Contents  on 23 June '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 23 June '08

The MPC's NEO Confirmation Page is currently empty

The NEOCP is currently empty and hasn't been noted by The Tracking News as being active yet today (checked at 2357 UTC). It was last noted active on June 18th.

New MPECs  on 23 June '08

Minor Planet Electronic Circulars

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

<< DOU on 23 June '08 >>  MPEC 2008-M24 - "06:06 UT" - Daily Orbit Update

Observers  on 23 June '08

Eight observing facilities appear in today's MPEC.

CodeObserver / observatory
J51Atlante Obs. in the Canary Islands, 1 in MPEC 2008-M24 -- 2005 TU45
A81Balzaretto Obs. in Italy, 4 in MPEC 2008-M24 -- 2008 JT35, 2000 AD205, 35107, 137170
B09Capannoli Obs. in Italy, 3 in MPEC 2008-M24 -- 2008 JT35, 2007 LL, 2005 NB7
J95Great Shefford Obs. in England, 1 in MPEC 2008-M24 -- 2008 LA
442Gualba Obs. in Spain, 1 in MPEC 2008-M24 -- 2000 AD205
B67Mirasteilas Obs. in Switzerland, 2 in MPEC 2008-M24 -- 2008 JT35, 7889
118Modra Obs. in Slovakia, 1 in MPEC 2008-M24 -- 35107
B49Paus Obs. in Spain, 1 in MPEC 2008-M24 -- 2008 HE66
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 23 June '08

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL 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 LANEODyS14522058-207967.02e-05-3.33-3.330NEODyS: "Based on 72 optical observations (of which 0 are rejected as outliers) from 2008/06/01.170 to 2008/06/22.949."
JPL Sentry14512058-210747.2e-05-3.32-3.320JPL: "Analysis based on 72 observations spanning 21.779 days (2008-Jun-01.16922 to 2008-Jun-22.948)." Diameter approximately 0.078 km. from mean, weighted H=23.2.

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 23 June '08

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

1452Noted that NEODyS has updated its 2008 LA risk assessment - see above
1451Noted that JPL Sentry has updated its 2008 LA risk assessment - see above
Grabbed MPEC 2008-M24 - Daily Orbit Update - see above