Contents  on 8 August '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 8 August '10

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

When last checked at 2356 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had four new and two updated listings. Of these, three were "one nighters." So far The Tracking News has counted a total of eleven 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 8 August '10

Minor Planet Electronic Circulars

As of last check at 2356 UTC, there have been four MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2010-P42 - "17:14 UT" - 2010 PR10

MPEC 2010-P41 - "17:11 UT" - 2010 PQ10

<< DOU on 8 Aug. '10 >>  MPEC 2010-P40 - "06:10 UT" - Daily Orbit Update

MPEC 2010-P39 - "01:03 UT" - 2010 PM10

Observers  on 8 August '10

Nineteen observing facilities appear in today's MPECs.

CodeObserver / observatory
J16An Carraig Obs. in Northern Ireland, 1 in MPEC 2010-P40 -- 4055
H21Astronomical Research Obs. Westfield in Illinois, 10 in MPECs 2010-P39 & 2010-P40 -- 2010 PO2, 2010 PM9, 2010 PM10, 2010 OP1, 2010 NT1, 2010 MR87, 2010 GH30, 2008 SX245, 2007 US6, 2003 TX7
160Castelmartini Obs. in Italy, 5 in MPEC 2010-P40 -- 2010 PO2, 2010 PJ9, 2010 MF1, 2010 FO92, 2007 VG189
151Eschenberg Obs. in Switzerland, 4 in MPECs 2010-P39 & 2010-P40 -- 2010 PM10, 2010 PK9, 2010 PJ9, 2000 AA6
203GiaGa Obs. in Italy, 1 in MPEC 2010-P40 -- 2010 ON101
J95Great Shefford Obs. in England, 1 in MPEC 2010-P40 -- 2010 PJ9
704LINEAR in New Mexico, 10 in MPECs 2010-P39 & 2010-P40 -- 2010 PM10, 2010 PL9, 2010 PJ9, 2010 MF1, 2007 VG189, 2007 ML13, 2000 AA6, 242211, 9202, 7336
J75La Sagra Obs. in Spain, 1 in MPEC 2010-P40 -- 138404
A06Mataro Obs. in Spain, 2 in MPEC 2010-P40 -- 5786, 1865
A13Naef Obs. in Switzerland, 1 in MPEC 2010-P40 -- 138847
C27Pallerols Obs., 2 in MPEC 2010-P40 -- 2010 PK9, 2010 PJ9
D29Purple Mtn. Obs. Xuyi Station in China, 2 in MPEC 2010-P40 -- 87311, 138404
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 2 in MPEC 2010-P40 -- 2010 PK9, 2010 PJ9
H36Sandlot Obs. in Kansas, 1 in MPEC 2010-P39 -- 2010 PM10
204Schiaparelli Obs. in Italy, 1 in MPEC 2010-P39 -- 2010 PM10
D21Shenton Park Obs. in Western Australia, 10 in MPECs 2010-P39, 2010-P40, 2010-P41 & 2010-P42 -- 2010 PR10, 2010 PQ2, 2010 PQ10, 2010 PM9, 2010 PM10, 2010 PK9, 2010 PJ9, 2010 PJ, 2010 PH9, 2002 AC9
E12Siding Spring Survey (SSS) in New South Wales, 2 in MPECs 2010-P41 & 2010-P42 -- 2010 PR10, 2010 PQ10
6734Mike Hicks via Table Mtn. Obs. in southern California, 1 in MPEC 2010-P39 -- 2010 PM10
I15Wishing Star Obs. in Rhode Island, 3 in MPEC 2010-P40 -- 2010 ON101, 2010 FO92, 2010 AE
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 8 August '10

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2356 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 PM9NEODyS1459R E M O V E D-
2010 OH126NEODyS1459204612.6e-09-6.34-6.340NEODyS: "Based on 13 optical observations (of which 0 are rejected as outliers) from 2010/07/31.519 to 2010/08/06.813."

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 8 August '10

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

1911Grabbed MPEC 2010-P41 - 2010 PQ10 - see above
Grabbed MPEC 2010-P42 - 2010 PR10 - see above
1459Noted that NEODyS has posted 2010 OH126 as an impact risk - see above
Noted that NEODyS has removed 2010 PM9 as an impact risk - see above
Grabbed MPEC 2010-P40 - Daily Orbit Update - see above
0319Grabbed MPEC 2010-P39 - 2010 PM10 - see above