Contents  on 1 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 1 July '08

The MPC's NEO Confirmation Page has 5 listings: 5 updated

When last checked at 2357 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had five updated listings. Of these, three were "one nighters." So far The Tracking News has counted a total of thirteen 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 1 July '08

Minor Planet Electronic Circulars

As of last check at 2357 UTC, there have been six MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2008-N06 - "17:03 UT" - 2008 MV1

MPEC 2008-N05 - "15:16 UT" - 2008 MU1

MPEC 2008-N04 - "14:14 UT" - 2008 MR1

MPEC 2008-N03 - "14:11 UT" - 2008 MQ1

<< DOU on 1 July '08 >>  MPEC 2008-N02 - "06:06 UT" - Daily Orbit Update

MPEC 2008-N01 - "04:34 UT" - 2008 MP1

Observers  on 1 July '08

A total of 21 observing facilities appear in today's MPECs.

CodeObserver / observatory
B03Alter Satzberg Obs. in Austria, 1 in MPEC 2008-N01 -- 2008 MP1
I77CEAMIG-REA in Brazil, 1 in MPEC 2008-N01 -- 2008 MP1
703Catalina Sky Survey in Arizona, 1 in MPEC 2008-N03 -- 2008 MQ1
850Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2008-N03 -- 2008 MQ1
734Farpoint Obs. in Kansas, 3 in MPECs 2008-N02, 2008-N03 & 2008-N04 -- 2008 MR1, 2008 MQ1, 2008 MP1
J77Golden Hill Obs. in England, 1 in MPEC 2008-N01 -- 2008 MP1
651Grasslands Obs. in Arizona, 1 in MPEC 2008-N03 -- 2008 MQ1
J95Great Shefford Obs. in England, 4 in MPECs 2008-N01, 2008-N02 & 2008-N03 -- 2008 MQ1, 2008 MP1, 2008 JT35, 2008 JQ14
A17Guidestar Obs. in Germany, 1 in MPEC 2008-N01 -- 2008 MP1
704LINEAR in New Mexico, 5 in MPECs 2008-N02, 2008-N03 & 2008-N04 -- 2008 MR1, 2008 MQ1, 2001 XW266, 54789, 3288
B33Libbiano Obs. in Italy, 1 in MPEC 2008-N01 -- 2008 MP1
H01Magdalena Ridge Obs. (MRO) in New Mexico, 2 in MPECs 2008-N03 & 2008-N04 -- 2008 MR1, 2008 MQ1
B67Mirasteilas Obs. in Switzerland, 3 in MPEC 2008-N02 -- 2008 KD6, 65996, 136818
474Mt. John Obs. in New Zealand, 7 in MPECs 2008-N01, 2008-N02 & 2008-N05 -- 2008 MU1, 2008 MP1, 2008 KP, 2008 KB12, 2007 XF25, 2007 WB5, 2006 MD12
A13Naef Obs. in Switzerland, 3 in MPEC 2008-N02 -- 2008 KD6, 2006 SZ217, 87311
649Powell Obs. in Kansas, 1 in MPEC 2008-N01 -- 2008 MP1
E12Siding Spring Survey (SSS) in New South Wales, 5 in MPECs 2008-N02, 2008-N05 & 2008-N06 -- 2008 MV1, 2008 MU1, 2005 SE71, 154631, 1980
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2008-N01 -- 2008 MP1
6735Jim Young via Table Mtn. Obs. in southern California, 1 in MPEC 2008-N03 -- 2008 MQ1
F85Tiki Obs. in Tahiti, 2 in MPECs 2008-N05 & 2008-N06 -- 2008 MV1, 2008 MU1
A92Urseanu Obs. in Romania, 1 in MPEC 2008-N02 -- 2008 JT35
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 1 July '08

Summary Risk Table for Risk Assessments Updated Today   (last checks: JPL at 2140 and NEODyS at 2357 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 Sentry19052026-2093222.4e-07-4.93-5.410JPL: "Analysis based on 11 observations spanning .93636 days (2008-Jun-30.66182 to 2008-Jul-01.59818)." Diameter approximately 0.140 km. from mean, weighted H=21.9.

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 1 July '08

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

1905Noted that JPL Sentry has posted 2008 MV1 as an impact risk - see above
1713Grabbed MPEC 2008-N06 - 2008 MV1 - see above
1623Grabbed MPEC 2008-N05 - 2008 MU1 - see above
1430Grabbed MPEC 2008-N02 - Daily Orbit Update - see above
1429Grabbed MPEC 2008-N01 - 2008 MP1 - see above
Grabbed MPEC 2008-N03 - 2008 MQ1 - see above
Grabbed MPEC 2008-N04 - 2008 MR1 - see above