Contents  on 29 June '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 29 June '20

The MPC's NEO Confirmation Page has 32 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 32 objects listed. Of these, nineteen 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 29 June '20

Minor Planet Electronic Circulars

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


MPEC 2020-M136 - "20:21 UT" - 2020 MR3


MPEC 2020-M135 - "20:18 UT" - 2020 MQ3


<< DOU on 29 June '20 >>  MPEC 2020-M134 - "12:03 UT" - Daily Orbit Update

Observers  on 29 June '20

A total of 22 observers appear in today's MPECs.

CodeObserver / observatory
T05ATLAS Haleakala in Hawaii, 10 in MPEC 2020-M134 -- 2020 JU, 2016 YN4, 2016 AX147, 66008, 467963, 292165, 154278, 105140, 8566, 3752
T08ATLAS Mauna Loa in Hawaii, 37 in MPEC 2020-M134 -- 2020 MT2, 2020 HO10, 2017 QM18, 2010 EC135, 2006 HB, 2004 LU3, 90147, 87311, 66251, 54401, 53435, 495615, 477885, 428086, 422977, 420302, 382503, 380128, 367390, 354952, 331471, 241662, 19764, 175189, 163348, 138911, 137199, 106538, 103067, 8014, 7977, 6569, 6050, 5751, 1685, 1221, 887
Z36Cancelada Obs., 1 in MPEC 2020-M134 -- 85275
160Castelmartini Obs. in Italy, 9 in MPEC 2020-M134 -- 2017 QM18, 2010 EC135, 66251, 477885, 441987, 331471, 137199, 136874, 106589
K83Forti Obs., 3 in MPEC 2020-M134 -- 66253, 163348, 137199
W46Foxfire Village Obs., 1 in MPEC 2020-M134 -- 138911
U55Golden Ears Obs., 1 in MPEC 2020-M134 -- 105140
Q66JAXA Janess-G in New South Wales, 1 in MPEC 2020-M134 -- 2020 MK3
C401program code 1 via Kuban State Univ. Obs. in Russia, 2 in MPEC 2020-M134 -- 8014, 6569
Z43Landehen Obs., 1 in MPEC 2020-M134 -- 2020 MP1
W92MASTER OAFA Obs., 2 in MPEC 2020-M134 -- 66146, 2102
568^R. Wainscoat on Mauna Kea in Hawaii, 3 in MPECs 2020-M134, 2020-M135 & 2020-M136 -- 2020 MR3, 2020 MQ3, 2020 MN3
F51Pan-STARRS 1 (PS1) in Hawaii, 17 in MPECs 2020-M134, 2020-M135 & 2020-M136 -- 2020 MR3, 2020 MQ3, 2020 LD2, 2015 PZ228, 2012 BD77, 2012 AA3, 2010 RN80, 2006 JF, 2003 OA3, 96744, 86829, 53430, 500094, 422699, 137799, 10860, 5653
F52Pan-STARRS 2 (PS2) in Hawaii, 12 in MPECs 2020-M134, 2020-M135 & 2020-M136 -- 2020 MR3, 2020 MQ3, 2020 LX, 2018 EE4, 2006 KY86, 2003 OA3, 2003 BK47, 85184, 66253, 405189, 395143, 137802
654Pomona College Table Mtn. Obs. (PCTMO) in southern California, 4 in MPEC 2020-M134 -- 2020 MZ, 2020 MG3, 2020 ME, 2020 MA1
L18QOS Obs., 2 in MPEC 2020-M134 -- 2005 MR5, 441987
L07Salvatore di Giacomo Obs., 1 in MPEC 2020-M134 -- 2020 MK3
104San Marcello Pistoiese Obs. in Italy, 3 in MPEC 2020-M134 -- 2006 UD63, 2006 HB, 6569
C95SATINO-1 in France, 1 in MPEC 2020-M134 -- 13651
Y00SONEAR in Brazil, 1 in MPEC 2020-M134 -- 420302
T14UH/Tholen NEO Follow-Up CFH Telescope in Hawaii, 1 in MPEC 2020-M134 -- 2020 LO
I41Zwicky Transient Facility (ZTF) in southern California, 2 in MPEC 2020-M134 -- 2017 MW7, 2010 RB130
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 29 June '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 MP1JPL Sentry15302105-210522.2676e-06-6.53-6.620JPL: Computed at 06:30 today Pacific time based on 143 observations spanning 3.8067 days (2020-Jun-21.284759 to 2020-Jun-25.091455). Diameter approximately 0.020 km. from weighted mean H=26.10.
NEODyS1530210523.38e-06-6.36-6.660NEODyS: "Based on 143 optical observations (of which 0 are rejected as outliers) from 2020-06-21.286 to 2020-06-25.092."
2020 MA1JPL Sentry1530R E M O V E DJPL: Risk listing removed at 1341 UTC today
NEODyS1530209712.88e-09-9.16-9.160NEODyS: "Based on 27 optical observations (of which 0 are rejected as outliers) from 2020-06-16.406 to 2020-06-26.304."
2020 LOJPL Sentry15302065-206512.802e-08-8.53-8.530JPL: Computed at 06:35 today Pacific time based on 48 observations spanning 15.096 days (2020-Jun-12.32523 to 2020-Jun-27.421396). Diameter approximately 0.015 km. from weighted mean H=26.80.
NEODyS1530207212.42e-11-11.66-11.660NEODyS: "Based on 49 optical observations (of which 1 are rejected as outliers) from 2020-06-12.326 to 2020-06-27.422."
2018 NLJPL Sentry15302064-2114223.774389e-05-4.85-5.380JPL: Computed at 09:05 Oct. 15th of 2018 Pacific time based on 36 observations spanning 103.82 days (2018-Jul-03.40294 to 2018-Oct-15.223076). Diameter approximately 0.028 km. from weighted mean H=25.39.
2016 AZ193JPL Sentry15302020-21144922.1894676e-06-6.21-7.150JPL: Computed at 14:28 April 6th of 2017 Pacific time based on 9 observations spanning .15930 days (2016-Jan-03.25638 to 2016-Jan-03.41568). Diameter approximately 0.016 km. from weighted mean H=26.62.

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 29 June '20

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

2102Grabbed MPEC 2020-M135 - 2020 MQ3 - see above
Grabbed MPEC 2020-M136 - 2020 MR3 - see above
1530Noted that JPL Sentry has updated its 2016 AZ193 risk assessment - see above
Noted that JPL Sentry has updated its 2018 NL risk assessment - see above
Noted that JPL Sentry has updated its 2020 LO risk assessment - see above
Noted that NEODyS has updated its 2020 LO risk assessment - see above
Noted that JPL Sentry has removed 2020 MA1 as an impact risk - see above
Noted that NEODyS has posted 2020 MA1 as an impact risk - see above
Noted that JPL Sentry has updated its 2020 MP1 risk assessment - see above
Noted that NEODyS has updated its 2020 MP1 risk assessment - see above
Grabbed MPEC 2020-M134 - Daily Orbit Update - see above