00 July 18th of 2019 Pacific time based on 17 observations spanning 11.040 days (2014-Jun-20.41351 to 2014-Jul-01.453713). Diameter approximately 0.073 km. from weighted mean H=23.33.
2013 UJ5JPL Sentry17002061-206111.016e-07-8.37-8.370JPL: Computed at 13:06 April 8th of 2017 Pacific time based on 19 observations spanning 5.1624 days (2013-Oct-24.32564 to 2013-Oct-29.488068). Diameter approximately 0.009 km. from weighted mean H=27.99.
2010 CAJPL Sentry17002022-202217.389e-09-6.37-6.370JPL: Computed at 05:44 April 8th of 2017 Pacific time based on 64 observations spanning 19.683 days (2010-Jan-25.414529 to 2010-Feb-14.097229). Diameter approximately 0.044 km. from weighted mean H=24.43.

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 7 August '20

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

1700Noted that JPL Sentry has updated its 2010 CA risk assessment - see above
Noted that JPL Sentry has updated its 2013 UJ5 risk assessment - see above
Noted that JPL Sentry has updated its 2014 MO68 risk assessment - see above
Noted that JPL Sentry has updated its 2016 CG18 risk assessment - see above
Noted that JPL Sentry has updated its 2018 PR7 risk assessment - see above
Noted that NEODyS has posted 2020 OK5 as an impact risk - see above
Noted that JPL Sentry has updated its 2020 OY5 risk assessment - see above
Noted that NEODyS has updated its 2020 OY5 risk assessment - see above
Noted that JPL Sentry has posted 2020 PC as an impact risk - see above
Noted that NEODyS has posted 2020 PC as an impact risk - see above
Grabbed MPEC 2020-P25 - Daily Orbit Update - see above
0430Grabbed MPEC 2020-P22 - 2020 OX6 - see above
Grabbed MPEC 2020-P23 - 2020 PC - see above
Grabbed MPEC 2020-P24 - 2020 OY6 - see above