A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted in the Last 31 Days

Compiled at 2359 UTC on 24 April 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 HW1	JPL Sentry	2358 April 24	2104-2118	6	9.27193e-05	-5.06	-5.17	0	Computed at 16:37 April 24th Pacific time based on 15 observations spanning 1.2679 days (2018-Apr-23.20248 to 2018-Apr-24.47037). Diameter approximately 0.020 km. from weighted mean H=26.14.
2018 HW1	An assessment posting was noted by A/CC on 24 April - References: MPEC 2018-H82

2018 GR4	JPL Sentry	1545 April 24	2048-2100	45	0.00027512847	-4.74	-5.07	0	Computed at 08:21 April 24th Pacific time based on 57 observations spanning 11.849 days (2018-Apr-12.31705 to 2018-Apr-24.16576). Diameter approximately 0.013 km. from weighted mean H=27.04.
	NEODyS	1545 April 24	2048-2118	171	1.27e-04	-5.05	-5.27	-	Based on 54 optical observations (of which 1 are rejected as outliers) from 2018-04-12.318 to 2018-04-23.155.
	Assessment postings were noted by A/CC on 15 April, 17 April, 18 April, 19 April, 20 April, 21 April, 22 April, 23 April & 24 April - References: MPEC 2018-G120 plus DOUs 2018-H29, 2018-H41, 2018-H42, 2018-H56, 2018-H63, 2018-H69 & 2018-H71

2018 GG4	NEODyS	0643 April 22	2058-2070	2	1.85e-07	-7.14	-7.39	0	Based on 36 optical observations (of which 2 are rejected as outliers) from 2018-04-13.438 to 2018-04-21.365.
	JPL Sentry	1634 April 21	2058-2070	2	2.6775e-07	-6.96	-7.10	0	Computed at 07:52 April 21st Pacific time based on 32 observations spanning 7.9266 days (2018-Apr-13.43759 to 2018-Apr-21.36421). Diameter approximately 0.019 km. from weighted mean H=26.24.
	Assessment postings were noted by A/CC on 15 April, 17 April, 19 April, 20 April, 21 April & 22 April - References: MPEC 2018-G110 plus DOUs 2018-H41, 2018-H42 & 2018-H56

2018 GL2	NEODyS	2142 April 24	2060-2113	11	4.82e-06	-4.99	-5.09	0	Based on 66 optical observations (of which 0 are rejected as outliers) from 2018-04-11.236 to 2018-04-23.381.
	JPL Sentry	1545 April 24	2050-2093	5	8.454344e-06	-4.75	-4.80	0	Computed at 08:18 April 24th Pacific time based on 66 observations spanning 12.145 days (2018-Apr-11.23475 to 2018-Apr-23.37981). Diameter approximately 0.049 km. from weighted mean H=24.21.
	Assessment postings were noted by A/CC on 13 April, 14 April, 15 April, 16 April, 17 April, 18 April, 19 April, 20 April, 21 April, 22 April, 23 April & 24 April - References: MPEC 2018-G80 plus DOUs 2018-G95, 2018-H02, 2018-H29, 2018-H41, 2018-H42, 2018-H56, 2018-H63 & 2018-H71

2018 GE2	JPL Sentry	1545 April 24	2060-2117	85	7.9716974e-05	-5.36	-5.93	0	Computed at 08:24 April 24th Pacific time based on 97 observations spanning 13.798 days (2018-Apr-10.40973 to 2018-Apr-24.20808). Diameter approximately 0.013 km. from weighted mean H=27.03.
	NEODyS	1545 April 24	2054-2118	250	6.55e-05	-5.44	-6.08	-	Based on 95 optical observations (of which 4 are rejected as outliers) from 2018-04-10.411 to 2018-04-23.181.
	Assessment postings were noted by A/CC on 13 April, 14 April, 15 April, 16 April, 18 April, 19 April, 20 April, 21 April, 22 April, 23 April & 24 April - References: MPEC 2018-G73 plus DOUs 2018-G91, 2018-G95, 2018-H02, 2018-H29, 2018-H41, 2018-H42, 2018-H56, 2018-H63, 2018-H69 & 2018-H71

2018 GD2	NEODyS	1555 April 13	2054-2117	25	2.03e-05	-7.22	-7.66	0	Based on 13 optical observations (of which 0 are rejected as outliers) from 2018-04-11.386 to 2018-04-12.459.
	JPL Sentry	2034 April 12	2096-2117	15	8.5834508e-06	-7.59	-8.23	0	Computed at 13:05 April 12th Pacific time based on 13 observations spanning 1.0735 days (2018-Apr-11.38514 to 2018-Apr-12.45864). Diameter approximately 0.004 km. from weighted mean H=29.45.
	Assessment postings were noted by A/CC on 12 April & 13 April - References: MPEC 2018-G72

2018 GN	NEODyS	1530 April 11	2109	1	3.12e-08	-8.08	-8.08	0	Based on 81 optical observations (of which 0 are rejected as outliers) from 2018-04-08.337 to 2018-04-09.296.
2018 GN	An assessment posting was noted by A/CC on 11 April - References: MPEC 2018-G35 plus DOUs 2018-G41 & 2018-G48

2018 GG	NEODyS	1600 April 14	2086-2095	6	1.97e-06	-5.64	-5.67	0	Based on 105 optical observations (of which 4 are rejected as outliers) from 2018-04-06.302 to 2018-04-11.349.
	JPL Sentry	1555 April 13	2086-2095	4	1.905352e-06	-5.66	-5.67	0	Computed at 07:32 April 13th Pacific time based on 104 observations spanning 5.0465 days (2018-Apr-06.30127 to 2018-Apr-11.347722). Diameter approximately 0.040 km. from weighted mean H=24.64.
	Assessment postings were noted by A/CC on 7 April, 8 April, 10 April, 11 April, 13 April & 14 April - References: MPEC 2018-G28 plus DOUs 2018-G41 & 2018-G74

2018 FL29	NEODyS	2257 April 15	2024-2118	506	2.68e-06	-7.94	-8.77	n/a	Based on 11 optical observations (of which 2 are rejected as outliers) from 2018-03-19.433 to 2018-03-20.302.
	JPL Sentry	1600 April 14	2026-2116	266	8.50503858000001e-05	-6.33	-6.72	0	Computed at 07:25 April 14th Pacific time based on 10 observations spanning .86860 days (2018-Mar-19.43246 to 2018-Mar-20.30106). Diameter approximately 0.003 km. from weighted mean H=30.07.
	Assessment postings were noted by A/CC on 14 April & 15 April - References: DOU 2018-G91

2018 FK5	NEODyS	1550 March 30	2033-2117	17	3.43e-06	-7.25	-7.52	0	Based on 33 optical observations (of which 0 are rejected as outliers) from 2018-03-28.223 to 2018-03-29.974.
	JPL Sentry	0437 March 30	2087-2110	2	3.72e-06	-7.24	-7.51	0	Computed at 18:39 March 29th Pacific time based on 33 observations spanning 1.7506 days (2018-Mar-28.22211 to 2018-Mar-29.97275). Diameter approximately 0.007 km. from weighted mean H=28.28.
	Assessment postings were noted by A/CC on 30 March - References: MPEC 2018-F153

2018 FE4	NEODyS	1600 April 14	2079-2118	15	1.17e-06	-5.83	-6.48	n/a	Based on 26 optical observations (of which 1 are rejected as outliers) from 2018-03-20.460 to 2018-03-27.382.
	JPL Sentry	1555 April 13	2085-2101	6	1.50548e-06	-5.64	-5.94	0	Computed at 07:28 April 13th Pacific time based on 31 observations spanning 10.126 days (2018-Mar-20.4591 to 2018-Mar-30.585238). Diameter approximately 0.038 km. from weighted mean H=24.73.
	Assessment postings were noted by A/CC on 25 March, 27 March, 28 March, 29 March, 30 March, 31 March, 13 April & 14 April - References: DOUs 2018-F134, 2018-F150, 2018-F159 & 2018-G74

2018 FA4	NEODyS	2257 April 15	2091	1	1.97e-09	-9.03	-9.03	0	Based on 34 optical observations (of which 0 are rejected as outliers) from 2018-03-18.365 to 2018-04-13.447.
	JPL Sentry	1635 April 15	R E M O V E D						Risk listing removed at 1435 UTC April 15th
	Assessment postings were noted by A/CC on 26 March, 28 March, 1 April & 15 April - References: DOUs 2018-F133, 2018-G01 & 2018-G95

2018 FE3	NEODyS	2257 April 15	2090-2118	3	5.84e-06	-6.73	-6.75	n/a	Based on 56 optical observations (of which 3 are rejected as outliers) from 2018-03-21.272 to 2018-04-13.316.
	JPL Sentry	1600 April 14	2090-2118	2	1.083618e-05	-6.49	-6.49	0	Computed at 07:17 April 14th Pacific time based on 58 observations spanning 23.044 days (2018-Mar-21.27141 to 2018-Apr-13.315681). Diameter approximately 0.012 km. from weighted mean H=27.19.
	Assessment postings were noted by A/CC on 25 March, 1 April, 14 April & 15 April - References: DOUs 2018-G01 & 2018-G91

2018 FU1	NEODyS	1520 April 17	2055-2117	62	1.28e-04	-5.13	-5.44	0	Based on 28 optical observations (of which 1 are rejected as outliers) from 2018-03-18.474 to 2018-04-13.632.
	JPL Sentry	1630 April 16	2090-2117	6	4.2208423e-06	-6.67	-6.73	0	Computed at 09:09 April 16th Pacific time based on 23 observations spanning 26.157 days (2018-Mar-18.47342 to 2018-Apr-13.630872). Diameter approximately 0.014 km. from weighted mean H=26.86.
	Assessment postings were noted by A/CC on 25 March, 27 March, 28 March, 3 April, 5 April, 16 April & 17 April - References: DOUs 2018-F134, 2018-G16 & 2018-H02

2018 EE9	NEODyS	1648 March 28	2040-2118	41	1.39e-05	-5.56	-6.28	n/a	Based on 13 optical observations (of which 0 are rejected as outliers) from 2018-03-12.667 to 2018-03-26.315.
	JPL Sentry	1542 March 27	2081-2118	21	1.5853806e-05	-5.55	-5.93	0	Computed at 07:35 March 27th Pacific time based on 13 observations spanning 13.648 days (2018-Mar-12.66591 to 2018-Mar-26.31435). Diameter approximately 0.018 km. from weighted mean H=26.39.
	Assessment postings were noted by A/CC on 27 March & 28 March - References: DOU 2018-F134

2018 EL4	NEODyS	2257 April 15	2102-2110	5	1.91e-06	-6.28	-6.56	0	Based on 76 optical observations (of which 0 are rejected as outliers) from 2018-03-14.211 to 2018-04-13.283.
	JPL Sentry	1600 April 14	2110-2110	2	1.0162e-07	-7.57	-7.84	0	Computed at 07:13 April 14th Pacific time based on 81 observations spanning 30.072 days (2018-Mar-14.20994 to 2018-Apr-13.281742). Diameter approximately 0.030 km. from weighted mean H=25.28.
	Assessment postings were noted by A/CC on 25 March, 26 March, 28 March, 1 April, 2 April, 4 April, 5 April, 6 April, 7 April, 14 April & 15 April - References: DOUs 2018-F133, 2018-G01, 2018-G17, 2018-G20, 2018-G27 & 2018-G91

2018 EB4	NEODyS	1551 April 6	2099-2111	3	3.25e-06	-5.86	-5.87	0	Based on 85 optical observations (of which 0 are rejected as outliers) from 2018-03-12.350 to 2018-03-16.061.
	JPL Sentry	1615 April 5	2099-2103	2	2.62933e-06	-5.95	-5.96	0	Computed at 07:56 April 5th Pacific time based on 85 observations spanning 3.7107 days (2018-Mar-12.34928 to 2018-Mar-16.06002). Diameter approximately 0.028 km. from weighted mean H=25.41.
	Assessment postings were noted by A/CC on 5 April & 6 April - References: DOU 2018-G20

2016 AZ193	JPL Sentry	1500 April 11	2018-2114	501	2.2029633e-06	-6.27	-7.22	0	Computed at 14:28 April 6th of 2017 Pacific time based on 9 observations spanning .15930 days (2016-Jan-03.25638 to 2016-Jan-03.41568). Diameter approximately 0.016 km. from weighted mean H=26.62.
2016 AZ193	An assessment posting was noted by A/CC on 11 April - References: no recent MPECs

2014 HG196	JPL Sentry	1802 April 9	2018-2117	332	9.795112e-07	-6.43	-7.44	0	Computed at 21:29 April 8th of 2017 Pacific time based on 18 observations spanning 1.0300 days (2014-Apr-23.08628 to 2014-Apr-24.11626). Diameter approximately 0.016 km. from weighted mean H=26.56.
2014 HG196	An assessment posting was noted by A/CC on 9 April - References: no recent MPECs

2008 US	JPL Sentry	1630 April 19	2019-2069	29	6.5255251e-06	-6.95	-7.37	0	Computed at 14:44 April 7th of 2017 Pacific time based on 15 observations spanning .08144 days (2008-Oct-21.35391 to 2008-Oct-21.43535). Diameter approximately 0.002 km. from weighted mean H=31.42.
	NEODyS	1630 April 19	2019-2087	49	4.1e-06	-7.76	-8.14	0	Based on 15 optical observations (of which 0 are rejected as outliers) from 2008-10-21.355 to 2008-10-21.436.
	Assessment postings were noted by A/CC on 19 April - References: no recent MPECs

2008 GY21	JPL Sentry	1837 April 15	R E M O V E D						Removed. MPC identifies as 2018 GY3.
2008 GY21	An assessment posting was noted by A/CC on 15 April - References: no recent MPECs

2004 FU162	NEODyS	1603 April 4	2018-2116	184	2.26e-06	-6.82	-7.69	0	Based on 4 optical observations (of which 0 are rejected as outliers) from 2004-03-31.278 to 2004-03-31.309.
2004 FU162	An assessment posting was noted by A/CC on 4 April - References: no recent MPECs

2002 EM7	NEODyS	1603 April 4	2117	2	1.04e-08	-8.09	-8.1	0	Based on 69 optical observations (of which 0 are rejected as outliers) from 2002-03-12.307 to 2002-04-06.269.
2002 EM7	An assessment posting was noted by A/CC on 4 April - References: no recent MPECs
C L E A R E D
2018 HA1	JPL Sentry	1545 April 24	R E M O V E D						Risk listing removed at 1518 UTC April 24th
	NEODyS	1545 April 24	R E M O V E D
	Assessment postings were noted by A/CC on 22 April, 23 April & 24 April - References: MPEC 2018-H65 plus DOUs 2018-H69 & 2018-H71

2018 GA5	NEODyS	1537 April 23	R E M O V E D
	JPL Sentry	1800 April 22	R E M O V E D						Risk listing removed at 1450 UTC April 22nd
	Assessment postings were noted by A/CC on 16 April, 18 April, 19 April, 20 April, 21 April, 22 April & 23 April - References: MPEC 2018-H08 plus DOUs 2018-H29, 2018-H41, 2018-H42, 2018-H56 & 2018-H63

2018 GY3	JPL Sentry	1630 April 16	R E M O V E D						Risk listing removed at 1916 UTC April 15th
2018 GY3	Assessment postings were noted by A/CC on 15 April & 16 April - References: MPECs 2018-G102 & 2018-G123

2018 GN2	NEODyS	1520 April 17	R E M O V E D
2018 GN2	Assessment postings were noted by A/CC on 14 April & 17 April - References: MPEC 2018-G88 plus DOUs 2018-H02 & 2018-H56

2018 GG2	NEODyS	1600 April 18	R E M O V E D
	JPL Sentry	0406 April 18	R E M O V E D						Risk listing removed at 0338 UTC April 18th
	Assessment postings were noted by A/CC on 13 April, 14 April, 15 April, 16 April, 17 April & 18 April - References: MPECs 2018-G77 & 2018-H24 plus DOUs 2018-G95, 2018-H02, 2018-H17, 2018-H29, 2018-H41, 2018-H56 & 2018-H63

2018 GY1	NEODyS	1630 April 19	R E M O V E D
	JPL Sentry	1540 April 16	R E M O V E D						Risk listing removed at 1410 UTC April 16th
	Assessment postings were noted by A/CC on 12 April, 13 April, 14 April, 15 April, 16 April, 18 April & 19 April - References: MPEC 2018-G67 plus DOUs 2018-G74, 2018-G95, 2018-H02, 2018-H17, 2018-H29, 2018-H41, 2018-H42, 2018-H56, 2018-H63, 2018-H69 & 2018-H71

2018 GG1	NEODyS	2257 April 15	R E M O V E D
	JPL Sentry	1635 April 15	R E M O V E D						Risk listing removed at 1441 UTC April 15th
	Assessment postings were noted by A/CC on 11 April, 12 April & 15 April - References: MPEC 2018-G50 plus DOUs 2018-G95 & 2018-H42

2018 GZ	NEODyS	1520 April 17	R E M O V E D
2018 GZ	Assessment postings were noted by A/CC on 11 April & 17 April - References: MPEC 2018-G47 plus DOUs 2018-G74, 2018-G95, 2018-H02, 2018-H29 & 2018-H63

2018 GV	NEODyS	1520 April 17	R E M O V E D
2018 GV	Assessment postings were noted by A/CC on 11 April & 17 April - References: MPEC 2018-G46 plus DOUs 2018-G91, 2018-G95, 2018-H02 & 2018-H69

2018 GQ	JPL Sentry	1600 April 18	R E M O V E D						Risk listing removed at 1418 UTC April 18th
	NEODyS	2257 April 15	R E M O V E D
	Assessment postings were noted by A/CC on 10 April, 11 April, 14 April, 15 April & 18 April - References: MPEC 2018-G38 plus DOUs 2018-G48, 2018-G91, 2018-G95 & 2018-H29

2018 GE	NEODyS	1630 April 19	R E M O V E D
2018 GE	Assessment postings were noted by A/CC on 9 April, 12 April, 16 April & 19 April - References: MPEC 2018-G24 plus DOUs 2018-G34, 2018-G37, 2018-G57, 2018-G91, 2018-G95, 2018-H29, 2018-H41, 2018-H56 & 2018-H71

2018 GC	NEODyS	1650 April 10	R E M O V E D
2018 GC	Assessment postings were noted by A/CC on 7 April, 8 April & 10 April - References: MPEC 2018-G25 plus DOUs 2018-G27, 2018-G34, 2018-G41, 2018-G95 & 2018-H41

2018 FJ5	NEODyS	2257 April 15	R E M O V E D
	JPL Sentry	1555 April 13	R E M O V E D						Risk listing removed at 1431 UTC April 13th
	Assessment postings were noted by A/CC on 28 March, 30 March, 31 March, 4 April, 5 April, 6 April, 7 April, 8 April, 10 April, 11 April, 12 April, 13 April, 14 April & 15 April - References: MPEC 2018-F144 plus DOUs 2018-F159, 2018-G17, 2018-G20, 2018-G26, 2018-G27, 2018-G34, 2018-G41, 2018-G57, 2018-G74, 2018-G91, 2018-G95, 2018-H02, 2018-H41 & 2018-H71

2018 FQ4	NEODyS	1733 April 7	R E M O V E D
	JPL Sentry	1530 March 26	R E M O V E D						Risk listing removed at 1441 UTC March 24th
	Assessment postings were noted by A/CC on 24 March, 25 March, 26 March & 7 April - References: DOUs 2018-F122, 2018-F135 & 2018-G27

2018 FL4	NEODyS	1631 March 27	R E M O V E D
2018 FL4	Assessment postings were noted by A/CC on 25 March & 27 March - References: DOUs 2018-F134, 2018-F150, 2018-F158, 2018-G17 & 2018-H56

2018 FC2	JPL Sentry	1658 April 8	R E M O V E D						Risk listing removed at 1433 UTC April 8th
	NEODyS	1658 April 8	R E M O V E D
	Assessment postings were noted by A/CC on 24 March, 25 March, 27 March, 28 March, 31 March, 7 April & 8 April - References: DOUs 2018-F122, 2018-F134, 2018-F135, 2018-F159, 2018-G27 & 2018-G34

2018 ED4	NEODyS	1615 April 5	R E M O V E D
	JPL Sentry	1603 April 4	R E M O V E D						Risk listing removed at 1427 UTC April 4th
	Assessment postings were noted by A/CC on 4 April & 5 April - References: DOUs 2018-G17 & 2018-G74

2016 SR2	NEODyS	1551 April 6	R E M O V E D
	JPL Sentry	1615 April 5	R E M O V E D						Risk listing removed at 1442 UTC April 5th
	Assessment postings were noted by A/CC on 5 April & 6 April - References: DOUs 2018-G20, 2018-G26 & 2018-G34

2006 XZ2	NEODyS	1700 March 25	R E M O V E D
	JPL Sentry	1601 March 24	R E M O V E D
	Assessment postings were noted by A/CC on 24 March & 25 March - 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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