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 HW1JPL Sentry2358 April 242104-211869.27193e-05-5.06-5.170Computed 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.
An assessment posting was noted by A/CC on 24 April   -   References: MPEC 2018-H82
2018 GR4JPL Sentry1545 April 242048-2100450.00027512847-4.74-5.070Computed 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.
NEODyS1545 April 242048-21181711.27e-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 GG4NEODyS0643 April 222058-207021.85e-07-7.14-7.390Based on 36 optical observations (of which 2 are rejected as outliers) from 2018-04-13.438 to 2018-04-21.365.
JPL Sentry1634 April 212058-207022.6775e-07-6.96-7.100Computed 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 GL2NEODyS2142 April 242060-2113114.82e-06-4.99-5.090Based on 66 optical observations (of which 0 are rejected as outliers) from 2018-04-11.236 to 2018-04-23.381.
JPL Sentry1545 April 242050-209358.454344e-06-4.75-4.800Computed 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 GE2JPL Sentry1545 April 242060-2117857.9716974e-05-5.36-5.930Computed 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.
NEODyS1545 April 242054-21182506.55e-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 GD2NEODyS1555 April 132054-2117252.03e-05-7.22-7.660Based on 13 optical observations (of which 0 are rejected as outliers) from 2018-04-11.386 to 2018-04-12.459.
JPL Sentry2034 April 122096-2117158.5834508e-06-7.59-8.230Computed 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 GNNEODyS1530 April 11210913.12e-08-8.08-8.080Based on 81 optical observations (of which 0 are rejected as outliers) from 2018-04-08.337 to 2018-04-09.296.
An assessment posting was noted by A/CC on 11 April   -   References: MPEC 2018-G35 plus DOUs 2018-G41 & 2018-G48
2018 GGNEODyS1600 April 142086-209561.97e-06-5.64-5.670Based on 105 optical observations (of which 4 are rejected as outliers) from 2018-04-06.302 to 2018-04-11.349.
JPL Sentry1555 April 132086-209541.905352e-06-5.66-5.670Computed 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 FL29NEODyS2257 April 152024-21185062.68e-06-7.94-8.77n/aBased on 11 optical observations (of which 2 are rejected as outliers) from 2018-03-19.433 to 2018-03-20.302.
JPL Sentry1600 April 142026-21162668.50503858000001e-05-6.33-6.720Computed 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 FK5NEODyS1550 March 302033-2117173.43e-06-7.25-7.520Based on 33 optical observations (of which 0 are rejected as outliers) from 2018-03-28.223 to 2018-03-29.974.
JPL Sentry0437 March 302087-211023.72e-06-7.24-7.510Computed 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 FE4NEODyS1600 April 142079-2118151.17e-06-5.83-6.48n/aBased on 26 optical observations (of which 1 are rejected as outliers) from 2018-03-20.460 to 2018-03-27.382.
JPL Sentry1555 April 132085-210161.50548e-06-5.64-5.940Computed 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 FA4NEODyS2257 April 15209111.97e-09-9.03-9.030Based on 34 optical observations (of which 0 are rejected as outliers) from 2018-03-18.365 to 2018-04-13.447.
JPL Sentry1635 April 15R E M O V E DRisk 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 FE3NEODyS2257 April 152090-211835.84e-06-6.73-6.75n/aBased on 56 optical observations (of which 3 are rejected as outliers) from 2018-03-21.272 to 2018-04-13.316.
JPL Sentry1600 April 142090-211821.083618e-05-6.49-6.490Computed 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 FU1NEODyS1520 April 172055-2117621.28e-04-5.13-5.440Based on 28 optical observations (of which 1 are rejected as outliers) from 2018-03-18.474 to 2018-04-13.632.
JPL Sentry1630 April 162090-211764.2208423e-06-6.67-6.730Computed 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 EE9NEODyS1648 March 282040-2118411.39e-05-5.56-6.28n/aBased on 13 optical observations (of which 0 are rejected as outliers) from 2018-03-12.667 to 2018-03-26.315.
JPL Sentry1542 March 272081-2118211.5853806e-05-5.55-5.930Computed 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 EL4NEODyS2257 April 152102-211051.91e-06-6.28-6.560Based on 76 optical observations (of which 0 are rejected as outliers) from 2018-03-14.211 to 2018-04-13.283.
JPL Sentry1600 April 142110-211021.0162e-07-7.57-7.840Computed 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 EB4NEODyS1551 April 62099-211133.25e-06-5.86-5.870Based on 85 optical observations (of which 0 are rejected as outliers) from 2018-03-12.350 to 2018-03-16.061.
JPL Sentry1615 April 52099-210322.62933e-06-5.95-5.960Computed 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 AZ193JPL Sentry1500 April 112018-21145012.2029633e-06-6.27-7.220Computed 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.
An assessment posting was noted by A/CC on 11 April   -   References: no recent MPECs
2014 HG196JPL Sentry1802 April 92018-21173329.795112e-07-6.43-7.440Computed 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.
An assessment posting was noted by A/CC on 9 April   -   References: no recent MPECs
2008 USJPL Sentry1630 April 192019-2069296.5255251e-06-6.95-7.370Computed 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.
NEODyS1630 April 192019-2087494.1e-06-7.76-8.140Based 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 GY21JPL Sentry1837 April 15R E M O V E DRemoved. MPC identifies as 2018 GY3.
An assessment posting was noted by A/CC on 15 April   -   References: no recent MPECs
2004 FU162NEODyS1603 April 42018-21161842.26e-06-6.82-7.690Based on 4 optical observations (of which 0 are rejected as outliers) from 2004-03-31.278 to 2004-03-31.309.
An assessment posting was noted by A/CC on 4 April   -   References: no recent MPECs
2002 EM7NEODyS1603 April 4211721.04e-08-8.09-8.10Based on 69 optical observations (of which 0 are rejected as outliers) from 2002-03-12.307 to 2002-04-06.269.
An assessment posting was noted by A/CC on 4 April   -   References: no recent MPECs
C   L   E   A   R   E   D
2018 HA1JPL Sentry1545 April 24R E M O V E DRisk listing removed at 1518 UTC April 24th
NEODyS1545 April 24R 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 GA5NEODyS1537 April 23R E M O V E D
JPL Sentry1800 April 22R E M O V E DRisk 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 GY3JPL Sentry1630 April 16R E M O V E DRisk listing removed at 1916 UTC April 15th
Assessment postings were noted by A/CC on 15 April & 16 April   -   References: MPECs 2018-G102 & 2018-G123
2018 GN2NEODyS1520 April 17R E M O V E D
Assessment postings were noted by A/CC on 14 April & 17 April   -   References: MPEC 2018-G88 plus DOUs 2018-H02 & 2018-H56
2018 GG2NEODyS1600 April 18R E M O V E D
JPL Sentry0406 April 18R E M O V E DRisk 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 GY1NEODyS1630 April 19R E M O V E D
JPL Sentry1540 April 16R E M O V E DRisk 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 GG1NEODyS2257 April 15R E M O V E D
JPL Sentry1635 April 15R E M O V E DRisk 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 GZNEODyS1520 April 17R E M O V E D
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 GVNEODyS1520 April 17R E M O V E D
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 GQJPL Sentry1600 April 18R E M O V E DRisk listing removed at 1418 UTC April 18th
NEODyS2257 April 15R 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 GENEODyS1630 April 19R E M O V E D
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 GCNEODyS1650 April 10R E M O V E D
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 FJ5NEODyS2257 April 15R E M O V E D
JPL Sentry1555 April 13R E M O V E DRisk 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 FQ4NEODyS1733 April 7R E M O V E D
JPL Sentry1530 March 26R E M O V E DRisk 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 FL4NEODyS1631 March 27R E M O V E D
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 FC2JPL Sentry1658 April 8R E M O V E DRisk listing removed at 1433 UTC April 8th
NEODyS1658 April 8R 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 ED4NEODyS1615 April 5R E M O V E D
JPL Sentry1603 April 4R E M O V E DRisk 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 SR2NEODyS1551 April 6R E M O V E D
JPL Sentry1615 April 5R E M O V E DRisk 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 XZ2NEODyS1700 March 25R E M O V E D
JPL Sentry1601 March 24R 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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