Contents  on 12 February '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 12 February '09

The MPC's NEO Confirmation Page is currently empty

The NEOCP is currently empty and hasn't been noted by The Tracking News as being active yet today (checked at 2358 UTC). It was last noted active yesterday.

New MPECs  on 12 February '09

Minor Planet Electronic Circulars

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


MPEC 2009-C80 - "15:53 UT" - Observations of Comets


MPEC 2009-C79 - "15:39 UT" - Comet C/2009 B2 (LINEAR)


<< DOU on 12 Feb. '09 >>  MPEC 2009-C78 - "07:04 UT" - Daily Orbit Update

Observers  on 12 February '09

A total of 41 observing facilities appear in today's MPECs.

CodeObserver / observatory
834AAAA Buenos Aires Obs. in Argentina, 1 in MPEC 2009-C80 -- C/2007 Q3
349Ageo Obs. in Japan, 10 in MPECs 2009-C79 & 2009-C80 -- C/2009 B2, P/2008 Y2, C/2008 X3, C/2008 T2, C/2006 U6, 77P, 74P, 65P, 33P, 19P
J24Altamira Obs. in Spain, 20 in MPEC 2009-C80 -- C/2008 T2, C/2008 FK75, C/2007 S2, C/2007 Q3, C/2007 N3, C/2007 D1, C/2006 U6, C/2006 Q1, C/2006 OF2, C/2005 L3, 210P, 144P, 116P, 77P, 74P, 67P, 65P, 61P, 59P, 19P
J20Aravaca Obs. in Spain, 3 in MPEC 2009-C80 -- C/2008 T2, C/2006 OF2, 144P
J51Atlante Obs. in the Canary Islands, 5 in MPEC 2009-C80 -- C/2007 N3, C/2005 L3, 210P, 65P, 19P
J79Calarreona Obs. in Spain, 1 in MPEC 2009-C80 -- C/2007 N3
B20Carmelita Obs. in Spain, 5 in MPEC 2009-C80 -- C/2008 T2, C/2006 OF2, 144P, 116P, 29P
160Castelmartini Obs. in Italy, 2 in MPEC 2009-C80 -- C/2008 T2, C/2006 OF2
A77Chante-Perdrix Obs. in France, 1 in MPEC 2009-C80 -- C/2007 N3
808El Leoncito Obs. in Argentina, 1 in MPEC 2009-C80 -- C/2007 M2
114Engelhardt Obs. Zelenchukskaya Station in Karachay-Cherkessia, 2 in MPEC 2009-C80 -- C/2008 T2, C/2006 OF2
E94Gisborne Obs. in New Zealand, 4 in MPEC 2009-C80 -- C/2007 Q3, C/2007 M2, C/2007 G1, C/2006 U6
E16Grove Creek Obs. in New South Wales, 1 in MPEC 2009-C80 -- C/2007 N3
458Guadarrama Obs. in Spain, 2 in MPEC 2009-C80 -- C/2006 OF2, 29P
442Gualba Obs. in Spain, 1 in MPEC 2009-C80 -- 29P
D80Gunma Obs. in Japan, 10 in MPEC 2009-C80 -- C/2006 W3, C/2006 U6, C/2006 Q1, C/2006 OF2, 207P, 144P, 61P, 59P, 51P, 19P
D88Hiratsuka Obs. in Japan, 3 in MPEC 2009-C80 -- C/2007 Q3, C/2006 W3, 59P
A21Irmtraut Obs. in Germany, 2 in MPEC 2009-C80 -- C/2006 OF2, 144P
682Kanab Obs. in Utah, 1 in MPEC 2009-C80 -- C/2006 K1
704LINEAR in New Mexico, 2 in MPEC 2009-C80 -- C/2008 FK75, C/2007 S2
B82Maidbronn Obs. in Germany, 3 in MPEC 2009-C80 -- C/2008 T2, C/2006 OF2, 116P
J40Malaga Obs. in Spain, 6 in MPEC 2009-C80 -- P/2008 Y2, C/2006 OF2, 144P, 59P, 29P, 17P
J46Montana Blanca Obs. in the Canary Islands, 2 in MPECs 2009-C78 & 2009-C80 -- 4179, 29P
213Montcabre Obs. in Spain, 3 in MPEC 2009-C80 -- C/2007 N3, C/2006 OF2, 144P
900Moriyama Obs. in Japan, 20 in MPECs 2009-C79 & 2009-C80 -- C/2009 B2, P/2008 Y2, C/2008 A1, C/2007 Q3, C/2007 N3, C/2007 D1, C/2006 W3, C/2006 U6, C/2006 Q1, C/2005 L3, 210P, 209P, 144P, 81P, 77P, 67P, 59P, 33P, 29P, 19P
J47Nazaret Obs. in Spain, 3 in MPEC 2009-C80 -- C/2007 N3, C/2006 OF2, 144P
A32Panker Obs. in Germany, 2 in MPEC 2009-C80 -- P/2008 Q2, C/2008 A1
B49Paus Obs. in Spain, 3 in MPEC 2009-C80 -- C/2007 N3, C/2005 L3, 19P
H45Petit Jean Mtn. South Obs. in Arkansas, 1 in MPEC 2009-C80 -- C/2007 S2
473Remanzacco Obs. in Italy, 1 in MPEC 2009-C80 -- 144P
I20Rio Cuarto Obs. in Argentina, 1 in MPEC 2009-C80 -- C/2007 M2
939Rodeno Obs. in Spain, 8 in MPEC 2009-C80 -- C/2008 T2, C/2007 N3, C/2006 OF2, C/2005 L3, 144P, 116P, 77P, 65P
204Schiaparelli Obs. in Italy, 6 in MPEC 2009-C80 -- P/2008 Q2, C/2008 N1, C/2007 S2, C/2006 K1, 81P, 51P
E12Siding Spring Survey in New South Wales, 1 in MPEC 2009-C80 -- 150P
B40Skylive Obs. in Italy, 4 in MPEC 2009-C80 -- C/2008 T2, C/2006 OF2, 209P, 144P
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2009-C78 -- 2009 BF58
H10Tzec Maun Obs. Mayhill in New Mexico, 1 in MPEC 2009-C80 -- C/2007 D1
D25Tzec Maun Obs. Pingelly in Western Australia, 1 in MPEC 2009-C80 -- C/2007 G1
J70Vega del Thader Obs. in Spain, 1 in MPEC 2009-C80 -- C/2007 N3
198Wildberg Obs. in Germany, 1 in MPEC 2009-C78 -- 2009 CV
367Yatsuka Obs. in Japan, 3 in MPEC 2009-C80 -- C/2007 Q3, 144P, 67P
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 12 February '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 BF58JPL Sentry15222055-2087292.3e-04-5.02-5.290JPL: "Analysis based on 50 observations spanning 7.9911 days (2009-Jan-28.26267 to 2009-Feb-05.25376)." Diameter approximately 0.012 km. from mean, weighted H=27.3.
NEODyS15222057-2090412.32e-04-5.02-5.300NEODyS: "Based on 50 optical observations (of which 0 are rejected as outliers) from 2009/01/28.263 to 2009/02/05.255."

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 12 February '09

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

1601Grabbed MPEC 2009-C79 - Comet C/2009 B2 (LINEAR) - see above
Grabbed MPEC 2009-C80 - Observations of Comets - see above
1522Noted that JPL Sentry has updated its 2009 BF58 risk assessment - see above
Noted that NEODyS has updated its 2009 BF58 risk assessment - see above
Grabbed MPEC 2009-C78 - Daily Orbit Update - see above