A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted in the Last 31 Days

Compiled at 1632 UTC on 21 October 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 UL1NEODyS1632 Oct. 21211011.13e-10-9.99-9.990Based on 21 optical observations (of which 1 are rejected as outliers) from 2017-10-16.390 to 2017-10-21.341.
JPL Sentry1502 Oct. 21R E M O V E DRisk listing removed at 1447 UTC Oct. 21st
Assessment postings were noted by A/CC on 19 Oct., 20 Oct. & 21 Oct.   -   References: MPEC 2017-U79 plus DOU 2017-U153
2017 UK1NEODyS1456 Oct. 202066-2117334.06e-04-4.46-4.470Based on 17 optical observations (of which 4 are rejected as outliers) from 2017-10-16.366 to 2017-10-19.458.
JPL Sentry1930 Oct. 192047-2114150.000247225127-4.68-4.700Computed at 12:09 Oct. 19th Pacific time based on 17 observations spanning 3.0923 days (2017-Oct-16.36473 to 2017-Oct-19.45706). Diameter approximately 0.014 km. from weighted mean H=26.95.
Assessment postings were noted by A/CC on 19 Oct. & 20 Oct.   -   References: MPEC 2017-U78
2017 UZJPL Sentry1700 Oct. 192113-211317.918e-08-7.87-7.870Computed at 09:47 Oct. 19th Pacific time based on 17 observations spanning 1.9911 days (2017-Oct-16.23157 to 2017-Oct-18.222629). Diameter approximately 0.020 km. from weighted mean H=26.11.
An assessment posting was noted by A/CC on 19 Oct.   -   References: MPEC 2017-U69
2017 USJPL Sentry1701 Oct. 202070-2117240.00031535394-4.32-4.710Computed at 09:47 Oct. 20th Pacific time based on 74 observations spanning 3.0811 days (2017-Oct-16.34512 to 2017-Oct-19.42621). Diameter approximately 0.023 km. from weighted mean H=25.84.
Assessment postings were noted by A/CC on 19 Oct. & 20 Oct.   -   References: MPEC 2017-U61 plus DOU 2017-U151
2017 UFNEODyS1502 Oct. 212050-206626.08e-08-8.24-8.320Based on 26 optical observations (of which 6 are rejected as outliers) from 2017-10-16.262 to 2017-10-19.260.
JPL Sentry1542 Oct. 202066-208221.8096e-07-7.87-8.100Computed at 08:29 Oct. 20th Pacific time based on 26 observations spanning 2.9981 days (2017-Oct-16.26082 to 2017-Oct-19.258919). Diameter approximately 0.009 km. from weighted mean H=27.88.
Assessment postings were noted by A/CC on 17 Oct., 18 Oct., 19 Oct., 20 Oct. & 21 Oct.   -   References: MPEC 2017-U46 plus DOUs 2017-U50, 2017-U66 & 2017-U151
2017 TD6JPL Sentry1530 Oct. 21R E M O V E DRisk listing removed at 1506 UTC Oct. 21st
NEODyS1502 Oct. 21208116.5e-09-9.44-9.440Based on 79 optical observations (of which 1 are rejected as outliers) from 2017-10-11.413 to 2017-10-18.554.
Assessment postings were noted by A/CC on 17 Oct., 18 Oct., 19 Oct., 20 Oct. & 21 Oct.   -   References: MPEC 2017-U33 plus DOUs 2017-U50, 2017-U66, 2017-U151 & 2017-U153
2017 TA6NEODyS1502 Oct. 212075-2116136.65e-06-6.35-6.690Based on 34 optical observations (of which 1 are rejected as outliers) from 2017-10-15.438 to 2017-10-19.510.
JPL Sentry1605 Oct. 202049-2116430.0001507362902-5.10-5.380Computed at 08:51 Oct. 20th Pacific time based on 34 observations spanning 4.0724 days (2017-Oct-15.43676 to 2017-Oct-19.50912). Diameter approximately 0.016 km. from weighted mean H=26.67.
Assessment postings were noted by A/CC on 16 Oct., 18 Oct., 19 Oct., 20 Oct. & 21 Oct.   -   References: MPEC 2017-U27 plus DOUs 2017-U50, 2017-U66 & 2017-U151
2017 TW5NEODyS1456 Oct. 202064-211181.7e-07-7.67-7.940Based on 23 optical observations (of which 4 are rejected as outliers) from 2017-10-15.317 to 2017-10-17.093.
JPL Sentry1730 Oct. 182072-211554.70244e-06-6.30-6.380Computed at 08:42 Oct. 18th Pacific time based on 23 observations spanning 1.7751 days (2017-Oct-15.3166 to 2017-Oct-17.09174). Diameter approximately 0.013 km. from weighted mean H=27.06.
Assessment postings were noted by A/CC on 16 Oct., 18 Oct. & 20 Oct.   -   References: MPEC 2017-U24 plus DOU 2017-U50
2017 TA5NEODyS1501 Oct. 172080-2117357.43e-06-6.50-7.160Based on 17 optical observations (of which 5 are rejected as outliers) from 2017-10-13.241 to 2017-10-15.283.
JPL Sentry0530 Oct. 162081-2117179.354548e-06-6.38-6.920Computed at 20:57 Oct. 15th Pacific time based on 17 observations spanning 2.0424 days (2017-Oct-13.23998 to 2017-Oct-15.28234). Diameter approximately 0.012 km. from weighted mean H=27.25.
Assessment postings were noted by A/CC on 16 Oct. & 17 Oct.   -   References: MPEC 2017-U05
2017 TT3NEODyS1502 Oct. 212089-211422.28e-08-8.36-8.360Based on 26 optical observations (of which 1 are rejected as outliers) from 2017-10-10.438 to 2017-10-19.920.
JPL Sentry1605 Oct. 20R E M O V E DRisk listing removed at 1543 UTC Oct. 20th
Assessment postings were noted by A/CC on 15 Oct., 16 Oct., 17 Oct., 18 Oct., 20 Oct. & 21 Oct.   -   References: MPEC 2017-T69 plus DOUs 2017-U31, 2017-U50 & 2017-U151
2017 TP2NEODyS1456 Oct. 20209021.83e-09-8.68-8.930Based on 23 optical observations (of which 3 are rejected as outliers) from 2017-10-11.178 to 2017-10-17.846.
JPL Sentry1730 Oct. 182090-209019.454e-08-6.97-6.970Computed at 08:33 Oct. 18th Pacific time based on 23 observations spanning 6.6684 days (2017-Oct-11.17727 to 2017-Oct-17.845679). Diameter approximately 0.043 km. from weighted mean H=24.48.
Assessment postings were noted by A/CC on 12 Oct., 14 Oct., 18 Oct. & 20 Oct.   -   References: MPEC 2017-T58 plus DOU 2017-U50
2017 TU1NEODyS1550 Oct. 162076-211667.21e-08-8.02-8.290Based on 40 optical observations (of which 0 are rejected as outliers) from 2017-10-10.328 to 2017-10-12.907.
JPL Sentry1600 Oct. 142073-2116104.48161e-06-6.18-6.690Computed at 08:40 Oct. 14th Pacific time based on 40 observations spanning 2.5792 days (2017-Oct-10.32694 to 2017-Oct-12.90617). Diameter approximately 0.020 km. from weighted mean H=26.17.
Assessment postings were noted by A/CC on 11 Oct., 12 Oct., 13 Oct., 14 Oct. & 16 Oct.   -   References: MPEC 2017-T47 plus DOUs 2017-T49, 2017-T61 & 2017-T65
2017 TBNEODyS1530 Oct. 72053-21172405.85e-05-6.55-7.120Based on 30 optical observations (of which 0 are rejected as outliers) from 2017-10-03.338 to 2017-10-05.486.
JPL Sentry1830 Oct. 62054-2117545.06149892e-05-6.61-7.220Computed at 11:20 Oct. 6th Pacific time based on 30 observations spanning 2.1484 days (2017-Oct-03.33674 to 2017-Oct-05.48518). Diameter approximately 0.005 km. from weighted mean H=29.13.
Assessment postings were noted by A/CC on 6 Oct. & 7 Oct.   -   References: MPEC 2017-T19
2017 SM33NEODyS1612 Oct. 152021-2100224.2e-10-5.64-6.210Based on 6 optical observations (of which 0 are rejected as outliers) from 2017-09-28.429 to 2017-09-30.310.
An assessment posting was noted by A/CC on 15 Oct.   -   References: DOU 2017-T65
2017 SH33JPL Sentry1600 Oct. 142026-2116222.23231e-08-4.19-4.590Computed at 08:24 Oct. 14th Pacific time based on 11 observations spanning 1.2440 days (2017-Sep-25.49326 to 2017-Sep-26.73723). Diameter approximately 0.490 km. from weighted mean H=19.19.
An assessment posting was noted by A/CC on 14 Oct.   -   References: DOU 2017-T65
2017 SG33NEODyS1612 Oct. 15207014.12e-11-9.81-9.810Based on 6 optical observations (of which 0 are rejected as outliers) from 2017-09-25.381 to 2017-09-26.212.
JPL Sentry1521 Oct. 142051-210948.208e-10-8.46-8.860Computed at 08:06 Oct. 14th Pacific time based on 6 observations spanning .83078 days (2017-Sep-25.38015 to 2017-Sep-26.210934). Diameter approximately 0.055 km. from weighted mean H=23.94.
Assessment postings were noted by A/CC on 14 Oct. & 15 Oct.   -   References: DOU 2017-T65
2017 SE33NEODyS1612 Oct. 152058-209738.68e-08-8.47-8.540Based on 6 optical observations (of which 0 are rejected as outliers) from 2017-09-24.413 to 2017-09-25.515.
JPL Sentry1521 Oct. 142058-211681.229871e-07-8.40-8.810Computed at 07:50 Oct. 14th Pacific time based on 6 observations spanning 1.1022 days (2017-Sep-24.41185 to 2017-Sep-25.51408). Diameter approximately 0.009 km. from weighted mean H=27.76.
Assessment postings were noted by A/CC on 14 Oct. & 15 Oct.   -   References: DOU 2017-T65
2017 SD33NEODyS1612 Oct. 152050-209021.4e-10-7.17-7.280Based on 10 optical observations (of which 0 are rejected as outliers) from 2017-09-24.324 to 2017-09-26.985.
An assessment posting was noted by A/CC on 15 Oct.   -   References: DOU 2017-T65
2017 SC33JPL Sentry0530 Oct. 152024-202923.577e-10-6.37-6.500Computed at 21:54 Oct. 14th Pacific time based on 6 observations spanning 1.1080 days (2017-Sep-24.28597 to 2017-Sep-25.393956). Diameter approximately 0.210 km. from weighted mean H=21.05.
An assessment posting was noted by A/CC on 15 Oct.   -   References: DOU 2017-T65
2017 SB33JPL Sentry1630 Oct. 142049-204912.108e-10-8.75-8.750Computed at 08:41 Oct. 14th Pacific time based on 6 observations spanning 1.1101 days (2017-Sep-24.27114 to 2017-Sep-25.381248). Diameter approximately 0.056 km. from weighted mean H=23.92.
An assessment posting was noted by A/CC on 14 Oct.   -   References: DOU 2017-T65
2017 SA21JPL Sentry1501 Oct. 172056-205611.672e-07-8.32-8.320Computed at 07:51 Oct. 17th Pacific time based on 32 observations spanning 2.0206 days (2017-Sep-29.34186 to 2017-Oct-01.3625). Diameter approximately 0.007 km. from weighted mean H=28.32.
Assessment postings were noted by A/CC on 1 Oct. & 17 Oct.   -   References: MPEC 2017-T09 plus DOU 2017-U31
2017 SF20NEODyS1600 Oct. 62034-203634.27e-04-4.53-4.530Based on 26 optical observations (of which 2 are rejected as outliers) from 2017-09-28.368 to 2017-10-01.356.
JPL Sentry1535 Oct. 62034-203412.674e-04-4.74-4.740Computed at 07:51 Oct. 6th Pacific time based on 26 observations spanning 2.9882 days (2017-Sep-28.36701 to 2017-Oct-01.35517). Diameter approximately 0.007 km. from weighted mean H=28.32.
Assessment postings were noted by A/CC on 30 Sept., 1 Oct., 2 Oct. & 6 Oct.   -   References: MPEC 2017-S240 plus DOUs 2017-T01 & 2017-T17
2017 SA20NEODyS1456 Oct. 202027-211714527.44e-03-3.99-4.040Based on 24 optical observations (of which 3 are rejected as outliers) from 2017-09-24.415 to 2017-09-30.223.
JPL Sentry2101 Sept. 302027-21174710.0032971222092-4.34-4.390Computed at 13:49 Sept. 30th Pacific time based on 24 observations spanning 5.8082 days (2017-Sep-24.41378 to 2017-Sep-30.22201). Diameter approximately 0.008 km. from weighted mean H=28.22.
Assessment postings were noted by A/CC on 30 Sept., 3 Oct. & 20 Oct.   -   References: MPEC 2017-S236
2017 SU17NEODyS1501 Oct. 172053-2117784.1e-05-6.13-6.790Based on 31 optical observations (of which 2 are rejected as outliers) from 2017-09-26.445 to 2017-10-01.274.
JPL Sentry1550 Oct. 162069-2117342.797215e-05-6.30-6.840Computed at 08:44 Oct. 16th Pacific time based on 31 observations spanning 4.8292 days (2017-Sep-26.44444 to 2017-Oct-01.2736). Diameter approximately 0.008 km. from weighted mean H=28.01.
Assessment postings were noted by A/CC on 29 Sept., 30 Sept., 1 Oct., 2 Oct., 16 Oct. & 17 Oct.   -   References: MPEC 2017-S208 plus DOUs 2017-S212, 2017-T01 & 2017-U14
2017 SS12NEODyS1437 Oct. 32071-2117221.83e-06-6.98-7.390Based on 90 optical observations (of which 10 are rejected as outliers) from 2017-09-25.237 to 2017-10-02.158.
JPL Sentry2048 Oct. 22074-211371.67564e-06-7.01-7.420Computed at 08:04 Oct. 2nd Pacific time based on 87 observations spanning 6.9212 days (2017-Sep-25.23585 to 2017-Oct-02.15703). Diameter approximately 0.013 km. from weighted mean H=27.12.
Assessment postings were noted by A/CC on 26 Sept., 27 Sept., 28 Sept., 29 Sept., 30 Sept., 1 Oct., 2 Oct. & 3 Oct.   -   References: MPEC 2017-S152 plus DOUs 2017-S157, 2017-S212, 2017-T01 & 2017-T11
2017 SQ2NEODyS1437 Oct. 32054-209223.31e-07-7.13-7.160Based on 36 optical observations (of which 0 are rejected as outliers) from 2017-09-18.347 to 2017-10-01.295.
JPL Sentry2048 Oct. 22092-209211.620e-07-7.45-7.450Computed at 08:34 Oct. 2nd Pacific time based on 36 observations spanning 12.948 days (2017-Sep-18.34652 to 2017-Oct-01.294389). Diameter approximately 0.023 km. from weighted mean H=25.88.
Assessment postings were noted by A/CC on 20 Sept., 21 Sept., 27 Sept., 28 Sept., 29 Sept., 30 Sept., 2 Oct. & 3 Oct.   -   References: MPEC 2017-S84 plus DOUs 2017-S157, 2017-S212, 2017-T01 & 2017-T11
2017 RZ17NEODyS1500 Sept. 292019-21171341.63e-08-4.33-4.520Based on 6 optical observations (of which 0 are rejected as outliers) from 2017-09-15.367 to 2017-09-16.326.
JPL Sentry1601 Sept. 272019-2105502.03071e-08-4.14-4.360Computed at 08:49 Sept. 27th Pacific time based on 6 observations spanning .95897 days (2017-Sep-15.36641 to 2017-Sep-16.32538). Diameter approximately 0.372 km. from weighted mean H=19.80.
Assessment postings were noted by A/CC on 27 Sept. & 29 Sept.   -   References: DOU 2017-S157
2017 RX17NEODyS1500 Sept. 292029-2115131.77e-07-7.37-7.430Based on 6 optical observations (of which 0 are rejected as outliers) from 2017-09-14.411 to 2017-09-15.372.
JPL Sentry1534 Sept. 272029-2116433.328024e-07-7.28-8.020Computed at 08:11 Sept. 27th Pacific time based on 6 observations spanning .96029 days (2017-Sep-14.41066 to 2017-Sep-15.37095). Diameter approximately 0.014 km. from weighted mean H=26.95.
Assessment postings were noted by A/CC on 27 Sept. & 29 Sept.   -   References: DOU 2017-S157
2017 RW17NEODyS1500 Sept. 292044-210559.84e-09-10.18-10.30Based on 6 optical observations (of which 0 are rejected as outliers) from 2017-09-14.407 to 2017-09-15.298.
An assessment posting was noted by A/CC on 29 Sept.   -   References: DOU 2017-S157
2017 RP16NEODyS1606 Sept. 252065-2117165.02e-06-6.63-6.930Based on 19 optical observations (of which 4 are rejected as outliers) from 2017-09-15.412 to 2017-09-23.200.
JPL Sentry1542 Sept. 242065-2112114.08257e-06-6.64-7.090Computed at 08:06 Sept. 24th Pacific time based on 16 observations spanning 7.7878 days (2017-Sep-15.41118 to 2017-Sep-23.19898). Diameter approximately 0.012 km. from weighted mean H=27.20.
Assessment postings were noted by A/CC on 20 Sept., 21 Sept., 24 Sept. & 25 Sept.   -   References: MPEC 2017-S80 plus DOU 2017-S119
2017 RN16NEODyS1534 Sept. 272056-2117573.86e-05-6.70-6.940Based on 17 optical observations (of which 0 are rejected as outliers) from 2017-09-12.315 to 2017-09-20.309.
JPL Sentry1606 Sept. 252076-2117305.4149401e-05-6.56-6.700Computed at 08:08 Sept. 25th Pacific time based on 17 observations spanning 7.9949 days (2017-Sep-12.31378 to 2017-Sep-20.308696). Diameter approximately 0.005 km. from weighted mean H=29.07.
Assessment postings were noted by A/CC on 20 Sept., 21 Sept., 22 Sept., 23 Sept., 25 Sept. & 27 Sept.   -   References: MPEC 2017-S65 plus DOUs 2017-S96 & 2017-S122
2017 RH16NEODyS1619 Oct. 132044-2117361.35e-05-5.35-5.370Based on 12 optical observations (of which 0 are rejected as outliers) from 2017-09-13.336 to 2017-09-18.412.
JPL Sentry1732 Oct. 112040-21171936.44844071e-05-4.52-4.810Computed at 10:05 Oct. 11th Pacific time based on 12 observations spanning 5.0759 days (2017-Sep-13.33537 to 2017-Sep-18.411235). Diameter approximately 0.025 km. from weighted mean H=25.66.
Assessment postings were noted by A/CC on 20 Sept., 21 Sept., 11 Oct. & 13 Oct.   -   References: MPEC 2017-S61 plus DOU 2017-T43
2017 RZ15JPL Sentry1555 Sept. 202071-2117295.0389714e-05-5.66-6.000Computed at 08:23 Sept. 20th Pacific time based on 9 observations spanning 2.8111 days (2017-Sep-15.41445 to 2017-Sep-18.2255). Diameter approximately 0.013 km. from weighted mean H=27.15.
An assessment posting was noted by A/CC on 20 Sept.   -   References: no MPECs
2017 RV2NEODyS1456 Oct. 202071-2117425.99e-05-5.17-5.440Based on 133 optical observations (of which 10 are rejected as outliers) from 2017-09-14.436 to 2017-10-17.393.
JPL Sentry1730 Oct. 182082-2117420.00010798165-4.94-5.540Computed at 08:05 Oct. 18th Pacific time based on 133 observations spanning 32.957 days (2017-Sep-14.43497 to 2017-Oct-17.39182). Diameter approximately 0.019 km. from weighted mean H=26.20.
Assessment postings were noted by A/CC on 20 Sept., 21 Sept., 22 Sept., 23 Sept., 27 Sept., 28 Sept., 29 Sept., 30 Sept., 6 Oct., 18 Oct. & 20 Oct.   -   References: DOUs 2017-S85, 2017-S93, 2017-S96, 2017-S157, 2017-S196, 2017-S212, 2017-T17 & 2017-U50
2017 RU2NEODyS1530 Sept. 22R E M O V E D
JPL Sentry1620 Sept. 212093-209315.702e-07-6.92-6.920Computed at 07:56 Sept. 21st Pacific time based on 51 observations spanning 34.098 days (2017-Aug-17.37701 to 2017-Sep-20.475). Diameter approximately 0.024 km. from weighted mean H=25.76.
Assessment postings were noted by A/CC on 20 Sept., 21 Sept. & 22 Sept.   -   References: DOUs 2017-S85 & 2017-S93
2017 RK2NEODyS1530 Sept. 222083-211729.14e-06-6.74-6.740Based on 29 optical observations (of which 1 are rejected as outliers) from 2017-09-13.318 to 2017-09-19.489.
JPL Sentry1620 Sept. 212083-208318.612e-06-6.76-6.760Computed at 07:56 Sept. 21st Pacific time based on 29 observations spanning 6.1708 days (2017-Sep-13.31727 to 2017-Sep-19.4881). Diameter approximately 0.009 km. from weighted mean H=28.00.
Assessment postings were noted by A/CC on 21 Sept. & 22 Sept.   -   References: DOU 2017-S93
2017 QO36NEODyS1500 Sept. 292025-2106251.22e-09-5.95-6.330Based on 7 optical observations (of which 0 are rejected as outliers) from 2017-08-31.558 to 2017-09-01.370.
An assessment posting was noted by A/CC on 29 Sept.   -   References: DOU 2017-S157
2017 QS16NEODyS1530 Sept. 222063-207524.3e-08-7.54-7.570Based on 90 optical observations (of which 0 are rejected as outliers) from 2017-08-20.427 to 2017-09-20.596.
An assessment posting was noted by A/CC on 22 Sept.   -   References: DOU 2017-S93
2017 PL26NEODyS1456 Oct. 20R E M O V E D
JPL Sentry1503 Oct. 192100-210014.417e-09-7.29-7.290Computed at 07:55 Oct. 19th Pacific time based on 207 observations spanning 118.71 days (2017-Jun-21.52716 to 2017-Oct-18.233733). Diameter approximately 0.130 km. from weighted mean H=22.13.
Assessment postings were noted by A/CC on 1 Oct., 2 Oct., 18 Oct., 19 Oct. & 20 Oct.   -   References: DOUs 2017-T01, 2017-U50 & 2017-U66
2017 OO1NEODyS1450 Oct. 5R E M O V E D
JPL Sentry1555 Oct. 42115-211513.496e-08-7.57-7.570Computed at 08:02 Oct. 4th Pacific time based on 101 observations spanning 8.6032 days (2017-Jul-22.66455 to 2017-Jul-31.2677). Diameter approximately 0.042 km. from weighted mean H=24.52.
Assessment postings were noted by A/CC on 4 Oct. & 5 Oct.   -   References: DOU 2017-T15
2017 HZ4NEODyS1730 Oct. 18210619.77e-08-7.85-7.850Based on 57 optical observations (of which 3 are rejected as outliers) from 2017-04-26.445 to 2017-06-18.998.
JPL Sentry1532 Oct. 172091-210628.166e-07-6.89-7.170Computed at 08:06 Oct. 17th Pacific time based on 56 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 15 Oct., 16 Oct., 17 Oct. & 18 Oct.   -   References: DOUs 2017-T66, 2017-U14 & 2017-U31
2017 FR102NEODyS1456 Oct. 20211616.05e-09-8.41-8.410Based on 26 optical observations (of which 0 are rejected as outliers) from 2017-03-27.557 to 2017-04-28.519.
JPL Sentry1730 Oct. 18R E M O V E DRisk listing removed at 1455 UTC Oct. 18th
Assessment postings were noted by A/CC on 18 Oct. & 20 Oct.   -   References: DOU 2017-U50
2016 WJ1NEODyS1456 Oct. 202104-2115108.02e-07-4.51-5.310Based on 401 optical observations (of which 7 are rejected as outliers) from 2003-07-04.606 to 2017-07-31.349.
Assessment postings were noted by A/CC on 28 Sept. & 20 Oct.   -   References: DOU 2017-S153
2015 HV182NEODyS1555 Sept. 202018-21161202.89e-08-5.28-6.350Based on 9 optical observations (of which 0 are rejected as outliers) from 2015-04-18.277 to 2015-04-19.276.
An assessment posting was noted by A/CC on 20 Sept.   -   References: no recent MPECs
2012 BP123JPL Sentry1650 Sept. 232021-21173061.3384781e-06-6.87-7.700Computed at 09:34 April 8th Pacific time based on 13 observations spanning .91365 days (2012-Jan-31.31538 to 2012-Feb-01.22903). Diameter approximately 0.013 km. from weighted mean H=27.11.
An assessment posting was noted by A/CC on 23 Sept.   -   References: no recent MPECs
2010 XPJPL Sentry1606 Sept. 252021-2116731.449284e-07-7.46-7.910Computed at 11:10 April 8th Pacific time based on 15 observations spanning .11834 days (2010-Dec-02.24919 to 2010-Dec-02.36753). Diameter approximately 0.015 km. from weighted mean H=26.78.
An assessment posting was noted by A/CC on 25 Sept.   -   References: no recent MPECs
2010 VR139NEODyS1628 Oct. 112018-2109795.0e-08-7.96-8.810Based on 7 optical observations (of which 0 are rejected as outliers) from 2010-11-14.338 to 2010-11-14.402.
An assessment posting was noted by A/CC on 11 Oct.   -   References: no recent MPECs
2009 FZ4JPL Sentry2048 Oct. 22018-21164002.4869658e-06-5.20-5.770Computed at 22:33 April 7th Pacific time based on 11 observations spanning .59999 days (2009-Mar-19.36974 to 2009-Mar-19.96973). Diameter approximately 0.031 km. from weighted mean H=25.21.
An assessment posting was noted by A/CC on 2 Oct.   -   References: no recent MPECs
2006 SF281JPL Sentry1732 Oct. 112019-21163601.3183833e-06-6.18-7.670Computed at 20:48 April 8th Pacific time based on 16 observations spanning .02717 days (2006-Sep-30.48927 to 2006-Sep-30.51644). Diameter approximately 0.020 km. from weighted mean H=26.13.
An assessment posting was noted by A/CC on 11 Oct.   -   References: no recent MPECs
C   L   E   A   R   E   D
2017 TS3JPL Sentry1532 Oct. 17R E M O V E DRisk listing removed at 1528 UTC Oct. 17th
Assessment postings were noted by A/CC on 15 Oct. & 17 Oct.   -   References: MPEC 2017-T68 plus DOUs 2017-U31, 2017-U50 & 2017-U151
2017 TK1JPL Sentry1730 Oct. 9R E M O V E DRisk listing removed at 0049 UTC Oct. 8th, 2017 OD69 = 2017 TK1.
An assessment posting was noted by A/CC on 9 Oct.   -   References: MPEC 2017-T35 plus DOUs 2017-T61 & 2017-U31
2017 SV20JPL Sentry1555 Oct. 4R E M O V E DRisk listing removed at 1456 UTC Oct. 4th.
Assessment postings were noted by A/CC on 1 Oct., 2 Oct. & 4 Oct.   -   References: MPEC 2017-T04 plus DOUs 2017-T11, 2017-T15, 2017-T61, 2017-T66, 2017-U14 & 2017-U31
2017 SE19NEODyS1456 Oct. 20R E M O V E D
JPL Sentry1503 Oct. 19R E M O V E DRisk listing removed at 1450 UTC Oct. 19th
Assessment postings were noted by A/CC on 30 Sept., 2 Oct., 19 Oct. & 20 Oct.   -   References: MPEC 2017-S217 plus DOU 2017-U66
2017 SN14JPL Sentry1632 Oct. 1R E M O V E DRisk listing removed at 1556 UTC Oct. 1st.
Assessment postings were noted by A/CC on 27 Sept., 28 Sept. & 1 Oct.   -   References: MPEC 2017-S171 plus DOUs 2017-S196, 2017-T01, 2017-T11, 2017-T15, 2017-T49, 2017-U14, 2017-U50 & 2017-U151
2017 SM14NEODyS1540 Oct. 2R E M O V E D
JPL Sentry1553 Oct. 1R E M O V E DRisk listing removed at 1540 UTC Oct. 1st.
Assessment postings were noted by A/CC on 27 Sept., 28 Sept., 29 Sept., 30 Sept., 1 Oct. & 2 Oct.   -   References: MPEC 2017-S181 plus DOUs 2017-S212 & 2017-T01
2017 SH14JPL Sentry2048 Oct. 2R E M O V E DRisk listing removed at 1503 UTC Oct. 2nd.
NEODyS1604 Oct. 2R E M O V E D
Assessment postings were noted by A/CC on 27 Sept., 28 Sept. & 2 Oct.   -   References: MPEC 2017-S166 plus DOUs 2017-T11 & 2017-T49
2017 SG14JPL Sentry1602 Sept. 29R E M O V E DRisk listing removed at 1540 UTC Sept. 29th.
Assessment postings were noted by A/CC on 27 Sept. & 29 Sept.   -   References: MPEC 2017-S165 plus DOUs 2017-S212, 2017-S215, 2017-T49, 2017-T65, 2017-U14, 2017-U31, 2017-U50 & 2017-U153
2017 SE14NEODyS1500 Oct. 3R E M O V E D
Assessment postings were noted by A/CC on 28 Sept. & 3 Oct.   -   References: MPEC 2017-S170 plus DOUs 2017-S212 & 2017-T01
2017 SE12JPL Sentry1700 Sept. 26R E M O V E DRisk listing removed at 1505 UTC Sept. 26th.
Assessment postings were noted by A/CC on 25 Sept. & 26 Sept.   -   References: MPEC 2017-S139 plus DOUs 2017-S153, 2017-S196 & 2017-S212
2017 RX2JPL Sentry1707 Sept. 20R E M O V E DRisk listing removed at 1633 UTC Sept. 20th.
An assessment posting was noted by A/CC on 20 Sept.   -   References: DOU 2017-S85
2017 OD69JPL Sentry1630 Oct. 9R E M O V E DRisk listing removed at 0049 UTC Oct. 8th, 2017 OD69 = 2017 TK1.
An assessment posting was noted by A/CC on 9 Oct.   -   References: no MPECs
2017 MB1JPL Sentry2048 Oct. 2R E M O V E DRisk listing removed at 1458 UTC Oct. 2nd.
NEODyS1604 Oct. 2R E M O V E D
Assessment postings were noted by A/CC on 22 Sept., 23 Sept., 25 Sept., 27 Sept. & 2 Oct.   -   References: DOUs 2017-S117, 2017-S122 & 2017-T11
2017 BL30NEODyS1540 Oct. 2R E M O V E D
An assessment posting was noted by A/CC on 2 Oct.   -   References: DOU 2017-T01
2016 FW3NEODyS2002 Sept. 23R E M O V E D
JPL Sentry1650 Sept. 23R E M O V E DRisk listing removed at 1403 UTC Sept. 23rd.
Assessment postings were noted by A/CC on 23 Sept.   -   References: MPEC 2017-S113
2013 TX68JPL Sentry1835 Oct. 3R E M O V E DRisk listing removed at 1950 UTC Oct. 3rd.
An assessment posting was noted by A/CC on 3 Oct.   -   References: no recent MPECs
2012 TC4NEODyS1501 Oct. 17R E M O V E D
JPL Sentry1800 Oct. 16R E M O V E DRisk listing removed at 1604 UTC Oct. 9th.
Assessment postings were noted by A/CC on 22 Sept., 23 Sept., 27 Sept., 28 Sept., 30 Sept., 3 Oct., 8 Oct., 9 Oct., 11 Oct., 16 Oct. & 17 Oct.   -   References: DOUs 2017-S93, 2017-S96, 2017-S117, 2017-S122, 2017-S153, 2017-S157, 2017-S212, 2017-T01, 2017-T11, 2017-T20, 2017-T39, 2017-T41, 2017-T42, 2017-T43, 2017-T49, 2017-T61, 2017-U31, 2017-U50 & 2017-U153, radar: 9 Oct., 10 Oct. & 11 Oct.

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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