A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted in the Last 31 Days

Compiled at 2308 UTC on 18 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 LZ13JPL Sentry2104 June 182036-2113354.670733e-07-3.40-3.690Computed at 12:32 June 18th Pacific time based on 18 observations spanning 2.7861 days (2018-Jun-15.52506 to 2018-Jun-18.31119). Diameter approximately 0.271 km. from weighted mean H=20.45.
An assessment posting was noted by A/CC on 18 June   -   References: MPEC 2018-M36
2018 LT5JPL Sentry1900 June 172025-2083161.0347837e-06-5.63-6.030Computed at 11:30 June 17th Pacific time based on 9 observations spanning 2.7871 days (2018-Jun-14.39564 to 2018-Jun-17.18274). Diameter approximately 0.033 km. from weighted mean H=25.03.
An assessment posting was noted by A/CC on 17 June   -   References: MPEC 2018-M18
2018 LV3NEODyS1500 June 15206111.34e-07-7.53-7.530Based on 29 optical observations (of which 0 are rejected as outliers) from 2018-06-11.383 to 2018-06-14.182.
An assessment posting was noted by A/CC on 15 June   -   References: MPEC 2018-L59 plus DOUs 2018-L67 & 2018-L73
2018 LR3JPL Sentry1500 June 182077-211158.7998e-06-6.01-6.080Computed at 07:06 June 18th Pacific time based on 31 observations spanning 7.9301 days (2018-Jun-10.32538 to 2018-Jun-18.25548). Diameter approximately 0.018 km. from weighted mean H=26.35.
NEODyS1934 June 172076-2111135.26e-06-6.29-6.540Based on 28 optical observations (of which 0 are rejected as outliers) from 2018-06-10.326 to 2018-06-15.264.
Assessment postings were noted by A/CC on 12 June, 13 June, 14 June, 15 June, 17 June & 18 June   -   References: MPEC 2018-L62 plus DOUs 2018-L67, 2018-L73, 2018-M02 & 2018-M27
2018 LK2JPL Sentry2005 June 82029-2110271.310641e-07-4.35-4.900Computed at 12:30 June 8th Pacific time based on 20 observations spanning 5.4743 days (2018-Jun-02.93056 to 2018-Jun-08.40482). Diameter approximately 0.340 km. from weighted mean H=20.00.
An assessment posting was noted by A/CC on 8 June   -   References: MPEC 2018-L30
2018 LE1NEODyS1804 June 162066-211292.33e-06-7.34-7.350Based on 50 optical observations (of which 1 are rejected as outliers) from 2018-06-05.395 to 2018-06-14.468.
JPL Sentry1504 June 162102-210211.702e-06-7.46-7.460Computed at 07:37 June 16th Pacific time based on 49 observations spanning 9.0727 days (2018-Jun-05.39422 to 2018-Jun-14.466903). Diameter approximately 0.010 km. from weighted mean H=27.69.
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   -   References: MPEC 2018-L24 plus DOUs 2018-L29, 2018-L39, 2018-L47, 2018-L52, 2018-L55, 2018-L67, 2018-L78 & 2018-M01
2018 LD1NEODyS1500 June 15208911.79e-08-8.61-8.610Based on 46 optical observations (of which 0 are rejected as outliers) from 2018-06-05.341 to 2018-06-13.388.
JPL Sentry1504 June 13R E M O V E DRisk 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 LMNEODyS1934 June 172112-211638.54e-07-6.67-6.960Based on 85 optical observations (of which 0 are rejected as outliers) from 2018-06-04.255 to 2018-06-15.259.
JPL Sentry1502 June 172112-211212.597e-07-7.16-7.160Computed at 07:22 June 17th Pacific time based on 85 observations spanning 11.004 days (2018-Jun-04.25437 to 2018-Jun-15.257894). Diameter approximately 0.031 km. from weighted mean H=25.20.
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   -   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 LBNEODyS1555 June 52075-2118175.65e-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 Sentry0307 June 42092-2116113.61698e-06-6.29-6.810Computed 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 KY2JPL Sentry1555 May 30R E M O V E DRisk listing removed at 1358 UTC May 30th
NEODyS0408 May 282075-211529.54e-08-7.98-8.230Based 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 JL1NEODyS1600 May 192112-211874.13e-06-6.68-7.13n/aBased on 46 optical observations (of which 0 are rejected as outliers) from 2018-05-08.265 to 2018-05-16.243.
JPL Sentry1520 May 182112-211845.402104e-06-6.55-6.720Computed at 07:34 May 18th Pacific time based on 39 observations spanning 7.9781 days (2018-May-08.26382 to 2018-May-16.241941). Diameter approximately 0.015 km. from weighted mean H=26.73.
Assessment postings were noted by A/CC on 18 May & 19 May   -   References: DOU 2018-K14
2018 JG1NEODyS1500 June 152111-211837.15e-09-8.30-8.59n/aBased on 80 optical observations (of which 0 are rejected as outliers) from 2018-05-08.180 to 2018-06-13.613.
JPL Sentry1551 June 14R E M O V E DRisk listing removed at 1416 UTC June 14th
Assessment postings were noted by A/CC on 18 May, 19 May, 13 June, 14 June & 15 June   -   References: DOUs 2018-K21, 2018-L67 & 2018-L73
2018 JNNEODyS0408 May 282100-211233.0e-06-5.92-5.930Based on 146 optical observations (of which 1 are rejected as outliers) from 2018-05-05.424 to 2018-05-27.457.
JPL Sentry1641 May 272100-211221.6534e-06-6.19-6.470Computed 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 18 May, 19 May, 20 May, 21 May, 23 May, 24 May, 25 May, 26 May, 27 May & 28 May   -   References: DOUs 2018-K14, 2018-K21, 2018-K41, 2018-K49, 2018-K71, 2018-K77, 2018-K86 & 2018-K97
2018 HJ2NEODyS1500 June 152085-211435.46e-06-5.37-5.520Based on 106 optical observations (of which 0 are rejected as outliers) from 2018-04-23.412 to 2018-05-23.461.
JPL Sentry1504 June 132085-208512.425e-08-7.65-7.650Computed 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 18 May, 19 May, 23 May, 24 May, 25 May, 13 June & 15 June   -   References: DOUs 2018-K14, 2018-K21, 2018-K71, 2018-K77 & 2018-L67
2018 GL2NEODyS1508 May 232060-211277.63e-08-6.73-6.990Based on 71 optical observations (of which 0 are rejected as outliers) from 2018-04-11.236 to 2018-05-16.326.
JPL Sentry1532 May 22R E M O V E DRisk listing removed at 1420 UTC May 22nd
Assessment postings were noted by A/CC on 22 May & 23 May   -   References: DOU 2018-K63
2018 GE2NEODyS1508 May 232054-21172297.59e-05-5.39-5.990Based on 105 optical observations (of which 4 are rejected as outliers) from 2018-04-10.411 to 2018-05-16.437.
JPL Sentry1639 May 222060-2117437.511643e-05-5.42-5.990Computed 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
2018 EZ2NEODyS1600 May 192055-2118152.98e-05-5.25-5.3n/aBased on 89 optical observations (of which 0 are rejected as outliers) from 2018-03-12.422 to 2018-05-17.372.
JPL Sentry2138 May 182118-211811.248e-08-9.03-9.030Computed at 13:59 May 18th Pacific time based on 89 observations spanning 65.742 days (2018-Mar-12.62906 to 2018-May-17.371548). Diameter approximately 0.017 km. from weighted mean H=26.55.
Assessment postings were noted by A/CC on 18 May & 19 May   -   References: DOU 2018-K14
2017 KB3NEODyS1530 June 122084-2117131.08e-07-7.32-7.790Based on 46 optical observations (of which 0 are rejected as outliers) from 2017-05-17.219 to 2017-05-30.379.
JPL Sentry1535 June 112100-211743.66747e-08-7.78-7.840Computed 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 LY21JPL Sentry1804 June 52019-21169768.85019570999999e-05-5.16-5.660Computed 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.
Assessment postings were noted by A/CC on 4 June & 5 June   -   References: no recent MPECs
2008 VS4JPL Sentry1520 May 182018-21143146.040597e-07-5.45-6.320Computed at 00:23 April 8th of 2017 Pacific time based on 10 observations spanning .08330 days (2008-Nov-07.413 to 2008-Nov-07.4963). Diameter approximately 0.049 km. from weighted mean H=24.22.
An assessment posting was noted by A/CC on 18 May   -   References: no recent MPECs
C   L   E   A   R   E   D
2018 LM4NEODyS1534 June 18R E M O V E D
JPL Sentry1500 June 18R E M O V E DRisk 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 DOU 2018-M27
2018 LR2NEODyS1500 June 15R E M O V E D
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 LB1NEODyS1609 June 15R E M O V E D
JPL Sentry1551 June 14R E M O V E DRisk 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 LANEODyS1500 June 7R E M O V E D
Assessment postings were noted by A/CC on 4 June, 5 June & 7 June   -   References: MPEC 2018-L04
2018 KF1JPL Sentry1608 May 25R E M O V E DRisk listing removed at 1417 UTC May 25th
NEODyS1601 May 22R E M O V E D
Assessment postings were noted by A/CC on 20 May, 21 May, 22 May, 23 May & 25 May   -   References: MPEC 2018-K47 plus DOUs 2018-K49, 2018-K63, 2018-K71, 2018-K86 & 2018-K91
2018 KB1NEODyS1532 May 22R E M O V E D
Assessment postings were noted by A/CC on 21 May & 22 May   -   References: MPEC 2018-K43 plus DOUs 2018-K63, 2018-K71, 2018-K77, 2018-K97, 2018-K104, 2018-L02, 2018-L03, 2018-L29, 2018-L39 & 2018-L47
2018 JD5NEODyS1508 May 23R E M O V E D
JPL Sentry1532 May 22R E M O V E DRisk listing removed at 1434 UTC May 22nd
Assessment postings were noted by A/CC on 19 May, 22 May & 23 May   -   References: MPEC 2018-K24 plus DOUs 2018-K63, 2018-K71, 2018-K77, 2018-K86, 2018-K91, 2018-K97, 2018-L02, 2018-L03, 2018-L12 & 2018-L47
2018 JC2NEODyS2358 May 26R E M O V E D
JPL Sentry1600 May 26R E M O V E DRisk listing removed at 1359 UTC May 26th
Assessment postings were noted by A/CC on 18 May, 19 May, 20 May, 23 May, 24 May, 25 May & 26 May   -   References: DOUs 2018-K14, 2018-K21, 2018-K41, 2018-K71, 2018-K77, 2018-K86, 2018-K91 & 2018-L67
2017 TA6NEODyS1601 June 3R E M O V E D
JPL Sentry1600 June 2R E M O V E DRisk 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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