A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted During September 2007

Compiled at 2304 UTC on 30 September 2007


<< August 2007 CRT | CRT Archive Index | October 2007 CRT >>

> Today's risk monitoring & other observing news <

Something missing? Here are 99942 Apophis (2004 MN4) and 144898 2004 VD17. Check the archives for others.

Note that the time horizon for JPL is 100 years from today and for NEODyS is now usually the year 2090.
For the latest official risk assessments, and for explanations of the terminology, see the JPL NEO Program Sentry and NEODyS CLOMON (backup) risk pages.
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
2007 SR11Sentry1616 Sept. 282017-2107103.9e-08-5.60-6.090Analysis based on 22 observations spanning 1.1249 days (2007-Sep-26.34262 to 2007-Sep-27.46749). Diameter approximately 0.140 km. from mean, weighted H=21.9.
NEODyS1432 Sept. 292017-207169.71e-09-6.00-6.130Based on 22 optical observations (of which 0 are rejected as outliers) from 2007/09/26.343 to 2007/09/27.468.
Assessment postings were noted by A/CC on 28 Sept. & 29 Sept.   -   References: MPEC 2007-S62
2007 SP11Sentry2358 Sept. 272013-2106862.6e-07-3.50-4.120Analysis based on 12 observations spanning 2.0272 days (2007-Sep-25.46397 to 2007-Sep-27.49121). Diameter approximately 0.560 km. from mean, weighted H=18.9.
NEODyS2117 Sept. 282008-207371.16e-07-1.93-1.930Based on 12 optical observations (of which 1 are rejected as outliers) from 2007/09/25.465 to 2007/09/27.492.
Assessment postings were noted by A/CC on 27 Sept. & 28 Sept.   -   References: MPEC 2007-S60
2007 SN6Sentry1423 Sept. 302022-205922.3e-06-5.04-5.140Analysis based on 20 observations spanning 10.884 days (2007-Sep-19.28894 to 2007-Sep-30.17302). Diameter approximately 0.036 km. from mean, weighted H=24.9.
NEODyS1423 Sept. 302022-208542.8e-06-4.92-4.990Based on 20 optical observations (of which 0 are rejected as outliers) from 2007/09/19.290 to 2007/09/30.174.
Assessment postings were noted by A/CC on 24 Sept., 25 Sept. & 30 Sept.   -   References: MPEC 2007-S42 plus DOUs 2007-S48 & 2007-S70
2007 RY19Sentry1416 Sept. 252024-2106406.5e-05-3.26-3.800Analysis based on 40 observations spanning 10.813 days (2007-Sep-14.35284 to 2007-Sep-25.16566). Diameter approximately 0.110 km. from mean, weighted H=22.5.
NEODyS0344 Sept. 262024-2090343.18e-05-3.52-3.810Based on 40 optical observations (of which 0 are rejected as outliers) from 2007/09/14.354 to 2007/09/25.166.
Assessment postings were noted by A/CC on 15 Sept., 16 Sept., 17 Sept., 19 Sept., 20 Sept., 22 Sept., 25 Sept. & 26 Sept.   -   References: MPEC 2007-R88 plus DOUs 2007-S01, 2007-S03, 2007-S18, 2007-S30, 2007-S40 & 2007-S48
2007 RT9NEODyS1336 Sept. 17R E M O V E D
Sentry1337 Sept. 172028-208843.2e-09-5.91-6.230Analysis based on 38 observations spanning 5.9019 days (2007-Sep-10.28434 to 2007-Sep-16.186248). Diameter approximately 0.390 km. from mean, weighted H=19.7.
Assessment postings were noted by A/CC on 12 Sept., 13 Sept., 14 Sept., 15 Sept., 16 Sept. & 17 Sept.   -   References: MPEC 2007-R49 plus DOUs 2007-R62, 2007-R72, 2007-R83, 2007-S01 & 2007-S03
C   L   E   A   R   E   D
2007 SQ6Sentry1333 Sept. 24R E M O V E DRisk listing removed at 1029 UTC 24 Sept.
Assessment postings were noted by A/CC on 24 Sept.   -   References: MPEC 2007-S45 plus DOUs 2007-S46, 2007-S61 & 2007-S70
2007 SJSentry1423 Sept. 30R E M O V E DRisk listing removed at 1102 UTC 30 Sept.
NEODyS1423 Sept. 30R E M O V E D
Assessment postings were noted by A/CC on 19 Sept., 20 Sept., 22 Sept., 23 Sept., 24 Sept. & 30 Sept.   -   References: MPEC 2007-S17 plus DOUs 2007-S30, 2007-S40, 2007-S41, 2007-S46 & 2007-S70
2007 RT146NEODyS1401 Sept. 20R E M O V E D
Sentry1402 Sept. 20R E M O V E DRisk listing removed at 1343 UTC 20 Sept.
Assessment postings were noted by A/CC on 18 Sept., 19 Sept. & 20 Sept.   -   References: MPEC 2007-S14 plus DOUs 2007-S30, 2007-S40, 2007-S59 & 2007-S69
2007 RQ133NEODyS1401 Sept. 20R E M O V E D
Sentry1402 Sept. 20R E M O V E DRisk listing removed at 1254 UTC 20 Sept.
Assessment postings were noted by A/CC on 17 Sept., 18 Sept. & 20 Sept.   -   References: MPEC 2007-S11 plus DOUs 2007-S30 & 2007-S59
2007 RA20Sentry1457 Sept. 16R E M O V E DRisk listing removed at 1242 UTC 16 Sept.
Assessment postings were noted by A/CC on 15 Sept. & 16 Sept.   -   References: MPEC 2007-R90 plus DOUs 2007-S01, 2007-S12, 2007-S37 & 2007-S58
2007 RX19Sentry1457 Sept. 16R E M O V E DRisk listing removed at 1402 UTC 16 Sept.
Assessment postings were noted by A/CC on 15 Sept. & 16 Sept.   -   References: MPEC 2007-R87 plus DOUs 2007-S01, 2007-S40 & 2007-S61
2007 RT12Sentry1341 Sept. 14R E M O V E DRisk listing removed at 1329 UTC 14 Sept.
Assessment postings were noted by A/CC on 13 Sept. & 14 Sept.   -   References: MPEC 2007-R68 plus DOUs 2007-R72, 2007-R83, 2007-S12 & 2007-S30
2007 RV9NEODyS1404 Sept. 18R E M O V E D
Sentry1404 Sept. 18R E M O V E DRisk listing removed at 1017 UTC 18 Sept.
Assessment postings were noted by A/CC on 12 Sept., 13 Sept., 14 Sept., 15 Sept., 16 Sept., 17 Sept. & 18 Sept.   -   References: MPEC 2007-R51 plus DOUs 2007-R62, 2007-R72, 2007-R83, 2007-S01, 2007-S03, 2007-S12, 2007-S18, 2007-S30 & 2007-S70
2007 RU9Sentry1450 Sept. 28R E M O V E DRisk listing removed at 1012 UTC 28 Sept.
NEODyS1450 Sept. 28R E M O V E D
Assessment postings were noted by A/CC on 11 Sept., 12 Sept., 13 Sept., 14 Sept., 15 Sept., 16 Sept., 17 Sept., 18 Sept., 19 Sept., 20 Sept., 21 Sept. & 28 Sept.   -   References: MPEC 2007-R50 plus DOUs 2007-R54, 2007-R62, 2007-R72, 2007-R83, 2007-S01, 2007-S03, 2007-S12, 2007-S18, 2007-S30, 2007-S37 & 2007-S61
2007 RR9NEODyS1421 Sept. 13R E M O V E D
Sentry1421 Sept. 13R E M O V E DRisk listing removed at 1251 UTC 13 Sept.
Assessment postings were noted by A/CC on 11 Sept., 12 Sept. & 13 Sept.   -   References: MPEC 2007-R47 plus DOUs 2007-R54, 2007-R62, 2007-R72, 2007-R83, 2007-S01, 2007-S03, 2007-S12, 2007-S30 & 2007-S61
2007 RA9Sentry1346 Sept. 11R E M O V E DRisk listing removed at 1115 UTC 11 Sept.
Assessment postings were noted by A/CC on 10 Sept. & 11 Sept.   -   References: MPEC 2007-R41 plus DOUs 2007-R42, 2007-S03 & 2007-S46
2007 RF2NEODyS1510 Sept. 9R E M O V E D
Sentry1421 Sept. 13R E M O V E DRisk listing removed at 0958 UTC 13 Sept.
Assessment postings were noted by A/CC on 6 Sept., 7 Sept., 9 Sept., 10 Sept., 11 Sept., 12 Sept. & 13 Sept.   -   References: MPEC 2007-R23 plus DOUs 2007-R26, 2007-R30, 2007-R34, 2007-R37, 2007-R42, 2007-R54, 2007-R62, 2007-R72, 2007-R83, 2007-S01, 2007-S12, 2007-S30 & 2007-S48
2007 RS1NEODyS1412 Sept. 7R E M O V E D
Sentry1412 Sept. 7R E M O V E DRisk listing removed at 0956 UTC 7 Sept.
Assessment postings were noted by A/CC on 5 Sept., 6 Sept. & 7 Sept.   -   References: MPEC 2007-R21 plus DOU 2007-R30
2007 RJ1Sentry1417 Sept. 5R E M O V E DRisk listing removed at 1007 UTC 5 Sept.
Assessment postings were noted by A/CC on 4 Sept. & 5 Sept.   -   References: MPEC 2007-R13 plus DOUs 2007-R19, 2007-R26, 2007-R30, 2007-R32, 2007-R37, 2007-R42, 2007-R62, 2007-R72, 2007-R83, 2007-S01 & 2007-S12
2007 RF1Sentry1417 Sept. 5R E M O V E DRisk listing removed at 1210 UTC 5 Sept.
Assessment postings were noted by A/CC on 4 Sept. & 5 Sept.   -   References: MPEC 2007-R10 plus DOUs 2007-R19 & 2007-R26
2007 RE1NEODyS1409 Sept. 10R E M O V E D
Sentry1410 Sept. 10R E M O V E DRisk listing removed at 1000 UTC 10 Sept.
Assessment postings were noted by A/CC on 4 Sept., 5 Sept., 6 Sept., 7 Sept., 8 Sept. & 10 Sept.   -   References: MPEC 2007-R09 plus DOUs 2007-R19, 2007-R26, 2007-R30, 2007-R32, 2007-R37, 2007-R83, 2007-S30 & 2007-S37

Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale

For a list of all risk-rated objects currently in view, see our ephemerides page.

An impact solution, also known as a "virtual impactor" (VI), is not a prediction but rather a possibility derived from an 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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