Contents  on 18 November '10


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 18 November '10

The MPC's NEO Confirmation Page has 3 listings: 3 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had three updated listings. Of these, one was a "one nighter."

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 18 November '10

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there have been two MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2010-W10 - "15:41 UT" - Brian Marsden

<< DOU on 18 Nov. '10 >>  MPEC 2010-W09 - "07:13 UT" - Daily Orbit Update

Observers  on 18 November '10

Fifteen observers appear in today's MPEC.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 22 in MPEC 2010-W09 -- 2010 WB, 2010 VZ11, 2010 VY71, 2010 VY190, 2010 VX139, 2010 VW98, 2010 VW194, 2010 VW139, 2010 VT11, 2010 VS21, 2010 VQ98, 2010 VN98, 2010 VJ139, 2010 VE139, 2010 VD99, 2010 VD139, 2010 VB140, 2010 UX6, 2010 UE51, 2010 TV149, 2010 LR68, 2010 LO97
703Catalina Sky Survey (CSS) in Arizona, 5 in MPEC 2010-W09 -- 68278, 48603, 36236, 175706, 11405
379Hamamatsu-Yuto Obs. in Japan, 4 in MPEC 2010-W09 -- 2010 SC41, 2002 VE68, 100926, 5869
511Haute Provence Obs. in Germany, 7 in MPEC 2010-W09 -- 2010 WA, 2010 VY190, 2010 VW139, 2010 VN98, 2010 UE51, 2010 SC41, 2010 LO97
046Klet Obs. in the Czech Republic, 1 in MPEC 2010-W09 -- 2010 VK139
704LINEAR in New Mexico, 7 in MPEC 2010-W09 -- 2010 VZ139, 2010 VY190, 2010 VN65, 2010 TX168, 2010 LF86, 1998 HG49, 88959
J75La Sagra Obs. in Spain, 1 in MPEC 2010-W09 -- 250162
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-W09 -- 2010 VU11
G96Mt. Lemmon Survey (MLS) in Arizona, 3 in MPEC 2010-W09 -- 2005 UH6, 142464, 10115
H36Sandlot Obs. in Kansas, 1 in MPEC 2010-W09 -- 2010 VZ139
204Schiaparelli Obs. in Italy, 4 in MPEC 2010-W09 -- 2010 VO1, 2010 VE, 2010 VB, 2010 UD8
E12Siding Spring Survey in New South Wales, 1 in MPEC 2010-W09 -- 2010 VK139
291Spacewatch 1.8m telescope in Arizona, 11 in MPEC 2010-W09 -- 2010 VU98, 2010 VJ, 2010 VG1, 2010 VD99, 2010 VA76, 2010 VA12, 2010 TM4, 2010 SO16, 2010 SA17, 2010 MW, 2004 BV1
H10Tzec Maun Obs. Mayhill in New Mexico, 1 in MPEC 2010-W09 -- 2010 VY190
C51WISE in Earth polar orbit, 2 in MPEC 2010-W09 -- 2000 QN130, 247156
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 18 November '10

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2359 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. Both also post impact solutions beyond 100 years for a few special 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.





Notes for Today's Latest Risk Assessments
2010 VW194JPL Sentry15142042-2109285.9e-05-5.20-5.780JPL: "Analysis based on 14 observations spanning 2.0158 days (2010-Nov-15.34197 to 2010-Nov-17.357784)." Diameter approximately 0.017 km. from mean, weighted H=26.5.
NEODyS15142042-2089164.22e-05-5.29-5.80NEODyS: "Based on 14 optical observations (of which 0 are rejected as outliers) from 2010-11-15.343 to 2010-11-17.359."
2010 VB140NEODyS1514R E M O V E D-
2010 VQ98JPL Sentry15142099-211061.8e-05-6.85-7.180JPL: "Analysis based on 31 observations spanning 6.9824 days (2010-Nov-10.43786 to 2010-Nov-17.42026)." Diameter approximately 0.008 km. from mean, weighted H=28.2.
2010 UE51JPL Sentry15142077-207827.9e-05-6.08-6.180JPL: "Analysis based on 152 observations spanning 19.108 days (2010-Oct-29.25716 to 2010-Nov-17.36564)." Diameter approximately 0.007 km. from mean, weighted H=28.3.
NEODyS15142072-207858.8e-05-6.03-6.190NEODyS: "Based on 156 optical observations (of which 4 are rejected as outliers) from 2010-10-29.258 to 2010-11-17.366."

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 18 November '10

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

1604Grabbed MPEC 2010-W10 - Brian Marsden - see above
1514Noted that JPL Sentry has updated its 2010 UE51 risk assessment - see above
Noted that NEODyS has updated its 2010 UE51 risk assessment - see above
Noted that NEODyS has removed 2010 VB140 as an impact risk - see above
Noted that JPL Sentry has updated its 2010 VQ98 risk assessment - see above
Noted that JPL Sentry has updated its 2010 VW194 risk assessment - see above
Noted that NEODyS has updated its 2010 VW194 risk assessment - see above
Grabbed MPEC 2010-W09 - Daily Orbit Update - see above