A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted During March 2012

Compiled at 2359 UTC on 31 March 2012

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[ 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.

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 CLOMON2 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
2012 FA57NEODyS1341 March 302075-207633.07e-07-7.12-7.30Based on 23 optical observations (of which 0 are rejected as outliers) from 2012-03-28.190 to 2012-03-30.183.
JPL Sentry1341 March 302047-211159.2e-08-7.63-7.910Analysis based on 23 observations spanning 1.9923 days (2012-Mar-28.18963 to 2012-Mar-30.18189). Diameter approximately 0.023 km. from mean, weighted H=25.9.
Assessment postings were noted by A/CC on 28 March, 29 March & 30 March   -   References: MPEC 2012-F103 plus DOUs 2012-F105 & 2012-F106
2012 FR1JPL Sentry1558 March 23R E M O V E DRisk listing removed at 0933 UTC 23 March
NEODyS1626 March 212024-2070111.03e-08-4.30-4.520Based on 25 optical observations (of which 0 are rejected as outliers) from 2012-03-16.405 to 2012-03-20.415.
Assessment postings were noted by A/CC on 19 March, 20 March, 21 March & 23 March   -   References: MPEC 2012-F39 plus DOUs 2012-F47, 2012-F56 & 2012-F62
2012 FQ1JPL Sentry1606 March 26R E M O V E DRisk listing removed at 0850 UTC 26 March
NEODyS1624 March 252025-202921.42e-08-4.56-4.620Based on 33 optical observations (of which 0 are rejected as outliers) from 2012-03-16.169 to 2012-03-24.376.
Assessment postings were noted by A/CC on 19 March, 20 March, 21 March, 23 March, 24 March, 25 March & 26 March   -   References: MPEC 2012-F38 plus DOUs 2012-F47, 2012-F56, 2012-F62, 2012-F72, 2012-F89, 2012-F95 & 2012-F113
2012 ES10JPL Sentry1341 March 302054-206461.3e-06-4.88-5.180Analysis based on 33 observations spanning 12.944 days (2012-Mar-15.36929 to 2012-Mar-28.313591). Diameter approximately 0.061 km. from mean, weighted H=23.7.
NEODyS1544 March 172053-2086164.53e-06-4.48-4.840Based on 20 optical observations (of which 0 are rejected as outliers) from 2012-03-15.370 to 2012-03-17.202.
Assessment postings were noted by A/CC on 16 March, 17 March, 23 March, 24 March, 25 March & 30 March   -   References: MPEC 2012-F09 plus DOUs 2012-F16, 2012-F56, 2012-F62, 2012-F72 & 2012-F106
2012 EP10JPL Sentry1341 March 302063-2111449.2e-05-6.48-6.760Analysis based on 31 observations spanning 13.030 days (2012-Mar-15.27159 to 2012-Mar-28.301474). Diameter approximately 0.005 km. from mean, weighted H=29.2.
NEODyS1544 March 172058-2091446.58e-05-6.57-7.310Based on 18 optical observations (of which 0 are rejected as outliers) from 2012-03-15.272 to 2012-03-16.229.
Assessment postings were noted by A/CC on 16 March, 17 March, 23 March, 24 March, 25 March & 30 March   -   References: MPEC 2012-F06 plus DOUs 2012-F16, 2012-F56, 2012-F62, 2012-F72 & 2012-F106
2012 EK5NEODyS1647 March 202064-209053.78e-06-5.67-5.710Based on 24 optical observations (of which 0 are rejected as outliers) from 2012-03-13.443 to 2012-03-19.979.
JPL Sentry1647 March 202070-2111133.0e-05-4.89-5.170Analysis based on 24 observations spanning 6.5355 days (2012-Mar-13.44252 to 2012-Mar-19.978001). Diameter approximately 0.026 km. from mean, weighted H=25.5.
Assessment postings were noted by A/CC on 14 March & 20 March   -   References: MPEC 2012-E55 plus DOU 2012-F44
2012 EG5JPL Sentry1417 March 31210722.6e-07-6.63-6.850Analysis based on 401 observations spanning 17.878 days (2012-Mar-13.30201 to 2012-Mar-31.17971). Diameter approximately 0.047 km. from mean, weighted H=24.3.
NEODyS1647 March 20R E M O V E D
Assessment postings were noted by A/CC on 14 March, 16 March, 17 March, 19 March, 20 March, 23 March, 24 March, 25 March, 26 March, 27 March, 28 March, 29 March, 30 March & 31 March   -   References: MPEC 2012-E52 plus DOUs 2012-F03, 2012-F16, 2012-F37, 2012-F44, 2012-F47, 2012-F48, 2012-F56, 2012-F62, 2012-F72, 2012-F89, 2012-F93, 2012-F95, 2012-F105, 2012-F106 & 2012-F113
2012 EZ1JPL Sentry1600 March 52079-210731.9e-07-8.69-8.920Analysis based on 12 observations spanning 1.1171 days (2012-Mar-02.26107 to 2012-Mar-03.37812). Diameter approximately 0.006 km. from mean, weighted H=28.8.
An assessment posting was noted by A/CC on 5 March   -   References: MPEC 2012-E26 plus DOU 2012-E33
2012 ECNEODyS1341 March 30R E M O V E D
JPL Sentry1341 March 30209918.1e-08-6.82-6.820Analysis based on 96 observations spanning 28.868 days (2012-Mar-01.3419 to 2012-Mar-30.2103). Diameter approximately 0.069 km. from mean, weighted H=23.4.
Assessment postings were noted by A/CC on 2 March, 3 March, 4 March, 5 March, 6 March, 12 March, 13 March, 14 March, 15 March, 16 March, 17 March, 21 March, 23 March, 24 March, 25 March, 26 March, 28 March & 30 March   -   References: MPEC 2012-E17 plus DOUs 2012-E29, 2012-E33, 2012-E40, 2012-E48, 2012-E49, 2012-E50, 2012-E60, 2012-F03, 2012-F16, 2012-F47, 2012-F56, 2012-F62, 2012-F72, 2012-F89, 2012-F95 & 2012-F106
2012 DW60NEODyS1626 March 132083-2090121.64e-04-4.84-5.250Based on 64 optical observations (of which 0 are rejected as outliers) from 2012-02-29.495 to 2012-03-12.403.
JPL Sentry1626 March 132083-2104121.6e-04-4.87-5.120Analysis based on 2 radar Doppler and 59 optical observations spanning 11.908 days (2012-Feb-29.49427 to 2012-Mar-12.4021). Diameter approximately 0.017 km. from mean, weighted H=26.5.
Assessment postings were noted by A/CC on 1 March, 2 March, 3 March, 4 March, 5 March, 6 March, 8 March, 9 March, 12 March & 13 March   -   References: MPEC 2012-E05 plus DOUs 2012-E20, 2012-E29, 2012-E33, 2012-E40, 2012-E42, 2012-E43 & 2012-E49, radar: 12 March
2012 DJ54NEODyS1544 March 172068-208638.94e-05-5.98-6.030Based on 25 optical observations (of which 0 are rejected as outliers) from 2012-02-27.469 to 2012-03-15.327.
JPL Sentry1544 March 172068-2112251.8e-04-5.75-5.990Analysis based on 25 observations spanning 16.858 days (2012-Feb-27.46779 to 2012-Mar-15.325818). Diameter approximately 0.007 km. from mean, weighted H=28.5.
Assessment postings were noted by A/CC on 1 March, 2 March, 3 March, 4 March & 17 March   -   References: DOUs 2012-E16, 2012-E20, 2012-E29 & 2012-F16
2012 DA14NEODyS1341 March 302020-20902405.37e-04-2.94-3.60Based on 168 optical observations (of which 4 are rejected as outliers) from 2012-02-23.029 to 2012-03-29.301.
JPL Sentry1341 March 302020-2057933.1e-04-3.07-3.630Analysis based on 165 observations spanning 35.266 days (2012-Feb-23.03431 to 2012-Mar-29.300732). Diameter approximately 0.045 km. from mean, weighted H=24.4.
Assessment postings were noted by A/CC on 1 March, 2 March, 3 March, 4 March, 5 March, 6 March, 7 March, 8 March, 11 March, 12 March, 13 March, 14 March, 15 March, 16 March, 17 March, 24 March, 25 March & 30 March   -   References: DOUs 2012-E01, 2012-E16, 2012-E20, 2012-E29, 2012-E33, 2012-E40, 2012-E41, 2012-E47, 2012-E48, 2012-E49, 2012-E50, 2012-E60, 2012-F03, 2012-F16, 2012-F62, 2012-F72 & 2012-F106
2011 AG5NEODyS1417 March 312040-2051101.83e-03-1.06-1.061Based on 210 optical observations (of which 0 are rejected as outliers) from 2010-11-08.631 to 2011-09-21.399.
JPL Sentry1902 March 102040-204752.0e-03-1.01-1.011Analysis based on 209 observations spanning 316.77 days (2010-Nov-08.629742 to 2011-Sep-21.398727). Diameter approximately 0.140 km. from mean, weighted H=21.9.
Assessment postings were noted by A/CC on 7 March, 9 March, 10 March & 31 March   -   References: DOUs 2012-E41, 2012-E43, 2012-E45 & 2012-F113
2010 HP20NEODyS1415 March 152021-20891631.99e-05-6.23-7.340Based on 12 optical observations (of which 0 are rejected as outliers) from 2010-04-20.449 to 2010-04-20.497.
An assessment posting was noted by A/CC on 15 March   -   References: no recent MPECs
C   L   E   A   R   E   D
2012 FT35JPL Sentry1621 March 27R E M O V E DRisk listing removed at 0902 UTC 27 March
Assessment postings were noted by A/CC on 26 March & 27 March   -   References: MPEC 2012-F82 plus DOU 2012-F93
2012 FN35JPL Sentry1621 March 27R E M O V E DRisk listing removed at 0854 UTC 27 March
Assessment postings were noted by A/CC on 25 March & 27 March   -   References: MPEC 2012-F76 plus DOUs 2012-F93, 2012-F106 & 2012-F113
2012 FA14NEODyS1605 March 24R E M O V E D
JPL Sentry1605 March 24R E M O V E DRisk listing removed at 0931 UTC 24 March
Assessment postings were noted by A/CC on 22 March, 23 March & 24 March   -   References: MPEC 2012-F52 plus DOUs 2012-F56, 2012-F62, 2012-F106 & 2012-F113
2012 ET14NEODyS1647 March 20R E M O V E D
JPL Sentry1647 March 20R E M O V E DRisk listing removed at 0852 UTC 20 March
Assessment postings were noted by A/CC on 17 March, 18 March, 19 March & 20 March   -   References: MPEC 2012-F18 plus DOUs 2012-F37, 2012-F44 & 2012-F89
2012 ER14NEODyS1558 March 23R E M O V E D
JPL Sentry1558 March 23R E M O V E DRisk listing removed at 0851 UTC 23 March
Assessment postings were noted by A/CC on 17 March, 18 March & 23 March   -   References: MPEC 2012-F17 plus DOUs 2012-F56, 2012-F62 & 2012-F105
2012 EY11JPL Sentry1544 March 17R E M O V E DRisk listing removed at 0934 UTC 17 March
Assessment postings were noted by A/CC on 16 March & 17 March   -   References: MPEC 2012-F12 plus DOUs 2012-F16, 2012-F33, 2012-F56, 2012-F62 & 2012-F95
2012 EB2JPL Sentry1627 March 6R E M O V E DRisk listing removed at 1029 UTC 6 March
NEODyS1627 March 6R E M O V E D
Assessment postings were noted by A/CC on 3 March, 4 March & 6 March   -   References: MPEC 2012-E28 plus DOUs 2012-E40, 2012-E48, 2012-E50, 2012-E60, 2012-F33, 2012-F44, 2012-F48, 2012-F56, 2012-F62 & 2012-F113
2012 DG61JPL Sentry1400 March 10R E M O V E DRisk listing removed at 0849 UTC 10 March
Assessment postings were noted by A/CC on 2 March, 3 March, 4 March, 5 March, 6 March & 10 March   -   References: MPEC 2012-E10 plus DOUs 2012-E20, 2012-E29, 2012-E33, 2012-E40, 2012-E45, 2012-E47, 2012-E50, 2012-F47, 2012-F95 & 2012-F106
2012 DY43NEODyS1701 March 2R E M O V E D
An assessment posting was noted by A/CC on 2 March   -   References: DOUs 2012-E16, 2012-E20, 2012-E29, 2012-E33, 2012-E40 & 2012-E49
2012 DZ32JPL Sentry1603 March 1R E M O V E DRisk listing removed at 0848 UTC 1 March
An assessment posting was noted by A/CC on 1 March   -   References: DOUs 2012-E01, 2012-E16, 2012-E29, 2012-E33, 2012-E47, 2012-E48, 2012-E50, 2012-E60, 2012-F03, 2012-F33, 2012-F56 & 2012-F105
2012 CA21JPL Sentry1627 March 3R E M O V E DRisk listing removed at 1050 UTC 3 March
An assessment posting was noted by A/CC on 3 March   -   Reference: DOU 2012-E20
2012 BJ86NEODyS1447 March 14R E M O V E D
JPL Sentry1447 March 14R E M O V E DRisk listing removed at 0852 UTC 14 March
Assessment postings were noted by A/CC on 1 March & 14 March   -   References: DOUs 2012-E01, 2012-E50 & 2012-F72
2011 AX22NEODyS1638 March 8R E M O V E D
JPL Sentry1701 March 2R E M O V E DRisk listing removed at 1003 UTC 2 March
Assessment postings were noted by A/CC on 2 March & 8 March   -   References: DOU 2012-E16

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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