Compiled at 1548 UTC on 9 February 2010
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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 |
| 2010 CA | NEODyS | 1548 Feb. 9 | 2019-2063 | 6 | 4.65e-05 | -3.45 | -3.46 | 0 | Based on 28 optical observations (of which 0 are rejected as outliers) from 2010/02/05.197 to 2010/02/08.173. |
| JPL Sentry | 1548 Feb. 9 | 2019-2028 | 4 | 4.5e-05 | -3.46 | -3.47 | 0 | Analysis based on 28 observations spanning 2.9758 days (2010-Feb-05.19638 to 2010-Feb-08.172148). Diameter approximately 0.041 km. from mean, weighted H=24.6. | |
| Assessment postings were noted by A/CC on 6 Feb., 7 Feb., 8 Feb. & 9 Feb. - References: MPECs 2010-C16, 2010-C18, 2010-C22 & 2010-C24 | |||||||||
| 2009 XO | NEODyS | 1750 Jan. 17 | 2038-2083 | 2 | 3.56e-07 | -4.16 | -4.26 | 0 | Based on 221 optical observations (of which 0 are rejected as outliers) from 2009/12/09.153 to 2010/01/16.546. |
| JPL Sentry | 1750 Jan. 17 | 2038-2081 | 2 | 3.0e-07 | -4.19 | -4.26 | 0 | Analysis based on 221 observations spanning 38.393 days (2009-Dec-09.152 to 2010-Jan-16.54518). Diameter approximately 0.270 km. from mean, weighted H=20.5. | |
| Assessment postings were noted by A/CC on 12 Jan., 13 Jan., 14 Jan., 15 Jan. & 17 Jan. - References: MPECs 2010-A60, 2010-A66, 2010-A74, 2010-A79 & 2010-B03 | |||||||||
| 2009 WM1 | NEODyS | 1521 Jan. 25 | 2078 | 1 | 3.99e-09 | -6.27 | -6.27 | 0 | Based on 84 optical observations (of which 0 are rejected as outliers) from 2009/11/17.465 to 2010/01/24.561. |
| JPL Sentry | 1502 Jan. 25 | 2091 | 1 | 9.3e-08 | -4.98 | -4.98 | 0 | Analysis based on 84 observations spanning 68.097 days (2009-Nov-17.4641 to 2010-Jan-24.5607). Diameter approximately 0.280 km. from mean, weighted H=20.4. | |
| Assessment postings were noted by A/CC on 25 Jan. - References: MPEC 2010-B39 | |||||||||
| C L E A R E D | |||||||||
| 2010 BU2 | NEODyS | 1637 Jan. 23 | R E M O V E D | ||||||
| JPL Sentry | 1637 Jan. 23 | R E M O V E D | Risk listing removed at 1049 UTC 23 Jan. | ||||||
| Assessment postings were noted by A/CC on 22 Jan. & 23 Jan. - References: MPECs 2010-B29, 2010-B34, 2010-B37, 2010-B39, 2010-B42, 2010-B45, 2010-B56, 2010-B60, 2010-B68 & 2010-C01 | |||||||||
| 2010 BL2 | NEODyS | 1637 Jan. 23 | R E M O V E D | ||||||
| JPL Sentry | 1637 Jan. 23 | R E M O V E D | Risk listing removed at 1052 UTC 23 Jan. | ||||||
| Assessment postings were noted by A/CC on 20 Jan., 21 Jan. & 23 Jan. - References: MPECs 2010-B17, 2010-B26, 2010-B34, 2010-B37, 2010-B45, 2010-C03 & 2010-C15 | |||||||||
| 2010 BB | JPL Sentry | 1503 Jan. 18 | R E M O V E D | Risk listing removed at 1040 UTC 18 Jan. | |||||
| Assessment postings were noted by A/CC on 17 Jan. & 18 Jan. - References: MPECs 2010-B05, 2010-B07, 2010-C03, 2010-C05, 2010-C15 & 2010-C24 | |||||||||
| 2010 AF40 | NEODyS | 1502 Jan. 15 | R E M O V E D | ||||||
| JPL Sentry | 1502 Jan. 15 | R E M O V E D | Risk listing removed at 1056 UTC 15 Jan. | ||||||
| Assessment postings were noted by A/CC on 13 Jan., 14 Jan. & 15 Jan. - References: MPECs 2010-A68, 2010-A74, 2010-A79, 2010-B01, 2010-B07, 2010-B09, 2010-B14 & 2010-B56, radar: 25 Jan. | |||||||||
| 2010 AE30 | JPL Sentry | 1501 Jan. 12 | R E M O V E D | Risk listing removed at 0951 UTC 12 Jan. | |||||
| An assessment posting was noted by A/CC on 12 Jan. - References: MPECs 2010-A60, 2010-A66, 2010-A74, 2010-A79, 2010-B01, 2010-B03 & 2010-B07 | |||||||||
| 2005 UO | NEODyS | 1505 Jan. 21 | R E M O V E D | ||||||
| JPL Sentry | 1800 Jan. 20 | R E M O V E D | Risk listing removed at 1703 UTC 20 Jan. | ||||||
| Assessment postings were noted by A/CC on 20 Jan. & 21 Jan. - References: MPEC 2010-B15 | |||||||||
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.