Contents  on 9 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 9 June '20

The MPC's NEO Confirmation Page has 24 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 24 objects listed. Of these, thirteen were "one nighters." So far The Tracking News has counted a total of 32 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 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-L37 - "16:50 UT" - 2020 LE


<< DOU on 9 June '20 >>  MPEC 2020-L36 - "12:39 UT" - Daily Orbit Update


MPEC 2020-L35 - "06:09 UT" - 2020 LD

Observers  on 9 June '20

A total of 39 observers appear in today's MPECs.

CodeObserver / observatory
U71AHS Obs., 1 in MPEC 2020-L37 -- 2020 LE
946Ametlla de Mar Obs. in Spain, 1 in MPEC 2020-L36 -- 25330
H21Astronomical Research Obs. Westfield in Illinois, 10 in MPECs 2020-L35, 2020-L36 & 2020-L37 -- 2020 LE, 2020 LD, 2020 KZ4, 2020 KN4, 2020 KD2, 85184, 477885, 331471, 184990, 137199
T05ATLAS Haleakala in Hawaii, 3 in MPEC 2020-L36 -- 86667, 138847, 106589
T08ATLAS Mauna Loa in Hawaii, 9 in MPECs 2020-L35, 2020-L36 & 2020-L37 -- 2020 LE, 2020 LD, 2004 LU3, 68348, 495615, 396730, 175189, 136874, 8014
703Catalina Sky Survey (CSS) in Arizona, 10 in MPECs 2020-L36 & 2020-L37 -- 2020 LE, 2001 QC34, 54401, 494706, 415711, 36183, 318050, 175189, 137170, 8014
V06Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) in Arizona, 11 in MPEC 2020-L36 -- 2020 KZ1, 2020 KY5, 2020 KX1, 2020 KU3, 2020 KK5, 2020 KB7, 2020 KA2, 2020 JH1, 2020 HW9, 2020 HV2, 2020 HT9
V94Cherokee Ridge Obs., 3 in MPEC 2020-L36 -- 137199, 136874, 8014
106Crni Vrh Obs. in Slovenia, 1 in MPEC 2020-L36 -- 433992
N31Eden Obs., 1 in MPEC 2020-L36 -- 331471
F65,program code "," (21) via Faulkes Telescope North in Hawaii, 1 in MPEC 2020-L35 -- 2020 LD
X31Galilei Obs., 2 in MPECs 2020-L35 & 2020-L37 -- 2020 LE, 2020 LD
E89Geyserland Obs. in New Zealand, 5 in MPECs 2020-L35, 2020-L36 & 2020-L37 -- 2020 LE, 2020 LD, 99935, 65733, 36183
E94Gisborne Obs. in New Zealand, 2 in MPECs 2020-L35 & 2020-L37 -- 2020 LE, 2020 LD
190Gissar Obs. in Tajikistan, 1 in MPEC 2020-L36 -- 52768
U76Glendora Obs., 1 in MPEC 2020-L36 -- 331471
H06iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2020-L36 -- 68278
H06%Ernesto Guido in Italy via iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2020-L35 -- 2020 LD
Q62iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-L35 -- 2020 LD
Q62[M. Suzuki in Japan via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-L35 -- 2020 LD
046Klet Obs. in the Czech Republic, 1 in MPEC 2020-L36 -- 25330
C401program code 1 via Kuban State Univ. Obs. in Russia, 2 in MPEC 2020-L36 -- 137199, 106589
K92LCO Sutherland B in South Africa, 1 in MPEC 2020-L36 -- 2020 KP6
X12Los Cabezones Obs., 1 in MPEC 2020-L35 -- 2020 LD
130Lumezzane Obs. in Italy, 14 in MPEC 2020-L36 -- 2017 ME, 2006 UD63, 85275, 85184, 68350, 477885, 363617, 331471, 184990, 175189, 162470, 142555, 137199, 136874
G96Mt. Lemmon Survey (MLS) in Arizona, 8 in MPEC 2020-L36 -- 2020 LC, 2018 EE4, 2017 MW7, 2008 LW16, 184990, 106589, 4257, 2101
F51Pan-STARRS 1 in Hawaii, 1 in MPEC 2020-L36 -- 85184
F52Pan-STARRS 2 (PS2) in Hawaii, 4 in MPEC 2020-L36 -- 86067, 85628, 276274, 106589
K63Pascoli Obs. in Italy, 1 in MPEC 2020-L37 -- 2020 LE
323Perth Obs. in Western Australia, 1 in MPEC 2020-L35 -- 2020 LD
165Piera Obs., 4 in MPEC 2020-L36 -- 68031, 523804, 247156, 138877
V93Pin Oak Obs., 4 in MPEC 2020-L36 -- 2010 EC135, 331471, 184990, 136874
D29Purple Mtn. Obs. Xuyi Station in China, 8 in MPEC 2020-L36 -- 85628, 65909, 494706, 175189, 145656, 136874, 3752, 1917
204Schiaparelli Obs. in Italy, 1 in MPEC 2020-L37 -- 2020 LE
W88#program code "#" (12) via Slooh.com Chile Obs. in Chile, 1 in MPEC 2020-L37 -- 2020 LE
W34Squirrel Valley Obs. in North Carolina, 1 in MPEC 2020-L37 -- 2020 LE
I52Steward Obs. Mt. Lemmon Station in Arizona, 23 in MPECs 2020-L35, 2020-L36 & 2020-L37 -- 2020 LE, 2020 LD, 2020 KY5, 2020 KY2, 2020 KR1, 2020 KQ7, 2020 KQ5, 2020 KO3, 2020 KN4, 2020 KN1, 2020 KM3, 2020 KJ7, 2020 KD2, 2020 KB3, 2020 KA5, 2020 JX1, 2020 JW1, 2020 JU, 2020 HS10, 2020 HP8, 2020 HO10, 2020 HG6, 2020 FW3
Q38Swan Hill Obs., 2 in MPECs 2020-L35 & 2020-L37 -- 2020 LE, 2020 LD
718Wiggins Obs. in Utah, 1 in MPEC 2020-L37 -- 2020 LE
I15Wishing Star Obs. in Rhode Island, 7 in MPEC 2020-L36 -- 86667, 331471, 184990, 175189, 137199, 136874, 106589
N88Xingming Obs. #3, 2 in MPECs 2020-L35 & 2020-L37 -- 2020 LE, 2020 LD
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 9 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 LDJPL Sentry16302109-210917.119e-09-6.73-6.730JPL: Computed at 00:41 today Pacific time based on 68 observations spanning 1.7283 days (2020-Jun-07.441338 to 2020-Jun-09.16961). Diameter approximately 0.110 km. from weighted mean H=22.38.
NEODyS16302057-211689.23e-08-5.61-5.820NEODyS: "Based on 68 optical observations (of which 0 are rejected as outliers) from 2020-06-07.442 to 2020-06-09.170."
2020 KB3JPL Sentry16302052-205211.623e-08-7.45-7.450JPL: Computed at 07:34 today Pacific time based on 43 observations spanning 19.936 days (2020-May-20.375682 to 2020-Jun-09.31216). Diameter approximately 0.045 km. from weighted mean H=24.40.
NEODyS1630207217.44e-10-9.01-9.010NEODyS: "Based on 43 optical observations (of which 0 are rejected as outliers) from 2020-05-20.376 to 2020-06-09.313."
2020 HJ6NEODyS1630R E M O V E D-
2020 BBNEODyS1630R E M O V E D-
2020 AY1NEODyS1630210313.06e-11-11.03-11.030NEODyS: "Based on 130 optical observations (of which 4 are rejected as outliers) from 2020-01-05.242 to 2020-02-19.255."
2019 VANEODyS16302090-211224.74e-07-8.24-8.370NEODyS: "Based on 25 optical observations (of which 1 are rejected as outliers) from 2019-11-01.137 to 2019-11-02.412."
2019 RT3NEODyS16302087-211887.09e-07-6.55-6.750NEODyS: "Based on 132 optical observations (of which 2 are rejected as outliers) from 2019-09-11.605 to 2019-11-18.194."
2019 PGNEODyS16302092-2115121.97e-06-6.42-6.550NEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2019-08-04.395 to 2019-08-20.404."
2019 LW4JPL Sentry16302083-2115380.0010444883964-4.28-4.310JPL: Computed at 05:42 June 17th of 2019 Pacific time based on 64 observations spanning 7.7692 days (2019-May-31.53752 to 2019-Jun-08.306767). Diameter approximately 0.012 km. from weighted mean H=27.28.
2018 WE1NEODyS1630207413.68e-11-10.98-10.980NEODyS: "Based on 96 optical observations (of which 2 are rejected as outliers) from 2018-11-26.470 to 2018-12-14.366."
2016 UR36NEODyS16302097-211652.93e-08-8.82-9.030NEODyS: "Based on 34 optical observations (of which 0 are rejected as outliers) from 2016-10-26.286 to 2016-10-30.209."
2014 UX34NEODyS1630208413.65e-09-6.92-6.920NEODyS: "Based on 62 optical observations (of which 0 are rejected as outliers) from 2014-10-23.332 to 2014-11-29.257."
2012 XL55JPL Sentry16302066-206612.340e-08-8.36-8.360JPL: Computed at 13:48 April 12th of 2017 Pacific time based on 16 observations spanning 1.9794 days (2012-Dec-08.18943 to 2012-Dec-10.16884). Diameter approximately 0.013 km. from weighted mean H=27.05.
2011 ES4NEODyS16302031-21151286.65e-05-4.68-5.160NEODyS: "Based on 45 optical observations (of which 3 are rejected as outliers) from 2011-03-02.199 to 2011-03-06.236."
2010 RF12NEODyS16302095-21181237.0e-02-3.20-3.20NEODyS: "Based on 328 optical observations (of which 1 are rejected as outliers) from 2010-09-03.494 to 2010-09-08.516."

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 June '20

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

1711Grabbed MPEC 2020-L37 - 2020 LE - see above
1630Noted that NEODyS has updated its 2010 RF12 risk assessment - see above
Noted that NEODyS has updated its 2011 ES4 risk assessment - see above
Noted that JPL Sentry has updated its 2012 XL55 risk assessment - see above
Noted that NEODyS has updated its 2014 UX34 risk assessment - see above
Noted that NEODyS has updated its 2016 UR36 risk assessment - see above
Noted that NEODyS has updated its 2018 WE1 risk assessment - see above
Noted that JPL Sentry has updated its 2019 LW4 risk assessment - see above
Noted that NEODyS has updated its 2019 PG risk assessment - see above
Noted that NEODyS has updated its 2019 RT3 risk assessment - see above
Noted that NEODyS has updated its 2019 VA risk assessment - see above
Noted that NEODyS has updated its 2020 AY1 risk assessment - see above
Noted that NEODyS has removed 2020 BB as an impact risk - see above
Noted that NEODyS has removed 2020 HJ6 as an impact risk - see above
Noted that JPL Sentry has updated its 2020 KB3 risk assessment - see above
Noted that NEODyS has updated its 2020 KB3 risk assessment - see above
Noted that JPL Sentry has posted 2020 LD as an impact risk - see above
Noted that NEODyS has posted 2020 LD as an impact risk - see above
Grabbed MPEC 2020-L35 - 2020 LD - see above
Grabbed MPEC 2020-L36 - Daily Orbit Update - see above