Contents  on 7 July '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 July '20

The MPC's NEO Confirmation Page has 16 listings

When last checked at 2330 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had sixteen objects listed. Of these, one was a "one nighter." So far The Tracking News has counted a total of nineteen 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 July '20

Minor Planet Electronic Circulars

As of last check at 2330 UTC, there have been three MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2020-N22 - "18:24 UT" - Retraction of 2011 UH413 and 2013 QQ95


<< DOU on 7 July '20 >>  MPEC 2020-N21 - "12:02 UT" - Daily Orbit Update


MPEC 2020-N20 - "03:00 UT" - 2020 NB

Observers  on 7 July '20

A total of 27 observers appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 1 in MPEC 2020-N21 -- 2020 NB
T05ATLAS Haleakala in Hawaii, 5 in MPEC 2020-N21 -- 2015 FP332, 66008, 105140, 8566, 3752
T08ATLAS Mauna Loa in Hawaii, 19 in MPEC 2020-N21 -- 2010 JV153, 2010 EC135, 2004 LU3, 68950, 68348, 54401, 53435, 494706, 441987, 382503, 331471, 285567, 242450, 19764, 175189, 137199, 106538, 8014, 887
160Castelmartini Obs. in Italy, 9 in MPEC 2020-N21 -- 2017 QM18, 2010 EC135, 2003 BK47, 85275, 66391, 477885, 138847, 106589, 7977
V16Dark Sky New Mexico Obs. in New Mexico, 1 in MPEC 2020-N21 -- 85275
958Dax Obs. in France, 1 in MPEC 2020-N20 -- 2020 NB
K87Dettelbach Vineyard Obs. in Germany, 6 in MPEC 2020-N21 -- 2020 NA, 2010 EC135, 2006 NL, 2005 MR5, 2004 LU3, 2003 BK47
734Farpoint Obs. in Kansas, 3 in MPEC 2020-N21 -- 2020 KJ7, 2020 HO10, 2010 EC135
K83Forti Obs., 3 in MPECs 2020-N20 & 2020-N21 -- 2020 NB, 2005 MR5, 175189
203GiaGa Obs. in Italy, 1 in MPEC 2020-N20 -- 2020 NB
J95Great Shefford Obs. in England, 2 in MPECs 2020-N20 & 2020-N21 -- 2020 NB, 2020 ML
C401program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-N21 -- 8014
K93LCO Sutherland C in South Africa, 1 in MPEC 2020-N21 -- 2020 MU1
L52MASTER Tavrida, 1 in MPEC 2020-N21 -- 428086
J69North Obs. in England, 1 in MPEC 2020-N21 -- 2020 NA
Z80Northolt Branch Obs. in England, 7 in MPECs 2020-N20 & 2020-N21 -- 2020 NB, 2014 LW21, 2006 NL, 2004 LU3, 85275, 477885, 382503
F51Pan-STARRS 1 (PS1) in Hawaii, 4 in MPEC 2020-N21 -- 2017 MW7, 2011 SD25, 144861, 115052
F52Pan-STARRS 2 (PS2) in Hawaii, 2 in MPEC 2020-N21 -- 2003 OA3, 144861
V93Pin Oak Obs., 4 in MPEC 2020-N21 -- 2010 JV153, 2006 HB, 2004 LU3, 163348
6581Dave Balam via Plaskett 1.8m Telescope in British Columbia, 1 in MPEC 2020-N21 -- 2020 NA
L07Salvatore di Giacomo Obs., 1 in MPEC 2020-N21 -- 2020 NB
H36Sandlot Obs. in Kansas, 1 in MPEC 2020-N21 -- 2020 NB
C95SATINO-1 in France, 1 in MPEC 2020-N21 -- 23187
A16Tentlingen Obs. in Switzerland, 2 in MPEC 2020-N21 -- 85275, 441987
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-N21 -- 2014 UU192
C51WISE in Earth polar orbit, 1 in MPEC 2020-N21 -- 1997 WQ23
I41Zwicky Transient Facility (ZTF) in southern California, 2 in MPECs 2020-N20 & 2020-N21 -- 2020 NB, 382503
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 7 July '20

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS at 2330 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
2014 CH13JPL Sentry18032024-21161341.340693e-07-6.42-6.800JPL: Computed at 23:36 April 20th of 2017 Pacific time based on 16 observations spanning .96308 days (2014-Feb-10.36764 to 2014-Feb-11.33072). Diameter approximately 0.047 km. from weighted mean H=24.28.

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 July '20

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

1900Grabbed MPEC 2020-N22 - Retraction of 2011 UH413 and 2013 QQ95 - see above
1803Noted that JPL Sentry has updated its 2014 CH13 risk assessment - see above
1600Grabbed MPEC 2020-N21 - Daily Orbit Update - see above
0510Grabbed MPEC 2020-N20 - 2020 NB - see above