Technical illustration of the WISE space observatory, 
courtesy of the WISE Mission.

NASA JPL reports that the WISE wide-field infrared telescope operating in Earth polar orbit has been discovering asteroids at the rate of "about a hundred a day" since January, mostly in the Main Belt but including "more than 50" total near Earth, and "has also bagged about a dozen new comets." Credit: January image of M3 with comet C/2008 Q3 (Garradd), NASA/JPL-Caltech/WISE.

Contents  on 26 May '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.

Radar Astrometry  on 26 May '10

Radar observation of one object

The JPL Solar System Dynamics Group Radar Astrometry database has added or updated the following small-body radar observing work:

Data update noted at 2036 UTC when the database was dated 26 May

NEOCP Activity  on 26 May '10

The MPC's NEO Confirmation Page has 11 listings: 8 new, 3 updated

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

New MPECs  on 26 May '10

Minor Planet Electronic Circulars

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

<< DOU on 26 May '10 >>  MPEC 2010-K62 - "06:11 UT" - Daily Orbit Update

Observers  on 26 May '10

Nineteen observing facilities appear in today's MPEC.

CodeObserver / observatory
251Arecibo in Puerto Rico, 1 in radar -- 2010 JN71
H21Astronomical Research Obs. Westfield in Illinois, 4 in MPEC 2010-K62 -- 2010 KY39, 2010 JV34, 2010 JH88, 2004 XD50
160Castelmartini Obs. in Italy, 4 in MPEC 2010-K62 -- 2010 FC81, 2009 KD5, 237442, 153957
703Catalina Sky Survey (CSS) in Arizona, 2 in MPEC 2010-K62 -- 2010 JH88, 2009 SO103
448Desert Moon Obs. in New Mexico, 9 in MPEC 2010-K62 -- 2010 KR10, 2010 JK41, 2010 HC, 2010 GA34, 2006 QS, 2005 SC71, 2003 NZ6, 161998, 153842
H26Doc Greiner Research Obs. in Wisconsin, 1 in MPEC 2010-K62 -- 2010 JV34
F656Richard Miles in England via Faulkes Telescope North in Hawaii, 1 in MPEC 2010-K62 -- 2010 KQ
J95Great Shefford Obs. in England, 1 in MPEC 2010-K62 -- 2010 KV39
H01Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2010-K62 -- 2010 KQ
568[Ovidiu Vaduvescu on Mauna Kea in Hawaii, 5 in MPEC 2010-K62 -- 2008 CJ70, 2005 OJ3, 2002 VR94, 2000 SZ44, 164221
B06Montseny Obs. in Spain, 1 in MPEC 2010-K62 -- 85818
G96Mt. Lemmon Survey (MLS) in Arizona, 2 in MPEC 2010-K62 -- 2010 JO33, 2010 GX62
510Siegen Obs. in Germany, 2 in MPEC 2010-K62 -- 2010 JV34, 433
587Sormano Obs. in Italy, 4 in MPEC 2010-K62 -- 2010 KV39, 2010 KQ, 2010 KK37, 2010 JV34
691Spacewatch 0.9m telescope in Arizona, 4 in MPEC 2010-K62 -- 2004 XL35, 85628, 66400, 37638
926Tenagra II Obs. in Arizona, 2 in MPEC 2010-K62 -- 2010 KV39, 2010 KK37
H10Tzec Maun Obs. Mayhill in New Mexico, 2 in MPEC 2010-K62 -- 2010 JV34, 2010 FC81
G72University Hills Obs. in southern California, 1 in MPEC 2010-K62 -- 2010 FC81
I15Wishing Star Obs. in Rhode Island, 1 in MPEC 2010-K62 -- 2010 EC135
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 26 May '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 KV39NEODyS1653R E M O V E D-
JPL Sentry1653R E M O V E DJPL: Risk listing removed at 0955 UTC.
2010 KR10JPL Sentry16532047-208131.3e-07-4.19-4.260JPL: "Analysis based on 24 observations spanning 4.9813 days (2010-May-20.44123 to 2010-May-25.42252)." Diameter approximately 0.392 km. from mean, weighted H=19.7.
NEODyS16532047-208131.68e-07-4.10-4.200NEODyS: "Based on 24 optical observations (of which 0 are rejected as outliers) from 2010/05/20.442 to 2010/05/25.423."

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 26 May '10

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

2036Noted Radar Astrometry database update - see above
1653Noted that JPL Sentry has updated its 2010 KR10 risk assessment - see above
Noted that NEODyS has updated its 2010 KR10 risk assessment - see above
Noted that JPL Sentry has removed 2010 KV39 as an impact risk - see above
Noted that NEODyS has removed 2010 KV39 as an impact risk - see above
Grabbed MPEC 2010-K62 - Daily Orbit Update - see above