Contents  on 30 August '09

Resources:

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 August '09

The MPC's NEO Confirmation Page has 2 listings: 2 updated

When last checked at 2127 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two updated listings. So far The Tracking News has counted a total of six 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 30 August '09

Minor Planet Electronic Circulars

As of last check at 2127 UTC, there have been six MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2009-Q82 - "20:58 UT" - 2009 QC36


MPEC 2009-Q81 - "20:55 UT" - 2009 QB36


<< DOU on 30 Aug. '09 >>  MPEC 2009-Q80 - "06:08 UT" - Daily Orbit Update


MPEC 2009-Q79 - "00:08 UT" - 2009 QC35


MPEC 2009-Q78 - "00:05 UT" - 2009 QB35


MPEC 2009-Q77 - "00:01 UT" - 2009 QA35

Observers  on 30 August '09

A total of 34 observing facilities appear in today's MPECs.

CodeObserver / observatory
H55Astronomical Research Obs. (ARO) in Illinois, 22 in MPECs 2009-Q80 & 2009-Q81 -- 2009 QZ6, 2009 QS, 2009 QQ8, 2009 QM5, 2009 QL8, 2009 QK9, 2009 QK2, 2009 QJ9, 2009 QH6, 2009 QH2, 2009 QG2, 2009 QC23, 2009 QB36, 2009 PT2, 2009 PQ1, 2009 PH, 2009 OZ7, 2009 OC3, 2009 MX6, 2009 JK1, 2002 BP26, 1999 YG3
A74Bergen-Enkheim Obs. in Germany, 1 in MPEC 2009-Q82 -- 2009 QC36
I32Beta Orionis Obs. in Argentina, 1 in MPEC 2009-Q80 -- 159402
300Bisei Spaceguard Center in Japan, 1 in MPEC 2009-Q82 -- 2009 QC36
J05Bootes Obs., 2 in MPEC 2009-Q80 -- 2009 QK9, 1943
703Catalina Sky Survey (CSS) in Arizona, 5 in MPECs 2009-Q77, 2009-Q79, 2009-Q80 & 2009-Q82 -- 2009 QQ8, 2009 QC36, 2009 QC35, 2009 QA35, 2009 MC9
G58Chabot Obs. in northern California, 1 in MPEC 2009-Q81 -- 2009 QB36
176Consell Obs. in Spain, 1 in MPEC 2009-Q78 -- 2009 QB35
B50Corner Obs. in Germany, 1 in MPEC 2009-Q80 -- 2009 QJ9
113Drebach Obs. in Germany, 1 in MPEC 2009-Q81 -- 2009 QB36
I21El Condor Obs. in Argentina, 4 in MPEC 2009-Q80 -- 2009 QJ9, 2009 NH, 2009 MC9, 2000 CO101
151Eschenberg Obs. in Switzerland, 1 in MPEC 2009-Q82 -- 2009 QC36
B21Gaisberg Obs. in Austria, 1 in MPEC 2009-Q81 -- 2009 QB36
J95Great Shefford Obs. in England, 9 in MPECs 2009-Q77, 2009-Q78, 2009-Q79, 2009-Q80 & 2009-Q81 -- 2009 QK9, 2009 QJ9, 2009 QH34, 2009 QF34, 2009 QC35, 2009 QC23, 2009 QB36, 2009 QB35, 2009 QA35
A17Guidestar Obs. in Germany, 4 in MPECs 2009-Q80 & 2009-Q81 -- 2009 QL2, 2009 QH34, 2009 QB36, 8566
B86Hagen Obs. in Germany, 1 in MPEC 2009-Q80 -- 2009 QC35
585Kiev Comet Station in the Ukraine, 1 in MPEC 2009-Q80 -- 2009 OG
704LINEAR in New Mexico, 64 in MPECs 2009-Q78, 2009-Q80 & 2009-Q81 -- 2009 QB36, 2009 QB35, 2009 NE, 2009 FY29, 2008 EN82, 2006 XD2, 2006 VD13, 2006 OB5, 2004 QC17, 2004 JO2, 2004 EB, 2003 YR70, 2003 WO7, 2003 WM25, 2003 SK5, 2003 EG, 2003 DC14, 2002 WP11, 2001 QK142, 2000 QN130, 99935, 90416, 90367, 89355, 89136, 88263, 86450, 55408, 52768, 48603, 42286, 40329, 26760, 25916, 22771, 216689, 186844, 18109, 174806, 162181, 159856, 153249, 144901, 144898, 143404, 142040, 140158, 138911, 138359, 138205, 11398, 10115, 6611, 6455, 5751, 5626, 5587, 5131, 4450, 4015, 2368, 1916, 1864, 1862
J75La Sagra Obs. in Spain, 3 in MPEC 2009-Q80 -- 2009 QY33, 2007 RQ17, 5786
118Modra Obs. in Slovakia, 1 in MPEC 2009-Q81 -- 2009 QB36
900Moriyama Obs. in Japan, 1 in MPEC 2009-Q82 -- 2009 QC36
H06*Rolando Ligustri in Italy via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-Q82 -- 2009 QC36
D90`K. Hills via RAS Obs. Moorook in South Australia, 1 in MPEC 2009-Q79 -- 2009 QC35
J41Raheny Obs. in Ireland, 1 in MPEC 2009-Q81 -- 2009 QB36
473Remanzacco Obs. in Italy, 1 in MPEC 2009-Q81 -- 2009 QB36
854Sabino Canyon Obs. in Arizona, 4 in MPECs 2009-Q77, 2009-Q79, 2009-Q81 & 2009-Q82 -- 2009 QC36, 2009 QC35, 2009 QB36, 2009 QA35
H36Sandlot Obs. in Kansas, 3 in MPECs 2009-Q77, 2009-Q81 & 2009-Q82 -- 2009 QC36, 2009 QB36, 2009 QA35
204Schiaparelli Obs. in Italy, 1 in MPEC 2009-Q78 -- 2009 QB35
E12Siding Spring Survey in New South Wales, 1 in MPEC 2009-Q80 -- 2002 RQ25
691Spacewatch 0.9m telescope in Arizona, 2 in MPECs 2009-Q77 & 2009-Q80 -- 2009 QA35, 2002 QG24
291Spacewatch 1.8m telescope in Arizona, 6 in MPECs 2009-Q77, 2009-Q80 & 2009-Q81 -- 2009 QY33, 2009 QO5, 2009 QM5, 2009 QB36, 2009 QA35, 2004 TN
H53Thompsonville Obs. in Illinois, 5 in MPEC 2009-Q80 -- 2009 OC, 2009 NH, 17274, 5626, 1943
J35Tucci Obs. in Spain, 1 in MPEC 2009-Q80 -- 433
B42Vitebsk Obs. in Belarus, 1 in MPEC 2009-Q80 -- 2009 QJ9
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 30 August '09

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2127 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. Beginning Jan. 22nd, both are also posting impact solutions beyond 100 years for a few 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.
0000NNN000

Object

Risk
Monitor
When
Noted
UTC
0000T0000
Year
Range

VI
#
000NN00
Prob
Cum
T0000
PS
Cum
T0000
PS
Max

T
S


Notes for Today's Latest Risk Assessments
2009 QB35NEODyS15522017-2088131.65e-08-4.87-5.300NEODyS: "Based on 13 optical observations (of which 0 are rejected as outliers) from 2009/08/28.344 to 2009/08/29.072."
JPL Sentry04302012-21082012.7e-07-3.74-4.230JPL: "Analysis based on 13 observations spanning .72860 days (2009-Aug-28.34307 to 2009-Aug-29.07167)." Diameter approximately 0.351 km. from mean, weighted H=19.9.
2009 QF34NEODyS1552R E M O V E D-
JPL Sentry1552R E M O V E DJPL: Risk listing removed at 0850 UTC.
2004 BX159JPL Sentry04302014-2100132.6e-09-4.27-4.640JPL: "Analysis based on 8 observations spanning 3.0080 days (2004-Jan-20.317639 to 2004-Jan-23.32563)." Diameter approximately 1.200 km. from mean, weighted H=17.2.

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 August '09

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

2127Grabbed MPEC 2009-Q81 - 2009 QB36 - see above
Grabbed MPEC 2009-Q82 - 2009 QC36 - see above
1552Noted that NEODyS has posted 2009 QB35 as an impact risk - see above
Noted that JPL Sentry has removed 2009 QF34 as an impact risk - see above
Noted that NEODyS has removed 2009 QF34 as an impact risk - see above
Grabbed MPEC 2009-Q80 - Daily Orbit Update - see above
0430Noted that JPL Sentry has updated its 2004 BX159 risk assessment - see above
Noted that JPL Sentry has posted 2009 QB35 as an impact risk - see above
0027Grabbed MPEC 2009-Q77 - 2009 QA35 - see above
Grabbed MPEC 2009-Q78 - 2009 QB35 - see above
Grabbed MPEC 2009-Q79 - 2009 QC35 - see above