Contents  on 10 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 10 March '20

The MPC's NEO Confirmation Page has 7 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had seven objects listed. Of these, four were "one nighters." So far The Tracking News has counted a total of eight 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 10 March '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-E40 - "15:00 UT" - 2012 FY23


MPEC 2020-E39 - "14:47 UT" - 2019 GJ23


<< DOU on 10 March '20 >>  MPEC 2020-E38 - "12:06 UT" - Daily Orbit Update

Observers  on 10 March '20

Twelve observers appear in today's MPECs.

CodeObserver / observatory
T05ATLAS Haleakala in Hawaii, 3 in MPEC 2020-E38 -- 315098, 163243, 4954
T08ATLAS Mauna Loa in Hawaii, 13 in MPEC 2020-E38 -- 2020 DR2, 90075, 85628, 52768, 40267, 374188, 36284, 34613, 137064, 11405, 5626, 2102, 1627
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 54 in MPEC 2020-E38 -- 2020 DY1, 2020 DX, 2020 DV1, 2020 DU1, 2020 DT1, 2020 DT, 2020 DQ, 2020 DN1, 2020 DJ1, 2020 DA2, 2020 CM2, 2020 CM1, 2020 CL1, 2020 CG1, 2020 CA3, 2020 BY6, 2020 BX14, 2020 BX10, 2020 BU5, 2020 BT12, 2020 BO8, 2020 BO11, 2020 BN9, 2020 BN8, 2020 BN10, 2020 BL9, 2020 BL8, 2020 BL5, 2020 BJ5, 2020 BD15, 2020 BC9, 2020 BA8, 2020 BA6, 2020 AZ2, 2020 AN3, 2020 AJ, 2019 YY5, 2019 YW3, 2019 YP4, 2019 YN6, 2019 YM3, 2019 YL1, 2019 YK, 2019 YH4, 2019 XZ2, 2019 XB2, 2019 WF3, 2019 UO, 2019 UJ15, 2019 UC4, 2019 TH7, 2019 SN10, 2017 GK4, 2016 EE157
W84!program code "!" (10) via DECam in Chile, 1 in MPEC 2020-E39 -- 2019 GJ23
W84&program code "&" (15) via DECam in Chile, 1 in MPEC 2020-E38 -- 2019 GF1
W93Korea Microlensing Telescope Network CTIO in Chile, 1 in MPEC 2020-E39 -- 2019 GJ23
C401program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-E38 -- 52768
Z80Northolt Branch Obs. in England, 4 in MPEC 2020-E38 -- 65690, 52768, 448818, 154993
F52Pan-STARRS 2 (PS2) in Hawaii, 2 in MPEC 2020-E38 -- 2017 DS36, 153267
071Rhozen Obs. in Bulgaria, 1 in MPEC 2020-E38 -- 164207
C95SATINO-1 in France, 1 in MPEC 2020-E38 -- 2017 NQ6
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-E40 -- 2012 FY23
C51WISE in Earth polar orbit, 1 in MPEC 2020-E38 -- 2004 FF29
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 10 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 DR2JPL Sentry15302074-208121.471782e-07-3.68-3.690JPL: Computed at 06:31 today Pacific time based on 209 observations spanning 18.209 days (2020-Feb-20.19345 to 2020-Mar-09.402019). Diameter approximately 0.590 km. from weighted mean H=18.80.
NEODyS1530208114.63e-08-4.20-4.20NEODyS: "Based on 216 optical observations (of which 2 are rejected as outliers) from 2020-02-20.194 to 2020-03-09.403."
2020 DJ1JPL Sentry15302083-2117311.88620534e-05-4.86-5.150JPL: Computed at 06:35 today Pacific time based on 21 observations spanning 2.8716 days (2020-Feb-17.24178 to 2020-Feb-20.11335). Diameter approximately 0.036 km. from weighted mean H=24.88.
NEODyS15302083-2118691.65e-05-4.94-5.390NEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2020-02-17.243 to 2020-02-20.114."
2020 AN3JPL Sentry15302106-210617.112e-08-5.04-5.040JPL: Computed at 06:30 today Pacific time based on 154 observations spanning 113.95 days (2019-Nov-09.147003 to 2020-Mar-02.1012). Diameter approximately 0.280 km. from weighted mean H=20.45.
NEODyS1530210611.27e-07-4.80-4.80NEODyS: "Based on 163 optical observations (of which 3 are rejected as outliers) from 2019-11-09.148 to 2020-03-02.102."
2019 QS8JPL Sentry2300R E M O V E DJPL
2019 OF5JPL Sentry2300R E M O V E DJPL
2009 VZ39JPL Sentry15302020-21169006.979767e-06-6.31-7.870JPL: Computed at 11:17 April 7th of 2017 Pacific time based on 8 observations spanning .04342 days (2009-Nov-10.27204 to 2009-Nov-10.31546). Diameter approximately 0.009 km. from weighted mean H=27.89.
2008 EM68NEODyS15302020-21183951.54e-06-6.72-7.380NEODyS: "Based on 12 optical observations (of which 0 are rejected as outliers) from 2008-03-08.252 to 2008-03-08.363."
2008 EL68JPL Sentry15302020-21135933.09334819e-05-5.53-6.210JPL: 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 10 March '20

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

2300Noted that JPL Sentry has removed 2019 OF5 as an impact risk - see above
Noted that JPL Sentry has removed 2019 QS8 as an impact risk - see above
1530Noted that JPL Sentry has updated its 2008 EL68 risk assessment - see above
Noted that NEODyS has updated its 2008 EM68 risk assessment - see above
Noted that JPL Sentry has updated its 2009 VZ39 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
Noted that JPL Sentry has updated its 2020 DJ1 risk assessment - see above
Noted that NEODyS has updated its 2020 DJ1 risk assessment - see above
Noted that JPL Sentry has updated its 2020 DR2 risk assessment - see above
Noted that NEODyS has updated its 2020 DR2 risk assessment - see above
Grabbed MPEC 2020-E38 - Daily Orbit Update - see above
Grabbed MPEC 2020-E39 - 2019 GJ23 - see above
Grabbed MPEC 2020-E40 - 2012 FY23 - see above