Contents  on 5 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 5 September '20

The MPC's NEO Confirmation Page has 25 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 25 objects listed. Of these, eleven were "one nighters." So far The Tracking News has counted a total of 29 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 5 September '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.


MPEC 2020-R13 - "23:34 UT" - 2020 RE


<< DOU on 5 September '20 >>  MPEC 2020-R12 - "12:07 UT" - Daily Orbit Update


MPEC 2020-R11 - "10:33 UT" - 2020 RD


MPEC 2020-R10 - "00:02 UT" - 2020 RC

Observers  on 5 September '20

A total of 37 observers appear in today's MPECs.

CodeObserver / observatory
834AAAA Buenos Aires Obs. in Argentina, 1 in MPEC 2020-R12 -- 85275
T05ATLAS Haleakala in Hawaii, 7 in MPECs 2020-R10 & 2020-R12 -- 2020 RC, 2002 JE9, 90147, 85804, 428086, 137799, 105140
T08ATLAS Mauna Loa in Hawaii, 20 in MPECs 2020-R10 & 2020-R12 -- 2020 RC, 2020 QV6, 2012 DP8, 2006 HB, 2005 QS10, 90075, 87684, 53435, 35107, 30825, 23187, 137799, 136900, 11405, 5645, 5587, 4953, 4055, 3753, 3691
X74Campo dos Amarais Obs., 2 in MPEC 2020-R12 -- 85275, 6569
160Castelmartini Obs. in Italy, 11 in MPECs 2020-R12 & 2020-R13 -- 2020 RE, 2020 RA, 2020 LB3, 90075, 85804, 66008, 470678, 382625, 163081, 136900, 106538
703Catalina Sky Survey in Arizona, 1 in MPEC 2020-R11 -- 2020 RD
Z99Clixby Obs. in England, 4 in MPECs 2020-R11 & 2020-R12 -- 2020 RD, 2020 QO4, 2020 OA2, 2020 MC4
958Dax Obs. in France, 1 in MPEC 2020-R10 -- 2020 RC
K87Dettelbach Vineyard Obs. in Germany, 4 in MPEC 2020-R12 -- 2020 QO4, 2020 LA2, 2020 HP8, 2012 DP8
734Farpoint Obs. in Kansas, 2 in MPEC 2020-R12 -- 2020 RB, 2020 NM1
595Farra d'Isonzo Obs. in Italy, 2 in MPECs 2020-R10 & 2020-R13 -- 2020 RE, 2020 RC
W46Foxfire Village Obs., 3 in MPEC 2020-R12 -- 2020 QV6, 2005 QS10, 105140
X31Galilei Obs., 1 in MPEC 2020-R10 -- 2020 RC
203GiaGa Obs. in Italy, 2 in MPECs 2020-R10 & 2020-R11 -- 2020 RD, 2020 RC
J95Great Shefford Obs. in England, 3 in MPECs 2020-R11, 2020-R12 & 2020-R13 -- 2020 RE, 2020 RD, 2020 RC
A17Guidestar Obs. in Germany, 5 in MPEC 2020-R12 -- 2020 QO4, 2020 LA2, 2020 HP8, 465824, 325395
K78Iota Scorpii Obs., 1 in MPEC 2020-R12 -- 2020 RA
C401program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-R12 -- 420302
K38M57 Obs. in Italy, 1 in MPEC 2020-R12 -- 2020 OC8
G96Mt. Lemmon Survey (MLS) in Arizona, 11 in MPECs 2020-R11, 2020-R12 & 2020-R13 -- 2020 RE, 2020 RD, 2020 QW2, 53430, 428086, 241596, 163902, 159929, 144411, 141851, 141052
F51Pan-STARRS 1 (PS1) in Hawaii, 8 in MPECs 2020-R11 & 2020-R12 -- 2020 RD, 2020 PR3, 2020 PG, 2020 OC8, 2020 MP, 2020 LH1, 2015 PZ228, 2014 QL390
F52Pan-STARRS 2 (PS2) in Hawaii, 9 in MPECs 2020-R12 & 2020-R13 -- 2020 RE, 2020 PX1, 2020 OC8, 2020 MP, 2020 LJ2, 2017 QM18, 2016 RU, 2014 NE64, 2011 QG9
B49Paus Obs. in Spain, 1 in MPEC 2020-R11 -- 2020 RD
V93Pin Oak Obs., 4 in MPEC 2020-R12 -- 500094, 420302, 159402, 136900
D29Purple Mtn. Obs. Xuyi Station in China, 12 in MPEC 2020-R12 -- 2020 QV6, 2020 PC3, 2020 MP, 2020 ML3, 2014 LW21, 2011 FY2, 2004 QD17, 87311, 66008, 54401, 503960, 162173
L04ROASTERR-1 in Romania, 4 in MPECs 2020-R12 & 2020-R13 -- 2020 RE, 2020 RA, 2020 OD, 500094
104San Marcello Pistoiese Obs. in Italy, 3 in MPECs 2020-R11 & 2020-R12 -- 2020 RD, 2020 RA, 2020 QW2
H36Sandlot Obs. in Kansas, 1 in MPEC 2020-R11 -- 2020 RD
C95SATINO-1 in France, 1 in MPEC 2020-R12 -- 2020 MF2
204Schiaparelli Obs. in Italy, 2 in MPECs 2020-R10 & 2020-R11 -- 2020 RD, 2020 RC
Y00SONEAR in Brazil, 1 in MPEC 2020-R10 -- 2020 RC
I93St. Pardon de Conques Obs. in France, 2 in MPECs 2020-R10 & 2020-R13 -- 2020 RE, 2020 RC
I52Steward Obs. Mt. Lemmon Station in Arizona, 27 in MPECs 2020-R11, 2020-R12 & 2020-R13 -- 2020 RE, 2020 RD, 2020 QX4, 2020 QV4, 2020 QV1, 2020 QT3, 2020 QS1, 2020 QS, 2020 QR6, 2020 QP6, 2020 QN3, 2020 QN1, 2020 QM6, 2020 QE4, 2020 QB3, 2020 QA6, 2020 PX1, 2020 PV3, 2020 PR3, 2020 PO1, 2020 PJ3, 2020 OX6, 2020 OG6, 2020 OG4, 2020 NQ1, 2013 TS5, 2012 SW49
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-R12 -- 2016 WT
L01Visnjan Obs. in Croatia, 1 in MPEC 2020-R13 -- 2020 RE
C51WISE in Earth polar orbit, 2 in MPEC 2020-R12 -- 1999 HV1, 3752
I41Zwicky Transient Facility (ZTF) in southern California, 8 in MPEC 2020-R12 -- 2020 ML3, 88264, 428086, 414903, 382625, 5587, 4953, 4055
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 5 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 RBJPL Sentry1700R E M O V E DJPL: Risk listing removed at 1357 UTC today
2020 QN1NEODyS23012099-2118151.63e-06-5.30-5.430NEODyS: "Based on 31 optical observations (of which 0 are rejected as outliers) from 2020-07-31.389 to 2020-09-05.144."
JPL Sentry17002099-211982.09966e-06-5.19-5.630JPL: Computed at 07:11 today Pacific time based on 31 observations spanning 35.755 days (2020-Jul-31.38815 to 2020-Sep-05.14286). Diameter approximately 0.080 km. from weighted mean H=23.13.
2016 WTNEODyS23012070-2117722.97e-05-7.12-7.980NEODyS: "Based on 30 optical observations (of which 0 are rejected as outliers) from 2016-11-18.435 to 2016-11-24.526."
JPL Sentry17002072-2119343.0626022e-05-7.09-7.900JPL: Computed at 07:03 today Pacific time based on 30 observations spanning 6.0915 days (2016-Nov-18.43417 to 2016-Nov-24.525653). Diameter approximately 0.004 km. from weighted mean H=29.77.
2016 DA31JPL Sentry17002031-21171890.0002853729145-5.42-5.700JPL: Computed at 12:36 April 8th of 2017 Pacific time based on 14 observations spanning .85160 days (2016-Feb-28.4092 to 2016-Feb-29.2608). Diameter approximately 0.004 km. from weighted mean H=29.90.
2013 RO30JPL Sentry17002044-2095109.144257e-05-5.90-6.010JPL: Computed at 05:30 April 9th of 2017 Pacific time based on 11 observations spanning 1.9833 days (2013-Sep-05.4254 to 2013-Sep-07.408726). Diameter approximately 0.007 km. from weighted mean H=28.41.
2010 RM80JPL Sentry17002085-2116211.1190499e-05-6.82-7.320JPL: Computed at 10:29 April 11th of 2017 Pacific time based on 52 observations spanning 7.9169 days (2010-Sep-11.28495 to 2010-Sep-19.20187). Diameter approximately 0.009 km. from weighted mean H=27.95.
2010 QG2JPL Sentry17002051-206461.059863e-05-4.39-4.400JPL: Computed at 06:32 July 17th of 2019 Pacific time based on 34 observations spanning 4.9710 days (2010-Aug-29.457787 to 2010-Sep-03.42881). Diameter approximately 0.047 km. from weighted mean H=24.28.
2008 EM68JPL Sentry17002020-211610881.05906381e-05-5.32-5.650JPL: Computed at 00:27 April 7th of 2017 Pacific time based on 12 observations spanning .11019 days (2008-Mar-08.25164 to 2008-Mar-08.36183). Diameter approximately 0.010 km. from weighted mean H=27.72.

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 5 September '20

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

2358Grabbed MPEC 2020-R13 - 2020 RE - see above
2301Noted that NEODyS has updated its 2016 WT risk assessment - see above
Noted that NEODyS has updated its 2020 QN1 risk assessment - see above
1700Noted that JPL Sentry has updated its 2008 EM68 risk assessment - see above
Noted that JPL Sentry has updated its 2010 QG2 risk assessment - see above
Noted that JPL Sentry has updated its 2010 RM80 risk assessment - see above
Noted that JPL Sentry has updated its 2013 RO30 risk assessment - see above
Noted that JPL Sentry has updated its 2016 DA31 risk assessment - see above
Noted that JPL Sentry has updated its 2016 WT risk assessment - see above
Noted that JPL Sentry has updated its 2020 QN1 risk assessment - see above
Noted that JPL Sentry has removed 2020 RB as an impact risk - see above
Grabbed MPEC 2020-R11 - 2020 RD - see above
Grabbed MPEC 2020-R12 - Daily Orbit Update - see above
0009Grabbed MPEC 2020-R10 - 2020 RC - see above