A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted During February 2011

Compiled at 2359 UTC on 28 February 2011

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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
2011 DU9NEODyS1654 Feb. 282022-2082218.36e-05-4.55-4.930Based on 21 optical observations (of which 0 are rejected as outliers) from 2011-02-27.018 to 2011-02-27.589.
JPL Sentry0100 Feb. 282022-2082258.5e-05-4.56-4.910Analysis based on 21 observations spanning .57180 days (2011-Feb-27.01686 to 2011-Feb-27.58866). Diameter approximately 0.016 km. from mean, weighted H=26.6.
Assessment postings were noted by A/CC on 28 Feb.   -   References: MPEC 2011-D47
2011 DS9NEODyS1654 Feb. 282015-20891101.63e-06-2.84-3.170Based on 26 optical observations (of which 0 are rejected as outliers) from 2011-02-25.929 to 2011-02-27.567.
JPL Sentry1654 Feb. 282015-21102142.5e-06-2.69-3.020Analysis based on 26 observations spanning 1.6383 days (2011-Feb-25.92799 to 2011-Feb-27.56632). Diameter approximately 0.329 km. from mean, weighted H=20.1.
Assessment postings were noted by A/CC on 26 Feb., 27 Feb. & 28 Feb.   -   References: MPEC 2011-D44 plus DOU 2011-D49
2011 DE5NEODyS1654 Feb. 282018-205842.54e-05-4.31-4.310Based on 20 optical observations (of which 0 are rejected as outliers) from 2011-02-25.340 to 2011-02-27.519.
JPL Sentry1654 Feb. 282018-209832.6e-05-4.30-4.300Analysis based on 20 observations spanning 2.1788 days (2011-Feb-25.33918 to 2011-Feb-27.51803). Diameter approximately 0.018 km. from mean, weighted H=26.4.
Assessment postings were noted by A/CC on 26 Feb., 27 Feb. & 28 Feb.   -   References: MPEC 2011-D43 plus DOU 2011-D49
2011 DX4NEODyS2102 Feb. 262057-205713.7e-11-10.55-10.550Based on 12 optical observations (of which 0 are rejected as outliers) from 2011-02-25.191 to 2011-02-25.365.
JPL Sentry0150 Feb. 262012-2111439.8e-08-7.36-7.680Analysis based on 12 observations spanning .17442 days (2011-Feb-25.19028 to 2011-Feb-25.3647). Diameter approximately 0.016 km. from mean, weighted H=26.6.
Assessment postings were noted by A/CC on 26 Feb.   -   References: MPEC 2011-D39
2011 DVNEODyS2102 Feb. 262026-2090834.21e-05-2.23-2.730Based on 15 optical observations (of which 0 are rejected as outliers) from 2011-02-22.517 to 2011-02-25.519.
JPL Sentry1717 Feb. 242016-21103036.1e-06-3.29-3.970Analysis based on 8 observations spanning 1.6597 days (2011-Feb-22.51614 to 2011-Feb-24.1758). Diameter approximately 0.219 km. from mean, weighted H=20.9.
Assessment postings were noted by A/CC on 24 Feb., 25 Feb. & 26 Feb.   -   References: MPEC 2011-D34 plus DOU 2011-D41
2011 DSNEODyS1654 Feb. 282065-2089111.49e-05-6.13-6.310Based on 33 optical observations (of which 0 are rejected as outliers) from 2011-02-23.400 to 2011-02-27.480.
JPL Sentry1654 Feb. 282065-2108191.8e-05-6.06-6.300Analysis based on 33 observations spanning 4.0801 days (2011-Feb-23.39905 to 2011-Feb-27.47917). Diameter approximately 0.013 km. from mean, weighted H=27.1.
Assessment postings were noted by A/CC on 24 Feb., 26 Feb., 27 Feb. & 28 Feb.   -   References: MPEC 2011-D31 plus DOUs 2011-D41, 2011-D46 & 2011-D49
2011 CF66JPL Sentry2300 Feb. 242012-20785878.2e-06-5.99-6.810Analysis based on 11 observations spanning .17761 days (2011-Feb-13.33976 to 2011-Feb-13.51737). Diameter approximately 0.010 km. from mean, weighted H=27.8.
NEODyS2232 Feb. 152024-2089459.3e-07-7.31-7.840Based on 11 optical observations (of which 0 are rejected as outliers) from 2011-02-13.341 to 2011-02-13.518.
Assessment postings were noted by A/CC on 15 Feb. & 24 Feb.   -   References: MPEC 2011-C94
2011 CL50NEODyS1744 Feb. 202043-2090661.8e-05-6.28-6.990Based on 28 optical observations (of which 0 are rejected as outliers) from 2011-02-12.463 to 2011-02-20.118.
JPL Sentry1744 Feb. 202036-2110884.3e-05-5.99-7.050Analysis based on 28 observations spanning 7.6547 days (2011-Feb-12.46221 to 2011-Feb-20.116917). Diameter approximately 0.010 km. from mean, weighted H=27.6.
Assessment postings were noted by A/CC on 14 Feb., 15 Feb., 16 Feb. & 20 Feb.   -   References: MPEC 2011-C89 plus DOUs 2011-C96, 2011-D04 & 2011-D18
2011 CW46NEODyS1705 Feb. 132021-2090458.6e-07-5.49-5.880Based on 11 optical observations (of which 0 are rejected as outliers) from 2011-02-11.241 to 2011-02-12.339.
JPL Sentry1645 Feb. 122021-21081311.1e-06-5.51-5.870Analysis based on 11 observations spanning 1.0974 days (2011-Feb-11.24048 to 2011-Feb-12.33793). Diameter approximately 0.039 km. from mean, weighted H=24.7.
Assessment postings were noted by A/CC on 12 Feb. & 13 Feb.   -   References: MPEC 2011-C75
2011 CU46NEODyS1705 Feb. 132020-20903111.57e-05-4.95-5.630Based on 14 optical observations (of which 0 are rejected as outliers) from 2011-02-11.176 to 2011-02-12.300.
JPL Sentry1804 Feb. 122020-21104142.3e-05-4.82-5.620Analysis based on 14 observations spanning 1.1236 days (2011-Feb-11.17573 to 2011-Feb-12.29932). Diameter approximately 0.028 km. from mean, weighted H=25.4.
Assessment postings were noted by A/CC on 12 Feb. & 13 Feb.   -   References: MPEC 2011-C73
2011 CF22NEODyS1622 Feb. 92022-2090991.48e-05-7.34-8.060Based on 10 optical observations (of which 0 are rejected as outliers) from 2011-02-07.377 to 2011-02-07.485.
JPL Sentry2232 Feb. 82022-21111704.4e-05-7.04-7.890Analysis based on 10 observations spanning .10754 days (2011-Feb-07.37648 to 2011-Feb-07.48402). Diameter approximately 0.002 km. from mean, weighted H=30.9.
Assessment postings were noted by A/CC on 8 Feb. & 9 Feb.   -   References: MPEC 2011-C50
2011 CC22NEODyS1646 Feb. 122045-204511.5e-11-8.69-8.690Based on 28 optical observations (of which 0 are rejected as outliers) from 2011-02-06.262 to 2011-02-10.323.
JPL Sentry1645 Feb. 12R E M O V E DRisk listing removed at 1129 UTC 12 Feb.
Assessment postings were noted by A/CC on 8 Feb., 9 Feb. & 12 Feb.   -   References: MPEC 2011-C47 plus DOU 2011-C69
2011 CA7NEODyS1621 Feb. 92062-207135.21e-07-8.95-9.190Based on 16 optical observations (of which 0 are rejected as outliers) from 2011-02-07.375 to 2011-02-08.322.
JPL Sentry1621 Feb. 92062-209935.4e-07-8.93-9.150Analysis based on 16 observations spanning .94712 days (2011-Feb-07.3744 to 2011-Feb-08.321518). Diameter approximately 0.003 km. from mean, weighted H=30.3.
Assessment postings were noted by A/CC on 7 Feb., 8 Feb. & 9 Feb.   -   References: MPEC 2011-C35 plus DOUs 2011-C44 & 2011-C57
2011 BA60NEODyS1717 Feb. 242038-208045.78e-10-7.29-7.330Based on 7 optical observations (of which 0 are rejected as outliers) from 2011-01-29.261 to 2011-01-31.237.
JPL Sentry0301 Feb. 242081-2107391.3e-08-6.69-8.160Analysis based on 7 observations spanning 1.9754 days (2011-Jan-29.26046 to 2011-Jan-31.235902). Diameter approximately 0.123 km. from mean, weighted H=22.1.
Assessment postings were noted by A/CC on 24 Feb.   -   References: MPEC 2011-D26
2011 BU59NEODyS1746 Feb. 172072-208641.92e-07-7.36-7.720Based on 10 optical observations (of which 0 are rejected as outliers) from 2011-01-30.476 to 2011-02-07.563.
JPL Sentry1727 Feb. 162085-2110151.3e-05-5.72-5.810Analysis based on 10 observations spanning 8.0869 days (2011-Jan-30.47535 to 2011-Feb-07.562215). Diameter approximately 0.020 km. from mean, weighted H=26.2.
Assessment postings were noted by A/CC on 16 Feb. & 17 Feb.   -   References: MPEC 2011-D05
2011 BT59NEODyS1727 Feb. 162041-208141.0e-08-5.24-5.250Based on 8 optical observations (of which 0 are rejected as outliers) from 2011-01-30.537 to 2011-02-07.530.
JPL Sentry0411 Feb. 162041-2107112.6e-07-4.30-4.650Analysis based on 8 observations spanning 7.9934 days (2011-Jan-30.53603 to 2011-Feb-07.529449). Diameter approximately 0.180 km. from mean, weighted H=21.3.
Assessment postings were noted by A/CC on 16 Feb.   -   References: MPEC 2011-D02
2011 BQ50NEODyS1646 Feb. 122082-208212.9e-08-9.45-9.450Based on 25 optical observations (of which 1 are rejected as outliers) from 2011-01-30.403 to 2011-02-11.415.
JPL Sentry1645 Feb. 122079-210721.4e-06-7.93-8.140Analysis based on 25 observations spanning 12.011 days (2011-Jan-30.4027 to 2011-Feb-11.41411). Diameter approximately 0.007 km. from mean, weighted H=28.3.
Assessment postings were noted by A/CC on 3 Feb., 4 Feb., 6 Feb., 7 Feb., 9 Feb. & 12 Feb.   -   References: MPEC 2011-C10 plus DOUs 2011-C27, 2011-C34, 2011-C57 & 2011-C69
2011 BM45JPL Sentry2300 Feb. 242078-209064.3e-05-2.53-2.551Analysis based on 39 observations spanning 13.872 days (2011-Jan-30.4027 to 2011-Feb-13.275). Diameter approximately 0.160 km. from mean, weighted H=21.7.
NEODyS1705 Feb. 132071-208674.22e-05-2.44-2.461Based on 39 optical observations (of which 0 are rejected as outliers) from 2011-01-30.403 to 2011-02-13.276.
Assessment postings were noted by A/CC on 3 Feb., 4 Feb., 7 Feb., 8 Feb., 9 Feb., 11 Feb., 13 Feb. & 24 Feb.   -   References: MPEC 2011-C09 plus DOUs 2011-C11, 2011-C34, 2011-C44, 2011-C57, 2011-C68 & 2011-C81
2011 BL45NEODyS1705 Feb. 132050-2090262.26e-04-4.92-5.090Based on 23 optical observations (of which 1 are rejected as outliers) from 2011-01-30.345 to 2011-02-12.201.
JPL Sentry1705 Feb. 132050-2105573.2e-04-4.92-5.160Analysis based on 22 observations spanning 12.856 days (2011-Jan-30.34391 to 2011-Feb-12.19974). Diameter approximately 0.013 km. from mean, weighted H=27.2.
Assessment postings were noted by A/CC on 4 Feb., 7 Feb., 8 Feb., 9 Feb., 10 Feb., 11 Feb. & 13 Feb.   -   References: MPEC 2011-C08 plus DOUs 2011-C34, 2011-C44, 2011-C57, 2011-C66, 2011-C68 & 2011-C81
2011 BP40JPL Sentry2240 Feb. 72011-21095852.5e-05-4.39-5.330Analysis based on 6 observations spanning .94379 days (2011-Jan-30.40349 to 2011-Jan-31.347281). Diameter approximately 0.031 km. from mean, weighted H=25.2.
NEODyS1641 Feb. 22013-2085804.01e-06-4.97-5.750Based on 6 optical observations (of which 0 are rejected as outliers) from 2011-01-30.404 to 2011-01-31.348.
Assessment postings were noted by A/CC on 2 Feb. & 7 Feb.   -   References: MPEC 2011-C02
2011 BH40NEODyS1836 Feb. 12036-2089111.58e-08-7.81-8.20Based on 12 optical observations (of which 0 are rejected as outliers) from 2011-01-30.424 to 2011-01-30.490.
An assessment posting was noted by A/CC on 1 Feb.   -   References: no MPECs
2011 BF40NEODyS1736 Feb. 42083-208313.8e-07-6.33-6.330Based on 25 optical observations (of which 0 are rejected as outliers) from 2011-01-30.356 to 2011-02-03.389.
JPL Sentry1736 Feb. 4208313.1e-07-6.39-6.390Analysis based on 25 observations spanning 4.0330 days (2011-Jan-30.35537 to 2011-Feb-03.38834). Diameter approximately 0.037 km. from mean, weighted H=24.8.
Assessment postings were noted by A/CC on 1 Feb., 3 Feb. & 4 Feb.   -   References: DOUs 2011-C01, 2011-C07 & 2011-C11
2011 BT15NEODyS2015 Feb. 272037-2090854.83e-05-3.05-3.690Based on 54 optical observations (of which 3 are rejected as outliers) from 2011-01-24.290 to 2011-02-26.271.
JPL Sentry2015 Feb. 272037-21101219.5e-05-2.82-3.640Analysis based on 53 observations spanning 32.981 days (2011-Jan-24.28933 to 2011-Feb-26.27045). Diameter approximately 0.150 km. from mean, weighted H=21.8.
Assessment postings were noted by A/CC on 2 Feb., 5 Feb., 6 Feb., 7 Feb., 8 Feb., 20 Feb., 22 Feb., 23 Feb., 25 Feb. & 27 Feb.   -   References: DOUs 2011-C03, 2011-C17, 2011-C27, 2011-C34, 2011-C44, 2011-D18, 2011-D22, 2011-D23, 2011-D37 & 2011-D46
2011 AM37JPL Sentry0359 Feb. 252044-21081211.1e-03-5.43-5.780Analysis based on 17 observations spanning 1.0662 days (2011-Jan-13.33014 to 2011-Jan-14.39637). Diameter approximately 0.004 km. from mean, weighted H=29.7.
An assessment posting was noted by A/CC on 25 Feb.   -   References: no MPECs
2011 AK37JPL Sentry1645 Feb. 12209715.6e-06-5.56-5.560Analysis based on 32 observations spanning 29.147 days (2011-Jan-13.30429 to 2011-Feb-11.45098). Diameter approximately 0.031 km. from mean, weighted H=25.2.
Assessment postings were noted by A/CC on 3 Feb. & 12 Feb.   -   References: DOUs 2011-C07 & 2011-C69
2011 AX22NEODyS1646 Feb. 122055-2090154.85e-04-3.16-3.180Based on 64 optical observations (of which 0 are rejected as outliers) from 2011-01-10.306 to 2011-02-11.365.
JPL Sentry1645 Feb. 122055-2108155.0e-04-3.15-3.170Analysis based on 64 observations spanning 32.058 days (2011-Jan-10.30552 to 2011-Feb-11.36401). Diameter approximately 0.039 km. from mean, weighted H=24.7.
Assessment postings were noted by A/CC on 12 Feb.   -   References: DOU 2011-C69
2011 AG5JPL Sentry2300 Feb. 242036-205772.7e-04-2.05-2.101Analysis based on 119 observations spanning 42.789 days (2011-Jan-08.2673 to 2011-Feb-20.056036). Diameter approximately 0.140 km. from mean, weighted H=21.9.
NEODyS1603 Feb. 212031-2058162.59e-04-2.06-2.111Based on 119 optical observations (of which 0 are rejected as outliers) from 2011-01-08.268 to 2011-02-20.057.
Assessment postings were noted by A/CC on 2 Feb., 5 Feb., 6 Feb., 7 Feb., 8 Feb., 11 Feb., 13 Feb., 15 Feb., 21 Feb. & 24 Feb.   -   References: DOUs 2011-C03, 2011-C17, 2011-C27, 2011-C34, 2011-C44, 2011-C68, 2011-C81, 2011-C96 & 2011-D20
2010 XW58NEODyS1641 Feb. 22069-208161.07e-06-6.08-6.280Based on 66 optical observations (of which 1 are rejected as outliers) from 2010-12-11.475 to 2011-02-02.259.
JPL Sentry1641 Feb. 22069-2106103.9e-06-5.62-5.970Analysis based on 65 observations spanning 52.784 days (2010-Dec-11.47391 to 2011-Feb-02.2579). Diameter approximately 0.039 km. from mean, weighted H=24.7.
Assessment postings were noted by A/CC on 2 Feb.   -   References: DOU 2011-C03
2010 XC25NEODyS1833 Feb. 152050-206335.38e-06-3.18-3.20Based on 102 optical observations (of which 2 are rejected as outliers) from 2010-12-08.378 to 2011-01-14.516.
JPL Sentry1833 Feb. 152050-205325.2e-06-3.18-3.200Analysis based on 100 observations spanning 37.138 days (2010-Dec-08.37716 to 2011-Jan-14.51498). Diameter approximately 0.220 km. from mean, weighted H=20.9.
Assessment postings were noted by A/CC on 15 Feb.   -   References: DOU 2011-C96
2010 XRJPL Sentry0359 Feb. 25201315.3e-06-4.62-4.620Analysis based on 14 observations spanning 3.0869 days (2010-Dec-02.35142 to 2010-Dec-05.43837). Diameter approximately 0.015 km. from mean, weighted H=26.8.
An assessment posting was noted by A/CC on 25 Feb.   -   References: no recent MPECs
C   L   E   A   R   E   D
2011 DY4JPL Sentry1728 Feb. 26R E M O V E DRisk listing removed at 1054 UTC 26 Feb.
An assessment posting was noted by A/CC on 26 Feb.   -   References: MPEC 2011-D40 plus DOUs 2011-D41, 2011-D46 & 2011-D49
2011 CJ50JPL Sentry1727 Feb. 16R E M O V E DRisk listing removed at 1128 UTC 16 Feb.
NEODyS1727 Feb. 16R E M O V E D
Assessment postings were noted by A/CC on 13 Feb., 14 Feb. & 16 Feb.   -   References: MPEC 2011-C87 plus DOU 2011-D04
2011 CB50JPL Sentry1728 Feb. 26R E M O V E DRisk listing removed at 1130 UTC 26 Feb.
NEODyS1833 Feb. 15R E M O V E D
Assessment postings were noted by A/CC on 13 Feb., 14 Feb., 15 Feb., 16 Feb. & 26 Feb.   -   References: MPEC 2011-C80 plus DOUs 2011-C91, 2011-C96, 2011-D04, 2011-D41 & 2011-D46
2011 CY46JPL Sentry1727 Feb. 16R E M O V E DRisk listing removed at 1130 UTC 16 Feb.
NEODyS1727 Feb. 16R E M O V E D
Assessment postings were noted by A/CC on 12 Feb., 13 Feb. & 16 Feb.   -   References: MPEC 2011-C77 plus DOUs 2011-D04, 2011-D20, 2011-D23, 2011-D32, 2011-D37, 2011-D46 & 2011-D49
2011 CX7NEODyS1600 Feb. 10R E M O V E D
JPL Sentry1600 Feb. 10R E M O V E DRisk listing removed at 1050 UTC 10 Feb.
Assessment postings were noted by A/CC on 7 Feb., 8 Feb. & 10 Feb.   -   References: MPEC 2011-C39 plus DOUs 2011-C66 & 2011-C68
2011 CT4JPL Sentry1600 Feb. 10R E M O V E DRisk listing removed at 1056 UTC 10 Feb.
NEODyS1621 Feb. 9R E M O V E D
Assessment postings were noted by A/CC on 6 Feb., 7 Feb., 8 Feb., 9 Feb. & 10 Feb.   -   References: MPEC 2011-C29 plus DOUs 2011-C44, 2011-C57, 2011-C66, 2011-D04, 2011-D23 & 2011-D32
2011 CR4JPL Sentry1530 Feb. 7R E M O V E DRisk listing removed at 1224 UTC 7 Feb.
Assessment postings were noted by A/CC on 6 Feb. & 7 Feb.   -   References: MPEC 2011-C26 plus DOUs 2011-C34, 2011-C44, 2011-C91 & 2011-D32
2011 CQ4NEODyS1833 Feb. 15R E M O V E D
JPL Sentry1833 Feb. 15R E M O V E DRisk listing removed at 1133 UTC 15 Feb.
Assessment postings were noted by A/CC on 6 Feb., 7 Feb., 8 Feb., 9 Feb. & 15 Feb.   -   References: MPEC 2011-C25 plus DOUs 2011-C34, 2011-C44, 2011-C57, 2011-C96, 2011-D22 & 2011-D23
2011 CZ3NEODyS1800 Feb. 8R E M O V E D
JPL Sentry1800 Feb. 8R E M O V E DRisk listing removed at 1323 UTC 8 Feb.
Assessment postings were noted by A/CC on 5 Feb., 6 Feb. & 8 Feb.   -   References: MPEC 2011-C22 plus DOUs 2011-C44, 2011-C57 & 2011-C66
2011 CY3NEODyS1800 Feb. 8R E M O V E D
JPL Sentry1800 Feb. 8R E M O V E DRisk listing removed at 1353 UTC 8 Feb.
Assessment postings were noted by A/CC on 6 Feb., 7 Feb. & 8 Feb.   -   References: MPEC 2011-C21 plus DOUs 2011-C27, 2011-C34, 2011-C44, 2011-C57, 2011-C66, 2011-D11 & 2011-D32
2011 CN2NEODyS1705 Feb. 13R E M O V E D
JPL Sentry1621 Feb. 9R E M O V E DRisk listing removed at 1220 UTC 9 Feb.
Assessment postings were noted by A/CC on 5 Feb., 6 Feb., 7 Feb., 8 Feb., 9 Feb. & 13 Feb.   -   References: MPEC 2011-C18 plus DOUs 2011-C34, 2011-C44, 2011-C57, 2011-C81, 2011-D23 & 2011-D32
2011 CQ1JPL Sentry1651 Feb. 5R E M O V E DRisk listing removed at 1146 UTC 5 Feb.
Assessment postings were noted by A/CC on 4 Feb. & 5 Feb.   -   References: MPECs 2011-C12 & 2011-C14 plus DOUs 2011-C17 & 2011-C27
2011 BB45NEODyS1530 Feb. 7R E M O V E D
JPL Sentry1530 Feb. 7R E M O V E DRisk listing removed at 1342 UTC 7 Feb.
Assessment postings were noted by A/CC on 2 Feb., 3 Feb. & 7 Feb.   -   References: MPEC 2011-C06 plus DOUs 2011-C07, 2011-C34, 2011-C44, 2011-C68, 2011-C91, 2011-D22, 2011-D23 & 2011-D37
2011 BG40JPL Sentry1641 Feb. 2R E M O V E DRisk listing removed at 1140 UTC 2 Feb.
An assessment posting was noted by A/CC on 2 Feb.   -   References: DOUs 2011-C03, 2011-C17, 2011-C27, 2011-C44, 2011-C57, 2011-C81, 2011-D23, 2011-D32 & 2011-D37
2011 BC40NEODyS1835 Feb. 1R E M O V E D
JPL Sentry1835 Feb. 1R E M O V E DRisk listing removed at 1131 UTC 1 Feb.
Assessment postings were noted by A/CC on 1 Feb.   -   References: DOUs 2011-C01, 2011-C07, 2011-C57, 2011-C68, 2011-C96, 2011-D20 & 2011-D37
2011 BH39NEODyS1645 Feb. 12R E M O V E D
JPL Sentry1645 Feb. 12R E M O V E DRisk listing removed at 1212 UTC 12 Feb.
Assessment postings were noted by A/CC on 12 Feb.   -   References: DOU 2011-C69
2011 BO24JPL Sentry1736 Feb. 4R E M O V E DRisk listing removed at 1129 UTC 4 Feb.
Assessment postings were noted by A/CC on 1 Feb. & 4 Feb.   -   References: DOUs 2011-C01, 2011-C11 & 2011-C69
2011 BN24NEODyS1637 Feb. 3R E M O V E D
JPL Sentry1637 Feb. 3R E M O V E DRisk listing removed at 1051 UTC 3 Feb.
Assessment postings were noted by A/CC on 1 Feb. & 3 Feb.   -   References: DOUs 2011-C01, 2011-C07 & 2011-C57
2011 BM24NEODyS1637 Feb. 3R E M O V E D
An assessment posting was noted by A/CC on 3 Feb.   -   References: DOUs 2011-C07, 2011-C17, 2011-C27, 2011-C44, 2011-C81, 2011-C96 & 2011-D23
2011 BJ24JPL Sentry1621 Feb. 9R E M O V E DRisk listing removed at 1300 UTC 9 Feb.
NEODyS1835 Feb. 1R E M O V E D
Assessment postings were noted by A/CC on 1 Feb., 2 Feb., 5 Feb., 6 Feb., 7 Feb., 8 Feb. & 9 Feb.   -   References: DOUs 2011-C01, 2011-C03, 2011-C17, 2011-C27, 2011-C34, 2011-C44, 2011-C57, 2011-C66, 2011-C68, 2011-D18 & 2011-D20
2011 BX18JPL Sentry1621 Feb. 9R E M O V E DRisk listing removed at 1050 UTC 9 Feb.
NEODyS1800 Feb. 8R E M O V E D
Assessment postings were noted by A/CC on 3 Feb., 6 Feb., 7 Feb., 8 Feb. & 9 Feb.   -   References: DOUs 2011-C07, 2011-C27, 2011-C34, 2011-C44, 2011-C57, 2011-C91 & 2011-D23
2011 BA12JPL Sentry1603 Feb. 21R E M O V E DRisk listing removed at 1050 UTC 21 Feb.
NEODyS1621 Feb. 9R E M O V E D
Assessment postings were noted by A/CC on 1 Feb., 2 Feb., 3 Feb., 5 Feb., 6 Feb., 7 Feb., 8 Feb., 9 Feb., 10 Feb., 11 Feb., 12 Feb., 14 Feb., 15 Feb., 16 Feb. & 21 Feb.   -   References: DOUs 2011-C01, 2011-C03, 2011-C07, 2011-C17, 2011-C27, 2011-C34, 2011-C44, 2011-C57, 2011-C66, 2011-C68, 2011-C69, 2011-C91, 2011-C96, 2011-D04, 2011-D20, 2011-D23, 2011-D32, 2011-D41, 2011-D46 & 2011-D49
2011 BV11JPL Sentry1835 Feb. 1R E M O V E DRisk listing removed at 1051 UTC 1 Feb.
An assessment posting was noted by A/CC on 1 Feb.   -   References: DOUs 2011-C01, 2011-C57 & 2011-C68
2011 BX10JPL Sentry1651 Feb. 5R E M O V E DRisk listing removed at 1050 UTC 5 Feb.
Assessment postings were noted by A/CC on 2 Feb., 3 Feb. & 5 Feb.   -   References: DOUs 2011-C03, 2011-C07, 2011-C17, 2011-C66, 2011-C68, 2011-C69, 2011-C96, 2011-D18 & 2011-D20
2008 HLNEODyS1621 Feb. 9R E M O V E D
An assessment posting was noted by A/CC on 9 Feb.   -   References: no recent MPECs

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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