Contents  on 6 February '10

Resources:

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 6 February '10

The MPC's NEO Confirmation Page has 6 listings: 2 new, 4 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two new and four updated listings. Of these, four were "one nighters."

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object at Suno Observatory by Birtwhistle et al.

New MPECs  on 6 February '10

Minor Planet Electronic Circulars

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


<< DOU on 6 Feb. '10 >>  MPEC 2010-C17 - "07:19 UT" - Daily Orbit Update

Observers  on 6 February '10

Five observing facilities appear in today's MPEC.

CodeObserver / observatory
703Catalina Sky Survey (CSS) in Arizona, 5 in MPEC 2010-C17 -- 2010 BT3, 2010 AO60, 2007 UR3, 2006 BA148, 1994 CB
691Spacewatch 0.9m telescope in Arizona, 2 in MPEC 2010-C17 -- 172722, 1627
291Spacewatch 1.8m telescope in Arizona, 1 in MPEC 2010-C17 -- 2007 CN26
926Tenagra II Obs. in Arizona, 2 in MPEC 2010-C17 -- 2010 BH2, 2009 KL2
D96Tzec Maun Obs. Moorook in South Australia, 1 in MPEC 2010-C17 -- 2009 UN3
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 6 February '10

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.
The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Beginning Jan. 22nd, both are also posting impact solutions beyond 100 years for a few objects.
For the latest official risk assessments, and for explanations of the terminology, see the JPL NEO Program Sentry and NEODyS CLOMON (backup) risk pages.
0000NNN000

Object

Risk
Monitor
When
Noted
UTC
0000T0000
Year
Range

VI
#
000NN00
Prob
Cum
T0000
PS
Cum
T0000
PS
Max

T
S


Notes for Today's Latest Risk Assessments
2010 CAJPL Sentry01582016-21011224.8e-06-4.50-5.050JPL: "Analysis based on 17 observations spanning .59399 days (2010-Feb-05.19638 to 2010-Feb-05.79037)." Diameter approximately 0.042 km. from mean, weighted H=24.5.

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 6 February '10

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

1707Grabbed MPEC 2010-C17 - Daily Orbit Update - see above
0158Noted that JPL Sentry has posted 2010 CA as an impact risk - see above