Contents  on 20 August '07


The latest news: framed access (best), RSS news feed (flags updates), or redirection - Note: A/CC has a main Web site and a backup site.

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 this year 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.

Minor-Object News  on 20 August '07

Minor-Object Science  on 20 August '07

NEOCP Activity  on 20 August '07

The MPC's NEO Confirmation Page is currently empty

The NEOCP is currently empty and hasn't been noted by Major News as active yet today (last checked at 2354 UTC).

New MPECs  on 20 August '07

Minor Planet Electronic Circulars

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

<< DOU on 20 Aug. '07 >>  MPEC 2007-Q12 - "06:09 UT" - Daily Orbit Update

Observers  on 20 August '07

Five observing facilities appear in today's MPECs.

CodeObserver / observatory
046Klet Obs. in the Czech Republic, 7 in MPEC 2007-Q12 -- 2007 PV27, 2007 PU11, 2007 PP9, 2007 PF28, 2007 PB8, 2007 HE15, 2007 DK8
A24New Millennium Obs. in Italy, 6 in MPEC 2007-Q12 -- 2007 NC5, 2007 LR32, 2007 CK26, 86324, 85275, 145656
A97Stammersdorf Obs. in Austria, 1 in MPEC 2007-Q12 -- 2007 PF28
673Table Mtn. Obs. in southern California, 1 in MPEC 2007-Q12 -- 2007 PF28
198Wildberg Obs. in Germany, 3 in MPEC 2007-Q12 -- 2007 LR32, 2003 SW222, 2001 QC34

Impact Risk Monitoring  on 20 August '07

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.
Note that the time horizon for JPL is 100 years from today and for NEODyS is now 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
2007 PV27NEODyS18562031-2082261.48e-06-3.40-3.900NEODyS: "Based on 35 optical observations (of which 0 are rejected as outliers) from 2007/08/14.567 to 2007/08/18.943."
JPL14082031-2105221.9e-06-3.30-3.860JPL: "Analysis based on 35 observations spanning 4.3759 days (2007-Aug-14.56587 to 2007-Aug-18.94182)." Diameter approximately 0.280 km. from mean, weighted H=20.4.

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 an 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" for more about this.

Chronology  on 20 August '07

Times are UTC for when the items were noted or added by Major News.

1856Noted that NEODyS has updated its 2007 PV27 risk assessment - see above
1557Added news report, "Star Formation Newsletter"
1500Added MOS paper, "New Radio Sources and the Composite Structure of Component B in the Very Young Protostellar System IRAS 16293-2422" - see above
Added MOS paper, "The circumbinary disk of HD 98800 B: Evidence for disk warping" - see above
1409Grabbed MPEC 2007-Q12 - Daily Orbit Update - see above
1408Noted that JPL has updated its 2007 PV27 risk assessment - see above
The NEOCP has become empty