A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted During January 2008

Compiled at 2359 UTC on 31 January 2008


<< December 2007 CRT | CRT Archive Index | February 2008 CRT >>

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

Something missing? Here are 99942 Apophis (2004 MN4) and 144898 2004 VD17. Check the archives for others.

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		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
2008 BO16JPL Sentry1628 Jan. 312021-2107694.9e-07-4.87-5.650Analysis based on 11 observations spanning .92247 days (2008-Jan-30.38083 to 2008-Jan-31.3033). Diameter approximately 0.098 km. from mean, weighted H=22.7.
Assessment postings were noted by A/CC on 31 Jan.   -   References: MPEC 2008-B69
2008 BN16JPL Sentry1758 Jan. 312029-2108421.5e-06-6.27-6.770Analysis based on 15 observations spanning 1.0974 days (2008-Jan-30.24765 to 2008-Jan-31.34506). Diameter approximately 0.022 km. from mean, weighted H=25.9.
Assessment postings were noted by A/CC on 31 Jan.   -   References: MPEC 2008-B68
2008 BE15NEODyS1531 Jan. 312027-207453.41e-09-7.80-8.030Based on 20 optical observations (of which 0 are rejected as outliers) from 2008/01/30.384 to 2008/01/30.483.
JPL Sentry1530 Jan. 312027-2098247.8e-08-6.86-7.280Analysis based on 20 observations spanning .09912 days (2008-Jan-30.3833 to 2008-Jan-30.48242). Diameter approximately 0.041 km. from mean, weighted H=24.6.
Assessment postings were noted by A/CC on 30 Jan. & 31 Jan.   -   References: MPEC 2008-B65 plus DOU 2008-B67
2008 BD15JPL Sentry2334 Jan. 312008-21072336.6e-07-2.91-2.960Analysis based on 15 observations spanning .12929 days (2008-Jan-30.31301 to 2008-Jan-30.4423). Diameter approximately 0.250 km. from mean, weighted H=20.7.
Assessment postings were noted by A/CC on 31 Jan.   -   References: MPEC 2008-B64
2008 BC15NEODyS1531 Jan. 31207211.03e-06-6.64-6.640Based on 21 optical observations (of which 1 are rejected as outliers) from 2008/01/30.313 to 2008/01/30.725.
JPL Sentry1530 Jan. 312072-209421.9e-06-6.42-6.610Analysis based on 21 observations spanning .41244 days (2008-Jan-30.31193 to 2008-Jan-30.72437). Diameter approximately 0.016 km. from mean, weighted H=26.7.
Assessment postings were noted by A/CC on 30 Jan. & 31 Jan.   -   References: MPEC 2008-B63 plus DOU 2008-B67
2008 AF4NEODyS1531 Jan. 312079-2090123.83e-06-3.13-3.270Based on 332 optical observations (of which 4 are rejected as outliers) from 2008/01/10.397 to 2008/01/31.016.
JPL Sentry1530 Jan. 312088-2100251.7e-05-2.51-3.130Analysis based on 328 observations spanning 20.618 days (2008-Jan-10.39652 to 2008-Jan-31.01493). Diameter approximately 0.379 km. from mean, weighted H=19.8.
Assessment postings were noted by A/CC on 12 Jan., 15 Jan., 16 Jan., 17 Jan., 18 Jan., 20 Jan., 21 Jan., 22 Jan., 23 Jan., 24 Jan., 26 Jan., 27 Jan., 28 Jan., 29 Jan., 30 Jan. & 31 Jan.   -   References: MPEC 2008-A45 plus DOUs 2008-A73, 2008-B01, 2008-B12, 2008-B14, 2008-B17, 2008-B21, 2008-B27, 2008-B28, 2008-B37, 2008-B38, 2008-B50, 2008-B51, 2008-B53, 2008-B58, 2008-B62 & 2008-B67
2007 YS56JPL Sentry1544 Jan. 12210417.1e-08-7.91-7.910Analysis based on 49 observations spanning 11.051 days (2007-Dec-31.24562 to 2008-Jan-11.29675). Diameter approximately 0.023 km. from mean, weighted H=25.8.
Assessment postings were noted by A/CC on 2 Jan., 3 Jan., 4 Jan., 5 Jan., 6 Jan. & 12 Jan.   -   References: MPEC 2008-A13 plus DOUs 2008-A20, 2008-A22, 2008-A24, 2008-A26 & 2008-A52
2007 VK184NEODyS1544 Jan. 122048-207163.43e-04-1.82-1.831Based on 102 optical observations (of which 1 are rejected as outliers) from 2007/11/12.140 to 2008/01/11.153.
JPL Sentry2356 Jan. 112048-205743.4e-04-1.82-1.831Analysis based on 101 observations spanning 60.013 days (2007-Nov-12.13904 to 2008-Jan-11.15189). Diameter approximately 0.130 km. from mean, weighted H=22.0.
Assessment postings were noted by A/CC on 5 Jan., 11 Jan. & 12 Jan.   -   References: DOUs 2008-A24 & 2008-A52
C   L   E   A   R   E   D
2008 AN33JPL Sentry0235 Jan. 20R E M O V E DRisk listing removed at 0226 UTC 20 Jan.
NEODyS1549 Jan. 18R E M O V E D
Assessment postings were noted by A/CC on 16 Jan., 17 Jan., 18 Jan. & 20 Jan.   -   References: MPEC 2008-B08 plus DOUs 2008-B12, 2008-B14, 2008-B17, 2008-B21, 2008-B27, 2008-B47, 2008-B53, 2008-B62 & 2008-B67
2008 AL33JPL Sentry1549 Jan. 18R E M O V E DRisk listing removed at 1122 UTC 18 Jan.
NEODyS1549 Jan. 18R E M O V E D
Assessment postings were noted by A/CC on 16 Jan., 17 Jan. & 18 Jan.   -   References: MPEC 2008-B06 plus DOUs 2008-B12, 2008-B14, 2008-B17, 2008-B62 & 2008-B67
2008 AK33JPL Sentry1522 Jan. 21R E M O V E DRisk listing removed at 1043 UTC 21 Jan.
NEODyS1522 Jan. 21R E M O V E D
Assessment postings were noted by A/CC on 16 Jan., 17 Jan., 19 Jan., 20 Jan. & 21 Jan.   -   References: MPEC 2008-B05 plus DOUs 2008-B12, 2008-B17, 2008-B27, 2008-B38, 2008-B47, 2008-B58 & 2008-B62
2008 AG33JPL Sentry1549 Jan. 20R E M O V E DRisk listing removed at 1112 UTC 20 Jan.
NEODyS1549 Jan. 20R E M O V E D
Assessment postings were noted by A/CC on 16 Jan., 17 Jan. & 20 Jan.   -   References: MPEC 2008-B02 plus DOUs 2008-B17, 2008-B21 & 2008-B27
2008 AS28JPL Sentry0100 Jan. 29R E M O V E DRisk listing removed at 0047 UTC 29 Jan.
NEODyS1549 Jan. 18R E M O V E D
Assessment postings were noted by A/CC on 12 Jan., 13 Jan., 15 Jan., 18 Jan. & 29 Jan.   -   References: MPEC 2008-A53 plus DOUs 2008-A60, 2008-A73, 2008-B14 & 2008-B53
2008 AE4JPL Sentry1535 Jan. 13R E M O V E DRisk listing removed at 1248 UTC 13 Jan.
Assessment postings were noted by A/CC on 11 Jan. & 13 Jan.   -   References: MPEC 2008-A44 plus DOUs 2008-A60, 2008-A67, 2008-B14, 2008-B17, 2008-B37, 2008-B38 & 2008-B47
2008 AEJPL Sentry1412 Jan. 4R E M O V E DRisk listing removed at 1225 UTC 4 Jan.
NEODyS1412 Jan. 4R E M O V E D
Assessment postings were noted by A/CC on 2 Jan., 3 Jan. & 4 Jan.   -   References: MPECs 2008-A18 & 2008-B52 plus DOUs 2008-A22, 2008-A24, 2008-A26, 2008-A60, 2008-B01, 2008-B17, 2008-B21, 2008-B58 & 2008-B67
2007 YV56JPL Sentry1530 Jan. 31R E M O V E DRisk listing removed at 1109 UTC 31 Jan.
NEODyS1412 Jan. 4R E M O V E D
Assessment postings were noted by A/CC on 2 Jan., 3 Jan., 4 Jan., 5 Jan., 6 Jan., 30 Jan. & 31 Jan.   -   References: MPEC 2008-A16 plus DOUs 2008-A22, 2008-A24, 2008-A26, 2008-A36, 2008-A43, 2008-B01, 2008-B17, 2008-B62 & 2008-B67
2007 YQ56JPL Sentry0532 Jan. 20R E M O V E DRisk listing removed at 0358 UTC 20 Jan.
NEODyS1544 Jan. 12R E M O V E D
Assessment postings were noted by A/CC on 3 Jan., 5 Jan., 6 Jan., 8 Jan., 11 Jan., 12 Jan., 13 Jan. & 20 Jan.   -   References: MPEC 2008-A11 plus DOUs 2008-A24, 2008-A26, 2008-A35, 2008-A43, 2008-A52, 2008-A60, 2008-B17, 2008-B21, 2008-B27 & 2008-B62
2007 YM56JPL Sentry1555 Jan. 5R E M O V E DRisk listing removed at 1432 UTC 5 Jan.
Assessment postings were noted by A/CC on 2 Jan. & 5 Jan.   -   References: MPEC 2008-A07 plus DOUs 2008-A24, 2008-A43, 2008-A52, 2008-A60, 2008-A67, 2008-A73, 2008-B14, 2008-B21 & 2008-B62
2007 YB2JPL Sentry1555 Jan. 5R E M O V E DRisk listing removed at 1241 UTC 5 Jan.
NEODyS1555 Jan. 5R E M O V E D
Assessment postings were noted by A/CC on 31 Dec., 1 Jan. & 5 Jan.   -   References: DOUs 2007-Y60, 2008-A01, 2008-A24, 2008-A35, 2008-A60, 2008-B01, 2008-B27, 2008-B28, 2008-B47 & 2008-B67
2007 YG1JPL Sentry0029 Jan. 3R E M O V E DRisk listing removed at 0004 UTC 3 Jan.
NEODyS1451 Dec. 31R E M O V E D
Assessment postings were noted by A/CC on 31 Dec. & 3 Jan.   -   References: no MPECs
2007 XK11JPL Sentry1452 Dec. 31R E M O V E DRisk listing removed at 1121 UTC 31 Dec.
Assessment postings were noted by A/CC on 31 Dec.   -   References: DOUs 2007-Y60, 2008-A01, 2008-A24, 2008-A73 & 2008-B62
2007 USNEODyS1601 Jan. 11R E M O V E D
JPL Sentry1533 Jan. 11R E M O V E DRisk listing removed at 1152 UTC 11 Jan.
Assessment postings were noted by A/CC on 11 Jan.   -   References: DOU 2008-A43

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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