Contents  on 17 October '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 17 October '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 2358 UTC). It was last noted active on October 15th.

New MPECs  on 17 October '08

Minor Planet Electronic Circulars

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

<< DOU on 17 Oct. '08 >>  MPEC 2008-U02 - "06:11 UT" - Daily Orbit Update

Observers  on 17 October '08

Seven observing facilities appear in today's MPEC.

CodeObserver / observatory
B37Ametlla del Valles Obs. in Spain, 2 in MPEC 2008-U02 -- 39572, 190135
H55Astronomical Research Obs. (ARO) in Illinois, 9 in MPEC 2008-U02 -- 2008 TR2, 2008 TK, 2008 TF, 2008 SW1, 2008 SV7, 2008 SR, 2008 SQ7, 2008 SP7, 2008 MZ
703Catalina Sky Survey in Arizona, 1 in MPEC 2008-U02 -- 2008 TK
448Desert Moon Obs. in New Mexico, 4 in MPEC 2008-U02 -- 2008 TD4, 2008 TA1, 2008 SC85, 2008 RG98
J95Great Shefford Obs. in England, 1 in MPEC 2008-U02 -- 2008 TK9
291Spacewatch 1.8m telescope in Arizona, 8 in MPEC 2008-U02 -- 2008 TZ3, 2008 SV11, 2008 SO, 2008 SH82, 2008 RV, 2008 RM98, 2008 RG98, 1998 VO
H53Thompsonville Obs. in Illinois, 4 in MPEC 2008-U02 -- 39572, 16960, 4179, 1620
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 17 October '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 TZ3JPL Sentry1450R E M O V E DJPL: Risk listing removed at 0850 UTC.
NEODyS1450R E M O V E D-
2008 SH82JPL Sentry1450R E M O V E DJPL: Risk listing removed at 0850 UTC.

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 17 October '08

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

1451Grabbed MPEC 2008-U02 - Daily Orbit Update - see above
1450Noted that JPL Sentry has removed 2008 SH82 as an impact risk - see above
Noted that JPL Sentry has removed 2008 TZ3 as an impact risk - see above
Noted that NEODyS has removed 2008 TZ3 as an impact risk - see above