A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted During January 2010

Compiled at 0020 UTC on 1 February 2010

<< December 2009 CRT | CRT Archive Index | February 2010 CRT >>

[ Today's risk monitoring & other observing news | object risks cleared in January | 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 XONEODyS1750 Jan. 172038-208323.56e-07-4.16-4.260Based on 221 optical observations (of which 0 are rejected as outliers) from 2009/12/09.153 to 2010/01/16.546.
JPL Sentry1750 Jan. 172038-208123.0e-07-4.19-4.260Analysis 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 1 Jan., 3 Jan., 4 Jan., 5 Jan., 6 Jan., 7 Jan., 8 Jan., 9 Jan., 11 Jan., 12 Jan., 13 Jan., 14 Jan., 15 Jan. & 17 Jan.   -   References: MPECs 2010-A01, 2010-A10, 2010-A12, 2010-A14, 2010-A16, 2010-A24, 2010-A33, 2010-A39, 2010-A53, 2010-A60, 2010-A66, 2010-A74, 2010-A79 & 2010-B03
2009 WR52NEODyS1631 Jan. 112031-2090288.89e-05-5.82-5.940Based on 26 optical observations (of which 1 are rejected as outliers) from 2009/11/23.220 to 2009/12/09.291.
JPL Sentry1500 Jan. 112031-2109511.3e-04-5.72-5.910Analysis based on 25 observations spanning 16.072 days (2009-Nov-23.21917 to 2009-Dec-09.290725). Diameter approximately 0.007 km. from mean, weighted H=28.3.
Assessment postings were noted by A/CC on 11 Jan.   -   References: MPEC 2010-A53
2009 WM1NEODyS1521 Jan. 25207813.99e-09-6.27-6.270Based on 84 optical observations (of which 0 are rejected as outliers) from 2009/11/17.465 to 2010/01/24.561.
JPL Sentry1502 Jan. 25209119.3e-08-4.98-4.980Analysis 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 BU2NEODyS1637 Jan. 23R E M O V E D
JPL Sentry1637 Jan. 23R E M O V E DRisk 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 BL2NEODyS1637 Jan. 23R E M O V E D
JPL Sentry1637 Jan. 23R E M O V E DRisk 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 BBJPL Sentry1503 Jan. 18R E M O V E DRisk 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 AF40NEODyS1502 Jan. 15R E M O V E D
JPL Sentry1502 Jan. 15R E M O V E DRisk 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 AE30JPL Sentry1501 Jan. 12R E M O V E DRisk listing removed at 0951 UTC 12 Jan.
Assessment postings were noted by A/CC on 11 Jan. & 12 Jan.   -   References: MPECs 2010-A54, 2010-A60, 2010-A66, 2010-A74, 2010-A79, 2010-B01, 2010-B03 & 2010-B07
2010 AD3JPL Sentry1624 Jan. 10R E M O V E DRisk listing removed at 0949 UTC 10 Jan.
Assessment postings were noted by A/CC on 9 Jan. & 10 Jan.   -   References: MPECs 2010-A42, 2010-A49, 2010-A74, 2010-B01 & 2010-B45
2010 AR1NEODyS1625 Jan. 10R E M O V E D
JPL Sentry1624 Jan. 10R E M O V E DRisk listing removed at 0954 UTC 10 Jan.
Assessment postings were noted by A/CC on 7 Jan., 8 Jan. & 10 Jan.   -   References: MPECs 2010-A30, 2010-A33, 2010-A49, 2010-A53, 2010-A79 & 2010-B01
2010 AKNEODyS1625 Jan. 10R E M O V E D
JPL Sentry1541 Jan. 9R E M O V E DRisk listing removed at 0952 UTC 9 Jan.
Assessment postings were noted by A/CC on 7 Jan., 8 Jan., 9 Jan. & 10 Jan.   -   References: MPECs 2010-A28, 2010-A39, 2010-A49, 2010-A53, 2010-A79, 2010-B01, 2010-B03, 2010-B07 & 2010-B42
2010 AJNEODyS1625 Jan. 10R E M O V E D
JPL Sentry1624 Jan. 10R E M O V E DRisk listing removed at 0948 UTC 10 Jan.
Assessment postings were noted by A/CC on 7 Jan., 8 Jan. & 10 Jan.   -   References: MPECs 2010-A27, 2010-A33, 2010-A49, 2010-A53, 2010-A74, 2010-A79, 2010-B01, 2010-B03, 2010-B07, 2010-B45 & 2010-B56
2009 YS6JPL Sentry1544 Jan. 5R E M O V E DRisk listing removed at 0938 UTC 5 Jan.
NEODyS1544 Jan. 5R E M O V E D
Assessment postings were noted by A/CC on 4 Jan. & 5 Jan.   -   References: MPECs 2010-A12, 2010-A14, 2010-A16, 2010-A49, 2010-B34, 2010-B42 & 2010-B45
2009 YGJPL Sentry1544 Jan. 5R E M O V E DRisk listing removed at 0951 UTC 5 Jan.
NEODyS1544 Jan. 5R E M O V E D
An assessment posting was noted by A/CC on 5 Jan.   -   References: MPECs 2010-A14, 2010-A16 & 2010-A53
2005 UONEODyS1505 Jan. 21R E M O V E D
JPL Sentry1800 Jan. 20R E M O V E DRisk 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.


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