Contents  on 9 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 9 June '10

The MPC's NEO Confirmation Page has 8 listings: 5 new, 3 updated

When last checked at 2303 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had five new and three updated listings. Of these, three were "one nighters." So far The Tracking News has counted a total of nineteen 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 9 June '10

Minor Planet Electronic Circulars

As of last check at 2303 UTC, there have been six MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2010-L52 - "21:14 UT" - 2010 KH

MPEC 2010-L51 - "16:32 UT" - 2010 LR33

MPEC 2010-L50 - "16:29 UT" - 2010 LQ33

MPEC 2010-L49 - "16:26 UT" - 2010 LP33

MPEC 2010-L48 - "16:23 UT" - 2010 KY127

<< DOU on 9 June '10 >>  MPEC 2010-L47 - "06:09 UT" - Daily Orbit Update

Observers  on 9 June '10

Seventeen observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 1 in MPEC 2010-L47 -- 2010 LF
703Catalina Sky Survey (CSS) in Arizona, 4 in MPEC 2010-L47 -- 2009 SO103, 85818, 237442, 4055
H26Doc Greiner Research Obs. in Wisconsin, 1 in MPEC 2010-L47 -- 2010 LJ14
F656Richard Miles in England via Faulkes Telescope North in Hawaii, 2 in MPECs 2010-L49 & 2010-L51 -- 2010 LR33, 2010 LP33
E10Faulkes Telescope South in New South Wales, 4 in MPEC 2010-L47 -- 2010 LN14, 2010 LF14, 2010 KQ, 2010 JT34
157Frasso Sabino Obs. in Italy, 2 in MPEC 2010-L47 -- 2010 CL18, 2006 YY2
695^Spacewatch via Kitt Peak Natl. Obs. (KPNO) in Arizona, 6 in MPEC 2010-L47 -- 2010 KY39, 2010 JH87, 2010 JF87, 2010 FY80, 2010 FJ81, 2010 DJ56
H01Magdalena Ridge Obs. (MRO) in New Mexico, 2 in MPECs 2010-L49 & 2010-L50 -- 2010 LQ33, 2010 LP33
474Mt. John Obs. in New Zealand, 2 in MPECs 2010-L48 & 2010-L50 -- 2010 LQ33, 2010 KY127
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 1 in MPEC 2010-L47 -- 2010 LN14
E12Siding Spring Survey (SSS) in New South Wales, 2 in MPECs 2010-L48 & 2010-L51 -- 2010 LR33, 2010 KY127
691Spacewatch 0.9m telescope in Arizona, 4 in MPEC 2010-L47 -- 2010 CL18, 2001 HZ7, 175729, 162269
291Spacewatch 1.8m telescope in Arizona, 6 in MPECs 2010-L47 & 2010-L49 -- 2010 LP33, 2010 LJ14, 2010 KP10, 2010 GX62, 2010 GR75, 2006 VD2
H83Timberlake Obs. in Virginia, 1 in MPEC 2010-L47 -- 2010 JF88
H78Univ. of Narino Obs. in Colombia, 1 in MPEC 2010-L47 -- 2005 YU55
C51WISE in Earth polar orbit, 6 in MPECs 2010-L47, 2010-L48, 2010-L49, 2010-L50, 2010-L51 & 2010-L52 -- 2010 LR33, 2010 LQ33, 2010 LP33, 2010 KY127, 2010 KH, 2010 DH77
I15Wishing Star Obs. in Rhode Island, 6 in MPEC 2010-L47 -- 2010 JF88, 2010 EC135, 2009 KD5, 2004 JX20, 2003 NZ6, 237442
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 9 June '10

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2303 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 KHJPL Sentry23032018-2077291.4e-08-4.59-5.110JPL: "Analysis based on 21 observations spanning 3.3738 days (2010-May-16.17098 to 2010-May-19.5448)." Diameter approximately 0.593 km. from mean, weighted H=18.8.

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 9 June '10

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

2303Noted that JPL Sentry has posted 2010 KH as an impact risk - see above
Grabbed MPEC 2010-L52 - 2010 KH - see above
1743Grabbed MPEC 2010-L48 - 2010 KY127 - see above
Grabbed MPEC 2010-L49 - 2010 LP33 - see above
Grabbed MPEC 2010-L50 - 2010 LQ33 - see above
Grabbed MPEC 2010-L51 - 2010 LR33 - see above
1359Grabbed MPEC 2010-L47 - Daily Orbit Update - see above