A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted in the Last 31 Days

Compiled at 1935 UTC on 17 August 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 PZ21NEODyS1935 Aug. 172045-2113341.06e-04-4.91-5.130Based on 15 optical observations (of which 0 are rejected as outliers) from 2018-08-12.369 to 2018-08-17.300.
JPL Sentry1530 Aug. 172045-2108278.6108565e-05-4.97-5.190Computed at 08:21 Aug. 17th Pacific time based on 15 observations spanning 4.9307 days (2018-Aug-12.36837 to 2018-Aug-17.299034). Diameter approximately 0.016 km. from weighted mean H=26.70.
Assessment postings were noted by A/CC on 15 Aug., 16 Aug. & 17 Aug.   -   References: MPEC 2018-P116 plus DOU 2018-Q23
2018 PK21NEODyS2307 Aug. 142109-211231.94e-07-7.74-7.840Based on 22 optical observations (of which 0 are rejected as outliers) from 2018-08-11.496 to 2018-08-14.324.
JPL Sentry2020 Aug. 142100-2118186.4056147e-06-6.22-6.920Computed at 12:36 Aug. 14th Pacific time based on 22 observations spanning 2.8273 days (2018-Aug-11.4954 to 2018-Aug-14.32275). Diameter approximately 0.021 km. from weighted mean H=26.05.
Assessment postings were noted by A/CC on 14 Aug.   -   References: MPEC 2018-P104
2018 PG21NEODyS1935 Aug. 172107-211658.41e-08-4.48-4.650Based on 15 optical observations (of which 0 are rejected as outliers) from 2018-08-08.552 to 2018-08-16.479.
JPL Sentry1530 Aug. 172098-2115101.255974e-07-4.38-4.810Computed at 08:07 Aug. 17th Pacific time based on 15 observations spanning 7.9270 days (2018-Aug-08.55164 to 2018-Aug-16.478612). Diameter approximately 0.480 km. from weighted mean H=19.26.
Assessment postings were noted by A/CC on 14 Aug. & 17 Aug.   -   References: MPEC 2018-P101 plus DOU 2018-Q23
2018 PJ20NEODyS1500 Aug. 142058-209326.83e-08-8.33-8.440Based on 9 optical observations (of which 0 are rejected as outliers) from 2018-08-08.403 to 2018-08-10.491.
JPL Sentry0400 Aug. 142093-211721.5591e-07-8.05-8.180Computed at 19:28 Aug. 13th Pacific time based on 9 observations spanning 2.0883 days (2018-Aug-08.40194 to 2018-Aug-10.490243). Diameter approximately 0.013 km. from weighted mean H=27.13.
Assessment postings were noted by A/CC on 14 Aug.   -   References: MPEC 2018-P90
2018 PY7NEODyS2134 Aug. 122096-2118334.66e-05-5.52-6.01n/aBased on 28 optical observations (of which 0 are rejected as outliers) from 2018-08-05.562 to 2018-08-11.466.
JPL Sentry1600 Aug. 122097-2115162.971994e-05-5.68-6.100Computed at 08:09 Aug. 12th Pacific time based on 28 observations spanning 5.9037 days (2018-Aug-05.56103 to 2018-Aug-11.464702). Diameter approximately 0.015 km. from weighted mean H=26.77.
Assessment postings were noted by A/CC on 8 Aug., 9 Aug., 10 Aug., 11 Aug. & 12 Aug.   -   References: MPEC 2018-P24 plus DOUs 2018-P32, 2018-P40, 2018-P54 & 2018-P68
2018 PR7NEODyS1935 Aug. 172097-211754.49e-08-9.47-9.510Based on 55 optical observations (of which 0 are rejected as outliers) from 2018-08-06.267 to 2018-08-14.408.
JPL Sentry1530 Aug. 172097-209714.237e-09-10.50-10.50Computed at 07:49 Aug. 17th Pacific time based on 55 observations spanning 8.1407 days (2018-Aug-06.26605 to 2018-Aug-14.406722). Diameter approximately 0.007 km. from weighted mean H=28.53.
Assessment postings were noted by A/CC on 8 Aug., 9 Aug., 10 Aug., 11 Aug., 12 Aug. & 17 Aug.   -   References: MPEC 2018-P17 plus DOUs 2018-P32, 2018-P40, 2018-P54, 2018-P68 & 2018-Q23
2018 NLJPL Sentry1600 Aug. 122060-210895.91483e-05-4.49-4.720Computed at 07:56 Aug. 12th Pacific time based on 33 observations spanning 39.157 days (2018-Jul-03.40294 to 2018-Aug-11.560068). Diameter approximately 0.029 km. from weighted mean H=25.37.
NEODyS1709 Aug. 112060-2114161.53e-04-4.04-4.060Based on 30 optical observations (of which 0 are rejected as outliers) from 2018-07-03.404 to 2018-08-10.604.
Assessment postings were noted by A/CC on 17 July, 18 July, 22 July, 24 July, 25 July, 2 Aug., 11 Aug. & 12 Aug.   -   References: DOUs 2018-O06, 2018-O36, 2018-O39, 2018-P03, 2018-P54 & 2018-P68
2018 NJNEODyS1502 July 182082-2118622.45e-03-4.27-4.28-Based on 32 optical observations (of which 1 are rejected as outliers) from 2018-07-05.276 to 2018-07-15.612.
An assessment posting was noted by A/CC on 18 July   -   References: no MPECs
2018 MC7NEODyS2134 Aug. 122060-2117884.31e-03-3.08-3.540Based on 47 optical observations (of which 1 are rejected as outliers) from 2018-06-21.395 to 2018-08-11.498.
JPL Sentry1600 Aug. 122060-2114270.00259527204-3.26-3.270Computed at 07:56 Aug. 12th Pacific time based on 45 observations spanning 51.103 days (2018-Jun-21.39443 to 2018-Aug-11.497641). Diameter approximately 0.020 km. from weighted mean H=26.16.
Assessment postings were noted by A/CC on 17 July, 18 July, 23 July, 24 July, 25 July, 8 Aug. & 12 Aug.   -   References: DOUs 2018-O06, 2018-O37, 2018-O39, 2018-P25 & 2018-P68
2018 MC5NEODyS2134 Aug. 122112-211721.23e-07-7.57-7.640Based on 52 optical observations (of which 0 are rejected as outliers) from 2018-06-12.476 to 2018-08-11.615.
Assessment postings were noted by A/CC on 18 July & 12 Aug.   -   References: DOU 2018-P68
2014 HG196JPL Sentry1800 Aug. 132019-21173319.763522e-07-6.45-7.440Computed 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 13 Aug.   -   References: no recent MPECs
C   L   E   A   R   E   D
2018 PP10NEODyS1935 Aug. 17R E M O V E D
Assessment postings were noted by A/CC on 12 Aug. & 17 Aug.   -   References: MPEC 2018-P61 plus DOU 2018-Q23
2018 PG9NEODyS2134 Aug. 12R E M O V E D
JPL Sentry1600 Aug. 12R E M O V E DRisk listing removed at 1516 UTC Aug. 12th
Assessment postings were noted by A/CC on 10 Aug. & 12 Aug.   -   References: MPEC 2018-P42 plus DOUs 2018-P68 & 2018-P97
2018 PD9NEODyS1900 Aug. 15R E M O V E D
Assessment postings were noted by A/CC on 12 Aug. & 15 Aug.   -   References: MPEC 2018-P39 plus DOUs 2018-P68 & 2018-P108
2018 PF8JPL Sentry2104 Aug. 14R E M O V E DRisk listing removed at 2055 UTC Aug. 14th
NEODyS1600 Aug. 14R E M O V E D
Assessment postings were noted by A/CC on 8 Aug., 9 Aug., 10 Aug., 12 Aug. & 14 Aug.   -   References: MPEC 2018-P31 plus DOUs 2018-P40, 2018-P68 & 2018-P97
2018 OMNEODyS1930 July 23R E M O V E D
JPL Sentry1818 July 22R E M O V E DRisk listing removed at 1415 UTC July 22nd
Assessment postings were noted by A/CC on 19 July, 20 July, 22 July & 23 July   -   References: MPEC 2018-O27 plus DOUs 2018-O28, 2018-O29, 2018-O36 & 2018-O37
2018 LANEODyS1427 July 25R E M O V E D
An assessment posting was noted by A/CC on 25 July   -   References: DOU 2018-O23
2018 JG1NEODyS2134 Aug. 12R E M O V E D
Assessment postings were noted by A/CC on 22 July & 12 Aug.   -   References: DOUs 2018-O36 & 2018-P68
2017 OM1NEODyS2207 July 29R E M O V E D
JPL Sentry1300 July 28R E M O V E DRisk listing removed at 0137 UTC July 28th
Assessment postings were noted by A/CC on 19 July, 28 July & 29 July   -   References: MPEC 2018-O48

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.


http://www.HohmannTransfer.com/crt.htm
Publisher information, privacy statement, and disclaimer.
Please report broken links or other problems with this page to <webmaster@hohmanntransfer.com>.
The data and tabular formats on this page are acknowledged as belonging to JPL and NEODyS.
This page is © Copyright 2003-2018 Columbine of Maine - All Rights Reserved
Do NOT copy or mirror this page, but please do link to it. All information here is subject to very frequent (and sometimes critically important) change.
Individuals may make "snapshot" copies for their own private non-commercial use.
CRT updates are flagged by A/CC's RSS news feed (link)