A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted in the Last 31 Days

Compiled at 1631 UTC on 22 September 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 SQ2NEODyS1620 Sept. 212039-209241.54e-07-7.38-7.560Based on 21 optical observations (of which 0 are rejected as outliers) from 2017-09-18.347 to 2017-09-20.004.
JPL Sentry0510 Sept. 202068-206819.291e-08-7.48-7.480Computed at 21:49 Sept. 19th Pacific time based on 21 observations spanning 1.6566 days (2017-Sep-18.34652 to 2017-Sep-20.003108). Diameter approximately 0.024 km. from weighted mean H=25.79.
Assessment postings were noted by A/CC on 20 Sept. & 21 Sept.   -   References: MPEC 2017-S84
2017 RP16NEODyS1620 Sept. 212065-2114235.5e-06-6.54-7.010Based on 16 optical observations (of which 3 are rejected as outliers) from 2017-09-15.412 to 2017-09-19.372.
JPL Sentry0510 Sept. 202065-2112113.965503e-06-6.65-7.120Computed at 22:03 Sept. 19th Pacific time based on 13 observations spanning 3.9597 days (2017-Sep-15.41118 to 2017-Sep-19.37083). Diameter approximately 0.012 km. from weighted mean H=27.20.
Assessment postings were noted by A/CC on 20 Sept. & 21 Sept.   -   References: MPEC 2017-S80
2017 RN16JPL Sentry1530 Sept. 222076-2115235.032131e-05-6.55-6.900Computed at 08:09 Sept. 22nd Pacific time based on 12 observations spanning 4.9034 days (2017-Sep-15.40527 to 2017-Sep-20.308696). Diameter approximately 0.005 km. from weighted mean H=29.06.
NEODyS1620 Sept. 212076-21171311.05e-04-6.28-6.80Based on 9 optical observations (of which 0 are rejected as outliers) from 2017-09-15.406 to 2017-09-18.420.
Assessment postings were noted by A/CC on 20 Sept., 21 Sept. & 22 Sept.   -   References: MPEC 2017-S65 plus DOU 2017-S96
2017 RH16NEODyS1620 Sept. 212040-2117721.08e-05-4.84-4.850Based on 9 optical observations (of which 0 are rejected as outliers) from 2017-09-13.336 to 2017-09-18.412.
JPL Sentry0700 Sept. 202040-21162372.45533749e-05-4.86-5.290Computed at 23:28 Sept. 19th Pacific time based on 9 observations spanning 5.0759 days (2017-Sep-13.33537 to 2017-Sep-18.411235). Diameter approximately 0.025 km. from weighted mean H=25.65.
Assessment postings were noted by A/CC on 20 Sept. & 21 Sept.   -   References: MPEC 2017-S61
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.
Assessment postings were noted by A/CC on 18 Sept. & 20 Sept.   -   References: MPEC 2017-S47
2017 RV2JPL Sentry1530 Sept. 222082-2117370.000108444891-4.91-5.740Computed at 08:09 Sept. 22nd Pacific time based on 120 observations spanning 7.9406 days (2017-Sep-14.43497 to 2017-Sep-22.37557). Diameter approximately 0.020 km. from weighted mean H=26.18.
NEODyS1530 Sept. 222071-2117576.92e-05-5.09-5.640Based on 115 optical observations (of which 2 are rejected as outliers) from 2017-09-14.436 to 2017-09-21.338.
Assessment postings were noted by A/CC on 17 Sept., 19 Sept., 20 Sept., 21 Sept. & 22 Sept.   -   References: MPEC 2017-S15 plus DOUs 2017-S55, 2017-S85, 2017-S93 & 2017-S96
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 17 Sept., 20 Sept., 21 Sept. & 22 Sept.   -   References: MPEC 2017-S14 plus 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 17 Sept., 18 Sept., 21 Sept. & 22 Sept.   -   References: MPEC 2017-S20 plus DOUs 2017-S25 & 2017-S93
2017 RJ2JPL Sentry1902 Sept. 172108-211171.85419e-06-7.07-7.380Computed at 10:52 Sept. 17th Pacific time based on 26 observations spanning 2.7566 days (2017-Sep-12.31571 to 2017-Sep-15.072295). Diameter approximately 0.011 km. from weighted mean H=27.48.
An assessment posting was noted by A/CC on 17 Sept.   -   References: MPEC 2017-S19
2017 RCNEODyS1537 Sept. 192084-2117553.38e-05-6.19-6.520Based on 36 optical observations (of which 0 are rejected as outliers) from 2017-09-01.386 to 2017-09-15.330.
JPL Sentry1550 Sept. 182086-2117264.5377757e-05-6.07-6.500Computed at 08:03 Sept. 18th Pacific time based on 36 observations spanning 13.944 days (2017-Sep-01.38514 to 2017-Sep-15.329587). Diameter approximately 0.009 km. from weighted mean H=27.89.
Assessment postings were noted by A/CC on 3 Sept., 4 Sept., 13 Sept., 16 Sept., 17 Sept., 18 Sept. & 19 Sept.   -   References: MPEC 2017-R25 plus DOUs 2017-R29, 2017-R52, 2017-S03 & 2017-S25
2017 QC36NEODyS2202 Sept. 82024-2087147.63e-10-5.60-5.880Based on 7 optical observations (of which 0 are rejected as outliers) from 2017-08-18.601 to 2017-08-19.060.
JPL Sentry1702 Sept. 82024-2117795.010493e-07-5.27-5.610Computed at 09:49 Sept. 8th Pacific time based on 7 observations spanning .45854 days (2017-Aug-18.60031 to 2017-Aug-19.05885). Diameter approximately 0.081 km. from weighted mean H=23.15.
Assessment postings were noted by A/CC on 8 Sept.   -   References: DOU 2017-R42
2017 QU34NEODyS1540 Sept. 12083-2111111.09e-05-6.61-6.870Based on 23 optical observations (of which 0 are rejected as outliers) from 2017-08-28.310 to 2017-08-31.358.
JPL Sentry0453 Sept. 12083-2111101.248789e-05-6.55-6.780Computed at 21:51 Aug. 31st Pacific time based on 23 observations spanning 3.0484 days (2017-Aug-28.30888 to 2017-Aug-31.357263). Diameter approximately 0.007 km. from weighted mean H=28.28.
Assessment postings were noted by A/CC on 1 Sept.   -   References: MPEC 2017-R02
2017 QM33NEODyS1540 Sept. 12069-2107189.3e-06-6.31-6.380Based on 24 optical observations (of which 0 are rejected as outliers) from 2017-08-28.309 to 2017-08-30.329.
JPL Sentry2102 Aug. 302071-2107121.08702541e-05-6.24-6.280Computed at 13:54 Aug. 30th Pacific time based on 24 observations spanning 2.0200 days (2017-Aug-28.30822 to 2017-Aug-30.32825). Diameter approximately 0.010 km. from weighted mean H=27.75.
Assessment postings were noted by A/CC on 30 Aug. & 1 Sept.   -   References: MPEC 2017-Q159
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.
Assessment postings were noted by A/CC on 23 Aug., 25 Aug., 26 Aug. & 22 Sept.   -   References: MPEC 2017-Q97 plus DOUs 2017-Q114, 2017-Q117 & 2017-S93
2017 QF3JPL Sentry1546 Sept. 102043-2101283.19720445e-05-5.69-6.090Computed at 08:05 Sept. 10th Pacific time based on 23 observations spanning 4.6175 days (2017-Aug-17.3729 to 2017-Aug-21.99036). Diameter approximately 0.009 km. from weighted mean H=27.84.
NEODyS1546 Sept. 102035-2112452.1e-06-7.01-7.730Based on 23 optical observations (of which 1 are rejected as outliers) from 2017-08-17.374 to 2017-08-21.991.
Assessment postings were noted by A/CC on 22 Aug. & 10 Sept.   -   References: MPEC 2017-Q89 plus DOU 2017-R44
2017 PL26NEODyS1540 Sept. 162081-2116304.22e-06-4.33-4.530Based on 208 optical observations (of which 9 are rejected as outliers) from 2017-06-21.528 to 2017-08-28.824.
JPL Sentry1633 Sept. 132081-2116164.0656649e-06-4.35-4.650Computed at 07:57 Sept. 13th Pacific time based on 205 observations spanning 68.296 days (2017-Jun-21.52716 to 2017-Aug-28.82329). Diameter approximately 0.130 km. from weighted mean H=22.14.
Assessment postings were noted by A/CC on 22 Aug., 23 Aug., 24 Aug., 26 Aug., 27 Aug., 28 Aug., 29 Aug., 30 Aug., 1 Sept., 7 Sept., 13 Sept. & 16 Sept.   -   References: DOUs 2017-Q90, 2017-Q98, 2017-Q104, 2017-Q117, 2017-Q129, 2017-Q131, 2017-Q141, 2017-Q151, 2017-R41 & 2017-R52
2017 OD69NEODyS2202 Sept. 82042-2107101.32e-09-6.46-7.080Based on 12 optical observations (of which 0 are rejected as outliers) from 2017-07-30.961 to 2017-08-02.907.
JPL Sentry1549 Sept. 82051-211653.1913e-09-6.01-6.310Computed at 08:10 Sept. 8th Pacific time based on 12 observations spanning 2.9462 days (2017-Jul-30.95984 to 2017-Aug-02.90605). Diameter approximately 0.336 km. from weighted mean H=20.19.
Assessment postings were noted by A/CC on 8 Sept.   -   References: DOU 2017-R42
2017 MB1JPL Sentry1630 Sept. 222098-209811.950e-07-3.46-3.460Computed at 09:15 Sept. 22nd Pacific time based on 433 observations spanning 35.795 days (2017-Jun-19.31418 to 2017-Jul-25.109676). Diameter approximately 0.700 km. from weighted mean H=18.80.
NEODyS1540 Sept. 1209815.38e-08-4.21-4.210Based on 437 optical observations (of which 13 are rejected as outliers) from 2017-06-19.315 to 2017-07-25.110.
Assessment postings were noted by A/CC on 30 Aug., 1 Sept. & 22 Sept.   -   References: DOU 2017-Q151
2017 FW128NEODyS1530 Aug. 25207213.4e-10-10.82-10.820Based on 55 optical observations (of which 0 are rejected as outliers) from 2017-03-20.340 to 2017-04-05.343.
An assessment posting was noted by A/CC on 25 Aug.   -   References: DOU 2017-Q114
2017 BW30NEODyS1700 Aug. 262093-211532.18e-10-9.33-9.460Based on 55 optical observations (of which 1 are rejected as outliers) from 2017-01-15.656 to 2017-02-06.173.
An assessment posting was noted by A/CC on 26 Aug.   -   References: DOU 2017-Q117
2015 RN35NEODyS1530 Sept. 32074-2112122.81e-06-4.98-5.280Based on 68 optical observations (of which 0 are rejected as outliers) from 2015-09-09.517 to 2016-03-15.442.
JPL Sentry1520 Sept. 22092-211453.97553e-07-5.92-6.240Computed at 08:04 Sept. 2nd Pacific time based on 68 observations spanning 187.93 days (2015-Sep-09.51581 to 2016-Mar-15.441186). Diameter approximately 0.082 km. from weighted mean H=23.07.
Assessment postings were noted by A/CC on 27 Aug., 30 Aug., 31 Aug., 1 Sept., 2 Sept. & 3 Sept.   -   References: DOUs 2017-Q129, 2017-Q151, 2017-Q163, 2017-R05 & 2017-R12
2015 HW182JPL Sentry1634 Aug. 312018-21161785.22101e-08-6.75-7.540Computed at 21:11 April 14th Pacific time based on 9 observations spanning .99990 days (2015-Apr-18.31077 to 2015-Apr-19.31067). Diameter approximately 0.031 km. from weighted mean H=25.19.
An assessment posting was noted by A/CC on 31 Aug.   -   References: no recent MPECs
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.
JPL Sentry1537 Sept. 192018-21011931.981533e-07-4.50-5.470Computed at 13:25 April 6th Pacific time based on 9 observations spanning .99953 days (2015-Apr-18.27618 to 2015-Apr-19.27571). Diameter approximately 0.157 km. from weighted mean H=21.70.
Assessment postings were noted by A/CC on 19 Sept. & 20 Sept.   -   References: no recent MPECs
2012 TC4NEODyS1530 Sept. 222050-2112717.86e-04-4.19-4.640Based on 295 optical observations (of which 1 are rejected as outliers) from 2012-10-04.468 to 2017-09-19.282.
JPL Sentry0335 Sept. 62050-211270.0024333006-3.46-3.490Computed at 17:22 Sept. 5th Pacific time based on 234 observations spanning 1791.9 days (2012-Oct-04.467661 to 2017-Aug-31.3779). Diameter approximately 0.015 km. from weighted mean H=26.76.
Assessment postings were noted by A/CC on 6 Sept., 12 Sept., 16 Sept., 17 Sept., 19 Sept. & 22 Sept.   -   References: DOUs 2017-R31, 2017-R46, 2017-R52, 2017-R60, 2017-S01, 2017-S25, 2017-S93 & 2017-S96
2010 VR139JPL Sentry1550 Sept. 182017-2076158.94367e-08-6.38-6.440Computed at 11:46 April 7th Pacific time based on 7 observations spanning .06429 days (2010-Nov-14.33679 to 2010-Nov-14.40108). Diameter approximately 0.015 km. from weighted mean H=26.71.
An assessment posting was noted by A/CC on 18 Sept.   -   References: no recent MPECs
2009 FZ4JPL Sentry1537 Sept. 192017-21164012.4872157e-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 19 Sept.   -   References: no recent MPECs
2008 EM68JPL Sentry1821 Sept. 142018-211611101.35374692e-05-5.13-5.470Computed at 00:27 April 7th Pacific time based on 12 observations spanning .11019 days (2008-Mar-08.25164 to 2008-Mar-08.36183). Diameter approximately 0.010 km. from weighted mean H=27.72.
Assessment postings were noted by A/CC on 3 Sept., 9 Sept., 11 Sept., 12 Sept., 13 Sept. & 14 Sept.   -   References: no recent MPECs
2006 UJ185NEODyS1537 Sept. 192083-2114152.22e-05-6.01-6.130Based on 42 optical observations (of which 1 are rejected as outliers) from 2006-10-28.290 to 2017-09-17.511.
JPL Sentry1550 Sept. 182083-211492.502842e-05-6.14-6.380Computed at 08:27 Sept. 18th Pacific time based on 42 observations spanning 3977.2 days (2006-Oct-28.28933 to 2017-Sep-17.51067). Diameter approximately 0.009 km. from weighted mean H=27.90.
Assessment postings were noted by A/CC on 18 Sept. & 19 Sept.   -   References: DOU 2017-S25
C   L   E   A   R   E   D
2017 RX2JPL Sentry1707 Sept. 20R E M O V E DRisk listing removed at 1633 UTC Sept. 20th.
Assessment postings were noted by A/CC on 17 Sept., 19 Sept. & 20 Sept.   -   References: MPEC 2017-S17 plus DOUs 2017-S55 & 2017-S85
2017 RO2NEODyS1537 Sept. 19R E M O V E D
JPL Sentry1550 Sept. 18R E M O V E DRisk listing removed at 1500 UTC Sept. 18th.
Assessment postings were noted by A/CC on 17 Sept., 18 Sept. & 19 Sept.   -   References: MPEC 2017-S09 plus DOUs 2017-S25 & 2017-S55
2017 RLJPL Sentry1633 Sept. 13R E M O V E DRisk listing removed at 1451 UTC Sept. 13th.
NEODyS1731 Sept. 9R E M O V E D
Assessment postings were noted by A/CC on 5 Sept., 6 Sept., 7 Sept., 8 Sept., 9 Sept., 10 Sept., 11 Sept. & 13 Sept.   -   References: MPEC 2017-R33 plus DOUs 2017-R41, 2017-R42, 2017-R43, 2017-R44, 2017-R46, 2017-R52, 2017-R60, 2017-S03, 2017-S55, 2017-S85 & 2017-S93
2017 QU32NEODyS1540 Sept. 1R E M O V E D
Assessment postings were noted by A/CC on 30 Aug. & 1 Sept.   -   References: MPEC 2017-Q148 plus DOU 2017-Q163
2017 QD3JPL Sentry1530 Aug. 22R E M O V E DRisk listing removed at 1504 UTC Aug. 22nd.
An assessment posting was noted by A/CC on 22 Aug.   -   References: MPEC 2017-Q84 plus DOUs 2017-Q90, 2017-Q151 & 2017-R05
2017 PV26NEODyS1549 Sept. 8R E M O V E D
JPL Sentry1634 Aug. 31R E M O V E DRisk listing removed at 1447 UTC Aug. 31st.
Assessment postings were noted by A/CC on 28 Aug., 29 Aug., 30 Aug., 31 Aug., 1 Sept., 4 Sept. & 8 Sept.   -   References: DOUs 2017-Q131, 2017-Q141, 2017-Q163, 2017-R26, 2017-R42, 2017-R52 & 2017-S85
2017 MB9NEODyS1530 Aug. 25R E M O V E D
JPL Sentry1500 Aug. 25R E M O V E DRisk listing removed at 1449 UTC Aug. 25th.
Assessment postings were noted by A/CC on 25 Aug.   -   References: DOU 2017-Q114
2015 MC131NEODyS1700 Aug. 26R E M O V E D
JPL Sentry1540 Aug. 26R E M O V E DRisk listing removed at 1454 UTC Aug. 26th.
Assessment postings were noted by A/CC on 26 Aug.   -   References: DOU 2017-Q117

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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