A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted in the Last 31 Days

Compiled at 1554 UTC on 27 August 2016

[ The Tracking News | ephemerides | cleared ]

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 CLOMON2 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
443104 2013 XK22NEODyS1548 Aug. 52101-210732.18e-05-4.65-4.650Based on 99 optical observations (of which 1 are rejected as outliers) from 2013-12-14.432 to 2016-07-30.050.
JPL Sentry1614 Aug. 12101-210221.9e-05-4.69-4.690Analysis based on 98 observations spanning 958.62 days (2013-Dec-14.43128 to 2016-Jul-30.048786). Diameter approximately 0.050 km. from mean, weighted H=24.2.
Assessment postings were noted by A/CC on 1 Aug., 2 Aug. & 5 Aug.   -   References: DOU 2016-P01
2016 PR66NEODyS1721 Aug. 232021-2113227.18e-09-7.07-7.360Based on 13 optical observations (of which 0 are rejected as outliers) from 2016-08-06.426 to 2016-08-07.205.
JPL Sentry1540 Aug. 192021-2113262.0e-08-6.45-6.670Analysis based on 7 observations spanning .77845 days (2016-Aug-06.42529 to 2016-Aug-07.203737). Diameter approximately 0.073 km. from mean, weighted H=23.3.
Assessment postings were noted by A/CC on 17 Aug., 18 Aug., 19 Aug. & 23 Aug.   -   References: DOUs 2016-Q06 & 2016-Q08
2016 PO66NEODyS1637 Aug. 242021-2116314.63e-08-5.42-5.720Based on 14 optical observations (of which 0 are rejected as outliers) from 2016-08-01.452 to 2016-08-02.390.
JPL Sentry1709 Aug. 172020-21153771.2e-06-4.14-5.320Analysis based on 7 observations spanning .93868 days (2016-Aug-01.4509 to 2016-Aug-02.389578). Diameter approximately 0.138 km. from mean, weighted H=21.9.
Assessment postings were noted by A/CC on 17 Aug., 18 Aug. & 24 Aug.   -   References: DOU 2016-Q06
2016 PS26JPL Sentry1551 Aug. 27R E M O V E DRisk listing removed at 1459 UTC 27 Aug.
NEODyS1637 Aug. 242046-210232.26e-08-7.69-7.690Based on 23 optical observations (of which 0 are rejected as outliers) from 2016-08-08.373 to 2016-08-12.205.
Assessment postings were noted by A/CC on 10 Aug., 11 Aug., 12 Aug., 13 Aug., 14 Aug., 24 Aug. & 27 Aug.   -   References: MPEC 2016-P81 plus DOUs 2016-P104, 2016-P110 & 2016-Q20
2016 NL56JPL Sentry1900 Aug. 172019-2113947.0e-07-2.81-3.430Analysis based on 6 observations spanning 2.7808 days (2016-Jul-12.44383 to 2016-Jul-15.2246). Diameter approximately 0.258 km. from mean, weighted H=20.6.
An assessment posting was noted by A/CC on 17 Aug.   -   References: DOU 2016-Q06
2016 NJ56NEODyS1721 Aug. 232035-207993.95e-08-7.28-7.320Based on 14 optical observations (of which 0 are rejected as outliers) from 2016-07-06.315 to 2016-07-07.356.
JPL Sentry1540 Aug. 192035-2079105.5e-08-7.16-7.300Analysis based on 8 observations spanning 1.0408 days (2016-Jul-06.314709 to 2016-Jul-07.355484). Diameter approximately 0.033 km. from mean, weighted H=25.1.
Assessment postings were noted by A/CC on 17 Aug., 18 Aug., 19 Aug. & 23 Aug.   -   References: DOUs 2016-Q06 & 2016-Q08
2016 NL39NEODyS1615 Aug. 122057-21162088.44e-04-4.61-4.770Based on 67 optical observations (of which 0 are rejected as outliers) from 2016-07-13.464 to 2016-08-10.439.
JPL Sentry1934 Aug. 112055-2115823.7e-04-4.98-5.610Analysis based on 67 observations spanning 27.975 days (2016-Jul-13.462934 to 2016-Aug-10.438324). Diameter approximately 0.010 km. from mean, weighted H=27.6.
Assessment postings were noted by A/CC on 27 July, 28 July, 29 July, 30 July, 31 July, 1 Aug., 4 Aug., 5 Aug., 8 Aug., 9 Aug., 10 Aug., 11 Aug. & 12 Aug.   -   References: DOUs 2016-O405, 2016-O406, 2016-O409, 2016-O412, 2016-P19, 2016-P58, 2016-P76 & 2016-P86
2016 JB29NEODyS1721 Aug. 232090-210227.26e-07-6.27-6.280Based on 154 optical observations (of which 4 are rejected as outliers) from 2016-05-11.375 to 2016-08-09.603.
JPL Sentry1651 Aug. 14209011.6e-07-6.93-6.930Analysis based on 141 observations spanning 90.228 days (2016-May-11.37449 to 2016-Aug-09.602216). Diameter approximately 0.039 km. from mean, weighted H=24.7.
Assessment postings were noted by A/CC on 29 July, 30 July, 4 Aug., 5 Aug., 12 Aug., 14 Aug. & 23 Aug.   -   References: DOUs 2016-O406, 2016-O409, 2016-P19, 2016-P104 & 2016-P121
2015 VO142NEODyS1637 Aug. 242073-2114146.55e-07-8.53-8.840Based on 113 optical observations (of which 0 are rejected as outliers) from 2015-11-06.498 to 2015-11-22.068.
JPL Sentry1611 Aug. 172046-2110153.7e-06-7.72-8.430Analysis based on 108 observations spanning 15.570 days (2015-Nov-06.497654 to 2015-Nov-22.06765). Diameter approximately 0.005 km. from mean, weighted H=29.0.
Assessment postings were noted by A/CC on 17 Aug., 18 Aug. & 24 Aug.   -   References: DOU 2016-Q06
2013 VJ13NEODyS1648 July 28R E M O V E D
JPL Sentry1530 July 27209918.9e-10-8.55-8.540Analysis based on 52 observations spanning 35.929 days (2013-Nov-01.309556 to 2013-Dec-07.23885). Diameter approximately 0.060 km. from mean, weighted H=23.8.
Assessment postings were noted by A/CC on 27 July & 28 July   -   References: DOU 2016-O401
2013 TP4NEODyS1648 July 28202615.86e-05-4.49-4.490Based on 23 optical observations (of which 0 are rejected as outliers) from 2013-10-02.391 to 2013-10-12.304.
JPL Sentry1530 July 27202616.2e-05-4.36-4.360Analysis based on 23 observations spanning 9.9136 days (2013-Oct-02.389801 to 2013-Oct-12.30343). Diameter approximately 0.011 km. from mean, weighted H=27.5.
Assessment postings were noted by A/CC on 27 July & 28 July   -   References: DOU 2016-O401
2011 UM169NEODyS1648 July 282099-2107271.64e-05-5.00-5.250Based on 40 optical observations (of which 0 are rejected as outliers) from 2011-10-26.464 to 2011-11-03.127.
JPL Sentry1530 July 272100-2107191.7e-05-4.97-5.250Analysis based on 40 observations spanning 7.6624 days (2011-Oct-26.463709 to 2011-Nov-03.12613). Diameter approximately 0.033 km. from mean, weighted H=25.0.
Assessment postings were noted by A/CC on 27 July & 28 July   -   References: DOU 2016-O401
2010 UKJPL Sentry1530 July 272069-2115202.3e-05-5.81-6.020Analysis based on 79 observations spanning 14.713 days (2010-Oct-17.49652 to 2010-Nov-01.2099). Diameter approximately 0.014 km. from mean, weighted H=26.9.
An assessment posting was noted by A/CC on 27 July   -   References: DOU 2016-O401
2008 UV99JPL Sentry2212 July 272019-2111321.6e-07-3.44-3.550Analysis based on 22 observations spanning .90541 days (2008-Oct-31.11917 to 2008-Nov-01.02458). Diameter approximately 0.399 km. from mean, weighted H=19.6.
An assessment posting was noted by A/CC on 27 July   -   References: no recent MPECs
2008 JD33JPL Sentry2212 July 272018-21061331.1e-07-7.87-8.770Analysis based on 13 observations spanning .11183 days (2008-May-15.28689 to 2008-May-15.39872). Diameter approximately 0.010 km. from mean, weighted H=27.9.
An assessment posting was noted by A/CC on 27 July   -   References: no recent MPECs
C   L   E   A   R   E   D
2016 PO39JPL Sentry1718 Aug. 23R E M O V E DRisk listing removed at 1459 UTC 23 Aug.
Assessment postings were noted by A/CC on 12 Aug., 14 Aug. & 23 Aug.   -   References: MPEC 2016-P106 plus DOUs 2016-P121, 2016-Q13, 2016-Q14 & 2016-Q15
2016 PM38NEODyS1721 Aug. 23R E M O V E D
JPL Sentry1530 Aug. 13R E M O V E DRisk listing removed at 1500 UTC 13 Aug.
Assessment postings were noted by A/CC on 11 Aug., 13 Aug., 14 Aug. & 23 Aug.   -   References: MPEC 2016-P91 plus DOU 2016-P110
2016 PTNEODyS1518 Aug. 11R E M O V E D
JPL Sentry1518 Aug. 11R E M O V E DRisk listing removed at 1500 UTC 11 Aug.
Assessment postings were noted by A/CC on 5 Aug., 6 Aug., 8 Aug., 9 Aug., 10 Aug. & 11 Aug.   -   References: MPEC 2016-P28 plus DOUs 2016-P33, 2016-P47, 2016-P58, 2016-P76, 2016-P86 & 2016-Q14
2016 OK1JPL Sentry1600 Aug. 8R E M O V E DRisk listing removed at 1500 UTC 8 Aug.
NEODyS1600 Aug. 8R E M O V E D
Assessment postings were noted by A/CC on 3 Aug., 4 Aug., 5 Aug. & 8 Aug.   -   References: MPEC 2016-P09 plus DOUs 2016-P33, 2016-P58, 2016-P65, 2016-P121, 2016-Q06 & 2016-Q14
2016 OJ1NEODyS2358 Aug. 14R E M O V E D
JPL Sentry1650 Aug. 9R E M O V E DRisk listing removed at 1458 UTC 9 Aug.
Assessment postings were noted by A/CC on 8 Aug., 9 Aug. & 14 Aug.   -   References: MPEC 2016-P04 plus DOUs 2016-P52, 2016-P58, 2016-P65, 2016-P121, 2016-P131 & 2016-Q01
2016 OVNEODyS1933 Aug. 4R E M O V E D
JPL Sentry1614 Aug. 2R E M O V E DRisk listing removed at 1548 UTC 2 Aug.
Assessment postings were noted by A/CC on 30 July, 31 July, 2 Aug. & 4 Aug.   -   References: MPEC 2016-O410 plus DOUs 2016-P02, 2016-P08, 2016-P19, 2016-P33 & 2016-P47
2016 NA39JPL Sentry2212 July 27R E M O V E DRisk listing removed at 1705 UTC 27 July
An assessment posting was noted by A/CC on 27 July   -   References: DOUs 2016-P01 & 2016-P33
2015 KENEODyS2205 July 30R E M O V E D
JPL Sentry2212 July 27R E M O V E DRisk listing removed at 1906 UTC 27 July
Assessment postings were noted by A/CC on 27 July, 28 July & 30 July   -   References: MPEC 2016-O403 plus DOUs 2016-O406, 2016-O409, 2016-P02, 2016-P19, 2016-Q15 & 2016-Q17
2010 EN44JPL Sentry2212 July 27R E M O V E DRisk listing removed at 1703 UTC 27 July
An assessment posting was noted by A/CC on 27 July   -   References: no recent MPECs

Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale (next 100 years)

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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