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 QF3	JPL Sentry	0342 Aug. 22	2043-2101	32	3.31730583e-05	-5.77	-6.15	0	Computed 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.
2017 QF3	An assessment posting was noted by A/CC on 22 Aug. - References: MPEC 2017-Q89

2017 QD3	JPL Sentry	0342 Aug. 22	2114-2114	2	7.387e-10	-8.34	-8.42	0	Computed 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.
2017 QD3	An assessment posting was noted by A/CC on 22 Aug. - References: MPEC 2017-Q84

2017 QT1	NEODyS	1550 Aug. 20	2050-2117	14	6.54e-07	-6.67	-6.81	0	Based on 24 optical observations (of which 1 are rejected as outliers) from 2017-08-15.414 to 2017-08-19.990.
	JPL Sentry	0401 Aug. 20	2050-2069	3	3.1404e-07	-6.98	-7.06	0	Computed 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 PY26	NEODyS	1704 Aug. 20	2092-2117	17	1.82e-06	-4.54	-5.09	0	Based on 53 optical observations (of which 1 are rejected as outliers) from 2017-08-15.368 to 2017-08-19.884.
	JPL Sentry	1550 Aug. 20	2108-2117	6	1.23872e-06	-4.71	-5.30	0	Computed 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 PV26	NEODyS	1704 Aug. 20	2048	1	1.42e-05	-2.83	-2.83	0	Based on 19 optical observations (of which 3 are rejected as outliers) from 2017-08-05.568 to 2017-08-20.181.
	JPL Sentry	1550 Aug. 20	2048-2048	1	7.262e-06	-3.11	-3.11	0	Computed 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 PL26	NEODyS	0111 Aug. 22	2089-2116	55	2.48e-05	-3.61	-4.22	0	Based on 112 optical observations (of which 5 are rejected as outliers) from 2017-08-13.402 to 2017-08-21.003.
	JPL Sentry	1530 Aug. 21	2081-2116	45	2.25060879e-05	-3.64	-4.40	0	Computed 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 OE7	NEODyS	1942 Aug. 11	2114	1	1.52e-06	-6.80	-6.8	0	Based on 53 optical observations (of which 9 are rejected as outliers) from 2017-07-24.486 to 2017-08-04.611.
	JPL Sentry	1609 Aug. 11	2114-2114	1	2.896e-05	-5.66	-5.66	0	Computed 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 OO1	NEODyS	1800 Aug. 9	2115	1	6.27e-08	-7.31	-7.31	0	Based on 98 optical observations (of which 0 are rejected as outliers) from 2017-07-22.665 to 2017-07-31.269.
	JPL Sentry	1530 Aug. 9	2115-2115	1	2.424e-07	-6.73	-6.73	0	Computed 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 OM1	NEODyS	1506 Aug. 2	2084-2117	12	1.36e-06	-5.16	-5.52	0	Based on 136 optical observations (of which 4 are rejected as outliers) from 2017-07-22.508 to 2017-07-25.100.
	JPL Sentry	1530 Aug. 1	2084-2113	5	2.1156158e-06	-4.95	-5.21	0	Computed 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 MB1	JPL Sentry	1500 July 29	2098-2098	2	1.94155e-07	-3.65	-3.66	0	Computed 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.
	NEODyS	1530 July 28	2098	1	4.14e-08	-4.32	-4.32	0	Based 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 FB1	JPL Sentry	1730 July 31	2098-2106	3	4.1073e-07	-5.55	-5.81	0	Computed 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.
	NEODyS	1441 July 30	2092-2106	5	8.24e-07	-5.25	-5.43	0	Based 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 WJ1	NEODyS	1942 Aug. 11	2104-2115	8	6.94e-07	-4.58	-5.26	0	Based on 390 optical observations (of which 3 are rejected as outliers) from 2003-07-04.606 to 2017-07-31.349.
2016 WJ1	An assessment posting was noted by A/CC on 11 Aug. - References: DOU 2017-P41

2016 TB57	NEODyS	1430 Aug. 11	2096-2116	7	9.8e-09	-9.03	-9.2	0	Based on 142 optical observations (of which 2 are rejected as outliers) from 2016-09-12.527 to 2017-04-01.366.
2016 TB57	An assessment posting was noted by A/CC on 11 Aug. - References: DOU 2017-P36

2015 XO129	NEODyS	1430 Aug. 11	2080-2112	2	1.04e-08	-8.25	-8.4	0	Based on 27 optical observations (of which 0 are rejected as outliers) from 2015-11-19.037 to 2015-12-11.043.
2015 XO129	An assessment posting was noted by A/CC on 11 Aug. - References: DOU 2017-P36

2015 ME131	JPL Sentry	0401 Aug. 20	2018-2089	100	3.52113e-08	-3.63	-4.13	0	Computed 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.
2015 ME131	An assessment posting was noted by A/CC on 20 Aug. - References: no recent MPECs

2015 DA54	JPL Sentry	1634 Aug. 10	2107-2107	1	2.625e-08	-5.52	-5.52	0	Computed 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.
2015 DA54	An assessment posting was noted by A/CC on 10 Aug. - References: DOU 2017-P36

2014 MO68	JPL Sentry	1849 Aug. 7	2020-2116	203	7.484516e-07	-5.40	-6.47	0	Computed 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.
2014 MO68	An assessment posting was noted by A/CC on 7 Aug. - References: no recent MPECs

2012 TC4	JPL Sentry	2358 Aug. 10	2050-2089	11	0.001622361631	-3.66	-3.72	0	Computed 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.
	NEODyS	0329 Aug. 7	2050-2116	49	4.8e-04	-4.30	-4.5	0	Based 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 OP19	NEODyS	1942 Aug. 11	R E M O V E D
	JPL Sentry	1609 Aug. 11	R E M O V E D						Risk 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 NR6	NEODyS	1350 July 27	R E M O V E D
	JPL Sentry	1907 July 24	R E M O V E D						Risk 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 BP14	JPL Sentry	1634 Aug. 10	R E M O V E D						Risk listing removed at 1610 UTC Aug. 10th.
2016 BP14	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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