Contents  on 2 September '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 2 September '20

The MPC's NEO Confirmation Page has 22 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 22 objects listed. Of these, fourteen were "one nighters." So far The Tracking News has counted a total of 26 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 2 September '20

Minor Planet Electronic Circulars

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


<< DOU on 2 September '20 >>  MPEC 2020-R03 - "12:05 UT" - Daily Orbit Update

Observers  on 2 September '20

Fifteen observers appear in today's MPEC.

CodeObserver / observatory
T05ATLAS Haleakala in Hawaii, 4 in MPEC 2020-R03 -- 2013 UX14, 2010 JV153, 5645, 887
T08ATLAS Mauna Loa in Hawaii, 17 in MPEC 2020-R03 -- 2016 NV38, 96744, 66146, 66008, 420302, 382625, 23187, 163081, 162173, 136900, 5587, 3752, 2212, 1865, 1685, 1036, 433
160Castelmartini Obs. in Italy, 7 in MPEC 2020-R03 -- 2020 LA2, 2016 ED85, 96744, 87684, 53435, 145656, 144411
Z99Clixby Obs. in England, 3 in MPEC 2020-R03 -- 2020 QV6, 2020 QO4, 2020 HP8
J95Great Shefford Obs. in England, 3 in MPEC 2020-R03 -- 2020 QV6, 2020 QH4, 2020 QG5
Q621Hidetaka Sato in Japan via iTelescope Obs. Siding Spring in New South Wales, 2 in MPEC 2020-R03 -- 2020 BZ12, 1566
C401program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-R03 -- 420302
G96Mt. Lemmon Survey (MLS) in Arizona, 5 in MPEC 2020-R03 -- 2020 QN1, 2020 OB, 2020 KO5, 2020 BE1, 2019 AN7
J69North Obs. in England, 2 in MPEC 2020-R03 -- 2020 QV6, 465824
Z80Northolt Branch Obs. in England, 2 in MPEC 2020-R03 -- 2016 NV38, 382625
F51Pan-STARRS 1 (PS1) in Hawaii, 7 in MPEC 2020-R03 -- 2020 PG6, 2016 CB32, 2009 JK1, 465166, 414903, 10115, 2212
F52Pan-STARRS 2 (PS2) in Hawaii, 4 in MPEC 2020-R03 -- 2020 ML3, 2016 CB32, 414903, 10115
C95SATINO-1 in France, 1 in MPEC 2020-R03 -- 2020 HP8
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-R03 -- 2016 FP12
I41Zwicky Transient Facility (ZTF) in southern California, 15 in MPEC 2020-R03 -- 2020 ML3, 99935, 53435, 382625, 382503, 354663, 322763, 299582, 21088, 209924, 19356, 4503, 4055, 2100, 433
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 2 September '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 QN1JPL Sentry18002102-2119138.68101e-06-4.59-4.860JPL: Computed at 07:10 today Pacific time based on 28 observations spanning 27.930 days (2020-Jul-31.38815 to 2020-Aug-28.31841). Diameter approximately 0.079 km. from weighted mean H=23.15.
NEODyS18002099-2118326.48e-06-4.73-4.950NEODyS: "Based on 28 optical observations (of which 0 are rejected as outliers) from 2020-07-31.389 to 2020-08-28.319."
2020 PG6JPL Sentry18002029-2048110.0002323864-3.98-3.990JPL: Computed at 07:03 today Pacific time based on 28 observations spanning 11.917 days (2020-Aug-11.36766 to 2020-Aug-23.284919). Diameter approximately 0.014 km. from weighted mean H=26.97.
NEODyS18002029-2048143.68e-04-3.81-3.810NEODyS: "Based on 28 optical observations (of which 0 are rejected as outliers) from 2020-08-11.368 to 2020-08-23.286."
2020 OBJPL Sentry18002114-211935.7576e-08-6.49-6.630JPL: Computed at 07:02 today Pacific time based on 16 observations spanning 1.9426 days (2020-Jul-16.44824 to 2020-Jul-18.39088). Diameter approximately 0.064 km. from weighted mean H=23.64.
NEODyS18002114-211661.68e-05-4.05-4.290NEODyS: "Based on 16 optical observations (of which 1 are rejected as outliers) from 2020-07-16.449 to 2020-07-18.392."
2011 ES4JPL Sentry18002031-2112755.38789188e-05-4.65-5.110JPL: Computed at 05:58 Jan. 11th Pacific time based on 44 observations spanning 4.0327 days (2011-Mar-02.19847 to 2011-Mar-06.23118). Diameter approximately 0.025 km. from weighted mean H=25.68.

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 2 September '20

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

1800Noted that JPL Sentry has updated its 2011 ES4 risk assessment - see above
Noted that JPL Sentry has updated its 2020 OB risk assessment - see above
Noted that NEODyS has updated its 2020 OB risk assessment - see above
Noted that JPL Sentry has updated its 2020 PG6 risk assessment - see above
Noted that NEODyS has updated its 2020 PG6 risk assessment - see above
Noted that JPL Sentry has updated its 2020 QN1 risk assessment - see above
Noted that NEODyS has updated its 2020 QN1 risk assessment - see above
Grabbed MPEC 2020-R03 - Daily Orbit Update - see above