A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted during March 2009

Compiled at 2359 UTC on 31 March 2009

<< February 2009 CRT | CRT Archive Index | April 2009 CRT >>

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

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

Note that the time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090, plus (since 22 Jan. 2009) 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
2009 FQ32JPL Sentry1709 March 302070-210444.0e-08-8.65-8.900Analysis based on 8 observations spanning 1.2047 days (2009-Mar-29.24106 to 2009-Mar-30.44576). Diameter approximately 0.015 km. from mean, weighted H=26.8.
An assessment posting was noted by A/CC on 30 March   -   References: MPEC 2009-F100
2009 FP32NEODyS1322 March 312073-209082.45e-06-6.99-7.430Based on 20 optical observations (of which 0 are rejected as outliers) from 2009/03/29.241 to 2009/03/30.317.
JPL Sentry1709 March 302073-2104147.5e-06-6.56-7.030Analysis based on 20 observations spanning 1.0757 days (2009-Mar-29.24036 to 2009-Mar-30.31608). Diameter approximately 0.010 km. from mean, weighted H=27.8.
Assessment postings were noted by A/CC on 30 March & 31 March   -   References: MPEC 2009-F99
2009 FJ30NEODyS1333 March 302021-2089165.0e-07-5.25-5.650Based on 16 optical observations (of which 0 are rejected as outliers) from 2009/03/27.406 to 2009/03/29.342.
JPL Sentry1333 March 302021-2106639.7e-07-4.94-5.590Analysis based on 16 observations spanning 1.9366 days (2009-Mar-27.40474 to 2009-Mar-29.3413). Diameter approximately 0.106 km. from mean, weighted H=22.5.
Assessment postings were noted by A/CC on 29 March & 30 March   -   References: MPECs 2009-F92 & 2009-F96
2009 FG19NEODyS1452 March 292022-2087315.83e-08-3.12-3.520Based on 50 optical observations (of which 0 are rejected as outliers) from 2009/03/21.449 to 2009/03/28.390.
JPL Sentry1451 March 292022-2103285.8e-08-3.13-3.540Analysis based on 50 observations spanning 6.9411 days (2009-Mar-21.44815 to 2009-Mar-28.38925). Diameter approximately 0.825 km. from mean, weighted H=18.1.
Assessment postings were noted by A/CC on 23 March, 24 March, 26 March, 27 March, 28 March & 29 March   -   References: MPECs 2009-F65, 2009-F77, 2009-F89, 2009-F91 & 2009-F95
2009 FZ4NEODyS1557 March 212014-2088813.27e-07-6.31-6.890Based on 11 optical observations (of which 0 are rejected as outliers) from 2009/03/19.371 to 2009/03/19.970.
JPL Sentry0425 March 212013-21084422.4e-06-5.44-6.340Analysis based on 11 observations spanning .59999 days (2009-Mar-19.36974 to 2009-Mar-19.96973). Diameter approximately 0.031 km. from mean, weighted H=25.2.
Assessment postings were noted by A/CC on 20 March & 21 March   -   References: MPEC 2009-F43
2009 FJNEODyS1452 March 292058-208864.38e-05-4.38-4.400Based on 111 optical observations (of which 7 are rejected as outliers) from 2009/03/17.245 to 2009/03/28.280.
JPL Sentry1451 March 292058-2107114.5e-05-4.37-4.400Analysis based on 104 observations spanning 10.970 days (2009-Mar-17.30916 to 2009-Mar-28.27925). Diameter approximately 0.036 km. from mean, weighted H=24.9.
Assessment postings were noted by A/CC on 17 March, 18 March, 19 March, 20 March, 21 March, 23 March, 24 March, 27 March & 29 March   -   References: MPECs 2009-F14, 2009-F21, 2009-F33, 2009-F35, 2009-F53, 2009-F62, 2009-F67, 2009-F89 & 2009-F95
2009 FGNEODyS1452 March 292049-2090234.46e-06-5.78-6.190Based on 56 optical observations (of which 0 are rejected as outliers) from 2009/03/16.399 to 2009/03/28.215.
JPL Sentry1451 March 292022-2103235.1e-06-5.71-6.180Analysis based on 56 observations spanning 11.816 days (2009-Mar-16.3986 to 2009-Mar-28.2144). Diameter approximately 0.027 km. from mean, weighted H=25.5.
Assessment postings were noted by A/CC on 17 March, 18 March, 19 March, 20 March, 21 March, 22 March, 23 March, 24 March, 25 March, 28 March & 29 March   -   References: MPECs 2009-F12, 2009-F21, 2009-F33, 2009-F35, 2009-F59, 2009-F74, 2009-F91 & 2009-F95
2009 FENEODyS1452 March 29204414.46e-06-3.51-3.510Based on 62 optical observations (of which 0 are rejected as outliers) from 2009/03/16.280 to 2009/03/28.492.
JPL Sentry1451 March 292044-210124.2e-06-3.53-3.530Analysis based on 62 observations spanning 12.212 days (2009-Mar-16.27919 to 2009-Mar-28.49161). Diameter approximately 0.180 km. from mean, weighted H=21.3.
Assessment postings were noted by A/CC on 17 March, 18 March, 19 March, 20 March, 21 March, 23 March, 24 March, 25 March, 28 March & 29 March   -   References: MPECs 2009-F10, 2009-F33, 2009-F35, 2009-F53, 2009-F67, 2009-F74, 2009-F91 & 2009-F95
2009 EJ1NEODyS1614 March 42025-2090301.72e-07-8.26-8.840Based on 21 optical observations (of which 0 are rejected as outliers) from 2009/03/03.280 to 2009/03/03.605.
JPL Sentry1901 March 32036-208695.9e-09-9.78-9.980Analysis based on 21 observations spanning .32485 days (2009-Mar-03.27933 to 2009-Mar-03.60418). Diameter approximately 0.008 km. from mean, weighted H=28.2.
Assessment postings were noted by A/CC on 3 March & 4 March   -   References: MPEC 2009-E35
2009 EH1NEODyS1550 March 6204511.15e-09-10.22-10.220Based on 22 optical observations (of which 1 are rejected as outliers) from 2009/03/03.258 to 2009/03/05.910.
JPL Sentry1550 March 62060-209421.5e-09-10.34-10.60Analysis based on 21 observations spanning 2.6511 days (2009-Mar-03.25773 to 2009-Mar-05.90881). Diameter approximately 0.009 km. from mean, weighted H=27.9.
Assessment postings were noted by A/CC on 3 March, 4 March & 6 March   -   References: MPECs 2009-E34 & 2009-E41
2009 EWJPL Sentry1703 March 7207514.9e-07-7.06-7.060Analysis based on 53 observations spanning 3.8331 days (2009-Mar-02.29194 to 2009-Mar-06.124991). Diameter approximately 0.018 km. from mean, weighted H=26.4.
NEODyS1624 March 72075-208125.29e-07-7.03-7.050Based on 53 optical observations (of which 0 are rejected as outliers) from 2009/03/02.293 to 2009/03/06.126.
Assessment postings were noted by A/CC on 3 March, 4 March, 5 March, 6 March & 7 March   -   References: MPECs 2009-E23, 2009-E38, 2009-E39, 2009-E40, 2009-E41 & 2009-E42
C   L   E   A   R   E   D
2009 FU30JPL Sentry1451 March 29R E M O V E DRisk listing removed at 0929 UTC 29 March
An assessment posting was noted by A/CC on 29 March   -   References: MPECs 2009-F93 & 2009-F95
2009 FZ10JPL Sentry1451 March 29R E M O V E DRisk listing removed at 0852 UTC 29 March
Assessment postings were noted by A/CC on 21 March, 22 March, 23 March, 24 March & 29 March   -   References: MPECs 2009-F58, 2009-F59, 2009-F62, 2009-F95 & 2009-F96
2009 FY10JPL Sentry1326 March 23R E M O V E DRisk listing removed at 0935 UTC 23 March
NEODyS1326 March 23R E M O V E D
Assessment postings were noted by A/CC on 21 March, 22 March & 23 March   -   References: MPECs 2009-F57, 2009-F62 & 2009-F91
2009 FV4JPL Sentry0330 March 24R E M O V E DRisk listing removed at 0852 UTC 23 March
NEODyS1326 March 23R E M O V E D
Assessment postings were noted by A/CC on 20 March, 21 March, 23 March & 24 March   -   References: MPECs 2009-F39, 2009-F62, 2009-F74 & 2009-F95
2009 FU4JPL Sentry1355 March 24R E M O V E DRisk listing removed at 0949 UTC 24 March
NEODyS1326 March 23R E M O V E D
Assessment postings were noted by A/CC on 20 March, 21 March, 23 March & 24 March   -   References: MPECs 2009-F38, 2009-F62, 2009-F67, 2009-F74, 2009-F89 & 2009-F96
2009 FS4JPL Sentry0330 March 24R E M O V E DRisk listing removed at 0851 UTC 22 March
NEODyS1326 March 23R E M O V E D
Assessment postings were noted by A/CC on 20 March, 21 March, 22 March, 23 March & 24 March   -   References: MPECs 2009-F36, 2009-F46, 2009-F59, 2009-F62, 2009-F74 & 2009-F89
2009 FG1NEODyS1400 March 25R E M O V E D
JPL Sentry1400 March 25R E M O V E DRisk listing removed at 0853 UTC 25 March
Assessment postings were noted by A/CC on 18 March, 19 March, 20 March, 21 March, 22 March, 23 March, 24 March & 25 March   -   References: MPECs 2009-F29, 2009-F33, 2009-F35, 2009-F53, 2009-F59, 2009-F67, 2009-F74, 2009-F77, 2009-F91 & 2009-F104
2009 FSJPL Sentry1326 March 23R E M O V E DRisk listing removed at 0931 UTC 23 March
NEODyS1326 March 23R E M O V E D
Assessment postings were noted by A/CC on 18 March, 19 March, 21 March & 23 March   -   References: MPECs 2009-F26, 2009-F33, 2009-F53, 2009-F62, 2009-F74 & 2009-F104
2009 FPJPL Sentry0330 March 24R E M O V E DRisk listing removed at 0852 UTC 22 March
Assessment postings were noted by A/CC on 17 March, 18 March, 19 March, 20 March, 21 March, 22 March, 23 March & 24 March   -   References: MPECs 2009-F20, 2009-F21, 2009-F33, 2009-F35, 2009-F53, 2009-F59 & 2009-F74
2009 FKJPL Sentry1456 March 19R E M O V E DRisk listing removed at 0856 UTC 19 March
Assessment postings were noted by A/CC on 17 March & 19 March   -   References: MPECs 2009-F15, 2009-F33 & 2009-F62
2009 EN2NEODyS1456 March 19R E M O V E D
JPL Sentry1456 March 19R E M O V E DRisk listing removed at 1151 UTC 19 March
Assessment postings were noted by A/CC on 7 March, 8 March & 19 March   -   References: MPECs 2009-E45, 2009-F33 & 2009-F35
2009 EK1NEODyS1432 March 16R E M O V E D
JPL Sentry1432 March 16R E M O V E DRisk listing removed at 0939 UTC 16 March
Assessment postings were noted by A/CC on 4 March, 6 March & 16 March   -   References: MPECs 2009-E36, 2009-E41, 2009-F02, 2009-F08 & 2009-F59
2009 EE1JPL Sentry1550 March 6R E M O V E DRisk listing removed at 1215 UTC 6 March
Assessment postings were noted by A/CC on 3 March & 6 March   -   References: MPECs 2009-E31, 2009-E41, 2009-F02 & 2009-F08
2009 EVJPL Sentry1423 March 18R E M O V E DRisk listing removed at 1016 UTC 18 March
NEODyS1423 March 18R E M O V E D
Assessment postings were noted by A/CC on 3 March, 4 March & 18 March   -   References: MPECs 2009-E22, 2009-F21 & 2009-F33
2009 ESJPL Sentry1423 March 18R E M O V E DRisk listing removed at 1056 UTC 18 March
NEODyS1423 March 18R E M O V E D
Assessment postings were noted by A/CC on 3 March, 4 March & 18 March   -   References: MPECs 2009-E19, 2009-F21, 2009-F74 & 2009-F95
2009 DO111JPL Sentry0330 March 24R E M O V E DRisk listing removed at 0657 UTC 21 March
NEODyS1456 March 19R E M O V E D
Assessment postings were noted by A/CC on 15 March, 16 March, 17 March, 18 March, 19 March, 20 March, 21 March, 23 March & 24 March   -   References: MPECs 2009-E70, 2009-F02, 2009-F08, 2009-F21, 2009-F33, 2009-F35, 2009-F53, 2009-F59, 2009-F62 & 2009-F77, radar: 21 March
2009 DE47JPL Sentry1600 March 3R E M O V E DRisk listing removed at 1031 UTC 3 March
Assessment postings were noted by A/CC on 2 March & 3 March   -   References: MPECs 2009-E13, 2009-E15, 2009-E38, 2009-E39, 2009-E62, 2009-F35, 2009-F59, 2009-F74, 2009-F77 & 2009-F95
2009 DL46JPL Sentry1536 March 4R E M O V E DRisk listing removed at 1134 UTC 4 March
Assessment postings were noted by A/CC on 2 March, 3 March & 4 March   -   References: MPECs 2009-E08, 2009-E15, 2009-E38, 2009-F02, 2009-F08, 2009-F59 & 2009-F91
2009 DB45JPL Sentry1559 March 1R E M O V E DRisk listing removed at 0949 UTC 1 March
An assessment posting was noted by A/CC on 1 March   -   References: MPECs 2009-E01, 2009-E15 & 2009-F08
2009 DA45JPL Sentry1559 March 1R E M O V E DRisk listing removed at 0948 UTC 1 March
An assessment posting was noted by A/CC on 1 March   -   References: MPECs 2009-E01, 2009-E38, 2009-F02, 2009-F08, 2009-F21, 2009-F33, 2009-F35, 2009-F74, 2009-F89 & 2009-F91
2009 DV43JPL Sentry1559 March 1R E M O V E DRisk listing removed at 1028 UTC 1 March
NEODyS1559 March 1R E M O V E D
Assessment postings were noted by A/CC on 1 March   -   References: MPECs 2009-E01, 2009-E11, 2009-E15, 2009-E38, 2009-E48, 2009-E50, 2009-E67 & 2009-F77
2009 DT43NEODyS1500 March 2R E M O V E D
JPL Sentry1500 March 2R E M O V E DRisk listing removed at 0950 UTC 2 March
Assessment postings were noted by A/CC on 2 March   -   References: MPECs 2009-E11 & 2009-E15
2009 DS43JPL Sentry1559 March 1R E M O V E DRisk listing removed at 0954 UTC 1 March
NEODyS1559 March 1R E M O V E D
Assessment postings were noted by A/CC on 1 March   -   References: MPECs 2009-E01 & 2009-E11
2009 DC43NEODyS1536 March 4R E M O V E D
JPL Sentry1600 March 3R E M O V E DRisk listing removed at 0951 UTC 3 March
Assessment postings were noted by A/CC on 1 March, 3 March & 4 March   -   References: MPECs 2009-E01, 2009-E15, 2009-E38 & 2009-F21
2009 DZ42JPL Sentry1418 March 13R E M O V E DRisk listing removed at 0850 UTC 13 March
NEODyS1418 March 13R E M O V E D
Assessment postings were noted by A/CC on 2 March, 3 March, 4 March & 13 March   -   References: MPECs 2009-E11, 2009-E15, 2009-E38, 2009-E62, 2009-E64, 2009-F21, 2009-F74 & 2009-F104
2009 DV42JPL Sentry1559 March 1R E M O V E DRisk listing removed at 0948 UTC 1 March
NEODyS1559 March 1R E M O V E D
Assessment postings were noted by A/CC on 1 March   -   References: MPECs 2009-E01, 2009-E15, 2009-E38, 2009-E41, 2009-F02, 2009-F21, 2009-F67 & 2009-F74

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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