Contents  on 4 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 4 July '08

The MPC's NEO Confirmation Page has 2 listings: 2 updated

When last checked at 2358 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had two updated listings. So far The Tracking News has counted a total of three 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 4 July '08

Minor Planet Electronic Circulars

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

<< DOU on 4 July '08 >>  MPEC 2008-N13 - "06:07 UT" - Daily Orbit Update

MPEC 2008-N12 - "01:04 UT" - 2008 NX

Observers  on 4 July '08

Fifteen observing facilities appear in today's MPECs.

CodeObserver / observatory
J51Atlante Obs. in the Canary Islands, 3 in MPEC 2008-N13 -- 173689, 8567, 7889
A74Bergen-Enkheim Obs. in Germany, 1 in MPEC 2008-N13 -- 2006 GB
432Boambee Obs. in New South Wales, 5 in MPEC 2008-N13 -- 39572, 21088, 152942, 102873, 3554
703Catalina Sky Survey (CSS) in Arizona, 3 in MPEC 2008-N13 -- 65996, 16960, 7822
J77Golden Hill Obs. in England, 1 in MPEC 2008-N13 -- 2008 NX
J95Great Shefford Obs. in England, 7 in MPECs 2008-N12 & 2008-N13 -- 2008 NX, 2008 NU, 2008 NB, 2008 NA, 2008 MR1, 2008 MQ1, 2008 MP1
704LINEAR in New Mexico, 3 in MPEC 2008-N13 -- 173689, 164400, 162186
130Lumezzane Obs. in Italy, 2 in MPEC 2008-N13 -- 2008 JT35, 174050
560Madonna di Dossobuono Obs. in Italy, 2 in MPEC 2008-N13 -- 2008 HS3, 2005 TU45
B67Mirasteilas Obs. in Switzerland, 4 in MPEC 2008-N13 -- 2008 MP1, 2008 LV16, 2008 KD6, 162183
E12Siding Spring Survey (SSS) in New South Wales, 6 in MPEC 2008-N13 -- 2008 MH1, 2008 JT35, 2008 EZ97, 2004 CR2, 1996 FR3, 39572
645Sloan Digital Sky Survey (SDSS) in New Mexico, 2 in MPEC 2008-N13 -- 16816, 154555
691Spacewatch 0.9m telescope in Arizona, 2 in MPECs 2008-N12 & 2008-N13 -- 2008 NX, 154715
F85Tiki Obs. in Tahiti, 5 in MPECs 2008-N12 & 2008-N13 -- 2008 NX, 2008 MZ, 2008 MV1, 2008 MH1, 2008 MG1
H83Timberlake Obs. in Virginia, 2 in MPEC 2008-N13 -- 2007 LL, 154278
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 4 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 MV1JPL Sentry1511R E M O V E DJPL: Risk listing removed at 0850 UTC.
NEODyS1511R E M O V E D-

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 4 July '08

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

1511Noted that JPL Sentry has removed 2008 MV1 as an impact risk - see above
Noted that NEODyS has removed 2008 MV1 as an impact risk - see above
Grabbed MPEC 2008-N13 - Daily Orbit Update - see above
0355Grabbed MPEC 2008-N12 - 2008 NX - see above