A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted in the Last 31 Days

Compiled at 1836 UTC on 23 June 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 MB1JPL Sentry1836 June 232048-2117795.399666e-07-3.06-3.580Computed at 11:03 June 23rd Pacific time based on 73 observations spanning 4.0576 days (2017-Jun-19.31418 to 2017-Jun-23.371794). Diameter approximately 0.639 km. from weighted mean H=18.62.
An assessment posting was noted by A/CC on 23 June   -   References: MPEC 2017-M48
2017 LUNEODyS1614 June 23205617.25e-06-1.97-1.971Based on 51 optical observations (of which 0 are rejected as outliers) from 2017-06-08.757 to 2017-06-22.151.
JPL Sentry1507 June 232056-205617.763e-07-2.94-2.940Computed at 07:47 June 23rd Pacific time based on 51 observations spanning 13.394 days (2017-Jun-08.75606 to 2017-Jun-22.14982). Diameter approximately 0.670 km. from weighted mean H=18.51.
Assessment postings were noted by A/CC on 15 June, 21 June, 22 June & 23 June   -   References: MPEC 2017-L68 plus DOUs 2017-L72, 2017-M39 & 2017-M43
2017 LDJPL Sentry1614 June 232053-21173030.0019402108704-4.25-4.800Computed at 08:36 June 23rd Pacific time based on 96 observations spanning 36.315 days (2017-May-16.298488 to 2017-Jun-21.613599). Diameter approximately 0.010 km. from weighted mean H=27.55.
NEODyS1918 June 172045-21176861.71e-03-4.27-4.860Based on 92 optical observations (of which 0 are rejected as outliers) from 2017-05-16.299 to 2017-06-16.607.
Assessment postings were noted by A/CC on 3 June, 4 June, 5 June, 6 June, 7 June, 8 June, 10 June, 12 June, 17 June & 23 June   -   References: MPEC 2017-L25 plus DOUs 2017-L27, 2017-L45, 2017-L50, 2017-L54, 2017-L56, 2017-M06 & 2017-M43
2017 KC36NEODyS1614 June 232037-205421.42e-06-6.64-6.640Based on 5 optical observations (of which 0 are rejected as outliers) from 2017-05-30.495 to 2017-05-31.423.
JPL Sentry1507 June 232037-206136.4518e-07-7.27-7.320Computed at 07:50 June 23rd Pacific time based on 5 observations spanning .92772 days (2017-May-30.4941 to 2017-May-31.421823). Diameter approximately 0.011 km. from weighted mean H=27.42.
Assessment postings were noted by A/CC on 23 June   -   References: DOU 2017-M43
2017 KJ32NEODyS1550 June 32083-211071.51e-07-9.07-9.450Based on 38 optical observations (of which 0 are rejected as outliers) from 2017-05-29.279 to 2017-06-02.361.
Assessment postings were noted by A/CC on 1 June & 3 June   -   References: MPEC 2017-K91 plus DOU 2017-L07
2017 KQ27NEODyS1420 June 212080-211731.17e-06-6.62-6.720Based on 63 optical observations (of which 1 are rejected as outliers) from 2017-05-25.305 to 2017-06-05.173.
JPL Sentry1615 June 202117-211714.739e-07-7.04-7.040Computed at 07:51 June 20th Pacific time based on 63 observations spanning 10.868 days (2017-May-25.30459 to 2017-Jun-05.17255). Diameter approximately 0.023 km. from weighted mean H=25.82.
Assessment postings were noted by A/CC on 28 May, 29 May, 30 May, 31 May, 1 June, 2 June, 3 June, 4 June, 6 June, 7 June, 20 June & 21 June   -   References: MPEC 2017-K69 plus DOUs 2017-K75, 2017-K88, 2017-K94, 2017-L01, 2017-L07, 2017-L22, 2017-L27, 2017-L50 & 2017-M29
2017 KH5NEODyS1619 June 182067-207433.5e-07-7.61-7.750Based on 50 optical observations (of which 2 are rejected as outliers) from 2017-05-24.395 to 2017-05-25.370.
JPL Sentry1550 June 182067-207422.377e-07-7.80-8.090Computed at 07:53 June 18th Pacific time based on 50 observations spanning .97523 days (2017-May-24.39387 to 2017-May-25.3691). Diameter approximately 0.010 km. from weighted mean H=27.59.
Assessment postings were noted by A/CC on 25 May, 26 May, 2 June & 18 June   -   References: MPEC 2017-K57 plus DOUs 2017-K60, 2017-L07 & 2017-M08
2017 KB3NEODyS1604 May 302084-2117195.36e-08-7.51-7.990Based on 38 optical observations (of which 0 are rejected as outliers) from 2017-05-17.219 to 2017-05-28.445.
JPL Sentry1600 May 292080-2115252.8626999e-06-5.77-6.330Computed at 08:46 May 29th Pacific time based on 38 observations spanning 11.227 days (2017-May-17.21791 to 2017-May-28.444519). Diameter approximately 0.035 km. from weighted mean H=24.93.
Assessment postings were noted by A/CC on 23 May, 24 May, 25 May, 26 May, 28 May, 29 May & 30 May   -   References: DOUs 2017-K33, 2017-K36, 2017-K58, 2017-K60, 2017-K73 & 2017-K75
2017 JB2NEODyS1517 June 22092-210232.75e-08-9.93-10.250Based on 30 optical observations (of which 1 are rejected as outliers) from 2017-05-06.445 to 2017-05-29.471.
JPL Sentry1530 June 12110-211129.655e-07-8.48-8.760Computed at 08:00 June 1st Pacific time based on 30 observations spanning 23.026 days (2017-May-06.44444 to 2017-May-29.470678). Diameter approximately 0.005 km. from weighted mean H=29.07.
Assessment postings were noted by A/CC on 29 May, 30 May, 1 June & 2 June   -   References: DOUs 2017-K75 & 2017-L01
2017 HJ61NEODyS1530 June 12026-204951.08e-05-6.12-6.20Based on 6 optical observations (of which 0 are rejected as outliers) from 2017-04-27.419 to 2017-04-28.396.
JPL Sentry1619 May 312024-208991.0311141e-05-6.15-6.180Computed at 07:55 May 31st Pacific time based on 6 observations spanning .97706 days (2017-Apr-27.4186 to 2017-Apr-28.395655). Diameter approximately 0.006 km. from weighted mean H=28.82.
Assessment postings were noted by A/CC on 31 May & 1 June   -   References: DOU 2017-K94
2017 HZ4NEODyS1420 June 212091-2112103.26e-05-5.25-5.270Based on 50 optical observations (of which 1 are rejected as outliers) from 2017-04-26.445 to 2017-06-18.998.
JPL Sentry1615 June 202091-210651.5846369e-05-5.56-5.580Computed at 08:06 June 20th Pacific time based on 49 observations spanning 53.553 days (2017-Apr-26.44436 to 2017-Jun-18.997168). Diameter approximately 0.023 km. from weighted mean H=25.86.
Assessment postings were noted by A/CC on 23 May, 24 May, 27 May, 28 May, 20 June & 21 June   -   References: DOUs 2017-K33, 2017-K61 & 2017-M29
2017 HG4NEODyS1604 May 302046-21151024.09e-05-5.81-6.380Based on 34 optical observations (of which 0 are rejected as outliers) from 2017-04-26.264 to 2017-05-27.986.
JPL Sentry1600 May 292048-2115233.949287e-05-5.88-6.590Computed at 08:32 May 29th Pacific time based on 34 observations spanning 31.722 days (2017-Apr-26.26272 to 2017-May-27.985182). Diameter approximately 0.010 km. from weighted mean H=27.65.
Assessment postings were noted by A/CC on 29 May & 30 May   -   References: DOU 2017-K75
2017 FVNEODyS1600 June 222113-211532.35e-08-7.60-7.710Based on 103 optical observations (of which 0 are rejected as outliers) from 2017-03-17.266 to 2017-04-01.875.
An assessment posting was noted by A/CC on 22 June   -   References: DOU 2017-M39
2016 SR2NEODyS1554 June 62103-211541.28e-06-6.94-7.370Based on 78 optical observations (of which 2 are rejected as outliers) from 2016-09-25.433 to 2017-06-02.359.
JPL Sentry0531 June 62103-210523.896e-07-7.44-7.610Computed at 21:05 June 5th Pacific time based on 73 observations spanning 249.93 days (2016-Sep-25.43215 to 2017-Jun-02.358139). Diameter approximately 0.019 km. from weighted mean H=26.28.
Assessment postings were noted by A/CC on 6 June   -   References: MPEC 2017-L48
2016 NL56NEODyS1530 June 12020-2116232.52e-08-4.05-4.110Based on 6 optical observations (of which 0 are rejected as outliers) from 2016-07-12.445 to 2016-07-15.227.
JPL Sentry2100 May 302023-21172547.20760499999999e-07-3.67-4.510Computed at 13:56 May 30th Pacific time based on 6 observations spanning 2.7820 days (2016-Jul-12.443828 to 2016-Jul-15.225848). Diameter approximately 0.264 km. from weighted mean H=20.61.
Assessment postings were noted by A/CC on 28 May, 30 May & 1 June   -   References: DOU 2017-K73
2014 LY21JPL Sentry1600 June 42018-21169799.10818880999998e-05-5.00-5.660Computed at 18:09 April 8th 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=29.20.
An assessment posting was noted by A/CC on 4 June   -   References: no recent MPECs
2012 TC4NEODyS1500 June 212020-2116906.68e-05-4.96-5.740Based on 314 optical observations (of which 0 are rejected as outliers) from 2012-10-04.468 to 2012-10-11.749.
Assessment postings were noted by A/CC on 16 June & 21 June   -   References: DOU 2017-L72
2010 XB73JPL Sentry1530 May 262023-2110502.783641e-07-5.16-5.960Computed at 20:52 April 7th Pacific time based on 18 observations spanning 1.0847 days (2010-Dec-14.13028 to 2010-Dec-15.21496). Diameter approximately 0.110 km. from weighted mean H=22.50.
An assessment posting was noted by A/CC on 26 May   -   References: no recent MPECs
2010 GZ60JPL Sentry1632 May 232017-21164805.4242289e-06-0.80-1.750Computed at 13:26 April 18th Pacific time based on 14 observations spanning 1.2571 days (2010-Apr-05.71913 to 2010-Apr-06.97621). Diameter approximately 2.000 km. from weighted mean H=16.14.
An assessment posting was noted by A/CC on 23 May   -   References: no recent MPECs
2008 UB7JPL Sentry1730 May 312044-2100333.4756026e-05-3.71-4.310Computed at 10:20 May 31st Pacific time based on 66 observations spanning 4.8668 days (2008-Oct-26.25877 to 2008-Oct-31.12558). Diameter approximately 0.057 km. from weighted mean H=23.85.
An assessment posting was noted by A/CC on 31 May   -   References: no recent MPECs
2007 VH189JPL Sentry1805 June 72037-204552.819e-08-6.25-6.690Computed at 03:24 April 7th Pacific time based on 23 observations spanning 5.8502 days (2007-Nov-14.35096 to 2007-Nov-20.20114). Diameter approximately 0.073 km. from weighted mean H=23.35.
An assessment posting was noted by A/CC on 7 June   -   References: no recent MPECs
C   L   E   A   R   E   D
2017 LO1NEODyS1420 June 21R E M O V E D
JPL Sentry1615 June 20R E M O V E DRisk listing removed at 1504 UTC June 20th.
Assessment postings were noted by A/CC on 18 June, 19 June, 20 June & 21 June   -   References: MPEC 2017-M13 plus DOUs 2017-M27, 2017-M29, 2017-M39 & 2017-M43
2017 LCNEODyS1932 June 4R E M O V E D
Assessment postings were noted by A/CC on 3 June & 4 June   -   References: MPEC 2017-L24 plus DOUs 2017-L27, 2017-L67, 2017-L72, 2017-M01, 2017-M06, 2017-M27 & 2017-M29
2017 FZ2JPL Sentry2132 June 20R E M O V E DRisk listing removed at 2105 UTC June 20th.
An assessment posting was noted by A/CC on 20 June   -   References: no MPECs, radar: 20 June
2017 AF21JPL Sentry1500 June 21R E M O V E DRisk listing removed at 1450 UTC June 21st.
NEODyS1420 June 21R E M O V E D
Assessment postings were noted by A/CC on 21 June   -   References: DOU 2017-M39
2015 YC1JPL Sentry0241 June 23R E M O V E DRisk listing removed at 0204 UTC June 23rd.
An assessment posting was noted by A/CC on 23 June   -   References: MPEC 2017-M42
1991 VGNEODyS1630 June 2R E M O V E D
JPL Sentry1953 June 1R E M O V E DRisk listing removed at 1935 UTC June 1st.
Assessment postings were noted by A/CC on 1 June & 2 June   -   References: MPEC 2017-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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