Compiled at 2052 UTC on 1 April 2011
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| 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 FA23 | JPL Sentry | 1507 March 31 | 2025-2102 | 6 | 3.5e-06 | -7.28 | -7.42 | 0 | Analysis based on 21 observations spanning 1.1846 days (2011-Mar-30.24897 to 2011-Mar-31.43355). Diameter approximately 0.006 km. from mean, weighted H=28.9. |
| An assessment posting was noted by A/CC on 31 March - References: MPEC 2011-F57 | |||||||||
| 2011 FQ16 | JPL Sentry | 1903 March 29 | 2066-2111 | 5 | 3.1e-07 | -8.18 | -8.49 | 0 | Analysis based on 16 observations spanning 1.0252 days (2011-Mar-28.31043 to 2011-Mar-29.33567). Diameter approximately 0.010 km. from mean, weighted H=27.7. |
| An assessment posting was noted by A/CC on 29 March - References: MPEC 2011-F46 | |||||||||
| 2011 FQ6 | NEODyS | 1507 March 31 | 2049-2090 | 41 | 3.84e-05 | -5.87 | -5.93 | 0 | Based on 24 optical observations (of which 0 are rejected as outliers) from 2011-03-27.262 to 2011-03-30.362. |
| JPL Sentry | 1507 March 31 | 2053-2103 | 28 | 3.6e-05 | -5.90 | -5.98 | 0 | Analysis based on 24 observations spanning 3.1004 days (2011-Mar-27.26132 to 2011-Mar-30.36173). Diameter approximately 0.010 km. from mean, weighted H=27.7. | |
| Assessment postings were noted by A/CC on 28 March, 30 March & 31 March - References: MPEC 2011-F34 plus DOUs 2011-F49 & 2011-F55 | |||||||||
| 2011 EB74 | NEODyS | 1711 March 16 | 2033-2090 | 243 | 2.75e-04 | -4.60 | -5.53 | 0 | Based on 17 optical observations (of which 0 are rejected as outliers) from 2011-03-15.404 to 2011-03-15.503. |
| JPL Sentry | 1426 March 15 | 2032-2077 | 187 | 2.9e-04 | -4.58 | -5.51 | 0 | Analysis based on 17 observations spanning .09906 days (2011-Mar-15.40337 to 2011-Mar-15.50243). Diameter approximately 0.014 km. from mean, weighted H=26.9. | |
| Assessment postings were noted by A/CC on 15 March & 16 March - References: MPEC 2011-E86 | |||||||||
| 2011 EV73 | JPL Sentry | 0021 March 15 | 2108 | 1 | 1.8e-10 | -11.85 | -11.9 | 0 | Analysis based on 9 observations spanning 1.0891 days (2011-Mar-13.39452 to 2011-Mar-14.48358). Diameter approximately 0.007 km. from mean, weighted H=28.4. |
| An assessment posting was noted by A/CC on 15 March - References: MPEC 2011-E83 | |||||||||
| 2011 EM40 | JPL Sentry | 1330 March 15 | 2060-2110 | 16 | 1.0e-06 | -7.62 | -8.34 | 0 | Analysis based on 25 observations spanning 3.9087 days (2011-Mar-10.37855 to 2011-Mar-14.28722). Diameter approximately 0.009 km. from mean, weighted H=28.0. |
| NEODyS | 1330 March 15 | 2054-2089 | 15 | 5.28e-07 | -7.75 | -8.09 | 0 | Based on 25 optical observations (of which 0 are rejected as outliers) from 2011-03-10.379 to 2011-03-14.288. | |
| Assessment postings were noted by A/CC on 10 March, 11 March, 13 March, 14 March & 15 March - References: MPEC 2011-E56 plus DOUs 2011-E74, 2011-E80 & 2011-E85 | |||||||||
| 2011 EL40 | JPL Sentry | 1330 March 15 | 2073 | 1 | 1.2e-07 | -7.56 | -7.56 | 0 | Analysis based on 30 observations spanning 4.1374 days (2011-Mar-10.24148 to 2011-Mar-14.37887). Diameter approximately 0.017 km. from mean, weighted H=26.5. |
| NEODyS | 1330 March 15 | R E M O V E D | |||||||
| Assessment postings were noted by A/CC on 10 March, 11 March & 15 March - References: MPEC 2011-E55 plus DOU 2011-E85 | |||||||||
| 2011 EU29 | NEODyS | 1603 March 30 | 2110-2110 | 1 | 7.0e-06 | -2.76 | -2.76 | 0 | Based on 88 optical observations (of which 0 are rejected as outliers) from 2011-03-08.201 to 2011-03-29.205. |
| JPL Sentry | 1600 March 30 | 2110 | 1 | 6.7e-06 | -2.78 | -2.78 | 0 | Analysis based on 88 observations spanning 21.003 days (2011-Mar-08.20041 to 2011-Mar-29.20384). Diameter approximately 0.370 km. from mean, weighted H=19.8. | |
| Assessment postings were noted by A/CC on 10 March, 11 March, 13 March, 14 March, 23 March, 26 March, 27 March, 28 March, 29 March & 30 March - References: MPEC 2011-E49 plus DOUs 2011-E53, 2011-E61, 2011-E74, 2011-E80, 2011-F19, 2011-F24, 2011-F31, 2011-F37, 2011-F45 & 2011-F49 | |||||||||
| 2011 ES4 | NEODyS | 1726 March 6 | 2031-2090 | 55 | 2.19e-05 | -5.11 | -5.56 | 0 | Based on 45 optical observations (of which 0 are rejected as outliers) from 2011-03-02.199 to 2011-03-06.236. |
| JPL Sentry | 1726 March 6 | 2031-2109 | 47 | 2.7e-05 | -5.06 | -5.53 | 0 | Analysis based on 45 observations spanning 4.0365 days (2011-Mar-02.19847 to 2011-Mar-06.23495). Diameter approximately 0.025 km. from mean, weighted H=25.7. | |
| Assessment postings were noted by A/CC on 3 March, 5 March & 6 March - References: MPEC 2011-E13 plus DOUs 2011-E28 & 2011-E34 | |||||||||
| 2011 EB | NEODyS | 1625 March 11 | 2070-2077 | 3 | 2.81e-05 | -5.63 | -5.72 | 0 | Based on 39 optical observations (of which 0 are rejected as outliers) from 2011-03-01.381 to 2011-03-10.437. |
| JPL Sentry | 1625 March 11 | 2070-2077 | 3 | 2.9e-05 | -5.62 | -5.70 | 0 | Analysis based on 39 observations spanning 9.0560 days (2011-Mar-01.38036 to 2011-Mar-10.43633). Diameter approximately 0.014 km. from mean, weighted H=26.9. | |
| Assessment postings were noted by A/CC on 2 March, 4 March, 5 March, 6 March, 7 March & 11 March - References: MPEC 2011-E04 plus DOUs 2011-E21, 2011-E28, 2011-E34, 2011-E42 & 2011-E61 | |||||||||
| 2011 DV10 | JPL Sentry | 1625 March 11 | 2093 | 1 | 1.7e-06 | -5.74 | -5.74 | 0 | Analysis based on 27 observations spanning 12.048 days (2011-Feb-26.30148 to 2011-Mar-10.34995). Diameter approximately 0.038 km. from mean, weighted H=24.8. |
| Assessment postings were noted by A/CC on 1 March, 2 March, 3 March, 4 March & 11 March - References: MPEC 2011-E02 plus DOUs 2011-E06, 2011-E17, 2011-E21 & 2011-E61 | |||||||||
| 2011 DU9 | NEODyS | 1711 March 13 | 2043-2054 | 4 | 1.94e-04 | -4.46 | -4.47 | 0 | Based on 64 optical observations (of which 0 are rejected as outliers) from 2011-02-27.018 to 2011-03-11.392. |
| JPL Sentry | 1711 March 13 | 2043-2059 | 5 | 1.9e-04 | -4.46 | -4.47 | 0 | Analysis based on 64 observations spanning 12.375 days (2011-Feb-27.01686 to 2011-Mar-11.391399). Diameter approximately 0.016 km. from mean, weighted H=26.7. | |
| Assessment postings were noted by A/CC on 1 March, 2 March, 3 March, 5 March, 6 March, 7 March, 11 March & 13 March - References: DOUs 2011-E01, 2011-E06, 2011-E17, 2011-E28, 2011-E34, 2011-E42, 2011-E61 & 2011-E74 | |||||||||
| 2011 DS | NEODyS | 1625 March 11 | 2065-2084 | 12 | 1.29e-05 | -6.15 | -6.34 | 0 | Based on 74 optical observations (of which 0 are rejected as outliers) from 2011-02-23.400 to 2011-03-10.367. |
| JPL Sentry | 1625 March 11 | 2074-2108 | 17 | 1.6e-05 | -6.09 | -6.34 | 0 | Analysis based on 74 observations spanning 14.967 days (2011-Feb-23.39905 to 2011-Mar-10.3663). Diameter approximately 0.013 km. from mean, weighted H=27.0. | |
| Assessment postings were noted by A/CC on 1 March, 2 March, 3 March, 4 March, 5 March, 6 March, 7 March & 11 March - References: DOUs 2011-E01, 2011-E06, 2011-E17, 2011-E21, 2011-E28, 2011-E34, 2011-E42 & 2011-E61 | |||||||||
| 2011 BP40 | NEODyS | 1833 March 5 | 2016-2087 | 18 | 5.09e-07 | -5.65 | -5.66 | 0 | Based on 9 optical observations (of which 0 are rejected as outliers) from 2011-01-30.404 to 2011-02-02.480. |
| JPL Sentry | 1833 March 5 | 2016-2109 | 41 | 4.3e-07 | -6.17 | -6.28 | 0 | Analysis based on 9 observations spanning 3.0757 days (2011-Jan-30.40349 to 2011-Feb-02.479228). Diameter approximately 0.029 km. from mean, weighted H=25.4. | |
| Assessment postings were noted by A/CC on 5 March - References: DOU 2011-E28 | |||||||||
| 2011 BT15 | NEODyS | 1726 March 6 | 2062-2090 | 27 | 2.53e-05 | -3.34 | -3.52 | 0 | Based on 70 optical observations (of which 3 are rejected as outliers) from 2011-01-24.290 to 2011-03-06.207. |
| JPL Sentry | 1726 March 6 | 2037-2110 | 88 | 7.6e-05 | -2.90 | -3.34 | 0 | Analysis based on 69 observations spanning 40.917 days (2011-Jan-24.28933 to 2011-Mar-06.20673). Diameter approximately 0.150 km. from mean, weighted H=21.7. | |
| Assessment postings were noted by A/CC on 1 March, 2 March, 3 March, 4 March & 6 March - References: DOUs 2011-E01, 2011-E06, 2011-E17, 2011-E21 & 2011-E34 | |||||||||
| 2010 RF12 | JPL Sentry | 1723 March 4 | 2095-2110 | 31 | 5.2e-02 | -3.33 | -3.33 | 0 | Analysis based on 322 observations spanning 3.1100 days (2010-Sep-05.40477 to 2010-Sep-08.514787). Diameter approximately 0.007 km. from mean, weighted H=28.4. |
| NEODyS | 1723 March 4 | 2095-2100 | 8 | 4.82e-02 | -3.36 | -3.36 | 0 | Based on 324 optical observations (of which 3 are rejected as outliers) from 2010-09-05.406 to 2010-09-08.516. | |
| Assessment postings were noted by A/CC on 4 March - References: DOU 2011-E21 | |||||||||
| 2010 EN44 | NEODyS | 1503 March 24 | 2027-2027 | 1 | 6.8e-10 | -7.41 | -7.41 | 0 | Based on 11 optical observations (of which 0 are rejected as outliers) from 2010-03-11.868 to 2010-03-12.596. |
| JPL Sentry | 1617 March 23 | 2015-2110 | 26 | 2.0e-07 | -5.84 | -5.97 | 0 | Analysis based on 11 observations spanning .72799 days (2010-Mar-11.86749 to 2010-Mar-12.59548). Diameter approximately 0.018 km. from mean, weighted H=26.7. | |
| Assessment postings were noted by A/CC on 23 March & 24 March - References: DOU 2011-F19 | |||||||||
| 2010 DG77 | NEODyS | 1503 March 24 | 2042-2090 | 34 | 3.16e-06 | -5.66 | -6.36 | 0 | Based on 10 optical observations (of which 0 are rejected as outliers) from 2010-02-19.176 to 2010-02-19.772. |
| JPL Sentry | 0218 March 24 | 2023-2111 | 137 | 1.4e-06 | -5.55 | -6.25 | 0 | Analysis based on 10 observations spanning .59543 days (2010-Feb-19.17573 to 2010-Feb-19.77116). Diameter approximately 0.045 km. from mean, weighted H=24.5. | |
| Assessment postings were noted by A/CC on 23 March & 24 March - References: DOU 2011-F19 | |||||||||
| 2008 EM68 | JPL Sentry | 0412 March 12 | 2011-2110 | 968 | 1.5e-05 | -5.28 | -5.75 | 0 | Analysis based on 12 observations spanning .11019 days (2008-Mar-08.25164 to 2008-Mar-08.36183). Diameter approximately 0.010 km. from mean, weighted H=27.7. |
| An assessment posting was noted by A/CC on 12 March - References: no recent MPECs | |||||||||
| 2008 EF32 | JPL Sentry | 0220 March 11 | 2022-2083 | 3 | 6.8e-08 | -9.09 | -9.33 | 0 | Analysis based on 8 observations spanning .12271 days (2008-Mar-11.35979 to 2008-Mar-11.4825). Diameter approximately 0.004 km. from mean, weighted H=29.4. |
| An assessment posting was noted by A/CC on 11 March - References: no recent MPECs | |||||||||
| 2004 FU162 | JPL Sentry | 0404 April 1 | 2011-2110 | 787 | 5.6e-05 | -4.73 | -5.05 | 0 | Analysis based on 4 observations spanning .03055 days (2004-Mar-31.27744 to 2004-Mar-31.30799). Diameter approximately 0.006 km. from mean, weighted H=29.0. |
| An assessment posting was noted by A/CC on 1 April - References: no recent MPECs | |||||||||
| C L E A R E D | |||||||||
| 2011 FY22 | NEODyS | 1640 April 1 | R E M O V E D | ||||||
| JPL Sentry | 1640 April 1 | R E M O V E D | Risk listing removed at 1048 UTC 1 April | ||||||
| Assessment postings were noted by A/CC on 31 March & 1 April - References: MPEC 2011-F54 plus DOU 2011-G01 | |||||||||
| 2011 ET74 | JPL Sentry | 1534 March 25 | R E M O V E D | Risk listing removed at 1058 UTC 25 March | |||||
| Assessment postings were noted by A/CC on 15 March & 25 March - References: MPEC 2011-E89 plus DOUs 2011-F22, 2011-F24 & 2011-F31 | |||||||||
| 2011 EM51 | JPL Sentry | 1330 March 14 | R E M O V E D | Risk listing removed at 1149 UTC 14 March | |||||
| Assessment postings were noted by A/CC on 13 March & 14 March - References: MPEC 2011-E76 plus DOUs 2011-E80, 2011-E85, 2011-F04, 2011-F05, 2011-F22, 2011-F24, 2011-F37, 2011-F45, 2011-F49 & 2011-F55 | |||||||||
| 2011 EC41 | NEODyS | 1704 March 18 | R E M O V E D | ||||||
| JPL Sentry | 1704 March 18 | R E M O V E D | Risk listing removed at 1054 UTC 18 March | ||||||
| Assessment postings were noted by A/CC on 12 March, 13 March, 14 March & 18 March - References: MPEC 2011-E64 plus DOUs 2011-E68, 2011-E74, 2011-E80, 2011-F04, 2011-F22 & 2011-F24 | |||||||||
| 2011 EO40 | JPL Sentry | 1640 March 12 | R E M O V E D | Risk listing removed at 1151 UTC 12 March | |||||
| NEODyS | 1640 March 12 | R E M O V E D | |||||||
| Assessment postings were noted by A/CC on 11 March & 12 March - References: MPEC 2011-E59 plus DOUs 2011-E68 & 2011-F22 | |||||||||
| 2011 EK40 | JPL Sentry | 1330 March 15 | R E M O V E D | Risk listing removed at 1140 UTC 15 March | |||||
| NEODyS | 1330 March 15 | R E M O V E D | |||||||
| Assessment postings were noted by A/CC on 10 March, 11 March & 15 March - References: MPEC 2011-E54 plus DOU 2011-E85 | |||||||||
| 2011 EF17 | NEODyS | 1552 March 26 | R E M O V E D | ||||||
| JPL Sentry | 1552 March 26 | R E M O V E D | Risk listing removed at 1051 UTC 26 March | ||||||
| Assessment postings were noted by A/CC on 7 March, 11 March, 14 March & 26 March - References: MPEC 2011-E39 plus DOUs 2011-E61, 2011-E80 & 2011-F24 | |||||||||
| 2011 EL11 | NEODyS | 1503 March 24 | R E M O V E D | ||||||
| JPL Sentry | 1503 March 24 | R E M O V E D | Risk listing removed at 1052 UTC 24 March | ||||||
| Assessment postings were noted by A/CC on 5 March, 6 March, 11 March, 12 March, 14 March & 24 March - References: MPEC 2011-E24 plus DOUs 2011-E34, 2011-E61, 2011-E68, 2011-E80 & 2011-F20 | |||||||||
| 2011 EC7 | JPL Sentry | 1706 March 10 | R E M O V E D | Risk listing removed at 1253 UTC 10 March | |||||
| NEODyS | 1752 March 7 | R E M O V E D | |||||||
| Assessment postings were noted by A/CC on 5 March, 7 March & 10 March - References: MPEC 2011-E23 plus DOUs 2011-E42, 2011-E53, 2011-E61 & 2011-F24 | |||||||||
| 2011 EW4 | NEODyS | 1706 March 10 | R E M O V E D | ||||||
| JPL Sentry | 1706 March 10 | R E M O V E D | Risk listing removed at 1329 UTC 10 March | ||||||
| Assessment postings were noted by A/CC on 3 March, 4 March, 5 March, 6 March & 10 March - References: MPEC 2011-E16 plus DOUs 2011-E21, 2011-E28, 2011-E34, 2011-E53, 2011-E61 & 2011-F31 | |||||||||
| 2011 EJ | JPL Sentry | 1811 March 3 | R E M O V E D | Risk listing removed at 1137 UTC 3 March | |||||
| Assessment postings were noted by A/CC on 2 March & 3 March - References: MPEC 2011-E08 plus DOUs 2011-E17, 2011-E21 & 2011-E68 | |||||||||
| 2011 EH | JPL Sentry | 1723 March 4 | R E M O V E D | Risk listing removed at 1246 UTC 4 March | |||||
| Assessment postings were noted by A/CC on 2 March & 4 March - References: MPEC 2011-E07 plus DOU 2011-E21 | |||||||||
| 2011 EC | JPL Sentry | 1723 March 4 | R E M O V E D | Risk listing removed at 1451 UTC 4 March | |||||
| Assessment postings were noted by A/CC on 2 March & 4 March - References: MPEC 2011-E05 plus DOUs 2011-E21, 2011-E28, 2011-F31 & 2011-F37 | |||||||||
| 2011 DS9 | NEODyS | 1652 March 9 | R E M O V E D | ||||||
| JPL Sentry | 1752 March 7 | R E M O V E D | Risk listing removed at 1238 UTC 7 March | ||||||
| Assessment postings were noted by A/CC on 1 March, 2 March, 3 March, 4 March, 5 March, 6 March, 7 March & 9 March - References: DOUs 2011-E01, 2011-E06, 2011-E17, 2011-E21, 2011-E28, 2011-E34, 2011-E42, 2011-E47, 2011-E53, 2011-E74, 2011-E85, 2011-F04, 2011-F20, 2011-F22, 2011-F31, 2011-F37, 2011-F45 & 2011-G01 | |||||||||
| 2011 DE5 | JPL Sentry | 1637 March 2 | R E M O V E D | Risk listing removed at 1318 UTC 2 March | |||||
| NEODyS | 1757 March 1 | R E M O V E D | |||||||
| Assessment postings were noted by A/CC on 1 March & 2 March - References: DOUs 2011-E01 & 2011-E06 | |||||||||
| 2011 DV | JPL Sentry | 1621 March 29 | R E M O V E D | Risk listing removed at 1053 UTC 29 March | |||||
| NEODyS | 1704 March 18 | R E M O V E D | |||||||
| Assessment postings were noted by A/CC on 2 March, 3 March, 5 March, 7 March, 8 March, 9 March, 10 March, 12 March, 13 March, 15 March, 16 March, 18 March, 25 March, 26 March, 27 March, 28 March & 29 March - References: DOUs 2011-E06, 2011-E17, 2011-E28, 2011-E42, 2011-E44, 2011-E47, 2011-E53, 2011-E68, 2011-E74, 2011-E85, 2011-F01, 2011-F04, 2011-F22, 2011-F24, 2011-F31, 2011-F37, 2011-F45 & 2011-F49 | |||||||||
| 2011 BM45 | NEODyS | 1706 March 10 | R E M O V E D | ||||||
| JPL Sentry | 1706 March 10 | R E M O V E D | Risk listing removed at 1247 UTC 10 March | ||||||
| Assessment postings were noted by A/CC on 10 March - References: DOU 2011-E53 | |||||||||
| 2010 DJ77 | NEODyS | 1617 March 23 | R E M O V E D | ||||||
| JPL Sentry | 1617 March 23 | R E M O V E D | Risk listing removed at 1135 UTC 23 March | ||||||
| Assessment postings were noted by A/CC on 23 March - References: DOU 2011-F19 | |||||||||
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.