Contents  on 14 May '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 14 May '08

The MPC's NEO Confirmation Page has 7 listings: 7 updated

When last checked at 2354 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had seven updated listings. Of these, five were "one nighters." So far The Tracking News has counted a total of eleven 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 14 May '08

Minor Planet Electronic Circulars

As of last check at 2354 UTC, there have been two MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2008-J71 - "16:32 UT" - 2008 JM26

<< DOU on 14 May '08 >>  MPEC 2008-J70 - "06:08 UT" - Daily Orbit Update

Observers  on 14 May '08

Sixteen observing facilities appear in today's MPECs.

CodeObserver / observatory
H55Astronomical Research Obs. (ARO) in Illinois, 13 in MPEC 2008-J70 -- 2008 JV19, 2008 JS19, 2008 JO14, 2008 JN20, 2008 JL24, 2008 GU3, 2008 GG2, 2008 GE110, 2008 GC110, 2008 EX84, 2008 EV5, 2008 DY, 2004 OB
B66Casasco Obs., 1 in MPEC 2008-J70 -- 2005 NB7
703Catalina Sky Survey (CSS) in Arizona, 2 in MPEC 2008-J70 -- 68348, 1866
E10Faulkes Telescope South in New South Wales, 1 in MPEC 2008-J70 -- 2008 JP24
B21Gaisberg Obs. in Austria, 1 in MPEC 2008-J71 -- 2008 JM26
J95Great Shefford Obs. in England, 1 in MPEC 2008-J70 -- 2008 JL24
704LINEAR in New Mexico, 4 in MPEC 2008-J70 -- 85628, 68278, 5626, 4503
B67Mirasteilas Obs. in Switzerland, 1 in MPEC 2008-J70 -- 137170
118Modra Obs. in Slovakia, 1 in MPEC 2008-J70 -- 2008 AE
G96Mt. Lemmon Survey (MLS) in Arizona, 6 in MPECs 2008-J70 & 2008-J71 -- 2008 JR14, 2008 JO20, 2008 JM26, 2006 HR29, 34613, 152964
261&Rob Matson in southern California using the Palomar Digitized Sky Survey in southern California, 1 in MPEC 2008-J70 -- 2008 EC69
A53Peschiera del Garda Obs. in Italy, 2 in MPEC 2008-J70 -- 2008 HS3, 2007 VQ4
E12Siding Spring Survey (SSS) in New South Wales, 3 in MPEC 2008-J70 -- 2006 HR29, 85839, 1980
510Siegen Obs. in Germany, 3 in MPEC 2008-J70 -- 2008 DE, 2007 VQ4, 1866
691Spacewatch 0.9m telescope in Arizona, 2 in MPEC 2008-J70 -- 2004 OB, 2002 AF29
291Spacewatch 1.8m telescope in Arizona, 3 in MPECs 2008-J70 & 2008-J71 -- 2008 JM26, 2008 JL24, 2008 JG
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 14 May '08

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2354 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 JL24NEODyS1359206818.73e-09-10.52-10.520NEODyS: "Based on 57 optical observations (of which 0 are rejected as outliers) from 2008/05/11.254 to 2008/05/14.211."
JPL Sentry1358209116.0e-07-8.83-8.830JPL: "Analysis based on 57 observations spanning 2.9565 days (2008-May-11.25353 to 2008-May-14.21001)." Diameter approximately 0.004 km. from mean, weighted H=29.5.

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 14 May '08

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

1658Grabbed MPEC 2008-J71 - 2008 JM26 - see above
1359Noted that NEODyS has updated its 2008 JL24 risk assessment - see above
1358Noted that JPL Sentry has updated its 2008 JL24 risk assessment - see above
Grabbed MPEC 2008-J70 - Daily Orbit Update - see above