A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted in the Last 31 Days

Compiled at 1601 UTC on 22 June 2018

[ 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

2018 MW6	JPL Sentry	1600 June 22	2038-2049	2	4.4242e-09	-5.41	-5.47	0	Computed at 08:24 June 22nd Pacific time based on 39 observations spanning 2.9878 days (2018-Jun-19.26519 to 2018-Jun-22.25296). Diameter approximately 0.389 km. from weighted mean H=19.70.
2018 MW6	An assessment posting was noted by A/CC on 22 June - References: MPEC 2018-M81

2018 MC5	JPL Sentry	1600 June 22	2073-2113	7	3.3928299e-06	-5.91	-6.40	0	Computed at 07:47 June 22nd Pacific time based on 30 observations spanning 9.8856 days (2018-Jun-12.475331 to 2018-Jun-22.36093). Diameter approximately 0.031 km. from weighted mean H=25.20.
	NEODyS	1500 June 21	2045-2116	24	1.88e-05	-5.18	-5.66	0	Based on 21 optical observations (of which 0 are rejected as outliers) from 2018-06-12.476 to 2018-06-19.553.
	Assessment postings were noted by A/CC on 20 June, 21 June & 22 June - References: MPEC 2018-M53 plus DOUs 2018-M75 & 2018-M78

2018 MX4	NEODyS	1500 June 21	2103-2117	2	2.07e-09	-9.95	-10.12	0	Based on 16 optical observations (of which 0 are rejected as outliers) from 2018-06-17.314 to 2018-06-19.317.
2018 MX4	An assessment posting was noted by A/CC on 21 June - References: MPEC 2018-M48 plus DOU 2018-M75

2018 LZ13	NEODyS	1500 June 21	2057-2092	6	1.77e-07	-4.06	-4.29	0	Based on 21 optical observations (of which 0 are rejected as outliers) from 2018-06-15.526 to 2018-06-19.397.
	JPL Sentry	1500 June 19	2057-2116	13	3.41797e-07	-3.75	-4.03	0	Computed at 07:41 June 19th Pacific time based on 21 observations spanning 3.8711 days (2018-Jun-15.52506 to 2018-Jun-19.39612). Diameter approximately 0.270 km. from weighted mean H=20.49.
	Assessment postings were noted by A/CC on 18 June, 19 June & 21 June - References: MPEC 2018-M36 plus DOU 2018-M39

2018 LT5	NEODyS	1500 June 21	2025-2083	6	3.83e-08	-6.98	-7.46	0	Based on 12 optical observations (of which 0 are rejected as outliers) from 2018-06-14.396 to 2018-06-19.044.
	JPL Sentry	1500 June 19	2025-2083	5	1.270891e-07	-6.76	-6.87	0	Computed at 07:39 June 19th Pacific time based on 12 observations spanning 4.6471 days (2018-Jun-14.39564 to 2018-Jun-19.04275). Diameter approximately 0.034 km. from weighted mean H=24.99.
	Assessment postings were noted by A/CC on 17 June, 19 June & 21 June - References: MPEC 2018-M18 plus DOU 2018-M39

2018 LV3	NEODyS	1500 June 15	2061	1	1.34e-07	-7.53	-7.53	0	Based on 29 optical observations (of which 0 are rejected as outliers) from 2018-06-11.383 to 2018-06-14.182.
2018 LV3	An assessment posting was noted by A/CC on 15 June - References: MPEC 2018-L59 plus DOUs 2018-L67 & 2018-L73

2018 LR3	JPL Sentry	1600 June 22	2077-2117	6	9.708888e-06	-5.90	-5.99	0	Computed at 07:34 June 22nd Pacific time based on 45 observations spanning 11.844 days (2018-Jun-10.32538 to 2018-Jun-22.16952). Diameter approximately 0.019 km. from weighted mean H=26.22.
	NEODyS	1500 June 21	2077-2118	13	2.1e-06	-6.66	-6.81	n/a	Based on 41 optical observations (of which 0 are rejected as outliers) from 2018-06-10.326 to 2018-06-20.215.
	Assessment postings were noted by A/CC on 12 June, 13 June, 14 June, 15 June, 17 June, 18 June, 19 June, 20 June, 21 June & 22 June - References: MPEC 2018-L62 plus DOUs 2018-L67, 2018-L73, 2018-M02, 2018-M27, 2018-M39, 2018-M63 & 2018-M78

2018 LE1	JPL Sentry	1600 June 22	2102-2102	1	1.988e-07	-8.40	-8.40	0	Computed at 07:33 June 22nd Pacific time based on 51 observations spanning 15.991 days (2018-Jun-05.39422 to 2018-Jun-21.385419). Diameter approximately 0.010 km. from weighted mean H=27.70.
	NEODyS	1804 June 16	2066-2112	9	2.33e-06	-7.34	-7.35	0	Based on 50 optical observations (of which 1 are rejected as outliers) from 2018-06-05.395 to 2018-06-14.468.
	Assessment postings were noted by A/CC on 7 June, 8 June, 9 June, 10 June, 11 June, 12 June, 13 June, 15 June, 16 June & 22 June - References: MPEC 2018-L24 plus DOUs 2018-L29, 2018-L39, 2018-L47, 2018-L52, 2018-L55, 2018-L67, 2018-L78, 2018-M01 & 2018-M78

2018 LD1	NEODyS	1500 June 15	2089	1	1.79e-08	-8.61	-8.61	0	Based on 46 optical observations (of which 0 are rejected as outliers) from 2018-06-05.341 to 2018-06-13.388.
	JPL Sentry	1504 June 13	R E M O V E D						Risk listing removed at 1420 UTC June 13th
	Assessment postings were noted by A/CC on 7 June, 8 June, 9 June, 10 June, 11 June, 12 June, 13 June & 15 June - References: MPEC 2018-L23 plus DOUs 2018-L29, 2018-L39, 2018-L47, 2018-L52, 2018-L55, 2018-L67 & 2018-L73

2018 LM	NEODyS	1500 June 21	2116	1	1.31e-07	-7.49	-7.49	0	Based on 88 optical observations (of which 0 are rejected as outliers) from 2018-06-04.255 to 2018-06-19.023.
	JPL Sentry	1500 June 19	2111-2112	2	3.0288e-07	-7.09	-7.15	0	Computed at 07:25 June 19th Pacific time based on 88 observations spanning 14.768 days (2018-Jun-04.25437 to 2018-Jun-19.02212). Diameter approximately 0.031 km. from weighted mean H=25.21.
	Assessment postings were noted by A/CC on 6 June, 7 June, 8 June, 9 June, 10 June, 11 June, 12 June, 13 June, 14 June, 15 June, 16 June, 17 June, 19 June & 21 June - References: MPEC 2018-L15 plus DOUs 2018-L20, 2018-L29, 2018-L39, 2018-L47, 2018-L52, 2018-L55, 2018-L73, 2018-L78, 2018-M02 & 2018-M39

2018 LB	NEODyS	1555 June 5	2075-2118	17	5.65e-06	-6.04	-6.5	-	Based on 33 optical observations (of which 0 are rejected as outliers) from 2018-06-01.169 to 2018-06-02.148.
	JPL Sentry	0307 June 4	2092-2116	11	3.61698e-06	-6.29	-6.81	0	Computed at 19:49 June 3rd Pacific time based on 33 observations spanning .97953 days (2018-Jun-01.16813 to 2018-Jun-02.147665). Diameter approximately 0.022 km. from weighted mean H=25.99.
	Assessment postings were noted by A/CC on 4 June & 5 June - References: MPEC 2018-L05

2018 KY2	JPL Sentry	1555 May 30	R E M O V E D						Risk listing removed at 1358 UTC May 30th
	NEODyS	0408 May 28	2075-2115	2	9.54e-08	-7.98	-8.23	0	Based on 18 optical observations (of which 2 are rejected as outliers) from 2018-05-21.291 to 2018-05-25.896.
	Assessment postings were noted by A/CC on 27 May, 28 May & 30 May - References: MPEC 2018-K96 plus DOU 2018-K105

2018 JG1	NEODyS	1500 June 21	2118	2	7.36e-09	-8.29	-8.33	n/a	Based on 83 optical observations (of which 0 are rejected as outliers) from 2018-05-08.180 to 2018-06-19.334.
	JPL Sentry	1551 June 14	R E M O V E D						Risk listing removed at 1416 UTC June 14th
	Assessment postings were noted by A/CC on 13 June, 14 June, 15 June & 21 June - References: DOUs 2018-L67, 2018-L73 & 2018-M63

2018 JN	NEODyS	0408 May 28	2100-2112	3	3.0e-06	-5.92	-5.93	0	Based on 146 optical observations (of which 1 are rejected as outliers) from 2018-05-05.424 to 2018-05-27.457.
	JPL Sentry	1641 May 27	2100-2112	2	1.6534e-06	-6.19	-6.47	0	Computed at 07:03 May 27th Pacific time based on 146 observations spanning 22.033 days (2018-May-05.42349 to 2018-May-27.45623). Diameter approximately 0.033 km. from weighted mean H=25.08.
	Assessment postings were noted by A/CC on 23 May, 24 May, 25 May, 26 May, 27 May & 28 May - References: DOUs 2018-K71, 2018-K77, 2018-K86 & 2018-K97

2018 HJ2	NEODyS	1500 June 15	2085-2114	3	5.46e-06	-5.37	-5.52	0	Based on 106 optical observations (of which 0 are rejected as outliers) from 2018-04-23.412 to 2018-05-23.461.
	JPL Sentry	1504 June 13	2085-2085	1	2.425e-08	-7.65	-7.65	0	Computed at 07:07 June 13th Pacific time based on 106 observations spanning 30.049 days (2018-Apr-23.41101 to 2018-May-23.46042). Diameter approximately 0.041 km. from weighted mean H=24.58.
	Assessment postings were noted by A/CC on 23 May, 24 May, 25 May, 13 June & 15 June - References: DOUs 2018-K71, 2018-K77 & 2018-L67

2018 GL2	NEODyS	1508 May 23	2060-2112	7	7.63e-08	-6.73	-6.99	0	Based on 71 optical observations (of which 0 are rejected as outliers) from 2018-04-11.236 to 2018-05-16.326.
	JPL Sentry	1532 May 22	R E M O V E D						Risk listing removed at 1420 UTC May 22nd
	Assessment postings were noted by A/CC on 22 May & 23 May - References: DOU 2018-K63

2018 GE2	NEODyS	1508 May 23	2054-2117	229	7.59e-05	-5.39	-5.99	0	Based on 105 optical observations (of which 4 are rejected as outliers) from 2018-04-10.411 to 2018-05-16.437.
	JPL Sentry	1639 May 22	2060-2117	43	7.511643e-05	-5.42	-5.99	0	Computed at 09:14 May 22nd Pacific time based on 104 observations spanning 36.027 days (2018-Apr-10.40973 to 2018-May-16.436634). Diameter approximately 0.013 km. from weighted mean H=27.02.
	Assessment postings were noted by A/CC on 22 May & 23 May - References: DOU 2018-K63

2017 KB3	NEODyS	1530 June 12	2084-2117	13	1.08e-07	-7.32	-7.79	0	Based on 46 optical observations (of which 0 are rejected as outliers) from 2017-05-17.219 to 2017-05-30.379.
	JPL Sentry	1535 June 11	2100-2117	4	3.66747e-08	-7.78	-7.84	0	Computed at 07:07 June 11th Pacific time based on 46 observations spanning 13.160 days (2017-May-17.21791 to 2017-May-30.378137). Diameter approximately 0.033 km. from weighted mean H=25.07.
	Assessment postings were noted by A/CC on 10 June, 11 June & 12 June - References: DOUs 2018-L47 & 2018-L52

2014 UX34	JPL Sentry	1500 June 21	2084-2084	1	1.216e-08	-6.37	-6.37	0	Computed at 07:06 June 21st Pacific time based on 59 observations spanning 36.925 days (2014-Oct-23.33075 to 2014-Nov-29.25596). Diameter approximately 0.120 km. from weighted mean H=22.33.
2014 UX34	An assessment posting was noted by A/CC on 21 June - References: DOU 2018-M75

2014 LY21	JPL Sentry	1804 June 5	2019-2116	976	8.85019570999999e-05	-5.16	-5.66	0	Computed at 18:09 April 8th of 2017 Pacific time based on 11 observations spanning .04506 days (2014-Jun-02.41612 to 2014-Jun-02.46118). Diameter approximately 0.005 km. from weighted mean H=29.22.
2014 LY21	Assessment postings were noted by A/CC on 4 June & 5 June - References: no recent MPECs
C L E A R E D
2018 MR5	NEODyS	1600 June 22	R E M O V E D
	JPL Sentry	1500 June 21	R E M O V E D						Risk listing removed at 1438 UTC June 21st
	Assessment postings were noted by A/CC on 20 June, 21 June & 22 June - References: MPEC 2018-M66 plus DOUs 2018-M75 & 2018-M78

2018 LS5	JPL Sentry	1600 June 22	R E M O V E D						Risk listing removed at 1443 UTC June 22nd
2018 LS5	Assessment postings were noted by A/CC on 21 June & 22 June - References: MPEC 2018-M17 plus DOUs 2018-M75 & 2018-M78

2018 LM4	NEODyS	1534 June 18	R E M O V E D
	JPL Sentry	1500 June 18	R E M O V E D						Risk listing removed at 1402 UTC June 18th
	Assessment postings were noted by A/CC on 14 June, 15 June & 18 June - References: MPEC 2018-L75 plus DOUs 2018-M27 & 2018-M63

2018 LR2	NEODyS	1500 June 15	R E M O V E D
2018 LR2	Assessment postings were noted by A/CC on 12 June & 15 June - References: MPEC 2018-L42 plus DOUs 2018-L52, 2018-L55, 2018-L73, 2018-M02 & 2018-M27

2018 LK2	JPL Sentry	1438 June 20	R E M O V E D						Risk listing removed at 1406 UTC June 20th
2018 LK2	Assessment postings were noted by A/CC on 8 June & 20 June - References: MPEC 2018-L30 plus DOU 2018-M63

2018 LB1	NEODyS	1609 June 15	R E M O V E D
	JPL Sentry	1551 June 14	R E M O V E D						Risk listing removed at 1414 UTC June 14th
	Assessment postings were noted by A/CC on 8 June, 10 June, 11 June, 12 June, 13 June, 14 June & 15 June - References: MPEC 2018-L21 plus DOUs 2018-L29, 2018-L39, 2018-L47, 2018-L52, 2018-L55, 2018-L67, 2018-L73, 2018-L78 & 2018-M63

2018 LA	NEODyS	1500 June 7	R E M O V E D
2018 LA	Assessment postings were noted by A/CC on 4 June, 5 June & 7 June - References: MPEC 2018-L04

2018 KF1	JPL Sentry	1608 May 25	R E M O V E D						Risk listing removed at 1417 UTC May 25th
	NEODyS	1601 May 22	R E M O V E D
	Assessment postings were noted by A/CC on 22 May, 23 May & 25 May - References: DOUs 2018-K63, 2018-K71, 2018-K86 & 2018-K91

2018 KB1	NEODyS	1532 May 22	R E M O V E D
2018 KB1	An assessment posting was noted by A/CC on 22 May - References: DOUs 2018-K63, 2018-K71, 2018-K77, 2018-K97, 2018-K104, 2018-L02, 2018-L03, 2018-L29, 2018-L39, 2018-L47 & 2018-M63

2018 JD5	NEODyS	1508 May 23	R E M O V E D
	JPL Sentry	1532 May 22	R E M O V E D						Risk listing removed at 1434 UTC May 22nd
	Assessment postings were noted by A/CC on 22 May & 23 May - References: DOUs 2018-K63, 2018-K71, 2018-K77, 2018-K86, 2018-K91, 2018-K97, 2018-L02, 2018-L03, 2018-L12, 2018-L47, 2018-M63 & 2018-M78

2018 JC2	NEODyS	2358 May 26	R E M O V E D
	JPL Sentry	1600 May 26	R E M O V E D						Risk listing removed at 1359 UTC May 26th
	Assessment postings were noted by A/CC on 23 May, 24 May, 25 May & 26 May - References: DOUs 2018-K71, 2018-K77, 2018-K86, 2018-K91 & 2018-L67

2017 TA6	NEODyS	1601 June 3	R E M O V E D
	JPL Sentry	1600 June 2	R E M O V E D						Risk listing removed at 1407 UTC June 2nd
	Assessment postings were noted by A/CC on 2 June & 3 June - References: DOU 2018-L02

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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