A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted During February 2010

Compiled at 2358 UTC on 28 February 2010

<< January 2010 CRT | CRT Archive Index | March 2010 CRT >>

[ Today's risk monitoring & other observing news | object risks cleared in February | Ephemerides for Active Risk-Rated Objects ]

Missing something? Check the archives for objects not under active observation or recent analysis.

Notes: The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Both risk monitors also post a few special objects with impact solutions beyond 100 years. For the latest official risk assessments, and for explanations of terminology and methodology, see the JPL NEO Program Sentry and NEODyS CLOMON (backup) risk pages.
0000NNN000

Object

Risk
Monitor
A/CC Noted
 Time & Day 
UTC
0000T0000
Year
Range

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

T
S


Notes for Latest Risk Assessments
2010 DM56NEODyS1634 Feb. 272047-2089238.45e-07-3.61-4.350Based on 36 optical observations (of which 0 are rejected as outliers) from 2010/02/19.271 to 2010/02/26.864.
JPL Sentry0002 Feb. 272047-2109309.7e-07-3.56-4.320Analysis based on 36 observations spanning 7.5932 days (2010-Feb-19.26983 to 2010-Feb-26.86307). Diameter approximately 0.340 km. from mean, weighted H=20.0.
Assessment postings were noted by A/CC on 27 Feb.   -   References: MPEC 2010-D85
2010 CN44NEODyS1640 Feb. 202040-207032.94e-07-3.79-4.020Based on 21 optical observations (of which 0 are rejected as outliers) from 2010/02/15.111 to 2010/02/19.169.
JPL Sentry1640 Feb. 202040-207164.1e-07-3.58-3.720Analysis based on 21 observations spanning 4.0584 days (2010-Feb-15.11003 to 2010-Feb-19.16839). Diameter approximately 0.480 km. from mean, weighted H=19.2.
Assessment postings were noted by A/CC on 17 Feb., 19 Feb. & 20 Feb.   -   References: MPECs 2010-D08, 2010-D48 & 2010-D56
2010 CS19JPL Sentry1422 Feb. 19210443.7e-05-6.30-6.330Analysis based on 40 observations spanning 3.1225 days (2010-Feb-15.32692 to 2010-Feb-18.449459). Diameter approximately 0.008 km. from mean, weighted H=28.0.
NEODyS1422 Feb. 19R E M O V E D
Assessment postings were noted by A/CC on 16 Feb., 17 Feb., 18 Feb. & 19 Feb.   -   References: MPECs 2010-C77, 2010-D17, 2010-D39, 2010-D48 & 2010-D59
2010 CQ19JPL Sentry1640 Feb. 20210515.0e-08-8.53-8.530Analysis based on 22 observations spanning 4.0576 days (2010-Feb-15.27907 to 2010-Feb-19.33667). Diameter approximately 0.013 km. from mean, weighted H=27.1.
NEODyS1447 Feb. 18R E M O V E D
Assessment postings were noted by A/CC on 16 Feb., 17 Feb., 18 Feb., 19 Feb. & 20 Feb.   -   References: MPECs 2010-C75, 2010-D17, 2010-D39, 2010-D48 & 2010-D56
2010 CL19NEODyS1422 Feb. 252016-2083361.15e-06-2.10-2.440Based on 33 optical observations (of which 1 are rejected as outliers) from 2010/02/13.096 to 2010/02/17.108.
JPL Sentry2201 Feb. 242019-2108401.4e-06-2.01-2.390Analysis based on 32 observations spanning 4.0113 days (2010-Feb-13.09558 to 2010-Feb-17.10688). Diameter approximately 0.967 km. from mean, weighted H=17.7.
Assessment postings were noted by A/CC on 24 Feb. & 25 Feb.   -   References: MPECs 2010-C70, 2010-D17 & 2010-D39
2010 CK19NEODyS2215 Feb. 282081-208937.05e-07-7.94-8.140Based on 33 optical observations (of which 0 are rejected as outliers) from 2010/02/14.334 to 2010/02/16.470.
JPL Sentry1600 Feb. 232089-210751.3e-06-7.68-8.110Analysis based on 33 observations spanning 2.1365 days (2010-Feb-14.33293 to 2010-Feb-16.46946). Diameter approximately 0.009 km. from mean, weighted H=27.9.
Assessment postings were noted by A/CC on 16 Feb., 17 Feb., 23 Feb. & 28 Feb.   -   References: MPECs 2010-C69, 2010-D04, 2010-D17 & 2010-D73
2010 CR5NEODyS1422 Feb. 192030-208772.6e-08-4.62-4.800Based on 35 optical observations (of which 0 are rejected as outliers) from 2010/02/09.328 to 2010/02/19.212.
JPL Sentry1422 Feb. 192032-208762.7e-08-4.69-4.900Analysis based on 35 observations spanning 9.8836 days (2010-Feb-09.3273 to 2010-Feb-19.21089). Diameter approximately 0.369 km. from mean, weighted H=19.8.
Assessment postings were noted by A/CC on 11 Feb., 12 Feb., 14 Feb., 15 Feb., 16 Feb., 17 Feb., 18 Feb. & 19 Feb.   -   References: MPECs 2010-C44, 2010-C53, 2010-C60, 2010-D17, 2010-D39 & 2010-D48
2010 CANEODyS2213 Feb. 28202215.5e-06-4.31-4.310Based on 61 optical observations (of which 0 are rejected as outliers) from 2010/02/05.197 to 2010/02/14.098.
JPL Sentry1640 Feb. 20202215.2e-06-4.33-4.330Analysis based on 61 observations spanning 8.9008 days (2010-Feb-05.19638 to 2010-Feb-14.097229). Diameter approximately 0.043 km. from mean, weighted H=24.5.
Assessment postings were noted by A/CC on 6 Feb., 7 Feb., 8 Feb., 9 Feb., 11 Feb., 12 Feb., 13 Feb., 14 Feb., 15 Feb., 16 Feb., 19 Feb., 20 Feb. & 28 Feb.   -   References: MPECs 2010-C16, 2010-C18, 2010-C22, 2010-C24, 2010-C43, 2010-C46, 2010-C48, 2010-C53, 2010-C60, 2010-D48 & 2010-D56
2005 YU55NEODyS2103 Feb. 242043-2109954.13e-04-2.16-2.511Based on 46 optical observations (of which 0 are rejected as outliers) from 2005/12/24.299 to 2010/02/20.542.
JPL Sentry2000 Feb. 242043-2109539.5e-04-1.79-1.901Analysis based on 46 observations spanning 1519.2 days (2005-Dec-24.29832 to 2010-Feb-20.541105). Diameter approximately 0.140 km. from mean, weighted H=22.0.
Assessment postings were noted by A/CC on 24 Feb.   -   References: MPEC 2010-D58
153814 2001 WN5JPL Sentry1802 Feb. 19213317.6e-05-1.30-1.30-Analysis based on 121 observations spanning 5122.0 days (1996-Feb-10.39593 to 2010-Feb-18.441914). Diameter approximately 0.780 km. from mean, weighted H=18.2.
NEODyS1422 Feb. 192107-213321.04e-04-1.18-1.18-Based on 125 optical observations (of which 7 are rejected as outliers) from 1996/02/10.397 to 2010/02/18.443.
Assessment postings were noted by A/CC on 13 Feb. & 19 Feb.   -   References: DOUs 2010-C46 & 2010-D48
C   L   E   A   R   E   D
2010 DW1JPL Sentry1640 Feb. 20R E M O V E DRisk listing removed at 1132 UTC 20 Feb.
An assessment posting was noted by A/CC on 20 Feb.   -   References: MPECs 2010-D52, 2010-D56, 2010-D59, 2010-D61, 2010-D78 & 2010-D83
2010 DJ1JPL Sentry2102 Feb. 19R E M O V E DRisk listing removed at 2051 UTC 19 Feb.
Assessment postings were noted by A/CC on 18 Feb. & 19 Feb.   -   References: MPECs 2010-D43, 2010-D56, 2010-D59, 2010-D60 & 2010-D78
2010 DH1JPL Sentry1422 Feb. 19R E M O V E DRisk listing removed at 1133 UTC 19 Feb.
Assessment postings were noted by A/CC on 18 Feb. & 19 Feb.   -   References: MPECs 2010-D42, 2010-D48 & 2010-D56
2010 DG1NEODyS1419 Feb. 26R E M O V E D
JPL Sentry1419 Feb. 26R E M O V E DRisk listing removed at 1051 UTC 26 Feb.
Assessment postings were noted by A/CC on 18 Feb., 19 Feb., 20 Feb., 24 Feb. & 26 Feb.   -   References: MPECs 2010-D41, 2010-D56, 2010-D76 & 2010-D83
2010 DPNEODyS1422 Feb. 19R E M O V E D
JPL Sentry1422 Feb. 19R E M O V E DRisk listing removed at 1131 UTC 19 Feb.
Assessment postings were noted by A/CC on 17 Feb., 18 Feb. & 19 Feb.   -   References: MPECs 2010-D38, 2010-D48, 2010-D56, 2010-D76, 2010-D78 & 2010-D83
2010 DMJPL Sentry1500 Feb. 24R E M O V E DRisk listing removed at 1054 UTC 24 Feb.
NEODyS1500 Feb. 24R E M O V E D
Assessment postings were noted by A/CC on 17 Feb., 18 Feb., 19 Feb., 20 Feb. & 24 Feb.   -   References: MPECs 2010-D34, 2010-D39, 2010-D48, 2010-D56 & 2010-D76
2010 DJJPL Sentry1447 Feb. 18R E M O V E DRisk listing removed at 1133 UTC 18 Feb.
Assessment postings were noted by A/CC on 17 Feb. & 18 Feb.   -   References: MPECs 2010-D31 & 2010-D39
2010 DAJPL Sentry1447 Feb. 18R E M O V E DRisk listing removed at 1101 UTC 18 Feb.
NEODyS1447 Feb. 18R E M O V E D
Assessment postings were noted by A/CC on 17 Feb. & 18 Feb.   -   References: MPECs 2010-D16, 2010-D39, 2010-D48, 2010-D59, 2010-D61, 2010-D73, 2010-D78 & 2010-D87
2010 CH55JPL Sentry1422 Feb. 25R E M O V E DRisk listing removed at 1049 UTC 25 Feb.
NEODyS1640 Feb. 20R E M O V E D
Assessment postings were noted by A/CC on 17 Feb., 18 Feb., 19 Feb., 20 Feb. & 25 Feb.   -   References: MPECs 2010-D27, 2010-D48, 2010-D56 & 2010-D78
2010 CO44JPL Sentry2231 Feb. 17R E M O V E DRisk listing removed at 2135 UTC 17 Feb.
NEODyS2012 Feb. 17R E M O V E D
Assessment postings were noted by A/CC on 16 Feb. & 17 Feb.   -   References: MPECs 2010-D09, 2010-D17, 2010-D39, 2010-D48 & 2010-D78
2010 CJ19JPL Sentry1419 Feb. 16R E M O V E DRisk listing removed at 1046 UTC 16 Feb.
An assessment posting was noted by A/CC on 16 Feb.   -   References: MPECs 2010-C68, 2010-D04, 2010-D17, 2010-D59, 2010-D73 & 2010-D83
2010 CG19JPL Sentry1640 Feb. 20R E M O V E DRisk listing removed at 1049 UTC 20 Feb.
NEODyS1640 Feb. 20R E M O V E D
Assessment postings were noted by A/CC on 16 Feb., 18 Feb., 19 Feb. & 20 Feb.   -   References: MPECs 2010-C66, 2010-D39, 2010-D48, 2010-D56, 2010-D78 & 2010-D83
2010 CF19JPL Sentry2144 Feb. 17R E M O V E DRisk listing removed at 2131 UTC 17 Feb.
NEODyS2012 Feb. 17R E M O V E D
Assessment postings were noted by A/CC on 16 Feb. & 17 Feb.   -   References: MPECs 2010-C65, 2010-D17, 2010-D39, 2010-D48, 2010-D56 & 2010-D78
2010 CD19JPL Sentry2102 Feb. 17R E M O V E DRisk listing removed at 2050 UTC 17 Feb.
Assessment postings were noted by A/CC on 16 Feb. & 17 Feb.   -   References: MPECs 2010-C63, 2010-D17, 2010-D39, 2010-D56 & 2010-D78
2010 CM1NEODyS2007 Feb. 13R E M O V E D
Assessment postings were noted by A/CC on 11 Feb. & 13 Feb.   -   References: MPECs 2010-C39, 2010-C48, 2010-C53 & 2010-D04
2010 CJ1NEODyS1438 Feb. 11R E M O V E D
JPL Sentry1438 Feb. 11R E M O V E DRisk listing removed at 1051 UTC 11 Feb.
Assessment postings were noted by A/CC on 10 Feb. & 11 Feb.   -   References: MPECs 2010-C35, 2010-C43, 2010-C46, 2010-C48, 2010-C60 & 2010-D17
2009 WJ1JPL Sentry1419 Feb. 16R E M O V E DRisk listing removed at 1050 UTC 16 Feb.
An assessment posting was noted by A/CC on 16 Feb.   -   References: MPEC 2010-D04

Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale

For a list of risk-rated objects currently under observation, see our ephemerides page.

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" for more information.


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