A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted in the Last 31 Days

Compiled at 0344 UTC on 22 August 2017

[ 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 NASA/JPL Sentry and NEODyS CLOMON2.
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
2017 QF3JPL Sentry0342 Aug. 222043-2101323.31730583e-05-5.77-6.150Computed at 20:05 Aug. 21st Pacific time based on 20 observations spanning 3.5483 days (2017-Aug-17.3729 to 2017-Aug-20.9212). Diameter approximately 0.008 km. from weighted mean H=28.05.
An assessment posting was noted by A/CC on 22 Aug.   -   References: MPEC 2017-Q89
2017 QD3JPL Sentry0342 Aug. 222114-211427.387e-10-8.34-8.420Computed at 20:01 Aug. 21st Pacific time based on 14 observations spanning 1.9430 days (2017-Aug-19.2725 to 2017-Aug-21.21554). Diameter approximately 0.100 km. from weighted mean H=22.59.
An assessment posting was noted by A/CC on 22 Aug.   -   References: MPEC 2017-Q84
2017 QT1NEODyS1550 Aug. 202050-2117146.54e-07-6.67-6.810Based on 24 optical observations (of which 1 are rejected as outliers) from 2017-08-15.414 to 2017-08-19.990.
JPL Sentry0401 Aug. 202050-206933.1404e-07-6.98-7.060Computed at 20:49 Aug. 19th Pacific time based on 22 observations spanning 4.5761 days (2017-Aug-15.41271 to 2017-Aug-19.98885). Diameter approximately 0.015 km. from weighted mean H=26.81.
Assessment postings were noted by A/CC on 20 Aug.   -   References: MPEC 2017-Q55
2017 PY26NEODyS1704 Aug. 202092-2117171.82e-06-4.54-5.090Based on 53 optical observations (of which 1 are rejected as outliers) from 2017-08-15.368 to 2017-08-19.884.
JPL Sentry1550 Aug. 202108-211761.23872e-06-4.71-5.300Computed at 07:58 Aug. 20th Pacific time based on 53 observations spanning 4.5158 days (2017-Aug-15.36698 to 2017-Aug-19.882741). Diameter approximately 0.110 km. from weighted mean H=22.42.
Assessment postings were noted by A/CC on 19 Aug. & 20 Aug.   -   References: MPEC 2017-Q43 plus DOU 2017-Q61
2017 PV26NEODyS1704 Aug. 20204811.42e-05-2.83-2.830Based on 19 optical observations (of which 3 are rejected as outliers) from 2017-08-05.568 to 2017-08-20.181.
JPL Sentry1550 Aug. 202048-204817.262e-06-3.11-3.110Computed at 07:48 Aug. 20th Pacific time based on 17 observations spanning 14.613 days (2017-Aug-05.56722 to 2017-Aug-20.180109). Diameter approximately 0.190 km. from weighted mean H=21.24.
Assessment postings were noted by A/CC on 18 Aug., 19 Aug. & 20 Aug.   -   References: MPEC 2017-Q28 plus DOUs 2017-Q46 & 2017-Q61
2017 PL26NEODyS0111 Aug. 222089-2116552.48e-05-3.61-4.220Based on 112 optical observations (of which 5 are rejected as outliers) from 2017-08-13.402 to 2017-08-21.003.
JPL Sentry1530 Aug. 212081-2116452.25060879e-05-3.64-4.400Computed at 08:02 Aug. 21st Pacific time based on 110 observations spanning 7.6017 days (2017-Aug-13.40074 to 2017-Aug-21.00247). Diameter approximately 0.120 km. from weighted mean H=22.20.
Assessment postings were noted by A/CC on 17 Aug., 18 Aug., 19 Aug., 20 Aug., 21 Aug. & 22 Aug.   -   References: MPEC 2017-Q17 plus DOUs 2017-Q25, 2017-Q46, 2017-Q61 & 2017-Q79
2017 OE7NEODyS1942 Aug. 11211411.52e-06-6.80-6.80Based on 53 optical observations (of which 9 are rejected as outliers) from 2017-07-24.486 to 2017-08-04.611.
JPL Sentry1609 Aug. 112114-211412.896e-05-5.66-5.660Computed at 07:58 Aug. 11th Pacific time based on 52 observations spanning 11.125 days (2017-Jul-24.48536 to 2017-Aug-04.610565). Diameter approximately 0.019 km. from weighted mean H=26.28.
Assessment postings were noted by A/CC on 28 July, 30 July, 31 July, 4 Aug., 10 Aug. & 11 Aug.   -   References: MPEC 2017-O59 plus DOUs 2017-O62, 2017-O72, 2017-O83, 2017-P12, 2017-P36 & 2017-P41
2017 OO1NEODyS1800 Aug. 9211516.27e-08-7.31-7.310Based on 98 optical observations (of which 0 are rejected as outliers) from 2017-07-22.665 to 2017-07-31.269.
JPL Sentry1530 Aug. 92115-211512.424e-07-6.73-6.730Computed at 08:03 Aug. 9th Pacific time based on 98 observations spanning 8.6032 days (2017-Jul-22.66455 to 2017-Jul-31.2677). Diameter approximately 0.042 km. from weighted mean H=24.51.
Assessment postings were noted by A/CC on 25 July, 26 July, 27 July, 28 July, 31 July, 2 Aug. & 9 Aug.   -   References: MPEC 2017-O52 plus DOUs 2017-O54, 2017-O55, 2017-O83, 2017-P08 & 2017-P35
2017 OM1NEODyS1506 Aug. 22084-2117121.36e-06-5.16-5.520Based on 136 optical observations (of which 4 are rejected as outliers) from 2017-07-22.508 to 2017-07-25.100.
JPL Sentry1530 Aug. 12084-211352.1156158e-06-4.95-5.210Computed at 08:10 Aug. 1st Pacific time based on 135 observations spanning 2.5921 days (2017-Jul-22.50692 to 2017-Jul-25.098999). Diameter approximately 0.073 km. from weighted mean H=23.33.
Assessment postings were noted by A/CC on 24 July, 25 July, 26 July, 27 July, 28 July, 1 Aug. & 2 Aug.   -   References: MPEC 2017-O47 plus DOUs 2017-O50, 2017-O54, 2017-O55 & 2017-P01
2017 MB1JPL Sentry1500 July 292098-209821.94155e-07-3.65-3.660Computed at 07:57 July 29th Pacific time based on 427 observations spanning 35.795 days (2017-Jun-19.31418 to 2017-Jul-25.109676). Diameter approximately 0.590 km. from weighted mean H=18.81.
NEODyS1530 July 28209814.14e-08-4.32-4.320Based on 422 optical observations (of which 13 are rejected as outliers) from 2017-06-19.315 to 2017-07-25.110.
Assessment postings were noted by A/CC on 22 July, 23 July, 25 July, 28 July & 29 July   -   References: DOUs 2017-O30, 2017-O42, 2017-O50, 2017-O62 & 2017-O64
2017 FB1JPL Sentry1730 July 312098-210634.1073e-07-5.55-5.810Computed at 09:52 July 31st Pacific time based on 48 observations spanning 36.957 days (2017-Mar-18.20739 to 2017-Apr-24.163996). Diameter approximately 0.071 km. from weighted mean H=23.39.
NEODyS1441 July 302092-210658.24e-07-5.25-5.430Based on 48 optical observations (of which 0 are rejected as outliers) from 2017-03-18.208 to 2017-04-24.165.
Assessment postings were noted by A/CC on 29 July, 30 July & 31 July   -   References: DOU 2017-O64
2016 WJ1NEODyS1942 Aug. 112104-211586.94e-07-4.58-5.260Based on 390 optical observations (of which 3 are rejected as outliers) from 2003-07-04.606 to 2017-07-31.349.
An assessment posting was noted by A/CC on 11 Aug.   -   References: DOU 2017-P41
2016 TB57NEODyS1430 Aug. 112096-211679.8e-09-9.03-9.20Based on 142 optical observations (of which 2 are rejected as outliers) from 2016-09-12.527 to 2017-04-01.366.
An assessment posting was noted by A/CC on 11 Aug.   -   References: DOU 2017-P36
2015 XO129NEODyS1430 Aug. 112080-211221.04e-08-8.25-8.40Based on 27 optical observations (of which 0 are rejected as outliers) from 2015-11-19.037 to 2015-12-11.043.
An assessment posting was noted by A/CC on 11 Aug.   -   References: DOU 2017-P36
2015 ME131JPL Sentry0401 Aug. 202018-20891003.52113e-08-3.63-4.130Computed at 11:21 April 8th Pacific time based on 6 observations spanning 1.8406 days (2015-Jun-23.58462 to 2015-Jun-25.42522). Diameter approximately 0.499 km. from weighted mean H=19.16.
An assessment posting was noted by A/CC on 20 Aug.   -   References: no recent MPECs
2015 DA54JPL Sentry1634 Aug. 102107-210712.625e-08-5.52-5.520Computed at 09:20 Aug. 10th Pacific time based on 56 observations spanning 63.211 days (2015-Jan-22.06866 to 2015-Mar-26.279769). Diameter approximately 0.230 km. from weighted mean H=20.83.
An assessment posting was noted by A/CC on 10 Aug.   -   References: DOU 2017-P36
2014 MO68JPL Sentry1849 Aug. 72020-21162037.484516e-07-5.40-6.470Computed at 15:55 April 6th Pacific time based on 6 observations spanning .98038 days (2014-Jun-30.47333 to 2014-Jul-01.453713). Diameter approximately 0.066 km. from weighted mean H=23.56.
An assessment posting was noted by A/CC on 7 Aug.   -   References: no recent MPECs
2012 TC4JPL Sentry2358 Aug. 102050-2089110.001622361631-3.66-3.720Computed at 11:13 Aug. 10th Pacific time based on 228 observations spanning 1765.9 days (2012-Oct-04.467661 to 2017-Aug-05.39707). Diameter approximately 0.015 km. from weighted mean H=26.74.
NEODyS0329 Aug. 72050-2116494.8e-04-4.30-4.50Based on 256 optical observations (of which 0 are rejected as outliers) from 2012-10-04.468 to 2017-08-05.398.
Assessment postings were noted by A/CC on 25 July, 7 Aug. & 10 Aug.   -   References: MPEC 2017-P26 plus DOU 2017-O44
C   L   E   A   R   E   D
2017 OP19NEODyS1942 Aug. 11R E M O V E D
JPL Sentry1609 Aug. 11R E M O V E DRisk listing removed at 1448 UTC Aug. 11th.
Assessment postings were noted by A/CC on 31 July & 11 Aug.   -   References: MPEC 2017-O80 plus DOUs 2017-P41 & 2017-Q25
2017 NR6NEODyS1350 July 27R E M O V E D
JPL Sentry1907 July 24R E M O V E DRisk listing removed at 1501 UTC July 24th.
Assessment postings were noted by A/CC on 22 July, 24 July & 27 July   -   References: DOUs 2017-O30, 2017-O44, 2017-O54, 2017-O55 & 2017-Q10
2016 BP14JPL Sentry1634 Aug. 10R E M O V E DRisk listing removed at 1610 UTC Aug. 10th.
An assessment posting was noted by A/CC on 10 Aug.   -   References: DOU 2017-P36

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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