Contents  on 27 June '10


The latest A/CC news is available via framed access, RSS news feed RSS news feed, or redirection. - Note: A/CC has a main Web site and also a backup site with its own duplicate RSS news feed.

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. And use the all-up news archive to access news from any time since A/CC began in early 2002. To keep track of what's new each day, watch the Chronology section.

NEOCP Activity  on 27 June '10

The MPC's NEO Confirmation Page has 8 listings: 5 new, 3 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had five new and three updated listings. So far The Tracking News has counted a total of sixteen listings on the NEOCP at some point 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 27 June '10

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there has been one MPEC posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

<< DOU on 27 June '10 >>  MPEC 2010-M65 - "06:05 UT" - Daily Orbit Update

Observers  on 27 June '10

Eight observing facilities appear in today's MPEC.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 12 in MPEC 2010-M65 -- 2010 MP1, 2010 MF1, 2010 LM68, 2010 EV45, 2010 EC135, 2010 CL18, 2009 KD5, 2007 ML13, 2004 FX31, 242191, 241662, 241596
J04ESA Optical Ground Station in the Canary Islands, 1 in MPEC 2010-M65 -- 242211
J95Great Shefford Obs. in England, 1 in MPEC 2010-M65 -- 2010 MY1
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-M65 -- 2010 GH65
B67Mirasteilas Obs. in Switzerland, 1 in MPEC 2010-M65 -- 242191
6734Mike Hicks via Table Mtn. Obs. in southern California, 1 in MPEC 2010-M65 -- 2009 KD5
H53Thompsonville Obs. in Illinois, 2 in MPEC 2010-M65 -- 12923, 4055
I15Wishing Star Obs. in Rhode Island, 4 in MPEC 2010-M65 -- 2009 KD5, 2004 JX20, 242191, 4055
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 27 June '10

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL 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 is 100 years from today and for NEODyS is usually the year 2090. Both also post impact solutions beyond 100 years for a few special objects.
For the latest official risk assessments, and for explanations of the terminology, see the JPL NEO Program Sentry and NEODyS CLOMON (backup) risk pages.





Notes for Today's Latest Risk Assessments
2010 MF1JPL Sentry1447R E M O V E DJPL: Risk listing removed at 0849 UTC.

Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale

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 27 June '10

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

1447Noted that JPL Sentry has removed 2010 MF1 as an impact risk - see above
Grabbed MPEC 2010-M65 - Daily Orbit Update - see above