Compiled at 1449 UTC on 3 July 2009
[ The Tracking News | ephemerides | cleared ]
Missing something? Check the archives for objects not under active observation or recent analysis.
| 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 |
| 2009 MB9 | NEODyS | 1401 July 2 | 2030-2086 | 13 | 3.46e-08 | -3.97 | -4.12 | 0 | Based on 11 optical observations (of which 0 are rejected as outliers) from 2009/06/29.473 to 2009/07/01.441. |
| JPL Sentry | 1400 July 2 | 2030-2105 | 7 | 1.2e-07 | -3.91 | -4.25 | 0 | Analysis based on 11 observations spanning 1.9681 days (2009-Jun-29.47208 to 2009-Jul-01.44019). Diameter approximately 0.668 km. from mean, weighted H=18.5. | |
| Assessment postings were noted by A/CC on 30 June, 1 July & 2 July - References: MPECs 2009-M56 & 2009-N05 | |||||||||
| 2009 MG1 | NEODyS | 1734 June 25 | 2079-2083 | 3 | 3.38e-07 | -5.99 | -6.23 | 0 | Based on 18 optical observations (of which 0 are rejected as outliers) from 2009/06/21.273 to 2009/06/24.203. |
| JPL Sentry | 1734 June 25 | 2079-2083 | 3 | 3.7e-07 | -5.96 | -6.21 | 0 | Analysis based on 18 observations spanning 2.9300 days (2009-Jun-21.27223 to 2009-Jun-24.20218). Diameter approximately 0.053 km. from mean, weighted H=24.0. | |
| Assessment postings were noted by A/CC on 23 June, 24 June & 25 June - References: MPECs 2009-M29, 2009-M31 & 2009-M35 | |||||||||
| 2009 MU | JPL Sentry | 1734 June 25 | 2096 | 1 | 2.5e-07 | -6.58 | -6.58 | 0 | Analysis based on 88 observations spanning 4.8184 days (2009-Jun-19.30659 to 2009-Jun-24.12497). Diameter approximately 0.042 km. from mean, weighted H=24.5. |
| Assessment postings were noted by A/CC on 22 June, 23 June, 24 June & 25 June - References: MPECs 2009-M19, 2009-M22, 2009-M31 & 2009-M35 | |||||||||
| 2009 HC | JPL Sentry | 1333 June 4 | 2095-2099 | 2 | 1.2e-06 | -6.26 | -6.28 | 0 | Analysis based on 148 observations spanning 44.903 days (2009-Apr-17.23164 to 2009-Jun-01.13477). Diameter approximately 0.038 km. from mean, weighted H=24.8. |
| An assessment posting was noted by A/CC on 4 June - References: MPEC 2009-L19 | |||||||||
| 2008 AO112 | JPL Sentry | 0336 June 26 | 2010-2099 | 45 | 1.5e-07 | -4.30 | -4.62 | 0 | Analysis based on 8 observations spanning 1.0097 days (2008-Jan-11.08899 to 2008-Jan-12.098698). Diameter approximately 0.310 km. from mean, weighted H=20.2. |
| An assessment posting was noted by A/CC on 26 June - References: no recent MPECs | |||||||||
| C L E A R E D | |||||||||
| 2009 NA | JPL Sentry | 1442 July 3 | R E M O V E D | Risk listing removed at 0845 UTC 3 July | |||||
| Assessment postings were noted by A/CC on 2 July & 3 July - References: MPECs 2009-N06 & 2009-N08 | |||||||||
| 2009 MN8 | JPL Sentry | 1344 June 30 | R E M O V E D | Risk listing removed at 0849 UTC 30 June | |||||
| Assessment postings were noted by A/CC on 29 June & 30 June - References: MPECs 2009-M48, 2009-M53, 2009-N05 & 2009-N08 | |||||||||
| 2009 MS | JPL Sentry | 1734 June 25 | R E M O V E D | Risk listing removed at 1650 UTC 25 June | |||||
| NEODyS | 1330 June 24 | R E M O V E D | |||||||
| Assessment postings were noted by A/CC on 23 June, 24 June & 25 June - References: MPECs 2009-M18, 2009-M31 & 2009-M35 | |||||||||
| 2009 LW2 | JPL Sentry | 1400 June 19 | R E M O V E D | Risk listing removed at 0851 UTC 19 June | |||||
| NEODyS | 1400 June 19 | R E M O V E D | |||||||
| Assessment postings were noted by A/CC on 16 June, 17 June, 18 June & 19 June - References: MPECs 2009-M04, 2009-M11, 2009-M14, 2009-M15, 2009-M17, 2009-M22, 2009-M35 & 2009-N02 | |||||||||
| 2009 LU2 | NEODyS | 1442 July 3 | R E M O V E D | ||||||
| JPL Sentry | 2121 July 2 | R E M O V E D | Risk listing removed at 2052 UTC 2 July | ||||||
| Assessment postings were noted by A/CC on 17 June, 28 June, 30 June, 1 July, 2 July & 3 July - References: MPECs 2009-M02, 2009-M44 & 2009-N08 | |||||||||
| 2009 LQ1 | JPL Sentry | 1419 June 17 | R E M O V E D | Risk listing removed at 0848 UTC 17 June | |||||
| NEODyS | 1419 June 17 | R E M O V E D | |||||||
| Assessment postings were noted by A/CC on 15 June, 16 June & 17 June - References: MPECs 2009-L47, 2009-M07 & 2009-M14 | |||||||||
| 2009 LX | NEODyS | 1401 June 18 | R E M O V E D | ||||||
| JPL Sentry | 1401 June 18 | R E M O V E D | Risk listing removed at 0849 UTC 18 June | ||||||
| Assessment postings were noted by A/CC on 13 June, 14 June, 16 June & 18 June - References: MPECs 2009-L44, 2009-M01, 2009-M11, 2009-M31 & 2009-M35 | |||||||||
| 2009 LS | NEODyS | 1330 June 16 | R E M O V E D | ||||||
| JPL Sentry | 1330 June 16 | R E M O V E D | Risk listing removed at 0851 UTC 16 June | ||||||
| Assessment postings were noted by A/CC on 13 June, 14 June, 15 June & 16 June - References: MPECs 2009-L42, 2009-L45, 2009-L46, 2009-M01, 2009-M07, 2009-M11, 2009-M14, 2009-M15, 2009-M17, 2009-M22, 2009-M31, 2009-M46 & 2009-N05 | |||||||||
| 2009 KT21 | NEODyS | 1525 June 13 | R E M O V E D | ||||||
| JPL Sentry | 1525 June 13 | R E M O V E D | Risk listing removed at 0848 UTC 13 June | ||||||
| Assessment postings were noted by A/CC on 2 June & 13 June - References: MPECs 2009-L43, 2009-M15 & 2009-M35 | |||||||||
| 2009 KK8 | NEODyS | 1606 June 20 | R E M O V E D | ||||||
| JPL Sentry | 1606 June 20 | R E M O V E D | Risk listing removed at 0849 UTC 20 June | ||||||
| Assessment postings were noted by A/CC on 7 June, 14 June & 20 June - References: MPECs 2009-L23, 2009-L45, 2009-M15 & 2009-M35 | |||||||||
| 2009 KN4 | NEODyS | 1330 June 16 | R E M O V E D | ||||||
| JPL Sentry | 1330 June 16 | R E M O V E D | Risk listing removed at 0850 UTC 16 June | ||||||
| Assessment postings were noted by A/CC on 16 June - References: MPECs 2009-M01, 2009-M11, 2009-M31, 2009-M35 & 2009-M46 | |||||||||
| 2009 KM | JPL Sentry | 1327 June 2 | R E M O V E D | Risk listing removed at 0852 UTC 2 June | |||||
| An assessment posting was noted by A/CC on 2 June - References: MPEC 2009-L06 | |||||||||
| 2009 KK | JPL Sentry | 1419 June 17 | R E M O V E D | Risk listing removed at 0852 UTC 17 June | |||||
| NEODyS | 1419 June 17 | R E M O V E D | |||||||
| Assessment postings were noted by A/CC on 2 June, 3 June, 6 June, 9 June, 10 June & 17 June - References: MPECs 2009-L06, 2009-L07, 2009-L22, 2009-L31, 2009-L32, 2009-M07 & 2009-M11 | |||||||||
| 2008 ER7 | NEODyS | 1400 July 2 | R E M O V E D | ||||||
| JPL Sentry | 1400 July 2 | R E M O V E D | Risk listing removed at 0856 UTC 2 July | ||||||
| Assessment postings were noted by A/CC on 2 July - References: MPEC 2009-N05 | |||||||||
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.