A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted During April 2010

Compiled at 0034 UTC on 1 May 2010

<< March 2010 CRT | CRT Archive Index | May 2010 CRT >>

[ Today's risk monitoring & other observing news | object risks cleared in April | 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
2010 HS20NEODyS1352 April 30203013.23e-06-4.36-4.360Based on 36 optical observations (of which 0 are rejected as outliers) from 2010/04/20.420 to 2010/04/29.287.
JPL Sentry1352 April 302030-210144.4e-06-4.30-4.340Analysis based on 36 observations spanning 8.8667 days (2010-Apr-20.41913 to 2010-Apr-29.285846). Diameter approximately 0.076 km. from mean, weighted H=23.3.
Assessment postings were noted by A/CC on 25 April, 26 April, 27 April, 29 April & 30 April   -   References: MPECs 2010-H62, 2010-H66, 2010-H70 & 2010-H73
2010 HP20NEODyS1551 April 242021-20903463.93e-05-6.19-7.790Based on 12 optical observations (of which 0 are rejected as outliers) from 2010/04/20.449 to 2010/04/20.497.
JPL Sentry2209 April 232021-20795395.0e-05-6.02-7.780Analysis based on 12 observations spanning .04822 days (2010-Apr-20.44799 to 2010-Apr-20.49621). Diameter approximately 0.008 km. from mean, weighted H=28.3.
Assessment postings were noted by A/CC on 23 April & 24 April   -   References: MPEC 2010-H46
2010 GV23JPL Sentry1547 April 172096-210526.3e-07-7.91-8.090Analysis based on 63 observations spanning 6.9854 days (2010-Apr-09.21954 to 2010-Apr-16.20491). Diameter approximately 0.010 km. from mean, weighted H=27.6.
Assessment postings were noted by A/CC on 10 April, 13 April, 14 April, 15 April, 16 April & 17 April   -   References: MPECs 2010-G73, 2010-G98, 2010-G106, 2010-G115, 2010-H01 & 2010-H06
2010 GM23NEODyS1400 April 12208724.57e-07-6.31-6.440Based on 54 optical observations (of which 1 are rejected as outliers) from 2010/04/08.312 to 2010/04/11.324.
JPL Sentry1400 April 122087-2108191.3e-05-4.94-5.440Analysis based on 54 observations spanning 3.0120 days (2010-Apr-08.31133 to 2010-Apr-11.32329). Diameter approximately 0.040 km. from mean, weighted H=24.7.
Assessment postings were noted by A/CC on 10 April, 11 April & 12 April   -   References: MPECs 2010-G61, 2010-G72, 2010-G81 & 2010-G88
2010 GH7JPL Sentry1549 April 202099-2110238.1e-05-5.70-6.190Analysis based on 62 observations spanning 9.9303 days (2010-Apr-07.38604 to 2010-Apr-17.316375). Diameter approximately 0.012 km. from mean, weighted H=27.3.
NEODyS1235 April 9R E M O V E D
Assessment postings were noted by A/CC on 7 April, 8 April, 9 April, 10 April, 11 April, 12 April, 13 April, 14 April, 15 April, 17 April & 20 April   -   References: MPECs 2010-G39, 2010-G52, 2010-G72, 2010-G81, 2010-G88, 2010-G98, 2010-G106, 2010-G115, 2010-H06 & 2010-H29
2010 FDNEODyS1351 April 28R E M O V E D
JPL Sentry1351 April 282085-210429.1e-07-6.77-6.810Analysis based on 42 observations spanning 30.106 days (2010-Mar-16.34477 to 2010-Apr-15.45123). Diameter approximately 0.021 km. from mean, weighted H=26.0.
Assessment postings were noted by A/CC on 15 April, 16 April & 28 April   -   References: MPECs 2010-G115, 2010-H01 & 2010-H69
2009 WM1JPL Sentry1424 April 5209118.9e-08-5.00-5.000Analysis based on 86 observations spanning 135.79 days (2009-Nov-17.4641 to 2010-Apr-02.250112). Diameter approximately 0.280 km. from mean, weighted H=20.4.
NEODyS1424 April 5R E M O V E D
Assessment postings were noted by A/CC on 5 April   -   References: MPEC 2010-G20
2004 FU162JPL Sentry0601 April 22011-21089555.8e-05-5.32-6.010Analysis 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 2 April   -   References: no recent MPECs
153814 2001 WN5NEODyS1549 April 202099-212246.33e-10-6.28-6.540Based on 162 optical observations (of which 4 are rejected as outliers) from 1996/02/10.397 to 2010/04/19.274.
JPL Sentry1549 April 20R E M O V E DRisk listing removed at 1011 UTC 20 April
Assessment postings were noted by A/CC on 6 April, 7 April, 9 April, 10 April, 12 April, 14 April, 16 April & 20 April   -   References: DOUs 2010-G28, 2010-G36, 2010-G52, 2010-G72, 2010-G88, 2010-G106, 2010-H01 & 2010-H29
C   L   E   A   R   E   D
2010 HV20JPL Sentry1348 April 27R E M O V E DRisk listing removed at 0952 UTC 27 April
Assessment postings were noted by A/CC on 26 April & 27 April   -   References: MPECs 2010-H64, 2010-H66, 2010-H69, 2010-H70 & 2010-H73
2010 HG20JPL Sentry1342 April 22R E M O V E DRisk listing removed at 0952 UTC 22 April
An assessment posting was noted by A/CC on 22 April   -   References: MPECs 2010-H38, 2010-H40 & 2010-H63
2010 GX62JPL Sentry1331 April 21R E M O V E DRisk listing removed at 0950 UTC 21 April
NEODyS1547 April 17R E M O V E D
Assessment postings were noted by A/CC on 14 April, 15 April, 16 April, 17 April & 21 April   -   References: MPECs 2010-G108, 2010-G115, 2010-H01, 2010-H06 & 2010-H34
2010 GE35NEODyS1352 April 16R E M O V E D
JPL Sentry1352 April 15R E M O V E DRisk listing removed at 1030 UTC 15 April
Assessment postings were noted by A/CC on 13 April, 14 April, 15 April & 16 April   -   References: MPECs 2010-G102, 2010-G106, 2010-G115, 2010-H01, 2010-H06, 2010-H13, 2010-H17, 2010-H29, 2010-H34, 2010-H40, 2010-H43, 2010-H63, 2010-H66, 2010-H69 & 2010-H70
2010 GR33JPL Sentry1350 April 14R E M O V E DRisk listing removed at 1030 UTC 14 April
NEODyS1350 April 14R E M O V E D
Assessment postings were noted by A/CC on 12 April, 13 April & 14 April   -   References: MPECs 2010-G92, 2010-G106, 2010-G115, 2010-H13 & 2010-H17
2010 GK23NEODyS1400 April 12R E M O V E D
JPL Sentry1400 April 12R E M O V E DRisk listing removed at 1131 UTC 12 April
Assessment postings were noted by A/CC on 10 April & 12 April   -   References: MPECs 2010-G59, 2010-G72, 2010-G88 & 2010-G98
2010 GT7JPL Sentry1400 April 12R E M O V E DRisk listing removed at 1130 UTC 12 April
NEODyS1505 April 10R E M O V E D
Assessment postings were noted by A/CC on 8 April, 9 April, 10 April, 11 April & 12 April   -   References: MPECs 2010-G48, 2010-G52, 2010-G72, 2010-G81, 2010-G88, 2010-G98, 2010-G106, 2010-G115, 2010-H06, 2010-H13, 2010-H29, 2010-H60, 2010-H63, 2010-H66 & 2010-H70
2010 GS7JPL Sentry1235 April 9R E M O V E DRisk listing removed at 1030 UTC 9 April
Assessment postings were noted by A/CC on 8 April & 9 April   -   References: MPECs 2010-G47, 2010-G52, 2010-G72, 2010-G81, 2010-G88, 2010-G98, 2010-G106, 2010-G115, 2010-H01, 2010-H06, 2010-H13, 2010-H17, 2010-H29, 2010-H34, 2010-H40, 2010-H60, 2010-H63, 2010-H66, 2010-H70 & 2010-H73
2010 GY6JPL Sentry1515 April 8R E M O V E DRisk listing removed at 0951 UTC 8 April
Assessment postings were noted by A/CC on 7 April & 8 April   -   References: MPECs 2010-G33, 2010-G36, 2010-G45, 2010-G52, 2010-G81, 2010-G98, 2010-G106, 2010-H01 & 2010-H06
2010 GD6JPL Sentry1235 April 9R E M O V E DRisk listing removed at 0953 UTC 9 April
NEODyS1412 April 7R E M O V E D
Assessment postings were noted by A/CC on 5 April, 6 April, 7 April & 9 April   -   References: MPECs 2010-G26, 2010-G36, 2010-G52, 2010-G72, 2010-G81 & 2010-H17
2010 GB6NEODyS1412 April 7R E M O V E D
Assessment postings were noted by A/CC on 6 April & 7 April   -   References: MPECs 2010-G24, 2010-G36, 2010-G52, 2010-G72, 2010-G81, 2010-G88, 2010-G98, 2010-G106, 2010-G115 & 2010-H17
2010 GA6NEODyS1515 April 8R E M O V E D
JPL Sentry1515 April 8R E M O V E DRisk listing removed at 0952 UTC 8 April
Assessment postings were noted by A/CC on 5 April, 6 April, 7 April & 8 April   -   References: MPECs 2010-G23, 2010-G36, 2010-G45, 2010-G52, 2010-G72 & 2010-G88
2010 FC81NEODyS1412 April 7R E M O V E D
JPL Sentry1411 April 7R E M O V E DRisk listing removed at 0950 UTC 7 April
Assessment postings were noted by A/CC on 3 April, 4 April & 7 April   -   References: MPECs 2010-G09, 2010-G36, 2010-G45, 2010-G72, 2010-G115, 2010-H17, 2010-H29 & 2010-H66
2010 FX80JPL Sentry1400 April 12R E M O V E DRisk listing removed at 1049 UTC 12 April
Assessment postings were noted by A/CC on 3 April & 12 April   -   References: MPECs 2010-G04 & 2010-G88
2010 FF10NEODyS1445 April 11R E M O V E D
JPL Sentry1445 April 11R E M O V E DRisk listing removed at 1050 UTC 11 April
Assessment postings were noted by A/CC on 10 April & 11 April   -   References: MPECs 2010-G54, 2010-G81, 2010-G88, 2010-G98, 2010-G106, 2010-G115, 2010-H06, 2010-H13, 2010-H29, 2010-H34, 2010-H47, 2010-H60 & 2010-H70
2010 FE7NEODyS1235 April 9R E M O V E D
JPL Sentry1235 April 9R E M O V E DRisk listing removed at 0951 UTC 9 April
Assessment postings were noted by A/CC on 9 April   -   References: MPECs 2010-G52 & 2010-G72
2010 EW45NEODyS1605 April 1R E M O V E D
JPL Sentry1406 April 1R E M O V E DRisk listing removed at 0951 UTC 1 April
Assessment postings were noted by A/CC on 1 April   -   References: MPECs 2010-G01, 2010-G45 & 2010-G98
2005 YU55JPL Sentry1641 April 22R E M O V E DRisk listing removed at 1639 UTC 22 April
NEODyS1342 April 22R E M O V E D
Assessment postings were noted by A/CC on 6 April, 7 April, 8 April, 10 April, 11 April, 12 April, 13 April, 14 April, 15 April, 16 April, 17 April, 18 April, 19 April & 22 April   -   References: MPECs 2010-G03, 2010-G15, 2010-G20, 2010-G28, 2010-G36, 2010-G45, 2010-G52, 2010-G72, 2010-G81, 2010-G88, 2010-G98, 2010-G106, 2010-G115, 2010-H01, 2010-H06, 2010-H13, 2010-H17, 2010-H29, 2010-H40, 2010-H43, 2010-H47 & 2010-H70, radar: 20 April & 21 April

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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