Contents  on 26 July '08


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 26 July '08

The MPC's NEO Confirmation Page has 4 listings: 4 updated

When last checked at 2358 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had four updated listings. Of these, one was a "one nighter." So far The Tracking News has counted a total of seven objects listed on the NEOCP at some point today.

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object by Birtwhistle et al. at Suno Observatory.

New MPECs  on 26 July '08

Minor Planet Electronic Circulars

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

MPEC 2008-O30 - "16:12 UT" - 2008 JS14

MPEC 2008-O29 - "14:20 UT" - 2003 JC11 = 2008 JL14

<< DOU on 26 July '08 >>  MPEC 2008-O28 - "06:07 UT" - Daily Orbit Update

Observers  on 26 July '08

Twelve observing facilities appear in today's MPECs.

CodeObserver / observatory
A74Bergen-Enkheim Obs. in Germany, 1 in MPEC 2008-O28 -- 2002 SS41
703Catalina Sky Survey in Arizona, 1 in MPEC 2008-O30 -- 2008 JS14
151Eschenberg Obs. in Switzerland, 3 in MPEC 2008-O28 -- 2008 MU1, 2005 RC34, 8567
F656Richard Miles in England via Faulkes Telescope North in Hawaii, 1 in MPEC 2008-O28 -- 2008 EL
E10Faulkes Telescope South in New South Wales, 1 in MPEC 2008-O28 -- 2008 EL
379Hamamatsu-Yuto Obs. in Japan, 1 in MPEC 2008-O28 -- 2005 RC34
844Los Molinos Obs. in Uruguay, 3 in MPEC 2008-O28 -- 2008 MZ, 2008 EZ97, 189008
B67Mirasteilas Obs. in Switzerland, 1 in MPEC 2008-O28 -- 2003 BT35
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 8 in MPEC 2008-O28 -- 2008 MU1, 2007 LL, 2005 RC34, 2003 XE11, 2003 OB4, 90403, 35107, 173689
E12Siding Spring Survey (SSS) in New South Wales, 12 in MPECs 2008-O28 & 2008-O30 -- 2008 NQ3, 2008 NO3, 2008 JS14, 2008 DV, 2008 BT18, 2007 MC4, 1994 AW1, 162510, 7092, 5836, 1864, 1685
691Spacewatch 0.9m telescope in Arizona, 1 in MPECs 2008-O28 & 2008-O29 -- 2008 JL14
F85Tiki Obs. in Tahiti, 1 in MPEC 2008-O28 -- 2008 JA8
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 26 July '08

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL 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.
Note that the time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090.
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
2008 NO3JPL Sentry1544209919.3e-09-5.22-5.220JPL: "Analysis based on 18 observations spanning 11.001 days (2008-Jul-14.36382 to 2008-Jul-25.36475)." Diameter approximately 0.620 km. from mean, weighted H=18.7.

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 26 July '08

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

1642Grabbed MPEC 2008-O30 - 2008 JS14 - see above
1544Noted that JPL Sentry has updated its 2008 NO3 risk assessment - see above
Grabbed MPEC 2008-O28 - Daily Orbit Update - see above
Grabbed MPEC 2008-O29 - 2003 JC11 = 2008 JL14 - see above