A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted in the Last 31 Days

Compiled at 1741 UTC on 17 February 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 CNNEODyS1702 Feb. 9208213.28e-08-8.04-8.040Based on 40 optical observations (of which 2 are rejected as outliers) from 2018-02-05.350 to 2018-02-07.120.
An assessment posting was noted by A/CC on 9 Feb.   -   References: MPEC 2018-C21 plus DOU 2018-C26
2018 CMNEODyS1702 Feb. 92042-2117127.54e-05-5.59-5.610Based on 31 optical observations (of which 1 are rejected as outliers) from 2018-02-05.332 to 2018-02-05.975.
JPL Sentry0305 Feb. 62063-211790.00011795148-5.39-5.410Computed at 18:55 Feb. 5th Pacific time based on 30 observations spanning .64350 days (2018-Feb-05.33111 to 2018-Feb-05.97461). Diameter approximately 0.009 km. from weighted mean H=27.82.
Assessment postings were noted by A/CC on 6 Feb. & 9 Feb.   -   References: MPEC 2018-C22
2018 CKNEODyS1741 Feb. 172070-208846.61e-08-7.82-7.980Based on 35 optical observations (of which 2 are rejected as outliers) from 2018-02-04.421 to 2018-02-16.261.
JPL Sentry1700 Feb. 172070-207225.1417e-08-7.90-7.940Computed at 07:56 Feb. 17th Pacific time based on 35 observations spanning 11.840 days (2018-Feb-04.42012 to 2018-Feb-16.25993). Diameter approximately 0.018 km. from weighted mean H=26.39.
Assessment postings were noted by A/CC on 6 Feb., 8 Feb., 9 Feb., 10 Feb., 12 Feb., 16 Feb. & 17 Feb.   -   References: MPEC 2018-C20 plus DOUs 2018-C42, 2018-C46, 2018-C48, 2018-D01 & 2018-D18
2018 BL11JPL Sentry1700 Feb. 172091-2118406.50603484e-05-6.06-6.850Computed at 08:01 Feb. 17th Pacific time based on 20 observations spanning 1.1276 days (2018-Jan-24.2988 to 2018-Jan-25.42644). Diameter approximately 0.007 km. from weighted mean H=28.31.
An assessment posting was noted by A/CC on 17 Feb.   -   References: DOU 2018-D18
2018 BQ6NEODyS1610 Feb. 22059-207831.69e-08-8.97-9.20Based on 34 optical observations (of which 3 are rejected as outliers) from 2018-01-27.354 to 2018-01-30.522.
An assessment posting was noted by A/CC on 2 Feb.   -   References: MPEC 2018-B164 plus DOU 2018-C02
2018 BP6NEODyS1704 Feb. 162074-211533.0e-07-6.52-6.560Based on 66 optical observations (of which 11 are rejected as outliers) from 2018-01-27.354 to 2018-02-06.457.
JPL Sentry1620 Feb. 152074-207417.320e-08-6.90-6.900Computed at 07:55 Feb. 15th Pacific time based on 66 observations spanning 10.103 days (2018-Jan-27.35282 to 2018-Feb-06.45574). Diameter approximately 0.042 km. from weighted mean H=24.56.
Assessment postings were noted by A/CC on 30 Jan., 1 Feb., 2 Feb., 3 Feb., 4 Feb., 5 Feb., 6 Feb., 9 Feb., 15 Feb. & 16 Feb.   -   References: MPEC 2018-B161 plus DOUs 2018-C02, 2018-C05, 2018-C07, 2018-C17, 2018-C24 & 2018-C106
2018 BN6NEODyS1620 Feb. 152077-2117612.94e-05-5.62-5.770Based on 48 optical observations (of which 3 are rejected as outliers) from 2018-01-27.195 to 2018-02-13.393.
JPL Sentry1614 Feb. 142077-2117221.89797e-05-5.81-6.010Computed at 08:12 Feb. 14th Pacific time based on 48 observations spanning 17.199 days (2018-Jan-27.19371 to 2018-Feb-13.392345). Diameter approximately 0.015 km. from weighted mean H=26.78.
Assessment postings were noted by A/CC on 28 Jan., 29 Jan., 4 Feb., 5 Feb., 9 Feb., 10 Feb., 14 Feb. & 15 Feb.   -   References: MPEC 2018-B152 plus DOUs 2018-C07, 2018-C17 & 2018-C104
2018 BX5NEODyS1706 Jan. 282084-2117301.85e-06-7.98-8.580Based on 26 optical observations (of which 0 are rejected as outliers) from 2018-01-22.475 to 2018-01-25.354.
JPL Sentry2030 Jan. 262090-211591.26875e-06-8.16-8.730Computed at 12:13 Jan. 26th Pacific time based on 26 observations spanning 2.8793 days (2018-Jan-22.47374 to 2018-Jan-25.353). Diameter approximately 0.005 km. from weighted mean H=28.97.
Assessment postings were noted by A/CC on 26 Jan. & 28 Jan.   -   References: MPEC 2018-B138
2018 BP3NEODyS1700 Jan. 29211515.43e-07-8.48-8.480Based on 41 optical observations (of which 1 are rejected as outliers) from 2018-01-22.361 to 2018-01-28.470.
JPL Sentry1706 Jan. 282115-211514.842e-07-8.53-8.530Computed at 08:48 Jan. 28th Pacific time based on 41 observations spanning 6.1096 days (2018-Jan-22.36003 to 2018-Jan-28.46965). Diameter approximately 0.006 km. from weighted mean H=28.72.
Assessment postings were noted by A/CC on 23 Jan., 24 Jan., 25 Jan., 27 Jan., 28 Jan. & 29 Jan.   -   References: MPEC 2018-B106 plus DOUs 2018-B115, 2018-B142 & 2018-B144
2018 BH1NEODyS1712 Jan. 252062-211761.06e-07-7.11-7.390Based on 16 optical observations (of which 0 are rejected as outliers) from 2018-01-16.351 to 2018-01-24.504.
JPL Sentry1700 Jan. 21R E M O V E DRisk listing removed at 1635 UTC Jan. 21st
Assessment postings were noted by A/CC on 20 Jan., 21 Jan., 22 Jan., 23 Jan. & 25 Jan.   -   References: MPEC 2018-B73 plus DOUs 2018-B81, 2018-B90 & 2018-B113
2018 BDJPL Sentry1700 Jan. 212032-209286.197614e-05-6.23-6.230Computed at 08:58 Jan. 21st Pacific time based on 30 observations spanning .23350 days (2018-Jan-18.27721 to 2018-Jan-18.51071). Diameter approximately 0.003 km. from weighted mean H=30.16.
Assessment postings were noted by A/CC on 18 Jan. & 21 Jan.   -   References: MPEC 2018-B36 plus DOU 2018-B81
2018 BCNEODyS1702 Feb. 92082-2113275.0e-05-6.87-7.260Based on 59 optical observations (of which 1 are rejected as outliers) from 2018-01-17.211 to 2018-01-20.504.
JPL Sentry1700 Jan. 312083-2109225.4274e-05-6.84-7.710Computed at 08:12 Jan. 31st Pacific time based on 59 observations spanning 3.2932 days (2018-Jan-17.21005 to 2018-Jan-20.503299). Diameter approximately 0.004 km. from weighted mean H=29.44.
Assessment postings were noted by A/CC on 18 Jan., 19 Jan., 20 Jan., 22 Jan., 23 Jan., 31 Jan., 1 Feb. & 9 Feb.   -   References: MPEC 2018-B34 plus DOUs 2018-B35, 2018-B51, 2018-B76, 2018-B90 & 2018-B167
2018 AB12NEODyS1620 Feb. 152088-211723.29e-09-8.52-8.630Based on 65 optical observations (of which 0 are rejected as outliers) from 2018-01-14.378 to 2018-02-13.384.
JPL Sentry1638 Jan. 19R E M O V E DRisk listing removed at 1622 UTC Jan. 19th
Assessment postings were noted by A/CC on 17 Jan., 18 Jan., 19 Jan., 20 Jan., 21 Jan., 24 Jan., 25 Jan., 29 Jan., 5 Feb., 9 Feb. & 15 Feb.   -   References: DOUs 2018-B35, 2018-B51, 2018-B76, 2018-B90, 2018-B99, 2018-B113, 2018-B115, 2018-B144, 2018-C07, 2018-C17, 2018-C42 & 2018-C104
2018 AT2NEODyS1600 Jan. 18211611.12e-08-9.71-9.710Based on 30 optical observations (of which 9 are rejected as outliers) from 2018-01-12.335 to 2018-01-17.078.
JPL Sentry1630 Jan. 172115-211511.998e-07-8.44-8.440Computed at 07:59 Jan. 17th Pacific time based on 27 observations spanning 4.7362 days (2018-Jan-12.34078 to 2018-Jan-17.077029). Diameter approximately 0.010 km. from weighted mean H=27.74.
Assessment postings were noted by A/CC on 17 Jan. & 18 Jan.   -   References: DOU 2018-B16
2017 YM14JPL Sentry1650 Jan. 202056-207453.89753e-07-7.59-7.770Computed at 07:54 Jan. 20th Pacific time based on 15 observations spanning .97623 days (2017-Dec-28.27627 to 2017-Dec-29.2525). Diameter approximately 0.009 km. from weighted mean H=27.75.
An assessment posting was noted by A/CC on 20 Jan.   -   References: DOU 2018-B76
2017 YK14JPL Sentry1908 Jan. 202075-207511.718e-10-11.60-11.60Computed at 10:23 Jan. 20th Pacific time based on 11 observations spanning .14126 days (2017-Dec-25.369 to 2017-Dec-25.51026). Diameter approximately 0.008 km. from weighted mean H=28.21.
An assessment posting was noted by A/CC on 20 Jan.   -   References: DOU 2018-B76
2017 YV8NEODyS0750 Feb. 102061-2116473.91e-05-5.88-6.040Based on 17 optical observations (of which 1 are rejected as outliers) from 2017-12-22.423 to 2018-01-05.261.
JPL Sentry1702 Feb. 92082-2117302.537616e-05-6.08-6.520Computed at 08:23 Feb. 9th Pacific time based on 17 observations spanning 13.838 days (2017-Dec-22.42245 to 2018-Jan-05.260158). Diameter approximately 0.011 km. from weighted mean H=27.37.
Assessment postings were noted by A/CC on 17 Jan., 9 Feb. & 10 Feb.   -   References: DOU 2018-C46
2017 YE8NEODyS0307 Feb. 5R E M O V E D
JPL Sentry1732 Feb. 42112-211215.217e-08-7.74-7.740Computed at 09:04 Feb. 4th Pacific time based on 24 observations spanning 17.125 days (2017-Dec-29.28539 to 2018-Jan-15.410791). Diameter approximately 0.027 km. from weighted mean H=25.53.
Assessment postings were noted by A/CC on 4 Feb. & 5 Feb.   -   References: DOU 2018-C07
2017 WT28NEODyS1700 Feb. 122080-21161204.17e-04-5.27-5.620Based on 24 optical observations (of which 0 are rejected as outliers) from 2017-11-28.291 to 2017-12-16.266.
JPL Sentry1900 Feb. 82081-2117600.003655702011-4.37-4.470Computed at 10:29 Feb. 8th Pacific time based on 24 observations spanning 17.975 days (2017-Nov-28.29053 to 2017-Dec-16.265521). Diameter approximately 0.008 km. from weighted mean H=28.10.
Assessment postings were noted by A/CC on 5 Feb., 8 Feb., 9 Feb., 10 Feb. & 12 Feb.   -   References: DOU 2018-C17
2017 USNEODyS1650 Jan. 232085-2115165.67e-04-4.19-4.20Based on 121 optical observations (of which 4 are rejected as outliers) from 2017-10-16.346 to 2017-11-13.062.
JPL Sentry1630 Jan. 182085-2115160.0013110929846-3.77-4.120Computed at 08:22 Jan. 18th Pacific time based on 120 observations spanning 27.716 days (2017-Oct-16.34512 to 2017-Nov-13.06145). Diameter approximately 0.022 km. from weighted mean H=25.98.
Assessment postings were noted by A/CC on 18 Jan. & 23 Jan.   -   References: DOU 2018-B35
2017 TD6NEODyS1700 Feb. 122081-209122.71e-08-8.82-8.950Based on 96 optical observations (of which 0 are rejected as outliers) from 2017-10-11.413 to 2017-10-19.529.
JPL Sentry1902 Feb. 102081-208113.521e-08-8.69-8.690Computed at 10:30 Feb. 10th Pacific time based on 96 observations spanning 8.1160 days (2017-Oct-11.41171 to 2017-Oct-19.527745). Diameter approximately 0.012 km. from weighted mean H=27.18.
Assessment postings were noted by A/CC on 10 Feb. & 12 Feb.   -   References: DOU 2018-C48
2017 RZ17JPL Sentry1707 Feb. 82019-2116452.81661e-08-4.07-4.270Computed at 08:24 Feb. 8th Pacific time based on 7 observations spanning .95897 days (2017-Sep-15.36641 to 2017-Sep-16.32538). Diameter approximately 0.371 km. from weighted mean H=19.80.
An assessment posting was noted by A/CC on 8 Feb.   -   References: DOU 2018-C42
2017 LDNEODyS1620 Feb. 152045-21175821.88e-03-4.24-4.960Based on 101 optical observations (of which 5 are rejected as outliers) from 2017-05-16.299 to 2017-06-30.357.
JPL Sentry1737 Feb. 102053-21172150.0019962835135-4.23-4.760Computed at 09:14 Feb. 10th Pacific time based on 101 observations spanning 45.058 days (2017-May-16.298488 to 2017-Jun-30.356014). Diameter approximately 0.011 km. from weighted mean H=27.54.
Assessment postings were noted by A/CC on 10 Feb. & 15 Feb.   -   References: DOU 2018-C48
2017 FB1JPL Sentry1709 Feb. 32098-210632.92563e-07-5.69-5.970Computed at 07:55 Feb. 3rd Pacific time based on 49 observations spanning 36.957 days (2017-Mar-18.20739 to 2017-Apr-24.163996). Diameter approximately 0.071 km. from weighted mean H=23.39.
NEODyS1709 Feb. 32092-210667.16e-07-5.32-5.540Based on 49 optical observations (of which 0 are rejected as outliers) from 2017-03-18.208 to 2017-04-24.165.
Assessment postings were noted by A/CC on 3 Feb.   -   References: DOU 2018-C05
2016 WGNEODyS1700 Feb. 122076-2115436.47e-06-4.28-4.920Based on 137 optical observations (of which 13 are rejected as outliers) from 2016-11-11.310 to 2016-11-25.873.
JPL Sentry1737 Feb. 102076-2115243.504234e-06-4.47-5.320Computed at 09:27 Feb. 10th Pacific time based on 128 observations spanning 14.121 days (2016-Nov-11.30959 to 2016-Nov-25.43035). Diameter approximately 0.074 km. from weighted mean H=23.30.
Assessment postings were noted by A/CC on 10 Feb. & 12 Feb.   -   References: DOU 2018-C48
2016 RD34NEODyS1620 Feb. 152051-21162394.83e-04-4.65-5.00Based on 84 optical observations (of which 7 are rejected as outliers) from 2016-09-11.431 to 2016-12-22.326.
JPL Sentry1737 Feb. 102051-2092340.0012406995-4.10-4.410Computed at 09:18 Feb. 10th Pacific time based on 81 observations spanning 101.90 days (2016-Sep-11.42997 to 2016-Dec-22.325591) including radar (1 Doppler).. Diameter approximately 0.012 km. from weighted mean H=27.27.
Assessment postings were noted by A/CC on 10 Feb. & 15 Feb.   -   References: DOU 2018-C48
2016 JY5JPL Sentry1830 Feb. 102093-210734.7161e-08-8.75-9.100Computed at 10:08 Feb. 10th Pacific time based on 58 observations spanning 5.9547 days (2016-May-04.25836 to 2016-May-10.21309). Diameter approximately 0.013 km. from weighted mean H=27.12.
An assessment posting was noted by A/CC on 10 Feb.   -   References: DOU 2018-C48
2015 WN1NEODyS1700 Feb. 122051-21161008.19e-05-4.97-5.290Based on 45 optical observations (of which 7 are rejected as outliers) from 2015-11-18.300 to 2015-12-04.297.
JPL Sentry1737 Feb. 102053-2116740.0001073340955-4.82-5.560Computed at 09:05 Feb. 10th Pacific time based on 42 observations spanning 15.992 days (2015-Nov-18.29924 to 2015-Dec-04.29106). Diameter approximately 0.018 km. from weighted mean H=26.33.
Assessment postings were noted by A/CC on 10 Feb. & 12 Feb.   -   References: DOU 2018-C48
2013 HT150NEODyS1700 Feb. 122039-2116661.17e-05-5.18-5.510Based on 16 optical observations (of which 0 are rejected as outliers) from 2013-04-16.337 to 2013-04-19.208.
JPL Sentry1700 Feb. 102052-2115811.82737082e-05-4.96-5.620Computed at 08:29 Feb. 10th Pacific time based on 16 observations spanning 2.8706 days (2013-Apr-16.3367 to 2013-Apr-19.2073). Diameter approximately 0.028 km. from weighted mean H=25.37.
Assessment postings were noted by A/CC on 10 Feb. & 12 Feb.   -   References: DOU 2018-C48
2012 VS76NEODyS1700 Feb. 122081-2115116.12e-06-6.43-6.580Based on 65 optical observations (of which 5 are rejected as outliers) from 2012-11-13.362 to 2012-11-16.294.
JPL Sentry1700 Feb. 102080-211491.8087606e-05-5.82-6.180Computed at 08:23 Feb. 10th Pacific time based on 61 observations spanning 2.9316 days (2012-Nov-13.36169 to 2012-Nov-16.293249). Diameter approximately 0.014 km. from weighted mean H=26.94.
Assessment postings were noted by A/CC on 10 Feb. & 12 Feb.   -   References: DOU 2018-C48
2011 OB26NEODyS1700 Feb. 122090-2117734.7e-05-4.90-5.120Based on 30 optical observations (of which 2 are rejected as outliers) from 2011-07-28.474 to 2011-08-07.523.
JPL Sentry1700 Feb. 102095-2117465.9022484e-05-4.77-5.330Computed at 08:10 Feb. 10th Pacific time based on 30 observations spanning 10.049 days (2011-Jul-28.4734 to 2011-Aug-07.52249). Diameter approximately 0.026 km. from weighted mean H=25.54.
Assessment postings were noted by A/CC on 10 Feb. & 12 Feb.   -   References: DOU 2018-C48
2011 CF66JPL Sentry1704 Feb. 162018-21178331.42111809e-05-6.01-7.220Computed at 03:11 April 7th of 2017 Pacific time based on 11 observations spanning .17761 days (2011-Feb-13.33976 to 2011-Feb-13.51737). Diameter approximately 0.009 km. from weighted mean H=27.83.
Assessment postings were noted by A/CC on 1 Feb. & 16 Feb.   -   References: no recent MPECs
2010 XCJPL Sentry1640 Jan. 242018-21113292.9999066e-06-7.27-7.910Computed at 07:23 April 7th of 2017 Pacific time based on 8 observations spanning .05836 days (2010-Dec-01.30659 to 2010-Dec-01.36495). Diameter approximately 0.005 km. from weighted mean H=29.11.
An assessment posting was noted by A/CC on 24 Jan.   -   References: no recent MPECs
2008 EL68JPL Sentry1900 Feb. 112018-21136123.32743089e-05-5.25-6.010Computed at 11:57 April 9th of 2017 Pacific time based on 8 observations spanning .07124 days (2008-Mar-06.40768 to 2008-Mar-06.47892). Diameter approximately 0.009 km. from weighted mean H=27.92.
An assessment posting was noted by A/CC on 11 Feb.   -   References: no recent MPECs
2006 UJ185JPL Sentry0132 Feb. 62052-211682.136442e-06-7.17-7.530Computed at 17:07 Feb. 5th Pacific time based on 39 observations spanning 1.1546 days (2006-Oct-28.28933 to 2006-Oct-29.44394). Diameter approximately 0.009 km. from weighted mean H=27.89.
An assessment posting was noted by A/CC on 6 Feb.   -   References: no recent MPECs
C   L   E   A   R   E   D
2018 CBJPL Sentry2215 Feb. 6R E M O V E DRisk listing removed at 2205 UTC Feb. 6th
Assessment postings were noted by A/CC on 4 Feb., 5 Feb. & 6 Feb.   -   References: MPECs 2018-C12, 2018-C25, 2018-C44 & 2018-C47 plus DOUs 2018-C17, 2018-C24, 2018-C26, 2018-C42, 2018-C46, 2018-C48 & 2018-C106, radar: 7 Feb. & 9 Feb.
2018 BD6JPL Sentry1610 Feb. 2R E M O V E DRisk listing removed at 1551 UTC Feb. 2nd
Assessment postings were noted by A/CC on 28 Jan. & 2 Feb.   -   References: MPEC 2018-B146 plus DOUs 2018-C02 & 2018-C26
2018 BM3JPL Sentry1712 Jan. 25R E M O V E DRisk listing removed at 1657 UTC Jan. 25th
Assessment postings were noted by A/CC on 23 Jan. & 25 Jan.   -   References: MPEC 2018-B103 plus DOUs 2018-B115, 2018-B142, 2018-B158, 2018-C07 & 2018-C98
2018 BO1JPL Sentry1700 Jan. 22R E M O V E DRisk listing removed at 1556 UTC Jan. 22nd
Assessment postings were noted by A/CC on 20 Jan. & 22 Jan.   -   References: MPEC 2018-B65 plus DOUs 2018-B90, 2018-B137, 2018-B144 & 2018-C42
2018 BL1NEODyS1712 Jan. 25R E M O V E D
JPL Sentry1650 Jan. 23R E M O V E DRisk listing removed at 1634 UTC Jan. 23rd
Assessment postings were noted by A/CC on 20 Jan., 21 Jan., 22 Jan., 23 Jan., 24 Jan. & 25 Jan.   -   References: MPEC 2018-B62 plus DOUs 2018-B76, 2018-B90, 2018-B99, 2018-B113, 2018-B115, 2018-B142, 2018-B144, 2018-C07, 2018-C24, 2018-C42, 2018-C46 & 2018-C48
2018 BPJPL Sentry1800 Feb. 4R E M O V E DRisk listing removed at 1739 UTC Feb. 4th
NEODyS2136 Jan. 28R E M O V E D
Assessment postings were noted by A/CC on 18 Jan., 19 Jan., 20 Jan., 21 Jan., 22 Jan., 23 Jan., 24 Jan., 25 Jan., 28 Jan., 29 Jan. & 4 Feb.   -   References: MPEC 2018-B41 plus DOUs 2018-B76, 2018-B81, 2018-B90, 2018-B99, 2018-B113, 2018-B144, 2018-B158, 2018-C07, 2018-C17, 2018-C24, 2018-C26, 2018-C42 & 2018-C78
2018 AL12NEODyS1732 Jan. 24R E M O V E D
Assessment postings were noted by A/CC on 21 Jan. & 24 Jan.   -   References: MPEC 2018-B26 plus DOUs 2018-B76, 2018-B113, 2018-B115 & 2018-C48
2018 AE4JPL Sentry1702 Feb. 9R E M O V E DRisk listing removed at 1552 UTC Feb. 9th
NEODyS1702 Feb. 9R E M O V E D
Assessment postings were noted by A/CC on 17 Jan., 19 Jan., 21 Jan., 23 Jan., 28 Jan., 29 Jan., 4 Feb., 5 Feb. & 9 Feb.   -   References: DOUs 2018-B35, 2018-B76, 2018-B90, 2018-B99, 2018-B113, 2018-B115, 2018-B144, 2018-C07 & 2018-C46
2018 AE3JPL Sentry1650 Jan. 23R E M O V E DRisk listing removed at 1551 UTC Jan. 23rd
An assessment posting was noted by A/CC on 23 Jan.   -   References: DOUs 2018-B99 & 2018-C98
2018 AE2NEODyS1732 Jan. 24R E M O V E D
JPL Sentry1640 Jan. 24R E M O V E DRisk listing removed at 1553 UTC Jan. 24th
Assessment postings were noted by A/CC on 17 Jan., 18 Jan., 19 Jan. & 24 Jan.   -   References: DOUs 2018-B16, 2018-B35, 2018-B113, 2018-B142, 2018-B144, 2018-C01, 2018-C17, 2018-C24, 2018-C26, 2018-C48, 2018-C79 & 2018-C104
2018 ATJPL Sentry1630 Jan. 17R E M O V E DRisk listing removed at 1556 UTC Jan. 17th
An assessment posting was noted by A/CC on 17 Jan.   -   References: DOUs 2018-B16, 2018-B158, 2018-C07 & 2018-C104
2017 YZ1JPL Sentry1800 Jan. 18R E M O V E DRisk listing removed at 1735 UTC Jan. 18th
Assessment postings were noted by A/CC on 17 Jan. & 18 Jan.   -   References: DOUs 2018-B16, 2018-B35, 2018-B99 & 2018-C79
2017 XS2JPL Sentry1706 Jan. 28R E M O V E DRisk listing removed at 1605 UTC Jan. 28th
An assessment posting was noted by A/CC on 28 Jan.   -   References: DOU 2018-B144
2017 XO2NEODyS1706 Jan. 28R E M O V E D
JPL Sentry0023 Jan. 28R E M O V E DRisk listing removed at 0018 UTC Jan. 28th
Assessment postings were noted by A/CC on 20 Jan., 21 Jan. & 28 Jan.   -   References: MPEC 2018-B143 plus DOUs 2018-B76 & 2018-B144
2017 UR51JPL Sentry1650 Jan. 23R E M O V E DRisk listing removed at 1556 UTC Jan. 23rd
An assessment posting was noted by A/CC on 23 Jan.   -   References: DOU 2018-B99
2015 XQ129NEODyS1700 Feb. 12R E M O V E D
JPL Sentry1700 Feb. 10R E M O V E DRisk listing removed at 1647 UTC Feb. 10th
Assessment postings were noted by A/CC on 10 Feb. & 12 Feb.   -   References: DOU 2018-C48
2010 KJ37JPL Sentry1700 Feb. 10R E M O V E DRisk listing removed at 1620 UTC Feb. 10th
An assessment posting was noted by A/CC on 10 Feb.   -   References: DOU 2018-C48
2002 CB19NEODyS1714 Feb. 7R E M O V E D
JPL Sentry0307 Feb. 5R E M O V E DRisk listing removed at 0041 UTC Feb. 5th
Assessment postings were noted by A/CC on 5 Feb. & 7 Feb.   -   References: MPEC 2018-C16 plus DOU 2018-C17

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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