Contents  on 17 August '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 August '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 yesterday.

New MPECs  on 17 August '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 17 Aug. '08 >>  MPEC 2008-Q02 - "06:11 UT" - Daily Orbit Update

Observers  on 17 August '08

Eight observing facilities appear in today's MPEC.

CodeObserver / observatory
H55Astronomical Research Obs. (ARO) in Illinois, 27 in MPEC 2008-Q02 -- 2008 PF2, 2008 PF1, 2008 OX2, 2008 OX1, 2008 OS7, 2008 OM, 2008 OB9, 2008 NU, 2008 MU1, 2008 LW8, 2007 LL, 2005 UP156, 2005 QE30, 2005 OU1, 2005 BE2, 2004 SC56, 2004 SB56, 2004 EN20, 2003 XE11, 2003 RM, 2003 LO6, 2002 SS41, 2001 XW266, 2001 WA25, 2001 QL153, 2000 FJ10, 66063
J51Atlante Obs. in the Canary Islands, 4 in MPEC 2008-Q02 -- 65690, 8567, 4257, 3288
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2008-Q02 -- 2005 TU45
932McCarthy Obs. in Connecticut, 2 in MPEC 2008-Q02 -- 1994 AW1, 188452
B38Santa Mama Obs. in Italy, 2 in MPEC 2008-Q02 -- 90403, 188452
6735Jim Young via Table Mtn. Obs. in southern California, 2 in MPEC 2008-Q02 -- 2008 PV16, 2008 ON
H53Thompsonville Obs. in Illinois, 6 in MPEC 2008-Q02 -- 2004 SB56, 90403, 65690, 188452, 11398, 1980
F85Tiki Obs. in Tahiti, 1 in MPEC 2008-Q02 -- 2008 PR9
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 17 August '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 OB9JPL Sentry1501210625.1e-08-3.68-3.690JPL: "Analysis based on 28 observations spanning 17.828 days (2008-Jul-29.34054 to 2008-Aug-16.16871)." Diameter approximately 1.200 km. from mean, weighted H=17.3.

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 August '08

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

1501Noted that JPL Sentry has updated its 2008 OB9 risk assessment - see above
Grabbed MPEC 2008-Q02 - Daily Orbit Update - see above