Contents  on 12 February '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.

Radar Astrometry  on 12 February '20

Radar observation of one object

The JPL Solar System Dynamics Group Radar Astrometry database has added or updated the following small-body radar observing work:

Data update noted at 1700 UTC when the database was dated 12 Feb.

Photometry and some astrometry is needed for upcoming radar targets. See Arecibo and Goldstone schedules.

NEOCP Activity  on 12 February '20

The MPC's NEO Confirmation Page has 18 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had eighteen objects listed. Of these, seven were "one nighters." 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 12 February '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-C132 - "22:06 UT" - 2020 BX12

<< DOU on 12 February '20 >>  MPEC 2020-C131 - "12:05 UT" - Daily Orbit Update

Observers  on 12 February '20

Eleven observers appear in today's MPECs.

CodeObserver / observatory
251Arecibo in Puerto Rico, 1 in radar -- 163373
Z36Cancelada Obs., 1 in MPEC 2020-C131 -- 2020 BP14
160Castelmartini Obs. in Italy, 23 in MPEC 2020-C131 -- 2020 BE8, 2020 BE2, 2020 BD13, 2019 WB6, 2019 SH6, 2017 BP32, 2016 AX147, 2015 DJ155, 90075, 85628, 52768, 512245, 474223, 374188, 36284, 35107, 34613, 162038, 152931, 136582, 11066, 10145, 10115
W84%program code "%" (14) via DECam in Chile, 1 in MPEC 2020-C131 -- 2014 HG196
E89Geyserland Obs. in New Zealand, 3 in MPEC 2020-C131 -- 163373, 163243, 1627
J69North Obs. in England, 1 in MPEC 2020-C131 -- 2020 BZ11
Z80Northolt Branch Obs. in England, 3 in MPEC 2020-C131 -- 52768, 248926, 163373
F51Pan-STARRS 1 in Hawaii, 1 in MPEC 2020-C132 -- 2020 BX12
C95SATINO-1 in France, 1 in MPEC 2020-C131 -- 2008 EE5
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 2 in MPEC 2020-C131 -- 2020 BO8, 1995 CR
C51WISE in Earth polar orbit, 2 in MPEC 2020-C131 -- 2015 RH2, 267221
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 12 February '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.





Notes for Today's Latest Risk Assessments
2014 HG196JPL Sentry1625R E M O V E DJPL: Risk listing removed at 1334 UTC today
NEODyS1625R E M O V E D-

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 February '20

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

2231Grabbed MPEC 2020-C132 - 2020 BX12 - see above
1700Noted Radar Astrometry database update - see above
1625Noted that JPL Sentry has removed 2014 HG196 as an impact risk - see above
Noted that NEODyS has removed 2014 HG196 as an impact risk - see above
Grabbed MPEC 2020-C131 - Daily Orbit Update - see above