Contents  on 11 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 11 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, fourteen were "one nighters." So far The Tracking News has counted a total of 36 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 11 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.


<< DOU on 11 June '20 >>  MPEC 2020-L42 - "12:02 UT" - Daily Orbit Update


MPEC 2020-L41 - "10:58 UT" - 2020 LH


MPEC 2020-L40 - "00:03 UT" - 2020 LG

Observers  on 11 June '20

A total of 25 observers appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 1 in MPEC 2020-L41 -- 2020 LH
T05ATLAS Haleakala in Hawaii, 21 in MPEC 2020-L42 -- 2020 LE, 2020 KP6, 2020 KB3, 2018 GX4, 2006 UD63, 85989, 85628, 68950, 68348, 495891, 494706, 415711, 396730, 374188, 349063, 175189, 138911, 8014, 6050, 3288, 887
T08ATLAS Mauna Loa in Hawaii, 9 in MPEC 2020-L42 -- 2015 FP332, 85184, 66008, 500094, 184990, 154278, 152756, 106589, 3752
4131Rob McNaught via Australian Natl. Univ. 1m telescope in New South Wales, 1 in MPEC 2020-L42 -- 85770
703Catalina Sky Survey (CSS) in Arizona, 8 in MPEC 2020-L42 -- 2020 LF, 2003 MS2, 85184, 184990, 159929, 154278, 108906, 106589
V06Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) in Arizona, 16 in MPEC 2020-L42 -- 2020 KZ4, 2020 KU3, 2020 KK5, 2020 JT, 2020 HY10, 2020 HX5, 2020 HM1, 2020 HH5, 2020 HE2, 2020 HB2, 2020 HB10, 2020 FR6, 2020 DL1, 2020 DG2, 2020 BP13, 2017 XB62
719Etscorn Obs. in New Mexico, 1 in MPEC 2020-L42 -- 455176
734Farpoint Obs. in Kansas, 5 in MPECs 2020-L41 & 2020-L42 -- 2020 LH, 2020 KP6, 2020 JQ2, 2010 JV153, 2010 EC135
J95Great Shefford Obs. in England, 1 in MPEC 2020-L42 -- 242191
Q622Marian Urbanik in Slovakia via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-L42 -- 2020 LD
1861program code 1 via Kitab Obs., 2 in MPEC 2020-L42 -- 2020 KB3, 331471
C401program code 1 via Kuban State Univ. Obs. in Russia, 2 in MPEC 2020-L42 -- 137199, 106589
181Makes Obs. in France, 1 in MPEC 2020-L42 -- 2020 LE
G96Mt. Lemmon Survey (MLS) in Arizona, 16 in MPECs 2020-L40, 2020-L41 & 2020-L42 -- 2020 LH, 2020 LG, 2020 JW1, 2020 FW3, 2015 FT118, 2008 WL60, 86450, 86067, 85184, 52750, 462041, 434326, 40267, 144861, 143637, 106589
F51Pan-STARRS 1 (PS1) in Hawaii, 8 in MPECs 2020-L40 & 2020-L42 -- 2020 LG, 2009 QD34, 2007 OY, 2004 FF29, 65909, 219527, 184990, 164400
F52Pan-STARRS 2 (PS2) in Hawaii, 4 in MPECs 2020-L40 & 2020-L42 -- 2020 LG, 2013 ON5, 54401, 18109
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 5 in MPEC 2020-L42 -- 2020 LE, 2020 KB3, 2010 EC135, 2004 LU3, 8014
654Pomona College Table Mtn. Obs. (PCTMO) in southern California, 3 in MPECs 2020-L40 & 2020-L42 -- 2020 LG, 2020 KR5, 2020 JU1
L18QOS Obs., 3 in MPEC 2020-L42 -- 2020 KB3, 184990, 106589
H36Sandlot Obs. in Kansas, 4 in MPEC 2020-L42 -- 2020 KR1, 2020 JW1, 2016 NO16, 2016 FY14
C95SATINO-1 in France, 1 in MPEC 2020-L42 -- 8013
I52Steward Obs. Mt. Lemmon Station in Arizona, 22 in MPECs 2020-L40, 2020-L41 & 2020-L42 -- 2020 LH, 2020 LG, 2020 LE, 2020 LD, 2020 LC, 2020 KY2, 2020 KT2, 2020 KR4, 2020 KR1, 2020 KQ7, 2020 KQ5, 2020 KO1, 2020 KN4, 2020 KN3, 2020 JX1, 2020 JV, 2020 JU, 2020 HO8, 2020 HC10, 2020 GN3, 2020 FW3, 2019 UO9
739Sunflower Obs., 1 in MPEC 2020-L42 -- 455176
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-L42 -- 495417
C51WISE in Earth polar orbit, 2 in MPEC 2020-L42 -- 2003 MS2, 184990
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 11 June '20

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS at 2359 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 LDJPL Sentry18202072-210925.203e-08-5.87-5.880JPL: Computed at 06:42 today Pacific time based on 85 observations spanning 3.7409 days (2020-Jun-07.441338 to 2020-Jun-11.18225). Diameter approximately 0.110 km. from weighted mean H=22.39.
NEODyS18202070-210931.13e-07-5.54-5.550NEODyS: "Based on 85 optical observations (of which 0 are rejected as outliers) from 2020-06-07.442 to 2020-06-11.183."
2020 KB3NEODyS1820R E M O V E D-
2016 TMJPL Sentry18202089-209322.092985e-07-8.26-8.260JPL: Computed at 10:23 April 13th of 2017 Pacific time based on 108 observations spanning 34.223 days (2016-Oct-02.13494 to 2016-Nov-05.357596). Diameter approximately 0.011 km. from weighted mean H=27.50.
2014 GQ17JPL Sentry18202052-2115815.16531835e-05-5.52-6.270JPL: Computed at 13:09 April 8th of 2017 Pacific time based on 92 observations spanning 25.019 days (2014-Apr-05.27668 to 2014-Apr-30.29565). Diameter approximately 0.013 km. from weighted mean H=27.09.

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 11 June '20

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

1820Noted that JPL Sentry has updated its 2014 GQ17 risk assessment - see above
Noted that JPL Sentry has updated its 2016 TM risk assessment - see above
Noted that NEODyS has removed 2020 KB3 as an impact risk - see above
Noted that JPL Sentry has updated its 2020 LD risk assessment - see above
Noted that NEODyS has updated its 2020 LD risk assessment - see above
Grabbed MPEC 2020-L41 - 2020 LH - see above
Grabbed MPEC 2020-L42 - Daily Orbit Update - see above
0009Grabbed MPEC 2020-L40 - 2020 LG - see above