Contents  on 13 February '08

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 13 February '08

The MPC's NEO Confirmation Page has 21 listings: 5 new, 16 updated

When last checked at 2356 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had five new and sixteen updated listings. Of these, fourteen were "one nighters." So far The Tracking News has counted a total of 35 objects listed on the NEOCP at some point today.

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object by Birtwhistle et al. at Suno Observatory.

New MPECs  on 13 February '08

Minor Planet Electronic Circulars

As of last check at 2357 UTC, there have been fourteen MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2008-C91 - "16:43 UT" - 2008 BN18


MPEC 2008-C90 - "16:22 UT" - 2008 CS116


MPEC 2008-C89 - "16:19 UT" - 2008 CR116


MPEC 2008-C88 - "16:17 UT" - 2008 CQ116


MPEC 2008-C87 - "16:13 UT" - 2008 CP116


MPEC 2008-C86 - "16:11 UT" - 2008 CO116


MPEC 2008-C85 - "16:08 UT" - 2008 CN116


MPEC 2008-C84 - "16:04 UT" - 2008 CM116


MPEC 2008-C83 - "15:59 UT" - 2008 CL116


MPEC 2008-C82 - "15:57 UT" - 2008 CK116


MPEC 2008-C81 - "15:53 UT" - 2008 CJ116


MPEC 2008-C80 - "15:51 UT" - 2008 CH116


MPEC 2008-C79 - "15:43 UT" - 2008 CG116


<< DOU on 13 Feb. '08 >>  MPEC 2008-C78 - "07:09 UT" - Daily Orbit Update

Observers  on 13 February '08

A total of 44 observing facilities appear in today's MPECs.

CodeObserver / observatory
J94Abbeydale Obs., 1 in MPEC 2008-C78 -- 170891
A74Bergen-Enkheim Obs. in Germany, 2 in MPECs 2008-C78 & 2008-C89 -- 2008 CR116, 2006 HX5
300Bisei Spaceguard Center in Japan, 1 in MPEC 2008-C87 -- 2008 CP116
235CAST Obs. in Italy, 2 in MPECs 2008-C87 & 2008-C89 -- 2008 CR116, 2008 CP116
I77CEAMIG-REA in Brazil, 1 in MPEC 2008-C87 -- 2008 CP116
B09Capannoli Obs. in Italy, 1 in MPEC 2008-C78 -- 5131
703Catalina Sky Survey (CSS) in Arizona, 6 in MPECs 2008-C78, 2008-C83, 2008-C86, 2008-C89, 2008-C90 & 2008-C91 -- 2008 CS116, 2008 CR116, 2008 CO116, 2008 CL116, 2008 CL1, 2008 BN18
B11Cima Rest Obs. in Italy, 1 in MPEC 2008-C78 -- 2008 BT18
106Crni Vrh Obs. in Slovenia, 1 in MPEC 2008-C90 -- 2008 CS116
113Drebach Obs. in Germany, 1 in MPEC 2008-C79 -- 2008 CG116
151Eschenberg Obs. in Switzerland, 1 in MPEC 2008-C86 -- 2008 CO116
595Farra d'Isonzo Obs. in Italy, 4 in MPECs 2008-C86, 2008-C87, 2008-C89 & 2008-C90 -- 2008 CS116, 2008 CR116, 2008 CP116, 2008 CO116
143Gnosca Obs. in Switzerland, 2 in MPECs 2008-C86 & 2008-C89 -- 2008 CR116, 2008 CO116
651Grasslands Obs. in Arizona, 1 in MPEC 2008-C79 -- 2008 CG116
J95Great Shefford Obs. in England, 10 in MPECs 2008-C78, 2008-C79, 2008-C80, 2008-C81, 2008-C83, 2008-C85, 2008-C86, 2008-C87, 2008-C88 & 2008-C91 -- 2008 CQ116, 2008 CP116, 2008 CO116, 2008 CN116, 2008 CM74, 2008 CL116, 2008 CJ116, 2008 CH116, 2008 CG116, 2008 BN18
A17Guidestar Obs. in Germany, 1 in MPEC 2008-C86 -- 2008 CO116
A57Hack Obs. in Italy, 2 in MPEC 2008-C78 -- 2008 CD22, 2005 TU45
F84Hibiscus Obs. in Tahiti, 3 in MPEC 2008-C78 -- 2008 CP, 2008 CN1, 2008 CE22
246KLENOT in the Czech Republic, 11 in MPECs 2008-C78, 2008-C79, 2008-C81, 2008-C83, 2008-C84, 2008-C86, 2008-C87, 2008-C89 & 2008-C90 -- 2008 CS116, 2008 CR116, 2008 CP116, 2008 CO116, 2008 CO, 2008 CM116, 2008 CL116, 2008 CJ116, 2008 CG116, 2008 CD22, 2008 CB6
J66Kinver Obs. in England, 4 in MPECs 2008-C86, 2008-C87, 2008-C89 & 2008-C90 -- 2008 CS116, 2008 CR116, 2008 CP116, 2008 CO116
046Klet Obs. in the Czech Republic, 8 in MPECs 2008-C78, 2008-C87 & 2008-C89 -- 2008 CR116, 2008 CP116, 2008 CN1, 2008 CL1, 2008 CK70, 2008 CD22, 2008 BD15, 2008 AF4
704LINEAR in New Mexico, 13 in MPECs 2008-C78, 2008-C79, 2008-C82, 2008-C87 & 2008-C88 -- 2008 CQ116, 2008 CP116, 2008 CK116, 2008 CH, 2008 CG116, 2007 NS4, 34613, 172722, 138205, 136793, 4503, 3691, 3552
130Lumezzane Obs. in Italy, 8 in MPEC 2008-C78 -- 2008 CN1, 2008 CD22, 2007 YX1, 89830, 22099, 162038, 138175, 11398
H01Magdalena Ridge Obs. (MRO) in New Mexico, 3 in MPECs 2008-C80, 2008-C82 & 2008-C83 -- 2008 CL116, 2008 CK116, 2008 CH116
118Modra Obs. in Slovakia, 1 in MPEC 2008-C86 -- 2008 CO116
474Mt. John Obs. in New Zealand, 3 in MPECs 2008-C78, 2008-C79 & 2008-C90 -- 2008 CS116, 2008 CG116, 2008 CE6
G96Mt. Lemmon Survey (MLS) in Arizona, 22 in MPECs 2008-C78, 2008-C80, 2008-C81, 2008-C82, 2008-C83, 2008-C84, 2008-C85, 2008-C86, 2008-C87, 2008-C90 & 2008-C91 -- 2008 CZ21, 2008 CS116, 2008 CP116, 2008 CO116, 2008 CN116, 2008 CM116, 2008 CL116, 2008 CK70, 2008 CK116, 2008 CJ116, 2008 CH116, 2008 CG, 2008 BN18, 2006 WY2, 2006 BT7, 2003 YQ94, 2003 AJ73, 1999 ED5, 1998 BB10, 163249, 144411, 101869
A13Naef Obs. in Switzerland, 1 in MPEC 2008-C78 -- 2005 BE2
A24New Millennium Obs. in Italy, 3 in MPECs 2008-C86, 2008-C87 & 2008-C89 -- 2008 CR116, 2008 CP116, 2008 CO116
557Ondrejov Obs. in the Czech Republic, 1 in MPEC 2008-C78 -- 2007 TU24
473Remanzacco Obs. in Italy, 1 in MPEC 2008-C86 -- 2008 CO116
854Sabino Canyon Obs. in Arizona, 6 in MPECs 2008-C82, 2008-C86, 2008-C87, 2008-C88, 2008-C89 & 2008-C90 -- 2008 CS116, 2008 CR116, 2008 CQ116, 2008 CP116, 2008 CO116, 2008 CK116
B04Saint-Barthelemy Obs. in Italy, 4 in MPECs 2008-C78, 2008-C83, 2008-C89 & 2008-C90 -- 2008 CS116, 2008 CR116, 2008 CL116, 2008 AF4
104San Marcello Pistoiese Obs. in Italy, 2 in MPECs 2008-C87 & 2008-C89 -- 2008 CR116, 2008 CP116
204Schiaparelli Obs. in Italy, 6 in MPECs 2008-C85, 2008-C86, 2008-C87, 2008-C88, 2008-C89 & 2008-C90 -- 2008 CS116, 2008 CR116, 2008 CQ116, 2008 CP116, 2008 CO116, 2008 CN116
E12Siding Spring Survey (SSS) in New South Wales, 4 in MPECs 2008-C78 & 2008-C79 -- 2008 CG116, 2003 GW, 21088, 159459
691Spacewatch 0.9m telescope in Arizona, 6 in MPECs 2008-C78 & 2008-C81 -- 2008 CJ116, 2008 BS2, 2005 OE3, 86819, 68063, 141053
291Spacewatch 1.8m telescope in Arizona, 10 in MPECs 2008-C78, 2008-C80, 2008-C81, 2008-C83, 2008-C84 & 2008-C91 -- 2008 CM116, 2008 CL116, 2008 CK70, 2008 CJ116, 2008 CH116, 2008 CC71, 2008 BO16, 2008 BN18, 2008 AK33, 141495
6735Jim Young via Table Mtn. Obs. in southern California, 8 in MPECs 2008-C79, 2008-C83, 2008-C85, 2008-C86, 2008-C87, 2008-C88, 2008-C89 & 2008-C90 -- 2008 CS116, 2008 CR116, 2008 CQ116, 2008 CP116, 2008 CO116, 2008 CN116, 2008 CL116, 2008 CG116
B26Terres Blanches Obs. in France, 1 in MPEC 2008-C78 -- 153591
F85Tiki Obs. in Tahiti, 1 in MPEC 2008-C78 -- 1999 SO5
0125Peter De Cat via Uccle Obs. in Belgium, 2 in MPECs 2008-C89 & 2008-C90 -- 2008 CS116, 2008 CR116
A48Verona Obs. in Italy, 2 in MPEC 2008-C78 -- 2007 TG8, 2005 EK70
J71Willow Bank Obs. in England, 4 in MPECs 2008-C86, 2008-C87, 2008-C89 & 2008-C90 -- 2008 CS116, 2008 CR116, 2008 CP116, 2008 CO116

Impact Risk Monitoring  on 13 February '08

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 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 CL116JPL Sentry18592026-2107546.3e-07-3.54-4.100JPL: "Analysis based on 47 observations spanning 3.0355 days (2008-Feb-10.40671 to 2008-Feb-13.44219)." Diameter approximately 0.290 km. from mean, weighted H=20.3.
2008 CM74NEODyS1556208213.19e-08-9.35-9.350NEODyS: "Based on 16 optical observations (of which 0 are rejected as outliers) from 2008/02/08.369 to 2008/02/13.137."
JPL Sentry15552098-210523.7e-07-8.40-8.590JPL: "Analysis based on 16 observations spanning 4.7688 days (2008-Feb-08.36778 to 2008-Feb-13.13659)." Diameter approximately 0.008 km. from mean, weighted H=28.1.
2008 CC71NEODyS15562033-2085621.04e-04-3.94-4.260NEODyS: "Based on 18 optical observations (of which 0 are rejected as outliers) from 2008/02/09.397 to 2008/02/12.289."
JPL Sentry15552033-2082471.1e-04-3.93-4.220JPL: "Analysis based on 18 observations spanning 2.8922 days (2008-Feb-09.39625 to 2008-Feb-12.28842)." Diameter approximately 0.038 km. from mean, weighted H=24.7.
2008 CK70NEODyS15562030-203222.74e-04-3.17-3.170NEODyS: "Based on 59 optical observations (of which 0 are rejected as outliers) from 2008/02/09.342 to 2008/02/12.351."
JPL Sentry1555203012.8e-04-3.16-3.160JPL: "Analysis based on 59 observations spanning 3.0087 days (2008-Feb-09.34106 to 2008-Feb-12.34977)." Diameter approximately 0.032 km. from mean, weighted H=25.1.
2008 CB6NEODyS1556208724.64e-08-8.64-8.910NEODyS: "Based on 32 optical observations (of which 0 are rejected as outliers) from 2008/02/07.293 to 2008/02/12.980."
JPL Sentry15552093-210751.3e-05-6.29-6.420JPL: "Analysis based on 32 observations spanning 5.6872 days (2008-Feb-07.29202 to 2008-Feb-12.97924)." Diameter approximately 0.013 km. from mean, weighted H=27.0.
2008 BO16NEODyS1556204515.04e-07-4.76-4.760NEODyS: "Based on 58 optical observations (of which 3 are rejected as outliers) from 2008/01/30.382 to 2008/02/13.183."
JPL Sentry1555204513.0e-07-4.99-4.990JPL: "Analysis based on 57 observations spanning 13.801 days (2008-Jan-30.38083 to 2008-Feb-13.18203)." Diameter approximately 0.090 km. from mean, weighted H=22.9.
2008 AF4NEODyS15562078-2090121.31e-05-2.56-2.630NEODyS: "Based on 490 optical observations (of which 4 are rejected as outliers) from 2008/01/10.397 to 2008/02/12.931."
JPL Sentry15552078-2101262.1e-05-2.36-2.620JPL: "Analysis based on 486 observations spanning 33.534 days (2008-Jan-10.39652 to 2008-Feb-12.93045)." Diameter approximately 0.390 km. from mean, weighted H=19.7.

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 13 February '08

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

1859Noted that JPL Sentry has posted 2008 CL116 as an impact risk - see above
1741Grabbed MPEC 2008-C91 - 2008 BN18 - see above
1643Grabbed MPEC 2008-C82 - 2008 CK116 - see above
Grabbed MPEC 2008-C83 - 2008 CL116 - see above
Grabbed MPEC 2008-C84 - 2008 CM116 - see above
Grabbed MPEC 2008-C85 - 2008 CN116 - see above
Grabbed MPEC 2008-C86 - 2008 CO116 - see above
Grabbed MPEC 2008-C87 - 2008 CP116 - see above
Grabbed MPEC 2008-C88 - 2008 CQ116 - see above
Grabbed MPEC 2008-C89 - 2008 CR116 - see above
Grabbed MPEC 2008-C90 - 2008 CS116 - see above
1556Noted that NEODyS has updated its 2008 AF4 risk assessment - see above
Noted that NEODyS has updated its 2008 BO16 risk assessment - see above
Noted that NEODyS has updated its 2008 CC71 risk assessment - see above
Noted that NEODyS has updated its 2008 CK70 risk assessment - see above
Noted that NEODyS has updated its 2008 CM74 risk assessment - see above
1555Noted that JPL Sentry has updated its 2008 AF4 risk assessment - see above
Noted that JPL Sentry has updated its 2008 BO16 risk assessment - see above
Noted that JPL Sentry has updated its 2008 CB6 risk assessment - see above
Noted that NEODyS has reposted 2008 CB6 as an impact risk - see above
Noted that JPL Sentry has updated its 2008 CC71 risk assessment - see above
Noted that JPL Sentry has updated its 2008 CK70 risk assessment - see above
Noted that JPL Sentry has updated its 2008 CM74 risk assessment - see above
Grabbed MPEC 2008-C78 - Daily Orbit Update - see above
Grabbed MPEC 2008-C79 - 2008 CG116 - see above
Grabbed MPEC 2008-C80 - 2008 CH116 - see above
Grabbed MPEC 2008-C81 - 2008 CJ116 - see above