A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted During November 2009

Compiled at 1547 UTC on 3 December 2009

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[ Today's risk monitoring & other observing news | object risks cleared in November | 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 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

2009 WO106	NEODyS	1648 Nov. 28	2011-2078	24	4.73e-09	-4.54	-4.77	0	Based on 25 optical observations (of which 0 are rejected as outliers) from 2009/11/26.509 to 2009/11/27.546.
	JPL Sentry	1902 Nov. 27	2022-2108	44	7.6e-09	-5.06	-5.84	0	Analysis based on 25 observations spanning 1.0371 days (2009-Nov-26.50819 to 2009-Nov-27.5453). Diameter approximately 0.484 km. from mean, weighted H=19.2.
	Assessment postings were noted by A/CC on 27 Nov. & 28 Nov. - References: MPEC 2009-W130

2009 WF106	JPL Sentry	1500 Nov. 30	2015-2073	2	1.0e-09	-5.24	-5.25	0	Analysis based on 35 observations spanning 3.9680 days (2009-Nov-25.40833 to 2009-Nov-29.37633). Diameter approximately 0.350 km. from mean, weighted H=19.9.
	NEODyS	1500 Nov. 30	R E M O V E D
	Assessment postings were noted by A/CC on 27 Nov., 28 Nov. & 30 Nov. - References: MPECs 2009-W123 & 2009-W138

2009 WZ53	JPL Sentry	1451 Nov. 27	2020-2104	6	2.6e-08	-7.05	-7.43	0	Analysis based on 22 observations spanning 2.9471 days (2009-Nov-23.28123 to 2009-Nov-26.22829). Diameter approximately 0.052 km. from mean, weighted H=24.1.
	NEODyS	1451 Nov. 27	R E M O V E D
	Assessment postings were noted by A/CC on 24 Nov., 25 Nov. & 27 Nov. - References: MPECs 2009-W87 & 2009-W119

2009 WR52	NEODyS	1655 Nov. 29	2031-2090	36	7.84e-05	-5.87	-6.00	0	Based on 24 optical observations (of which 2 are rejected as outliers) from 2009/11/23.220 to 2009/11/27.153.
	JPL Sentry	1654 Nov. 29	2031-2109	62	1.1e-04	-5.76	-5.94	0	Analysis based on 23 observations spanning 3.9327 days (2009-Nov-23.21917 to 2009-Nov-27.15186). Diameter approximately 0.007 km. from mean, weighted H=28.3.
	Assessment postings were noted by A/CC on 23 Nov., 24 Nov., 25 Nov., 26 Nov. & 29 Nov. - References: MPECs 2009-W84, 2009-W107, 2009-W118 & 2009-W136

2009 WQ52	NEODyS	1606 Nov. 26	R E M O V E D
	JPL Sentry	1606 Nov. 26	2037	1	3.7e-07	-7.61	-7.61	0	Analysis based on 21 observations spanning 2.6368 days (2009-Nov-23.19879 to 2009-Nov-25.835553). Diameter approximately 0.008 km. from mean, weighted H=28.2.
	Assessment postings were noted by A/CC on 23 Nov., 24 Nov., 25 Nov. & 26 Nov. - References: MPECs 2009-W83, 2009-W107 & 2009-W118

2009 WX51	JPL Sentry	1500 Nov. 30	2048-2068	2	7.5e-10	-6.57	-6.63	0	Analysis based on 46 observations spanning 6.9933 days (2009-Nov-22.24934 to 2009-Nov-29.24263). Diameter approximately 0.326 km. from mean, weighted H=20.1.
	NEODyS	1500 Nov. 30	2048	1	3.33e-10	-6.83	-6.83	0	Based on 46 optical observations (of which 0 are rejected as outliers) from 2009/11/22.250 to 2009/11/29.243.
	Assessment postings were noted by A/CC on 23 Nov., 24 Nov., 25 Nov., 29 Nov. & 30 Nov. - References: MPECs 2009-W76, 2009-W107, 2009-W136 & 2009-W138

2009 WQ25	NEODyS	1654 Nov. 29	2051	1	3.24e-11	-9.67	-9.67	0	Based on 29 optical observations (of which 1 are rejected as outliers) from 2009/11/21.164 to 2009/11/27.121.
	JPL Sentry	1654 Nov. 29	2051-2094	2	7.7e-08	-6.61	-6.74	0	Analysis based on 28 observations spanning 5.9572 days (2009-Nov-21.16281 to 2009-Nov-27.11998). Diameter approximately 0.055 km. from mean, weighted H=23.9.
	Assessment postings were noted by A/CC on 23 Nov., 24 Nov., 25 Nov. & 29 Nov. - References: MPECs 2009-W66, 2009-W86, 2009-W107 & 2009-W136

2009 WW7	NEODyS	1519 Nov. 25	2050-2089	14	1.39e-05	-7.00	-7.09	0	Based on 32 optical observations (of which 2 are rejected as outliers) from 2009/11/19.239 to 2009/11/23.236.
	JPL Sentry	1519 Nov. 25	2050-2108	27	2.3e-05	-6.84	-7.10	0	Analysis based on 31 observations spanning 3.9974 days (2009-Nov-19.23811 to 2009-Nov-23.23546). Diameter approximately 0.006 km. from mean, weighted H=28.9.
	Assessment postings were noted by A/CC on 20 Nov., 21 Nov., 23 Nov. & 25 Nov. - References: MPECs 2009-W51, 2009-W73 & 2009-W107

2009 WP6	NEODyS	1538 Nov. 20	2067-2090	30	2.9e-05	-5.16	-5.48	0	Based on 18 optical observations (of which 0 are rejected as outliers) from 2009/11/18.253 to 2009/11/20.186.
	JPL Sentry	1538 Nov. 20	2067-2108	54	3.5e-05	-5.09	-5.44	0	Analysis based on 18 observations spanning 1.9327 days (2009-Nov-18.25267 to 2009-Nov-20.18535). Diameter approximately 0.015 km. from mean, weighted H=26.8.
	Assessment postings were noted by A/CC on 19 Nov. & 20 Nov. - References: MPECs 2009-W40 & 2009-W47

2009 WJ6	NEODyS	1639 Nov. 21	R E M O V E D
	JPL Sentry	1639 Nov. 21	2049-2056	2	4.1e-08	-8.37	-8.39	0	Analysis based on 54 observations spanning 1.0263 days (2009-Nov-19.26657 to 2009-Nov-20.292876). Diameter approximately 0.010 km. from mean, weighted H=27.6.
	Assessment postings were noted by A/CC on 19 Nov., 20 Nov. & 21 Nov. - References: MPECs 2009-W33, 2009-W47 & 2009-W58

2009 WM1	NEODyS	1500 Nov. 30	2067-2079	2	8.94e-08	-4.92	-4.97	0	Based on 75 optical observations (of which 0 are rejected as outliers) from 2009/11/17.465 to 2009/11/29.732.
	JPL Sentry	1500 Nov. 30	2032	1	7.6e-07	-3.53	-3.53	0	Analysis based on 75 observations spanning 12.267 days (2009-Nov-17.4641 to 2009-Nov-29.73116). Diameter approximately 0.270 km. from mean, weighted H=20.4.
	Assessment postings were noted by A/CC on 18 Nov., 19 Nov., 20 Nov., 21 Nov., 22 Nov., 23 Nov., 24 Nov., 25 Nov., 26 Nov., 27 Nov., 28 Nov. & 30 Nov. - References: MPECs 2009-W30, 2009-W47, 2009-W58, 2009-W63, 2009-W73, 2009-W86, 2009-W107, 2009-W118, 2009-W119, 2009-W134 & 2009-W138

2009 WJ1	JPL Sentry	1648 Nov. 28	2078	1	5.8e-09	-6.43	-6.43	0	Analysis based on 46 observations spanning 10.967 days (2009-Nov-17.10881 to 2009-Nov-28.07621). Diameter approximately 0.200 km. from mean, weighted H=21.1.
	NEODyS	1648 Nov. 28	R E M O V E D
	Assessment postings were noted by A/CC on 18 Nov., 19 Nov., 20 Nov., 21 Nov., 22 Nov., 23 Nov., 24 Nov., 25 Nov. & 28 Nov. - References: MPECs 2009-W27, 2009-W31, 2009-W47, 2009-W58, 2009-W63, 2009-W73, 2009-W86, 2009-W107 & 2009-W134

2009 VZ39	NEODyS	0156 Nov. 14	2030-2087	11	1.45e-07	-8.53	-8.94	0	Based on 8 optical observations (of which 0 are rejected as outliers) from 2009/11/10.273 to 2009/11/10.316.
2009 VZ39	An assessment posting was noted by A/CC on 14 Nov. - References: MPEC 2009-V65

2009 VT1	NEODyS	1523 Nov. 12	2046-2089	11	3.83e-06	-7.68	-7.94	0	Based on 26 optical observations (of which 0 are rejected as outliers) from 2009/11/10.318 to 2009/11/11.497.
	JPL Sentry	1523 Nov. 12	2046-2105	4	2.3e-06	-7.86	-7.95	0	Analysis based on 26 observations spanning 1.1784 days (2009-Nov-10.31746 to 2009-Nov-11.49584). Diameter approximately 0.004 km. from mean, weighted H=29.6.
	Assessment postings were noted by A/CC on 10 Nov., 11 Nov. & 12 Nov. - References: MPECs 2009-V42 & 2009-V50

2009 VA	NEODyS	1623 Nov. 7	2025-2047	14	2.77e-05	-5.91	-5.92	0	Based on 10 optical observations (of which 0 are rejected as outliers) from 2009/11/06.259 to 2009/11/06.383.
	JPL Sentry	2339 Nov. 6	2025-2048	9	3.0e-05	-5.87	-5.88	0	Analysis based on 10 observations spanning .12466 days (2009-Nov-06.25793 to 2009-Nov-06.38259). Diameter approximately 0.006 km. from mean, weighted H=28.6.
	Assessment postings were noted by A/CC on 6 Nov. & 7 Nov. - References: MPEC 2009-V22

2009 BD	NEODyS	1631 Nov. 16	2071-2090	5	1.1e-05	-6.95	-7.18	0	Based on 122 optical observations (of which 1 are rejected as outliers) from 2009/01/16.277 to 2009/11/01.469.
	JPL Sentry	1523 Nov. 12	2071-2093	7	8.0e-06	-7.14	-7.54	0	Analysis based on 121 observations spanning 289.19 days (2009-Jan-16.27641 to 2009-Nov-01.468038). Diameter approximately 0.007 km. from mean, weighted H=28.4.
	Assessment postings were noted by A/CC on 12 Nov. & 16 Nov. - References: MPEC 2009-V50
C L E A R E D
2009 WA105	JPL Sentry	1451 Nov. 27	R E M O V E D						Risk listing removed at 1029 UTC 27 Nov.
2009 WA105	Assessment postings were noted by A/CC on 26 Nov. & 27 Nov. - References: MPECs 2009-W113, 2009-W118, 2009-W119, 2009-W136, 2009-W138, 2009-X02 & 2009-X03

2009 WG104	JPL Sentry	1451 Nov. 27	R E M O V E D						Risk listing removed at 1029 UTC 27 Nov.
	NEODyS	1451 Nov. 27	R E M O V E D
	Assessment postings were noted by A/CC on 25 Nov. & 27 Nov. - References: MPECs 2009-W105, 2009-W119, 2009-W136 & 2009-X02

2009 WF104	NEODyS	1451 Nov. 27	R E M O V E D
2009 WF104	Assessment postings were noted by A/CC on 25 Nov. & 27 Nov. - References: MPECs 2009-W104, 2009-W119 & 2009-X02

2009 WD54	JPL Sentry	1648 Nov. 28	R E M O V E D						Risk listing removed at 1130 UTC 28 Nov.
2009 WD54	Assessment postings were noted by A/CC on 24 Nov. & 28 Nov. - References: MPECs 2009-W91 & 2009-W134

2009 WN25	JPL Sentry	1606 Nov. 26	R E M O V E D						Risk listing removed at 0951 UTC 26 Nov.
	NEODyS	1519 Nov. 25	R E M O V E D
	Assessment postings were noted by A/CC on 24 Nov., 25 Nov. & 26 Nov. - References: MPECs 2009-W64, 2009-W73, 2009-W86, 2009-W107, 2009-W118, 2009-W119, 2009-W136, 2009-X02 & 2009-X03

2009 WY7	JPL Sentry	1639 Nov. 21	R E M O V E D						Risk listing removed at 1301 UTC 21 Nov.
2009 WY7	Assessment postings were noted by A/CC on 20 Nov. & 21 Nov. - References: MPECs 2009-W53, 2009-W58, 2009-W63, 2009-W73 & 2009-W107

2009 WD7	JPL Sentry	1639 Nov. 21	R E M O V E D						Risk listing removed at 1052 UTC 21 Nov.
2009 WD7	Assessment postings were noted by A/CC on 20 Nov. & 21 Nov. - References: MPECs 2009-W44, 2009-W58, 2009-W86 & 2009-W118

2009 WR6	NEODyS	1639 Nov. 21	R E M O V E D
	JPL Sentry	1639 Nov. 21	R E M O V E D						Risk listing removed at 1049 UTC 21 Nov.
	Assessment postings were noted by A/CC on 19 Nov., 20 Nov. & 21 Nov. - References: MPECs 2009-W42, 2009-W58, 2009-W107, 2009-W119, 2009-X02 & 2009-X04

2009 WK6	NEODyS	1522 Nov. 23	R E M O V E D
2009 WK6	Assessment postings were noted by A/CC on 20 Nov. & 23 Nov. - References: MPECs 2009-W35, 2009-W63, 2009-W73, 2009-W86 & 2009-W119

2009 WF	NEODyS	1522 Nov. 18	R E M O V E D
	JPL Sentry	1522 Nov. 18	R E M O V E D						Risk listing removed at 0950 UTC 18 Nov.
	Assessment postings were noted by A/CC on 17 Nov. & 18 Nov. - References: MPECs 2009-W13, 2009-W17, 2009-W47, 2009-W63, 2009-W73, 2009-W118, 2009-W136 & 2009-X02

2009 WB	JPL Sentry	1452 Nov. 17	R E M O V E D						Risk listing removed at 0950 UTC 17 Nov.
2009 WB	Assessment postings were noted by A/CC on 16 Nov. & 17 Nov. - References: MPECs 2009-W07, 2009-W14, 2009-W17, 2009-W31, 2009-W47, 2009-W58, 2009-W63, 2009-W73, 2009-W86 & 2009-W118

2009 VA26	JPL Sentry	1639 Nov. 21	R E M O V E D						Risk listing removed at 1051 UTC 21 Nov.
	NEODyS	1538 Nov. 20	R E M O V E D
	Assessment postings were noted by A/CC on 12 Nov., 13 Nov., 15 Nov., 17 Nov., 18 Nov., 19 Nov., 20 Nov. & 21 Nov. - References: MPECs 2009-V64, 2009-V69, 2009-W14, 2009-W17, 2009-W31, 2009-W47, 2009-W58, 2009-W134 & 2009-W136

2009 VZ25	JPL Sentry	1544 Nov. 22	R E M O V E D						Risk listing removed at 0949 UTC 22 Nov.
	NEODyS	1639 Nov. 21	R E M O V E D
	Assessment postings were noted by A/CC on 12 Nov., 13 Nov., 21 Nov. & 22 Nov. - References: MPECs 2009-V63, 2009-W49, 2009-W63, 2009-W73, 2009-W86 & 2009-W107

2009 VR25	NEODyS	1538 Nov. 15	R E M O V E D
	JPL Sentry	1538 Nov. 15	R E M O V E D						Risk listing removed at 1031 UTC 15 Nov.
	Assessment postings were noted by A/CC on 12 Nov., 13 Nov. & 15 Nov. - References: MPECs 2009-V52, 2009-V69, 2009-W14 & 2009-W63

2009 VO24	NEODyS	1641 Nov. 14	R E M O V E D
	JPL Sentry	1641 Nov. 14	R E M O V E D						Risk listing removed at 0950 UTC 14 Nov.
	Assessment postings were noted by A/CC on 12 Nov. & 14 Nov. - References: MPECs 2009-V48, 2009-V67, 2009-W14, 2009-W31, 2009-W58 & 2009-W138

2009 VX	JPL Sentry	2202 Nov. 11	R E M O V E D						Risk listing removed at 2149 UTC 11 Nov.
2009 VX	Assessment postings were noted by A/CC on 9 Nov. & 11 Nov. - References: MPECs 2009-V34, 2009-V44, 2009-V50, 2009-V66 & 2009-W17

2009 VT	JPL Sentry	1526 Nov. 11	R E M O V E D						Risk listing removed at 0953 UTC 11 Nov.
2009 VT	Assessment postings were noted by A/CC on 9 Nov. & 11 Nov. - References: MPECs 2009-V30, 2009-V43, 2009-V50, 2009-W14, 2009-W58, 2009-W107 & 2009-W119

1998 HJ3	JPL Sentry	1538 Nov. 20	R E M O V E D						Risk listing removed at 1515 UTC 20 Nov.
1998 HJ3	An assessment posting was noted by A/CC on 20 Nov. - References: MPECs 2009-W48, 2009-W58, 2009-W73 & 2009-W136

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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