Contents  on 10 February '08

Resources:

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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 10 February '08

The MPC's NEO Confirmation Page has 29 listings: 7 new, 22 updated

When last checked at 2355 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had seven new and 22 updated listings. Of these, twelve were "one nighters." The Tracking News counted a total of 31 objects listed on the NEOCP at some point on this day.

New MPECs  on 10 February '08

Minor Planet Electronic Circulars

There was one MPEC issued this day from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


<< DOU on 10 Feb. '08 >>  MPEC 2008-C59 - "07:08 UT" - Daily Orbit Update

Observers  on 10 February '08

A total of 23 observing facilities appeared in this day's MPEC.

CodeObserver / observatory
H55Astronomical Research Obs. (ARO) in Illinois, 2 in MPEC 2008-C59 -- 2008 CX21, 2008 CB22
B09Capannoli Obs. in Italy, 1 in MPEC 2008-C59 -- 4450
703Catalina Sky Survey (CSS) in Arizona, 6 in MPEC 2008-C59 -- 2008 CR1, 2008 AN33, 96189, 21277, 162038, 138013
448Desert Moon Obs. in New Mexico, 7 in MPEC 2008-C59 -- 2008 CN1, 2008 CL1, 2008 CB22, 2008 AM33, 2007 YX1, 162980, 137158
151Eschenberg Obs. in Switzerland, 6 in MPEC 2008-C59 -- 2008 CH, 2008 BT18, 2008 BD15, 2008 AF4, 2007 YV29, 2000 CH59
J95Great Shefford Obs. in England, 4 in MPEC 2008-C59 -- 2008 CM20, 2008 CL20, 2008 CF22, 2007 RX19
246KLENOT in the Czech Republic, 3 in MPEC 2008-C59 -- 2008 CO, 2008 CB6, 2005 NB7
J66Kinver Obs. in England, 10 in MPEC 2008-C59 -- 2008 CP, 2008 CM, 2008 CF22, 2008 CD22, 2008 BH16, 2008 BD15, 2007 VQ4, 2006 JY25, 2005 EK70, 2003 AD1
046Klet Obs. in the Czech Republic, 7 in MPEC 2008-C59 -- 2008 CP, 2008 BH16, 2008 AF4, 2008 AE, 2007 YK, 2007 TG8, 2006 JY25
704LINEAR in New Mexico, 2 in MPEC 2008-C59 -- 7977, 6456
699LONEOS in Arizona, 3 in MPEC 2008-C59 -- 170891, 154347, 11398
B28Mandi Obs. in Italy, 1 in MPEC 2008-C59 -- 2005 TU45
G96Mt. Lemmon Survey (MLS) in Arizona, 7 in MPEC 2008-C59 -- 2008 AU26, 2007 VH3, 2007 UA2, 2004 YC5, 2001 BE16, 18736, 154244
557Ondrejov Obs. in the Czech Republic, 1 in MPEC 2008-C59 -- 2007 TU24
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 16 in MPEC 2008-C59 -- 2008 CP, 2008 BD15, 2008 AF4, 2007 YK, 2007 PU11, 2005 XD1, 2005 TU45, 1993 TQ2, 99935, 96189, 90403, 86324, 170891, 154347, 5131, 4450
B58Polaris Obs., 2 in MPEC 2008-C59 -- 2008 BH16, 2008 BD15
D29Purple Mtn. Obs. XuYi Station in China, 2 in MPEC 2008-C59 -- 2003 EE16, 11398
204Schiaparelli Obs. in Italy, 2 in MPEC 2008-C59 -- 2008 CF22, 2007 RX19
E12Siding Spring Survey (SSS) in New South Wales, 4 in MPEC 2008-C59 -- 2008 CF22, 2008 CE22, 2007 VR183, 154278
691Spacewatch 0.9m telescope in Arizona, 6 in MPEC 2008-C59 -- 2008 CA6, 2008 AT28, 2003 QZ29, 172722, 3552, 2202
291Spacewatch 1.8m telescope in Arizona, 6 in MPEC 2008-C59 -- 2008 CH1, 2008 CD6, 2008 CB6, 2008 BO16, 2008 AU26, 2005 XV77
6735Jim Young via Table Mtn. Obs. in southern California, 1 in MPEC 2008-C59 -- 2008 CS1
H47Vicksburg Obs. in Mississippi, 1 in MPEC 2008-C59 -- 2007 PU11

Impact Risk Monitoring  on 10 February '08

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2355 UTC)
See the CRT page for a list of all objects rated recently as risks and our ephemerides page for a list of objects under current observation.
Note that the time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090.
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
2008 CF22NEODyS1622204711.36e-08-8.23-8.230NEODyS: "Based on 58 optical observations (of which 1 are rejected as outliers) from 2008/02/09.064 to 2008/02/10.086."
JPL Sentry1622R E M O V E DJPL: Risk listing removed at 1306 UTC.
2008 CE22JPL Sentry1622210412.4e-07-7.69-7.690JPL: "Analysis based on 40 observations spanning .32124 days (2008-Feb-09.29929 to 2008-Feb-09.62053)." Diameter approximately 0.018 km. from mean, weighted H=26.4.
2008 CD22JPL Sentry1622R E M O V E DJPL: Risk listing removed at 1255 UTC.
2008 CB22JPL Sentry1622210013.3e-09-6.12-6.120JPL: "Analysis based on 43 observations spanning 1.0890 days (2008-Feb-08.41828 to 2008-Feb-09.50727)." Diameter approximately 0.410 km. from mean, weighted H=19.6.
2008 CZ21NEODyS16222010-20901491.29e-08-4.81-5.120NEODyS: "Based on 13 optical observations (of which 0 are rejected as outliers) from 2008/02/08.290 to 2008/02/09.225."
2008 CM20JPL Sentry1622R E M O V E DJPL: Risk listing removed at 1226 UTC.
NEODyS1622R E M O V E D
2008 CD6JPL Sentry16222056-2107313.4e-07-6.00-6.330JPL: "Analysis based on 18 observations spanning 2.1022 days (2008-Feb-07.31686 to 2008-Feb-09.41903)." Diameter approximately 0.064 km. from mean, weighted H=23.6.
NEODyS16222044-2089283.12e-08-6.87-7.460NEODyS: "Based on 18 optical observations (of which 0 are rejected as outliers) from 2008/02/07.318 to 2008/02/09.420."
2008 CB6JPL Sentry16222071-210791.1e-05-6.27-6.400JPL: "Analysis based on 20 observations spanning 2.6493 days (2008-Feb-07.29202 to 2008-Feb-09.94135)." Diameter approximately 0.014 km. from mean, weighted H=26.9.
NEODyS1622207411.73e-08-8.92-8.920NEODyS: "Based on 20 optical observations (of which 0 are rejected as outliers) from 2008/02/07.293 to 2008/02/09.942."
2008 CS1JPL Sentry16222044-2107161.2e-06-3.52-4.100JPL: "Analysis based on 29 observations spanning 6.0526 days (2008-Feb-03.50178 to 2008-Feb-09.55438)." Diameter approximately 0.300 km. from mean, weighted H=20.3.
NEODyS16222044-2087149.52e-07-3.58-4.120NEODyS: "Based on 31 optical observations (of which 2 are rejected as outliers) from 2008/02/03.503 to 2008/02/09.555."
2008 BO16JPL Sentry1622204513.6e-06-3.92-3.920JPL: "Analysis based on 45 observations spanning 10.083 days (2008-Jan-30.38083 to 2008-Feb-09.4638)." Diameter approximately 0.088 km. from mean, weighted H=22.9.
NEODyS1622204514.11e-06-3.87-3.870NEODyS: "Based on 46 optical observations (of which 2 are rejected as outliers) from 2008/01/30.382 to 2008/02/09.465."
2008 AF4JPL Sentry16222078-2100262.0e-05-2.38-2.730JPL: "Analysis based on 441 observations spanning 30.356 days (2008-Jan-10.39652 to 2008-Feb-09.75216)." Diameter approximately 0.390 km. from mean, weighted H=19.7.
NEODyS16222078-2090181.13e-05-2.62-2.730NEODyS: "Based on 445 optical observations (of which 4 are rejected as outliers) from 2008/01/10.397 to 2008/02/09.753."

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 10 February '08

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

1622Noted that JPL Sentry has updated its 2008 AF4 risk assessment - see above
Noted that NEODyS has updated its 2008 AF4 risk assessment - see above
Noted that JPL Sentry has updated its 2008 BO16 risk assessment - see above
Noted that NEODyS has updated its 2008 BO16 risk assessment - see above
Noted that JPL Sentry has updated its 2008 CB22 risk assessment - see above
Noted that JPL Sentry has updated its 2008 CB6 risk assessment - see above
Noted that NEODyS has updated its 2008 CB6 risk assessment - see above
Noted that JPL Sentry has removed 2008 CD22 as an impact risk - see above
Noted that JPL Sentry has updated its 2008 CD6 risk assessment - see above
Noted that NEODyS has updated its 2008 CD6 risk assessment - see above
Noted that JPL Sentry has updated its 2008 CE22 risk assessment - see above
Noted that JPL Sentry has removed 2008 CF22 as an impact risk - see above
Noted that NEODyS has posted 2008 CF22 as an impact risk - see above
Noted that JPL Sentry has removed 2008 CM20 as an impact risk - see above
Noted that NEODyS has removed 2008 CM20 as an impact risk - see above
Noted that JPL Sentry has updated its 2008 CS1 risk assessment - see above
Noted that NEODyS has updated its 2008 CS1 risk assessment - see above
Noted that NEODyS has posted 2008 CZ21 as an impact risk - see above
Grabbed MPEC 2008-C59 - Daily Orbit Update - see above