Contents  on 30 July '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 30 July '10

The MPC's NEO Confirmation Page has 19 listings: 11 new, 8 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had eleven new and eight updated listings. Of these, three 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 30 July '10

Minor Planet Electronic Circulars

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

MPEC 2010-O51 - "21:40 UT" - Observations of Comets

MPEC 2010-O50 - "15:24 UT" - 2010 HD112

<< DOU on 30 July '10 >>  MPEC 2010-O49 - "06:08 UT" - Daily Orbit Update

MPEC 2010-O48 - "02:59 UT" - 2010 LG61

Observers  on 30 July '10

A total of 36 observing facilities appear in today's MPECs.

CodeObserver / observatory
834AAAA Buenos Aires Obs. in Argentina, 3 in MPEC 2010-O51 -- C/2006 W3, 81P, 65P
349Ageo Obs. in Japan, 5 in MPEC 2010-O51 -- C/2009 P1, C/2007 VO53, C/2007 Q3-A, C/2006 S3, 65P
H21Astronomical Research Obs. Westfield in Illinois, 1 in MPEC 2010-O51 -- C/2008 N1
J51Atlante Obs. in the Canary Islands, 3 in MPECs 2010-O49 & 2010-O51 -- C/2008 FK75, 100926, 4055
215Buchloe Obs. in Germany, 1 in MPEC 2010-O51 -- 223P
B20Carmelita Obs. in Spain, 2 in MPEC 2010-O51 -- C/2008 FK75, C/2007 Q3-A
160Castelmartini Obs. in Italy, 20 in MPECs 2010-O49 & 2010-O51 -- P/2010 J3, C/2010 J2, 2009 WC26, C/2009 UG89, C/2008 FK75, C/2007 Q3-A, 2002 OS4, 66146, 25916, 242211, 19764, 153842, 5786, 4954, 3122, 236P, 223P, 103P, 81P, 10P
807Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2010-O50 -- 2010 HD112
A77Chante-Perdrix Obs. in France, 1 in MPEC 2010-O51 -- 10P
J01Cielo Profundo Obs. in Spain, 5 in MPEC 2010-O51 -- C/2010 J2, C/2009 UG89, C/2008 FK75, C/2006 S3, 103P
829Complejo Astronomico El Leoncito (CASLEO) in Argentina, 4 in MPEC 2010-O51 -- 215P, 100P, 99P, 49P
850Cordell-Lorenz Obs. in Tennessee, 2 in MPEC 2010-O51 -- C/2010 J2, 10P
157Frasso Sabino Obs. in Italy, 1 in MPEC 2010-O51 -- 103P
J95Great Shefford Obs. in England, 2 in MPEC 2010-O49 -- 2010 OS22, 2010 OE22
017Hoher List Obs. in Belgium, 2 in MPEC 2010-O51 -- C/2008 N1, C/2007 Q3-A
415Kambah Obs. in the Australian Capital Territory, 1 in MPEC 2010-O51 -- C/2006 W3
585Kiev Comet Station in the Ukraine, 3 in MPEC 2010-O51 -- 236P, 103P, 65P
D95Kurihara Obs. in Japan, 3 in MPEC 2010-O51 -- C/2006 S3, 74P, 10P
J38La Vara Obs. in Spain, 4 in MPEC 2010-O51 -- C/2008 FK75, C/2007 Q3-A, 103P, 10P
304Las Campanas Obs. in Chile, 1 in MPEC 2010-O50 -- 2010 HD112
J40Malaga Obs. in Spain, 1 in MPEC 2010-O51 -- 65P
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-O49 -- 2005 RR6
945Monte Deva Obs. in Spain, 6 in MPEC 2010-O51 -- C/2008 FK75, C/2007 Q3-A, 103P, 81P, 65P, 10P
900Moriyama Obs. in Japan, 2 in MPEC 2010-O51 -- 215P, 65P
D92Osaki Obs. in Japan, 1 in MPEC 2010-O51 -- C/2007 VO53
B49Paus Obs. in Spain, 1 in MPEC 2010-O51 -- 103P
H06RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-O51 -- 10P
D90RAS Obs. Moorook in South Australia, 2 in MPEC 2010-O51 -- P/2010 J3, 74P
473Remanzacco Obs. in Italy, 1 in MPEC 2010-O51 -- P/2010 H2
204Schiaparelli Obs. in Italy, 2 in MPEC 2010-O51 -- 236P, 143P
E12Siding Spring Survey in New South Wales, 1 in MPEC 2010-O51 -- 143P
G68Sierra Stars Obs. in northern California, 1 in MPEC 2010-O51 -- 103P
071Smolyan Obs. in Bulgaria, 2 in MPEC 2010-O51 -- C/2006 S3, 81P
D96Tzec Maun Obs. Moorook in South Australia, 1 in MPEC 2010-O51 -- C/2009 P1
C51WISE in Earth polar orbit, 8 in MPECs 2010-O48, 2010-O49 & 2010-O51 -- 2010 MF1, 2010 LG61, 2010 KY39, 2009 KD5, 2006 CS, 2004 EB, 152558, 142P
G56Walnut Creek Obs. in northern California, 1 in MPEC 2010-O49 -- 161998
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 30 July '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. 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 LG61JPL Sentry0456R E M O V E DJPL: Risk listing removed at 0447 UTC.

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 30 July '10

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

2232Grabbed MPEC 2010-O51 - Observations of Comets - see above
1725Grabbed MPEC 2010-O50 - 2010 HD112 - see above
1320Grabbed MPEC 2010-O49 - Daily Orbit Update - see above
0456Noted that JPL Sentry has removed 2010 LG61 as an impact risk - see above
Grabbed MPEC 2010-O48 - 2010 LG61 - see above