A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted in the Last 31 Days

Compiled at 0720 UTC on 24 January 2020

[ 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
2020 BB5NEODyS0720 Jan. 242087-2118181.93e-04-6.24-6.30Based on 28 optical observations (of which 0 are rejected as outliers) from 2020-01-23.324 to 2020-01-24.007.
JPL Sentry0532 Jan. 242087-2119150.0001567920301-6.30-6.420Computed at 20:32 Jan. 23rd Pacific time based on 28 observations spanning .68336 days (2020-Jan-23.32313 to 2020-Jan-24.00649). Diameter approximately 0.004 km. from weighted mean H=29.53.
Assessment postings were noted by A/CC on 24 Jan.   -   References: MPEC 2020-B109
2020 BY4NEODyS0720 Jan. 242055-2117173.47e-06-5.77-6.20Based on 21 optical observations (of which 3 are rejected as outliers) from 2020-01-20.414 to 2020-01-24.058.
JPL Sentry0532 Jan. 242055-2117173.838952e-06-5.72-6.140Computed at 20:30 Jan. 23rd Pacific time based on 18 observations spanning 3.6445 days (2020-Jan-20.412927 to 2020-Jan-24.057461). Diameter approximately 0.020 km. from weighted mean H=26.11.
Assessment postings were noted by A/CC on 24 Jan.   -   References: MPEC 2020-B106
2020 BK3NEODyS1640 Jan. 232090-2118225.02e-04-4.43-4.580Based on 42 optical observations (of which 0 are rejected as outliers) from 2020-01-22.396 to 2020-01-22.939.
JPL Sentry0022 Jan. 232091-2107100.00040305755-4.51-4.620Computed at 16:04 Jan. 22nd Pacific time based on 42 observations spanning .54321 days (2020-Jan-22.395303 to 2020-Jan-22.93851). Diameter approximately 0.014 km. from weighted mean H=26.89.
Assessment postings were noted by A/CC on 23 Jan.   -   References: MPEC 2020-B85
2020 BH3NEODyS1640 Jan. 232059-210671.06e-06-6.67-7.070Based on 15 optical observations (of which 0 are rejected as outliers) from 2020-01-21.276 to 2020-01-22.740.
JPL Sentry0022 Jan. 232059-2110112.4097e-06-6.30-6.680Computed at 16:01 Jan. 22nd Pacific time based on 15 observations spanning 1.4645 days (2020-Jan-21.274771 to 2020-Jan-22.739289). Diameter approximately 0.022 km. from weighted mean H=25.93.
Assessment postings were noted by A/CC on 23 Jan.   -   References: MPEC 2020-B83
2020 BY1NEODyS0720 Jan. 24204921.52e-06-6.01-6.040Based on 43 optical observations (of which 0 are rejected as outliers) from 2020-01-20.462 to 2020-01-23.328.
JPL Sentry2000 Jan. 232049-205735.947884e-06-5.41-5.410Computed at 11:50 Jan. 23rd Pacific time based on 43 observations spanning 2.8661 days (2020-Jan-20.460859 to 2020-Jan-23.32694). Diameter approximately 0.020 km. from weighted mean H=26.17.
Assessment postings were noted by A/CC on 21 Jan., 22 Jan., 23 Jan. & 24 Jan.   -   References: MPEC 2020-B56 plus DOUs 2020-B72 & 2020-B94
2020 BF1JPL Sentry1605 Jan. 202065-211138.962e-09-8.77-9.060Computed at 05:10 Jan. 20th Pacific time based on 19 observations spanning .91693 days (2020-Jan-19.5176 to 2020-Jan-20.434534). Diameter approximately 0.021 km. from weighted mean H=26.09.
An assessment posting was noted by A/CC on 20 Jan.   -   References: MPEC 2020-B32
2020 BHNEODyS2250 Jan. 192097-2117156.19e-06-7.26-7.320Based on 28 optical observations (of which 0 are rejected as outliers) from 2020-01-18.333 to 2020-01-19.375.
An assessment posting was noted by A/CC on 19 Jan.   -   References: MPEC 2020-B12
2020 BBNEODyS1700 Jan. 222101-211541.88e-07-8.97-9.190Based on 80 optical observations (of which 1 are rejected as outliers) from 2020-01-18.290 to 2020-01-22.067.
JPL Sentry1700 Jan. 222107-210712.733e-07-8.76-8.760Computed at 08:09 Jan. 22nd Pacific time based on 80 observations spanning 3.7774 days (2020-Jan-18.28892 to 2020-Jan-22.06637). Diameter approximately 0.006 km. from weighted mean H=28.59.
Assessment postings were noted by A/CC on 19 Jan., 20 Jan., 21 Jan. & 22 Jan.   -   References: MPEC 2020-B07 plus DOUs 2020-B11, 2020-B37, 2020-B58 & 2020-B72
2020 AN3NEODyS2300 Jan. 18210612.33e-06-3.50-3.50Based on 136 optical observations (of which 3 are rejected as outliers) from 2019-11-09.148 to 2020-01-17.873.
JPL Sentry1645 Jan. 182106-210618.826e-07-3.90-3.900Computed at 05:47 Jan. 18th Pacific time based on 127 observations spanning 69.725 days (2019-Nov-09.147003 to 2020-Jan-17.872451). Diameter approximately 0.290 km. from weighted mean H=20.35.
Assessment postings were noted by A/CC on 16 Jan., 17 Jan. & 18 Jan.   -   References: MPEC 2020-A139 plus DOUs 2020-B03, 2020-B04 & 2020-B05
2020 AY1JPL Sentry1605 Jan. 202103-210311.301e-07-7.33-7.330Computed at 05:41 Jan. 20th Pacific time based on 102 observations spanning 13.992 days (2020-Jan-05.24158 to 2020-Jan-19.23395). Diameter approximately 0.032 km. from weighted mean H=25.12.
NEODyS1605 Jan. 20210315.38e-08-7.73-7.730Based on 103 optical observations (of which 4 are rejected as outliers) from 2020-01-05.242 to 2020-01-19.235.
Assessment postings were noted by A/CC on 6 Jan., 7 Jan., 8 Jan., 13 Jan., 14 Jan., 18 Jan. & 20 Jan.   -   References: MPEC 2020-A77 plus DOUs 2020-A86, 2020-A92, 2020-A123, 2020-A125, 2020-A130, 2020-B04, 2020-B05 & 2020-B37
2020 AR1JPL Sentry1735 Jan. 7R E M O V E DRisk listing removed at 1457 UTC Jan. 7th
NEODyS1735 Jan. 72072-208926.94e-08-8.33-8.340Based on 36 optical observations (of which 0 are rejected as outliers) from 2020-01-04.271 to 2020-01-07.382.
Assessment postings were noted by A/CC on 5 Jan., 6 Jan. & 7 Jan.   -   References: MPEC 2020-A69 plus DOUs 2020-A81 & 2020-A86
2020 AO1JPL Sentry1640 Jan. 102049-204919.077e-08-6.01-6.010Computed at 06:02 Jan. 10th Pacific time based on 89 observations spanning 5.0252 days (2020-Jan-04.27153 to 2020-Jan-09.296698). Diameter approximately 0.062 km. from weighted mean H=23.68.
NEODyS1640 Jan. 10204915.59e-08-6.24-6.240Based on 89 optical observations (of which 0 are rejected as outliers) from 2020-01-04.272 to 2020-01-09.297.
Assessment postings were noted by A/CC on 5 Jan., 6 Jan., 7 Jan., 8 Jan. & 10 Jan.   -   References: MPEC 2020-A66 plus DOUs 2020-A81, 2020-A86, 2020-A92 & 2020-A110
2020 AC1JPL Sentry1700 Jan. 142093-211773.8132e-06-7.48-8.010Computed at 06:13 Jan. 14th Pacific time based on 43 observations spanning 9.8722 days (2020-Jan-04.267512 to 2020-Jan-14.1397). Diameter approximately 0.007 km. from weighted mean H=28.41.
NEODyS1700 Jan. 142093-2117177.3e-06-7.20-7.850Based on 43 optical observations (of which 0 are rejected as outliers) from 2020-01-04.268 to 2020-01-14.141.
Assessment postings were noted by A/CC on 5 Jan., 6 Jan., 7 Jan., 8 Jan. & 14 Jan.   -   References: MPEC 2020-A56 plus DOUs 2020-A81, 2020-A86, 2020-A92 & 2020-A125
2020 AWNEODyS1710 Jan. 62063-21181521.13e-04-6.06-6.750Based on 21 optical observations (of which 1 are rejected as outliers) from 2020-01-03.353 to 2020-01-06.222.
JPL Sentry1635 Jan. 62044-2118820.000174526958-5.84-6.550Computed at 06:50 Jan. 6th Pacific time based on 20 observations spanning 2.8586 days (2020-Jan-03.36222 to 2020-Jan-06.22082). Diameter approximately 0.006 km. from weighted mean H=28.68.
Assessment postings were noted by A/CC on 4 Jan. & 6 Jan.   -   References: MPEC 2020-A53 plus DOU 2020-A81
2019 YV4NEODyS1545 Jan. 12049-206234.09e-08-8.11-8.390Based on 17 optical observations (of which 0 are rejected as outliers) from 2019-12-30.371 to 2019-12-30.936.
JPL Sentry0530 Jan. 12035-204946.18581e-08-7.86-7.960Computed at 20:58 Dec. 31st of 2019 Pacific time based on 17 observations spanning .56526 days (2019-Dec-30.36984 to 2019-Dec-30.935097). Diameter approximately 0.012 km. from weighted mean H=27.31.
Assessment postings were noted by A/CC on 1 Jan.   -   References: MPEC 2020-A05
2019 YP3NEODyS2250 Jan. 19211111.07e-07-7.78-7.780Based on 57 optical observations (of which 0 are rejected as outliers) from 2019-12-27.534 to 2020-01-19.346.
JPL Sentry1630 Jan. 192103-210312.692e-09-9.26-9.260Computed at 05:59 Jan. 19th Pacific time based on 57 observations spanning 22.811 days (2019-Dec-27.53345 to 2020-Jan-19.34474). Diameter approximately 0.023 km. from weighted mean H=25.86.
Assessment postings were noted by A/CC on 29 Dec., 30 Dec., 1 Jan., 3 Jan., 4 Jan., 5 Jan., 7 Jan., 8 Jan., 17 Jan., 18 Jan. & 19 Jan.   -   References: MPEC 2019-Y112 plus DOUs 2020-A06, 2020-A42, 2020-A55, 2020-A63, 2020-A81, 2020-A86, 2020-A92, 2020-B04 & 2020-B11
2019 YL3JPL Sentry1630 Jan. 82047-204711.120e-07-8.05-8.050Computed at 07:35 Jan. 8th Pacific time based on 36 observations spanning 4.1836 days (2019-Dec-28.389529 to 2020-Jan-01.573085). Diameter approximately 0.010 km. from weighted mean H=27.70.
NEODyS1635 Jan. 3R E M O V E D
Assessment postings were noted by A/CC on 28 Dec., 29 Dec., 30 Dec., 3 Jan. & 8 Jan.   -   References: MPEC 2019-Y108 plus DOUs 2019-Y117, 2020-A42 & 2020-A92
2019 YA3NEODyS1710 Jan. 62095-210326.55e-08-8.16-8.230Based on 16 optical observations (of which 0 are rejected as outliers) from 2019-12-24.424 to 2020-01-06.235.
JPL Sentry1635 Jan. 62095-211622.40018e-08-8.59-8.600Computed at 06:13 Jan. 6th Pacific time based on 16 observations spanning 12.811 days (2019-Dec-24.422791 to 2020-Jan-06.23403). Diameter approximately 0.018 km. from weighted mean H=26.42.
Assessment postings were noted by A/CC on 27 Dec., 4 Jan. & 6 Jan.   -   References: MPEC 2019-Y99 plus DOUs 2020-A55 & 2020-A81
2019 YW2JPL Sentry1600 Jan. 212119-211925.1413e-08-7.09-7.180Computed at 06:04 Jan. 21st Pacific time based on 130 observations spanning 23.786 days (2019-Dec-24.513641 to 2020-Jan-17.29966). Diameter approximately 0.054 km. from weighted mean H=23.98.
NEODyS1600 Jan. 212106-211756.52e-08-6.98-7.30Based on 132 optical observations (of which 4 are rejected as outliers) from 2019-12-24.514 to 2020-01-17.300.
Assessment postings were noted by A/CC on 26 Dec., 27 Dec., 28 Dec., 31 Dec., 1 Jan., 2 Jan., 3 Jan., 5 Jan., 6 Jan., 7 Jan., 8 Jan., 9 Jan., 14 Jan., 16 Jan., 17 Jan., 18 Jan. & 21 Jan.   -   References: MPEC 2019-Y93 plus DOUs 2019-Y95, 2019-Y107, 2019-Y136, 2020-A27, 2020-A42, 2020-A63, 2020-A81, 2020-A86, 2020-A92, 2020-A101, 2020-A125, 2020-B03, 2020-B04 & 2020-B58
2019 YV1JPL Sentry1700 Jan. 142089-211881.7403478e-05-5.24-5.290Computed at 05:38 Jan. 14th Pacific time based on 83 observations spanning 23.999 days (2019-Dec-21.11125 to 2020-Jan-14.11034). Diameter approximately 0.032 km. from weighted mean H=25.10.
NEODyS1700 Jan. 142089-2118131.57e-05-5.29-5.350Based on 83 optical observations (of which 0 are rejected as outliers) from 2019-12-21.112 to 2020-01-14.111.
Assessment postings were noted by A/CC on 24 Dec., 26 Dec., 27 Dec., 30 Dec., 6 Jan., 7 Jan., 8 Jan., 9 Jan. & 14 Jan.   -   References: DOUs 2019-Y85, 2019-Y95, 2019-Y117, 2020-A81, 2020-A86, 2020-A92, 2020-A101 & 2020-A125
2019 WA3JPL Sentry1640 Jan. 42110-211011.833e-07-7.40-7.400Computed at 05:37 Jan. 4th Pacific time based on 17 observations spanning 12.071 days (2019-Nov-25.361902 to 2019-Dec-07.43284). Diameter approximately 0.026 km. from weighted mean H=25.54.
NEODyS1640 Jan. 42090-211035.38e-08-7.95-7.960Based on 17 optical observations (of which 1 are rejected as outliers) from 2019-11-25.363 to 2019-12-07.434.
Assessment postings were noted by A/CC on 4 Jan.   -   References: DOU 2020-A55
2019 WG2JPL Sentry1930 Jan. 212093-2119374.335045e-05-4.51-5.050Computed at 11:06 Jan. 21st Pacific time based on 44 observations spanning 52.609 days (2019-Nov-24.495057 to 2020-Jan-16.10374). Diameter approximately 0.035 km. from weighted mean H=24.92.
NEODyS2300 Jan. 182093-2118803.1e-05-4.66-5.00Based on 44 optical observations (of which 0 are rejected as outliers) from 2019-11-24.496 to 2020-01-16.105.
Assessment postings were noted by A/CC on 17 Jan., 18 Jan. & 21 Jan.   -   References: DOU 2020-B04
2019 WV1NEODyS0720 Jan. 242078-2117192.86e-06-7.42-7.890Based on 21 optical observations (of which 0 are rejected as outliers) from 2019-11-24.614 to 2019-12-03.419.
JPL Sentry1944 Jan. 232078-2117142.801846e-06-7.41-7.850Computed at 11:34 Jan. 23rd Pacific time based on 21 observations spanning 8.8051 days (2019-Nov-24.61277 to 2019-Dec-03.417857). Diameter approximately 0.008 km. from weighted mean H=28.20.
Assessment postings were noted by A/CC on 23 Jan. & 24 Jan.   -   References: DOU 2020-B94
2019 UN8NEODyS2300 Jan. 182093-2114106.23e-07-8.48-8.990Based on 17 optical observations (of which 0 are rejected as outliers) from 2019-10-25.250 to 2019-10-29.505.
JPL Sentry1640 Jan. 172101-210534.8359e-07-8.57-8.940Computed at 05:31 Jan. 17th Pacific time based on 17 observations spanning 4.2547 days (2019-Oct-25.24937 to 2019-Oct-29.504096). Diameter approximately 0.004 km. from weighted mean H=29.70.
Assessment postings were noted by A/CC on 17 Jan. & 18 Jan.   -   References: DOU 2020-B04
2019 SO6NEODyS1640 Jan. 102077-210929.57e-09-8.11-8.260Based on 23 optical observations (of which 0 are rejected as outliers) from 2019-09-26.296 to 2019-10-06.316.
An assessment posting was noted by A/CC on 10 Jan.   -   References: DOU 2020-A110
2017 WT28NEODyS1600 Dec. 242080-21171633.09e-03-4.44-4.490Based on 26 optical observations (of which 0 are rejected as outliers) from 2017-11-28.291 to 2017-12-16.266.
An assessment posting was noted by A/CC on 24 Dec.   -   References: no recent MPECs
2017 SA20NEODyS1600 Dec. 242031-211810113.2e-04-5.26-6.080Based on 34 optical observations (of which 0 are rejected as outliers) from 2017-09-24.415 to 2017-10-15.043.
An assessment posting was noted by A/CC on 24 Dec.   -   References: no recent MPECs
2017 LDNEODyS1600 Dec. 242053-21184412.38e-03-4.17-4.740Based on 131 optical observations (of which 0 are rejected as outliers) from 2017-05-16.299 to 2017-06-30.357.
An assessment posting was noted by A/CC on 24 Dec.   -   References: no recent MPECs
2016 RP41JPL Sentry0511 Dec. 272022-2114481.54046e-08-6.24-6.600Computed at 17:35 April 8th of 2017 Pacific time based on 7 observations spanning .75865 days (2016-Sep-12.51611 to 2016-Sep-13.27476). Diameter approximately 0.110 km. from weighted mean H=22.48.
NEODyS2317 Dec. 252022-2111357.82e-09-6.42-6.560Based on 7 optical observations (of which 0 are rejected as outliers) from 2016-09-12.517 to 2016-09-13.276.
Assessment postings were noted by A/CC on 25 Dec. & 27 Dec.   -   References: no recent MPECs
2016 AZ193JPL Sentry1500 Dec. 302020-21144942.1931625e-06-6.31-7.220Computed at 14:28 April 6th of 2017 Pacific time based on 9 observations spanning .15930 days (2016-Jan-03.25638 to 2016-Jan-03.41568). Diameter approximately 0.016 km. from weighted mean H=26.62.
An assessment posting was noted by A/CC on 30 Dec.   -   References: no recent MPECs
2012 HG2NEODyS1600 Dec. 242052-211914541.57e-03-4.06-4.720Based on 210 optical observations (of which 0 are rejected as outliers) from 2012-04-20.372 to 2012-05-29.351.
An assessment posting was noted by A/CC on 24 Dec.   -   References: no recent MPECs
2012 BK14JPL Sentry1640 Jan. 172021-21176665.33044401e-05-5.77-6.890Computed at 12:45 April 7th of 2017 Pacific time based on 11 observations spanning .14854 days (2012-Jan-21.317 to 2012-Jan-21.46554). Diameter approximately 0.009 km. from weighted mean H=27.98.
An assessment posting was noted by A/CC on 17 Jan.   -   References: no recent MPECs
2011 ES4NEODyS0444 Jan. 122031-21151336.27e-05-4.70-5.140Based on 47 optical observations (of which 3 are rejected as outliers) from 2011-03-02.199 to 2011-03-06.236.
JPL Sentry1720 Jan. 112031-2112755.38789188e-05-4.66-5.120Computed at 05:58 Jan. 11th Pacific time based on 44 observations spanning 4.0327 days (2011-Mar-02.19847 to 2011-Mar-06.23118). Diameter approximately 0.025 km. from weighted mean H=25.68.
Assessment postings were noted by A/CC on 11 Jan. & 12 Jan.   -   References: DOU 2020-A114
2011 BL45NEODyS1600 Dec. 242050-2117681.33e-04-5.26-5.470Based on 25 optical observations (of which 1 are rejected as outliers) from 2011-01-30.345 to 2011-02-12.201.
An assessment posting was noted by A/CC on 24 Dec.   -   References: no recent MPECs
2011 AM37NEODyS1600 Dec. 242048-21182158.7e-03-4.44-4.650Based on 19 optical observations (of which 0 are rejected as outliers) from 2011-01-13.331 to 2011-01-16.478.
An assessment posting was noted by A/CC on 24 Dec.   -   References: no recent MPECs
2011 AE3JPL Sentry1640 Jan. 42020-21176185.78232626000001e-05-5.29-5.700Computed at 01:02 April 9th of 2017 Pacific time based on 16 observations spanning .04277 days (2011-Jan-04.23829 to 2011-Jan-04.28106). Diameter approximately 0.010 km. from weighted mean H=27.66.
An assessment posting was noted by A/CC on 4 Jan.   -   References: no recent MPECs
2010 RF12NEODyS1600 Dec. 242095-21181076.6e-02-3.22-3.220Based on 333 optical observations (of which 1 are rejected as outliers) from 2010-09-03.494 to 2010-09-08.516.
An assessment posting was noted by A/CC on 24 Dec.   -   References: no recent MPECs
2010 DG77JPL Sentry1905 Jan. 122021-21175667.383039e-06-4.84-6.270Computed at 09:40 April 7th of 2017 Pacific time based on 10 observations spanning .59543 days (2010-Feb-19.17573 to 2010-Feb-19.77116). Diameter approximately 0.044 km. from weighted mean H=24.47.
An assessment posting was noted by A/CC on 12 Jan.   -   References: no recent MPECs
2008 VS4JPL Sentry0022 Jan. 232021-21143085.751628e-07-5.56-6.640Computed 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=24.21.
An assessment posting was noted by A/CC on 23 Jan.   -   References: no recent MPECs
C   L   E   A   R   E   D
2020 BU3NEODyS0720 Jan. 24R E M O V E D
JPL Sentry2000 Jan. 23R E M O V E DRisk listing removed at 1947 UTC Jan. 23rd
Assessment postings were noted by A/CC on 23 Jan. & 24 Jan.   -   References: MPEC 2020-B92 plus DOU 2020-B94
2020 BD1NEODyS0720 Jan. 24R E M O V E D
JPL Sentry2000 Jan. 23R E M O V E DRisk listing removed at 1952 UTC Jan. 23rd
Assessment postings were noted by A/CC on 20 Jan., 23 Jan. & 24 Jan.   -   References: MPEC 2020-B36 plus DOU 2020-B94
2020 BB1NEODyS1700 Jan. 22R E M O V E D
Assessment postings were noted by A/CC on 20 Jan. & 22 Jan.   -   References: MPEC 2020-B35 plus DOU 2020-B72
2020 APJPL Sentry1645 Jan. 5R E M O V E DRisk listing removed at 1448 UTC Jan. 5th
Assessment postings were noted by A/CC on 3 Jan. & 5 Jan.   -   References: MPEC 2020-A47 plus DOU 2020-A63
2020 AKNEODyS1710 Jan. 6R E M O V E D
JPL Sentry1640 Jan. 4R E M O V E DRisk listing removed at 1358 UTC Jan. 4th
Assessment postings were noted by A/CC on 2 Jan., 4 Jan. & 6 Jan.   -   References: MPEC 2020-A33 plus DOUs 2020-A55, 2020-A81, 2020-A86, 2020-A92, 2020-A130, 2020-B37 & 2020-B94
2019 YZ4JPL Sentry1640 Jan. 4R E M O V E DRisk listing removed at 1355 UTC Jan. 4th
Assessment postings were noted by A/CC on 1 Jan. & 4 Jan.   -   References: MPEC 2020-A08 plus DOUs 2020-A55, 2020-A63 & 2020-A81
2019 YJ3NEODyS1730 Dec. 30R E M O V E D
JPL Sentry1500 Dec. 30R E M O V E DRisk listing removed at 1357 UTC Dec. 30th
Assessment postings were noted by A/CC on 28 Dec. & 30 Dec.   -   References: MPEC 2019-Y106 plus DOUs 2019-Y107, 2019-Y117, 2020-A42, 2020-A55, 2020-A63, 2020-A125, 2020-B11 & 2020-B94
2019 YA2NEODyS2250 Jan. 19R E M O V E D
JPL Sentry1635 Jan. 6R E M O V E DRisk listing removed at 1435 UTC Jan. 6th
Assessment postings were noted by A/CC on 25 Dec., 26 Dec., 27 Dec., 28 Dec., 1 Jan., 3 Jan., 5 Jan., 6 Jan., 7 Jan., 8 Jan., 14 Jan. & 19 Jan.   -   References: DOUs 2019-Y90, 2019-Y95, 2019-Y101, 2020-A06, 2020-A42, 2020-A63, 2020-A81, 2020-A86, 2020-A92, 2020-A125 & 2020-B11
2019 YX1NEODyS0100 Jan. 13R E M O V E D
JPL Sentry1720 Jan. 11R E M O V E DRisk listing removed at 0730 UTC Jan. 11th
Assessment postings were noted by A/CC on 24 Dec., 25 Dec., 27 Dec., 28 Dec., 29 Dec., 30 Dec., 2 Jan., 11 Jan. & 13 Jan.   -   References: DOUs 2019-Y90, 2019-Y101, 2019-Y110, 2020-A27 & 2020-B72, radar: 11 Jan.
2019 YK1NEODyS0511 Dec. 27R E M O V E D
An assessment posting was noted by A/CC on 27 Dec.   -   References: DOU 2019-Y95
2019 YENEODyS1545 Jan. 1R E M O V E D
Assessment postings were noted by A/CC on 24 Dec. & 1 Jan.   -   References: DOU 2020-A06
2019 XQ2JPL Sentry1640 Jan. 4R E M O V E DRisk listing removed at 1337 UTC Jan. 4th
Assessment postings were noted by A/CC on 2 Jan. & 4 Jan.   -   References: DOUs 2020-A27, 2020-A55, 2020-A63, 2020-A81, 2020-A86 & 2020-A92
2019 XKNEODyS2317 Dec. 25R E M O V E D
JPL Sentry1630 Dec. 25R E M O V E DRisk listing removed at 1431 UTC Dec. 25th
Assessment postings were noted by A/CC on 25 Dec.   -   References: DOU 2019-Y90
2015 TC25JPL Sentry2001 Jan. 13R E M O V E DRisk listing removed at 1939 UTC Jan. 13th
An assessment posting was noted by A/CC on 13 Jan.   -   References: no recent MPECs

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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