Contents  on 12 March '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 12 March '20

The MPC's NEO Confirmation Page has 11 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had eleven objects listed. Of these, eight were "one nighters." So far The Tracking News has counted a total of twelve 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 12 March '20

Minor Planet Electronic Circulars

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


MPEC 2020-E44 - "18:14 UT" - 2020 EN


<< DOU on 12 March '20 >>  MPEC 2020-E43 - "12:06 UT" - Daily Orbit Update

Observers  on 12 March '20

A total of 21 observers appear in today's MPECs.

CodeObserver / observatory
834AAAA Buenos Aires Obs. in Argentina, 1 in MPEC 2020-E43 -- 96744
R57Aorangi Iti Obs. in New Zealand, 3 in MPEC 2020-E43 -- 2020 DT3, 2020 CL1, 2017 BE32
H21Astronomical Research Obs. Westfield in Illinois, 8 in MPEC 2020-E43 -- 2020 DC5, 2020 BP13, 2009 OS5, 52768, 515010, 416584, 40267, 162161
T05ATLAS Haleakala in Hawaii, 11 in MPEC 2020-E43 -- 2020 DX, 2020 BP14, 40267, 36284, 35107, 30825, 18172, 11405, 5626, 4450, 1627
T08ATLAS Mauna Loa in Hawaii, 7 in MPEC 2020-E43 -- 2000 BO28, 315098, 276732, 163243, 138847, 10115, 1685
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 56 in MPEC 2020-E43 -- 2020 EC, 2020 DZ2, 2020 DY3, 2020 DY1, 2020 DV2, 2020 DU4, 2020 DT4, 2020 DT3, 2020 DR2, 2020 DQ3, 2020 DQ, 2020 DP4, 2020 DN, 2020 DJ4, 2020 DJ3, 2020 DH4, 2020 DG2, 2020 DE3, 2020 DB4, 2020 CU1, 2020 CN2, 2020 CL1, 2020 CB3, 2020 CA3, 2020 BZ12, 2020 BX6, 2020 BX10, 2020 BW2, 2020 BU12, 2020 BT12, 2020 BS12, 2020 BP13, 2020 BO5, 2020 BH2, 2020 BD15, 2020 BD14, 2020 BC9, 2020 BA4, 2020 AZ2, 2020 AW2, 2020 AN3, 2020 AK, 2019 YW3, 2019 YP4, 2019 YL1, 2019 YK, 2019 YH4, 2019 XZ2, 2019 XC1, 2019 XB2, 2019 WF3, 2019 UC4, 2019 TH7, 2017 RE110, 2017 GK4, 2016 RF40
K73Gravina Obs. in Italy, 3 in MPEC 2020-E43 -- 52768, 448818, 40267
J95Great Shefford Obs. in England, 1 in MPEC 2020-E44 -- 2020 EN
695^Spacewatch via Kitt Peak Natl. Obs. in Arizona, 1 in MPEC 2020-E44 -- 2020 EN
C401program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-E43 -- 52768
G96Mt. Lemmon Survey in Arizona, 1 in MPEC 2020-E44 -- 2020 EN
F52Pan-STARRS 2 in Hawaii, 1 in MPEC 2020-E43 -- 2013 CL89
A53Peschiera del Garda Obs. in Italy, 2 in MPEC 2020-E43 -- 2020 BP14, 2019 XG1
586Pic du Midi Obs. in France, 2 in MPEC 2020-E43 -- 2020 DT3, 52768
D29Purple Mtn. Obs. Xuyi Station in China, 4 in MPEC 2020-E43 -- 144861, 8566, 5626, 1627
233San Vito Obs. in Italy, 3 in MPEC 2020-E43 -- 52768, 36284, 1627
H36Sandlot Obs. in Kansas, 1 in MPEC 2020-E44 -- 2020 EN
C95SATINO-1 in France, 1 in MPEC 2020-E43 -- 2018 BP
204Schiaparelli Obs. in Italy, 1 in MPEC 2020-E44 -- 2020 EN
I52Steward Obs. Mt. Lemmon Station in Arizona, 1 in MPEC 2020-E44 -- 2020 EN
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 2 in MPEC 2020-E43 -- 2020 CM1, 2019 AS5
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 12 March '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 AN3JPL Sentry15502106-210613.692e-08-5.32-5.320JPL: Computed at 06:30 today Pacific time based on 160 observations spanning 113.95 days (2019-Nov-09.147003 to 2020-Mar-02.1012). Diameter approximately 0.280 km. from weighted mean H=20.44.
NEODyS1550210617.71e-08-5.02-5.020NEODyS: "Based on 169 optical observations (of which 3 are rejected as outliers) from 2019-11-09.148 to 2020-03-02.102."
2019 AS5JPL Sentry15502085-208513.354e-09-12.20-12.20JPL: Computed at 06:32 today Pacific time based on 20 observations spanning 3.1288 days (2019-Jan-08.35867 to 2019-Jan-11.487437). Diameter approximately 0.001 km. from weighted mean H=32.34.
NEODyS15502085-211041.41e-08-11.67-11.890NEODyS: "Based on 20 optical observations (of which 0 are rejected as outliers) from 2019-01-08.359 to 2019-01-11.488."
2008 EM68JPL Sentry15502020-211610891.05924711e-05-5.64-6.250JPL: 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.
2008 EL68JPL Sentry15502020-21135923.06705819e-05-5.56-6.210JPL: Computed at 11:57 April 9th of 2017 Pacific time based on 8 observations spanning .07124 days (2008-Mar-06.40768 to 2008-Mar-06.47892). Diameter approximately 0.009 km. from weighted mean H=27.92.

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 12 March '20

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

1839Grabbed MPEC 2020-E44 - 2020 EN - see above
1550Noted that JPL Sentry has updated its 2008 EL68 risk assessment - see above
Noted that JPL Sentry has updated its 2008 EM68 risk assessment - see above
Noted that JPL Sentry has updated its 2019 AS5 risk assessment - see above
Noted that NEODyS has updated its 2019 AS5 risk assessment - see above
Noted that JPL Sentry has updated its 2020 AN3 risk assessment - see above
Noted that NEODyS has updated its 2020 AN3 risk assessment - see above
Grabbed MPEC 2020-E43 - Daily Orbit Update - see above