Contents  on 9 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 9 September '20

The MPC's NEO Confirmation Page has 29 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 29 objects listed. Of these, 20 were "one nighters." So far The Tracking News has counted a total of 53 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 9 September '20

Minor Planet Electronic Circulars

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


MPEC 2020-R60 - "23:15 UT" - 2020 RP1


MPEC 2020-R59 - "23:14 UT" - 2020 RO1


MPEC 2020-R58 - "23:12 UT" - 2020 RN1


MPEC 2020-R57 - "22:11 UT" - 2020 RM1


MPEC 2020-R56 - "22:07 UT" - 2020 RL1


MPEC 2020-R55 - "21:31 UT" - 2020 RK1


<< DOU on 9 September '20 >>  MPEC 2020-R54 - "12:01 UT" - Daily Orbit Update


MPEC 2020-R53 - "11:07 UT" - 2020 RJ1


MPEC 2020-R52 - "10:48 UT" - 2020 RH1


MPEC 2020-R51 - "10:45 UT" - 2020 RG1


MPEC 2020-R50 - "10:42 UT" - 2020 RF1


MPEC 2020-R49 - "10:41 UT" - 2020 RE1


MPEC 2020-R48 - "10:38 UT" - 2020 RD1


MPEC 2020-R47 - "10:31 UT" - 2020 RC1


MPEC 2020-R46 - "00:19 UT" - 2020 RB1


MPEC 2020-R45 - "00:17 UT" - 2020 QA7


MPEC 2020-R44 - "00:16 UT" - 2020 QZ6

Observers  on 9 September '20

A total of 44 observers appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 15 in MPECs 2020-R45, 2020-R47, 2020-R48, 2020-R50, 2020-R51, 2020-R52, 2020-R54 & 2020-R60 -- 2020 RP1, 2020 RH1, 2020 RG1, 2020 RF1, 2020 RD1, 2020 RC1, 2020 QA7, 2020 ON2, 2020 OC, 2020 NU, 2020 MW2, 2020 KP7, 2015 XW261, 2014 WP365, 434344
T05ATLAS Haleakala in Hawaii, 3 in MPECs 2020-R54 & 2020-R56 -- 2020 RL1, 2020 OW3, 2002 JE9
T08ATLAS Mauna Loa in Hawaii, 18 in MPECs 2020-R49, 2020-R54, 2020-R55 & 2020-R57 -- 2020 RW, 2020 RR, 2020 RN, 2020 RM1, 2020 RK1, 2020 RE1, 2020 QV6, 2020 QM1, 2020 PR3, 2020 OC8, 2020 LB3, 2017 HN3, 2016 ED85, 2014 QJ33, 2014 LW21, 2013 TV144, 2013 PY6, 2006 HB
Q68Blue Mountains Obs. in New South Wales, 1 in MPEC 2020-R54 -- 85275
160Castelmartini Obs. in Italy, 2 in MPECs 2020-R54 & 2020-R57 -- 2020 RM1, 2020 RB
Z99Clixby Obs. in England, 5 in MPEC 2020-R54 -- 2020 RW, 2020 RJ, 2020 RF, 2020 RC, 2020 RB
958Dax Obs. in France, 1 in MPEC 2020-R55 -- 2020 RK1
W84&program code "&" (15) via DECam in Chile, 1 in MPEC 2020-R54 -- 2018 JC2
K87Dettelbach Vineyard Obs. in Germany, 13 in MPEC 2020-R54 -- 2020 RW, 2020 RM, 2020 RK, 2020 RJ, 2020 RF, 2020 RE, 2020 RC, 2020 RA1, 2020 RA, 2020 QO4, 2020 QH4, 2020 PR3, 2020 ML3
J27El Guijo Obs. in Spain, 2 in MPEC 2020-R54 -- 2020 RC, 105140
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2020-R57 -- 2020 RM1
K83Forti Obs., 1 in MPEC 2020-R57 -- 2020 RM1
W46Foxfire Village Obs., 1 in MPEC 2020-R54 -- 3752
203GiaGa Obs. in Italy, 1 in MPEC 2020-R50 -- 2020 RF1
K88GINOP-KHK in Hungary, 3 in MPECs 2020-R51, 2020-R54 & 2020-R55 -- 2020 RK1, 2020 RG1, 2020 PD1
E94Gisborne Obs. in New Zealand, 1 in MPEC 2020-R55 -- 2020 RK1
U55Golden Ears Obs., 1 in MPEC 2020-R54 -- 2020 RC
J95Great Shefford Obs. in England, 2 in MPECs 2020-R46 & 2020-R57 -- 2020 RM1, 2020 RB1
A17Guidestar Obs. in Germany, 3 in MPECs 2020-R50, 2020-R54 & 2020-R57 -- 2020 RM1, 2020 RF1, 2020 QO4
2461program code 1 via KLENOT in the Czech Republic, 8 in MPECs 2020-R46, 2020-R48, 2020-R50, 2020-R54, 2020-R55, 2020-R56 & 2020-R57 -- 2020 RW, 2020 RM1, 2020 RL1, 2020 RK1, 2020 RK, 2020 RF1, 2020 RD1, 2020 RB1
K38M57 Obs. in Italy, 3 in MPECs 2020-R54 & 2020-R55 -- 2020 RK1, 2020 RF, 2020 RC
K95MASTER-II Sutherland in South Africa, 1 in MPEC 2020-R54 -- 887
G96Mt. Lemmon Survey (MLS) in Arizona, 15 in MPECs 2020-R44, 2020-R45, 2020-R46, 2020-R48, 2020-R50, 2020-R51, 2020-R52 & 2020-R54 -- 2020 RH1, 2020 RG1, 2020 RF1, 2020 RD1, 2020 RB1, 2020 QZ6, 2020 QV1, 2020 QA7, 2020 PX1, 2020 OC8, 2020 MP, 2014 QL390, 2011 SO32, 2011 ES4, 2007 SW2
J69North Obs. in England, 3 in MPECs 2020-R54 & 2020-R57 -- 2020 RW, 2020 RM1, 2020 RA1
Z80Northolt Branch Obs. in England, 1 in MPEC 2020-R57 -- 2020 RM1
G34Oberfrauendorf Obs. in Germany, 5 in MPECs 2020-R54 & 2020-R57 -- 2020 RM1, 2020 RC, 2020 RA1, 2016 NV38, 2016 ED85
F51Pan-STARRS 1 (PS1) in Hawaii, 23 in MPECs 2020-R45, 2020-R46, 2020-R47, 2020-R49, 2020-R53, 2020-R54, 2020-R58, 2020-R59 & 2020-R60 -- 2020 RX, 2020 RQ, 2020 RP1, 2020 RO1, 2020 RO, 2020 RN1, 2020 RJ1, 2020 RF, 2020 RE1, 2020 RC1, 2020 RB1, 2020 QQ6, 2020 QN, 2020 QM, 2020 QA7, 2020 NA, 2020 ML3, 2020 HS8, 2014 QJ33, 2014 GL49, 2013 PY6, 2007 TZ18, 2006 HB
F52Pan-STARRS 2 (PS2) in Hawaii, 17 in MPECs 2020-R44, 2020-R47, 2020-R48, 2020-R53, 2020-R54, 2020-R55, 2020-R56, 2020-R57, 2020-R58, 2020-R59 & 2020-R60 -- 2020 RX, 2020 RW, 2020 RP1, 2020 RO1, 2020 RN1, 2020 RM1, 2020 RL1, 2020 RK1, 2020 RJ1, 2020 RF, 2020 RD1, 2020 RC1, 2020 QZ6, 2020 QD, 2020 PC5, 2020 OW3, 2007 TZ18
L18QOS Obs., 3 in MPECs 2020-R54 & 2020-R57 -- 2020 RM1, 2020 RJ, 2020 RC
L04ROASTERR-1 in Romania, 1 in MPEC 2020-R57 -- 2020 RM1
K61Rokycany Obs. in the Czech Republic, 4 in MPECs 2020-R49, 2020-R54 & 2020-R55 -- 2020 RK1, 2020 RJ, 2020 RE1, 2014 QJ33
L40Saarbruecken Rastpfuhl Obs., 1 in MPEC 2020-R54 -- 2020 RC
104San Marcello Pistoiese Obs. in Italy, 5 in MPECs 2020-R46, 2020-R48, 2020-R50, 2020-R54 & 2020-R55 -- 2020 RK1, 2020 RF1, 2020 RD1, 2020 RB1, 2020 RA1
C95SATINO-1 in France, 1 in MPEC 2020-R54 -- 2016 NV38
204Schiaparelli Obs. in Italy, 5 in MPECs 2020-R48, 2020-R50, 2020-R52, 2020-R55 & 2020-R57 -- 2020 RM1, 2020 RK1, 2020 RH1, 2020 RF1, 2020 RD1
Y00SONEAR in Brazil, 1 in MPEC 2020-R57 -- 2020 RM1
I93St. Pardon de Conques Obs. in France, 6 in MPECs 2020-R48, 2020-R49, 2020-R50, 2020-R54, 2020-R55 & 2020-R60 -- 2020 RP1, 2020 RK1, 2020 RF1, 2020 RE1, 2020 RD1, 2020 RB1
I52Steward Obs. Mt. Lemmon Station in Arizona, 6 in MPECs 2020-R48, 2020-R50, 2020-R51, 2020-R52, 2020-R54 & 2020-R60 -- 2020 RU, 2020 RP1, 2020 RH1, 2020 RG1, 2020 RF1, 2020 RD1
A16Tentlingen Obs. in Switzerland, 3 in MPEC 2020-R54 -- 66008, 503960, 420302
K62Teplice Obs. in the Czech Republic, 1 in MPEC 2020-R57 -- 2020 RM1
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-R54 -- 2016 UE101
L01Visnjan Obs. in Croatia, 16 in MPECs 2020-R44, 2020-R45, 2020-R46, 2020-R47, 2020-R48, 2020-R49, 2020-R50, 2020-R51, 2020-R52, 2020-R54, 2020-R55, 2020-R56, 2020-R58, 2020-R59 & 2020-R60 -- 2020 RP1, 2020 RO1, 2020 RN1, 2020 RL1, 2020 RK1, 2020 RH1, 2020 RG1, 2020 RF1, 2020 RE1, 2020 RD1, 2020 RC1, 2020 RB1, 2020 QZ6, 2020 QA7, 2020 PM4, 2020 PD1
G33Wickede Obs. in Germany, 1 in MPEC 2020-R54 -- 136900
C51WISE in Earth polar orbit, 1 in MPEC 2020-R44 -- 2020 QZ6
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 9 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 RH1NEODyS17022039-2110365.35e-09-5.55-6.430NEODyS: "Based on 19 optical observations (of which 0 are rejected as outliers) from 2020-09-06.155 to 2020-09-08.862."
JPL Sentry17012038-2118575.81444e-08-4.60-5.760JPL: Computed at 05:03 today Pacific time based on 19 observations spanning 2.7064 days (2020-Sep-06.15449 to 2020-Sep-08.86085). Diameter approximately 0.301 km. from weighted mean H=20.24.
2020 RKNEODyS17022089-210433.76e-07-6.72-6.980NEODyS: "Based on 87 optical observations (of which 1 are rejected as outliers) from 2020-09-05.248 to 2020-09-08.922."
JPL Sentry17012089-208911.269e-07-7.14-7.140JPL: Computed at 07:01 today Pacific time based on 87 observations spanning 3.6737 days (2020-Sep-05.24723 to 2020-Sep-08.92094). Diameter approximately 0.030 km. from weighted mean H=25.24.
2017 SG33JPL Sentry17012051-210948.208e-10-8.43-8.820JPL: Computed at 08:06 Oct. 14th of 2017 Pacific time based on 6 observations spanning .83078 days (2017-Sep-25.38015 to 2017-Sep-26.210934). Diameter approximately 0.055 km. from weighted mean H=23.94.
2015 RU178JPL Sentry17012055-205519.605e-10-10.04-10.040JPL: Computed at 20:01 April 9th of 2017 Pacific time based on 9 observations spanning 5.9234 days (2015-Sep-12.41082 to 2015-Sep-18.33422). Diameter approximately 0.009 km. from weighted mean H=27.89.
2013 RR43JPL Sentry17012050-205725.968e-08-7.00-7.080JPL: Computed at 13:01 April 12th of 2017 Pacific time based on 26 observations spanning 14.838 days (2013-Sep-09.46134 to 2013-Sep-24.29896). Diameter approximately 0.028 km. from weighted mean H=25.40.
2010 RK53JPL Sentry17012029-202913.379e-08-8.20-8.200JPL: Computed at 06:43 April 8th of 2017 Pacific time based on 21 observations spanning 6.9513 days (2010-Sep-10.41574 to 2010-Sep-17.367047). Diameter approximately 0.009 km. from weighted mean H=27.84.
2008 EM68JPL Sentry17012020-211610871.05836191e-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 9 September '20

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

2330Grabbed MPEC 2020-R58 - 2020 RN1 - see above
Grabbed MPEC 2020-R59 - 2020 RO1 - see above
Grabbed MPEC 2020-R60 - 2020 RP1 - see above
2301Grabbed MPEC 2020-R55 - 2020 RK1 - see above
Grabbed MPEC 2020-R56 - 2020 RL1 - see above
Grabbed MPEC 2020-R57 - 2020 RM1 - see above
1702Noted that NEODyS has posted 2020 RH1 as an impact risk - see above
Noted that NEODyS has updated its 2020 RK risk assessment - see above
1701Noted that JPL Sentry has updated its 2008 EM68 risk assessment - see above
Noted that JPL Sentry has updated its 2010 RK53 risk assessment - see above
Noted that JPL Sentry has updated its 2013 RR43 risk assessment - see above
Noted that JPL Sentry has updated its 2015 RU178 risk assessment - see above
Noted that JPL Sentry has updated its 2017 SG33 risk assessment - see above
Noted that JPL Sentry has posted 2020 RH1 as an impact risk - see above
Noted that JPL Sentry has updated its 2020 RK risk assessment - see above
Grabbed MPEC 2020-R49 - 2020 RE1 - see above
Grabbed MPEC 2020-R50 - 2020 RF1 - see above
Grabbed MPEC 2020-R54 - Daily Orbit Update - see above
1700Grabbed MPEC 2020-R47 - 2020 RC1 - see above
Grabbed MPEC 2020-R48 - 2020 RD1 - see above
Grabbed MPEC 2020-R51 - 2020 RG1 - see above
Grabbed MPEC 2020-R52 - 2020 RH1 - see above
Grabbed MPEC 2020-R53 - 2020 RJ1 - see above
0117Grabbed MPEC 2020-R44 - 2020 QZ6 - see above
Grabbed MPEC 2020-R45 - 2020 QA7 - see above
Grabbed MPEC 2020-R46 - 2020 RB1 - see above