Contents  on 10 June '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 10 June '10

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

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had four new and two updated listings. Of these, one was a "one nighter." So far The Tracking News has counted a total of ten listings on the NEOCP at some point today.

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 10 June '10

Minor Planet Electronic Circulars

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

MPEC 2010-L58 - "23:03 UT" - 2010 EV45

MPEC 2010-L57 - "22:47 UT" - 2010 LM34

MPEC 2010-L56 - "17:00 UT" - 2010 LE15

MPEC 2010-L55 - "16:42 UT" - 2010 LL34

MPEC 2010-L54 - "16:33 UT" - 2010 LK34

<< DOU on 10 June '10 >>  MPEC 2010-L53 - "06:09 UT" - Daily Orbit Update

Observers  on 10 June '10

A total of 26 observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 3 in MPECs 2010-L54, 2010-L55 & 2010-L57 -- 2010 LM34, 2010 LL34, 2010 LK34
B09Capannoli Obs. in Italy, 1 in MPEC 2010-L53 -- 2010 EV45
703Catalina Sky Survey (CSS) in Arizona, 12 in MPECs 2010-L53, 2010-L54, 2010-L55, 2010-L56, 2010-L57 & 2010-L58 -- 2010 LM34, 2010 LL34, 2010 LK34, 2010 LE15, 2010 EV45, 2009 KD5, 2009 JO2, 52750, 241370, 162483, 153842, 136874
106Crni Vrh Obs. in Slovenia, 1 in MPEC 2010-L53 -- 2009 SO103
H26Doc Greiner Research Obs. (DGRO) in Wisconsin, 2 in MPEC 2010-L53 -- 2010 JK41, 2010 JF88
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2010-L54 -- 2010 LK34
F656Richard Miles in England via Faulkes Telescope North in Hawaii, 1 in MPEC 2010-L55 -- 2010 LL34
157Frasso Sabino Obs. in Italy, 5 in MPEC 2010-L53 -- 2010 EV45, 2010 CL18, 2009 WC26, 2008 YJ3, 159609
704LINEAR in New Mexico, 6 in MPEC 2010-L53 -- 2010 GA34, 2004 TB18, 2000 KO44, 52750, 241370, 161998
H15MPC code H15, 1 in MPEC 2010-L57 -- 2010 LM34
H01Magdalena Ridge Obs. (MRO) in New Mexico, 2 in MPECs 2010-L54 & 2010-L55 -- 2010 LL34, 2010 LK34
900Moriyama Obs. in Japan, 1 in MPEC 2010-L54 -- 2010 LK34
474Mt. John Obs. in New Zealand, 3 in MPECs 2010-L53 & 2010-L54 -- 2010 LN14, 2010 LK34, 2010 JT34
G96Mt. Lemmon Survey in Arizona, 1 in MPEC 2010-L55 -- 2010 LL34
608NEAT's USAF Haleakala telescope in Hawaii, 1 in MPEC 2010-L58 -- 2010 EV45
H23Pear Tree Obs. in Florida, 1 in MPEC 2010-L53 -- 2009 KD5
473Remanzacco Obs. in Italy, 2 in MPECs 2010-L54 & 2010-L55 -- 2010 LL34, 2010 LK34
854Sabino Canyon Obs. in Arizona, 3 in MPECs 2010-L54, 2010-L55 & 2010-L57 -- 2010 LM34, 2010 LL34, 2010 LK34
H36Sandlot Obs. in Kansas, 1 in MPEC 2010-L54 -- 2010 LK34
E12Siding Spring Survey (SSS) in New South Wales, 13 in MPEC 2010-L53 -- 2010 JG, 2008 VK14, 2007 VG189, 2006 CX10, 2005 GO21, 2003 QC10, 2003 BH84, 232382, 19764, 152637, 138359, 7839, 1980
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2010-L56 -- 2010 LE15
291Spacewatch 1.8m telescope in Arizona, 7 in MPECs 2010-L53 & 2010-L55 -- 2010 LL34, 2010 LJ14, 2010 JL77, 2010 JG87, 2006 KR1, 2004 TB18, 2004 BL86
926Tenagra II Obs. in Arizona, 2 in MPEC 2010-L53 -- 2010 LN14, 2010 KA8
H10Tzec Maun Obs. Mayhill in New Mexico, 1 in MPEC 2010-L57 -- 2010 LM34
C51WISE in Earth polar orbit, 1 in MPEC 2010-L56 -- 2010 LE15
198Wildberg Obs. in Germany, 1 in MPEC 2010-L57 -- 2010 LM34
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 10 June '10

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS at 2358 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 LL34JPL Sentry21242014-21101451.5e-07-3.35-3.660JPL: "Analysis based on 28 observations spanning 1.0488 days (2010-Jun-09.40204 to 2010-Jun-10.45083)." Diameter approximately 0.484 km. from mean, weighted H=19.2.
2010 KHNEODyS13572015-2087451.69e-08-4.47-4.990NEODyS: "Based on 21 optical observations (of which 1 are rejected as outliers) from 2010/05/16.172 to 2010/05/19.546."

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 10 June '10

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

2358Grabbed MPEC 2010-L58 - 2010 EV45 - see above
2301Grabbed MPEC 2010-L57 - 2010 LM34 - see above
2124Noted that JPL Sentry has posted 2010 LL34 as an impact risk - see above
1800Grabbed MPEC 2010-L56 - 2010 LE15 - see above
1700Grabbed MPEC 2010-L54 - 2010 LK34 - see above
Grabbed MPEC 2010-L55 - 2010 LL34 - see above
1357Noted that NEODyS has posted 2010 KH as an impact risk - see above
Grabbed MPEC 2010-L53 - Daily Orbit Update - see above