Contents  on 26 July '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 26 July '09

The MPC's NEO Confirmation Page is currently empty

The NEOCP is currently empty. There was one listing noted earlier today.

New MPECs  on 26 July '09

Minor Planet Electronic Circulars

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


MPEC 2009-O36 - "21:46 UT" - 2009 OZ4


<< DOU on 26 July '09 >>  MPEC 2009-O35 - "06:07 UT" - Daily Orbit Update

Observers  on 26 July '09

A total of 23 observing facilities appear in today's MPECs.

CodeObserver / observatory
J10Alicante Obs. in Spain, 1 in MPEC 2009-O35 -- 1943
J51Atlante Obs. in the Canary Islands, 3 in MPEC 2009-O35 -- 24761, 9162, 1943
J05Bootes Obs., 1 in MPEC 2009-O35 -- 2009 KJ22
I21El Condor Obs. in Argentina, 8 in MPEC 2009-O35 -- 2009 OG, 2009 MC9, 2006 TU7, 52762, 27346, 24761, 17274, 5626
114Engelhardt Obs. Zelenchukskaya Station in Karachay-Cherkessia, 1 in MPEC 2009-O35 -- 215167
151Eschenberg Obs. in Switzerland, 4 in MPEC 2009-O35 -- 2009 OF, 2009 MX6, 2002 LV, 2000 QK130
734Farpoint Obs. in Kansas, 1 in MPEC 2009-O36 -- 2009 OZ4
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2009-O36 -- 2009 OZ4
J95Great Shefford Obs. in England, 2 in MPEC 2009-O35 -- 2009 NL, 2001 AA50
585Kiev Comet Station in the Ukraine, 2 in MPEC 2009-O35 -- 154244, 5620
704LINEAR in New Mexico, 5 in MPECs 2009-O35 & 2009-O36 -- 2009 OZ4, 2009 KJ22, 2005 YX128, 2001 OA14, 30825
474Mt. John Obs. in New Zealand, 1 in MPEC 2009-O36 -- 2009 OZ4
A13Naef Obs. in Switzerland, 2 in MPECs 2009-O35 & 2009-O36 -- 2009 OZ4, 2009 KJ22
D29Purple Mtn. Obs. XuYi Station in China, 1 in MPEC 2009-O35 -- 163902
H06%Ernesto Guido in Italy via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-O36 -- 2009 OZ4
204Schiaparelli Obs. in Italy, 3 in MPEC 2009-O35 -- 9162, 5620, 3200
B40Skylive Obs. in Italy, 1 in MPEC 2009-O35 -- 2009 OC
587Sormano Obs. in Italy, 1 in MPEC 2009-O36 -- 2009 OZ4
291Spacewatch 1.8m telescope in Arizona, 1 in MPEC 2009-O35 -- 2006 PA1
A78Stia Obs. in Italy, 3 in MPEC 2009-O35 -- 2009 OF, 2009 NE, 2009 KL2
H10Tzec Maun Obs. Mayhill in New Mexico, 1 in MPEC 2009-O36 -- 2009 OZ4
D25Tzec Maun Obs. Pingelly in Western Australia, 2 in MPEC 2009-O35 -- 2009 OG, 2001 FE90
198Wildberg Obs. in Germany, 2 in MPECs 2009-O35 & 2009-O36 -- 2009 OZ4, 2201
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 26 July '09

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. 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 OFNEODyS1534R E M O V E D-
JPL Sentry1534R E M O V E DJPL: Risk listing removed at 0850 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 26 July '09

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

2200Grabbed MPEC 2009-O36 - 2009 OZ4 - see above
Noted that the NEOCP has become empty
1534Noted that JPL Sentry has removed 2009 OF as an impact risk - see above
Noted that NEODyS has removed 2009 OF as an impact risk - see above
Grabbed MPEC 2009-O35 - Daily Orbit Update - see above
0148Noted that the NEOCP has become active