A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted During August 2008

Compiled at 2357 UTC on 31 August 2008

<< July 2008 CRT | CRT Archive Index | September 2008 CRT >>

[ Today's risk monitoring & other observing news | object risks cleared in August | Ephemerides for Active Risk-Rated Objects ]

Missing something? 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 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

2008 PK9	NEODyS	1457 Aug. 9	2045	1	1.92e-08	-6.24	-6.24	0	Based on 17 optical observations (of which 0 are rejected as outliers) from 2008/08/08.462 to 2008/08/08.759.
	JPL Sentry	1457 Aug. 9	2045-2057	4	8.3e-08	-5.66	-5.84	0	Analysis based on 17 observations spanning .29787 days (2008-Aug-08.46082 to 2008-Aug-08.75869). Diameter approximately 0.080 km. from mean, weighted H=23.1.
	Assessment postings were noted by A/CC on 8 Aug. & 9 Aug. - References: MPECs 2008-P40 & 2008-P43

2008 PG1	JPL Sentry	1527 Aug. 4	2013-2107	97	1.1e-07	-4.73	-5.05	0	Analysis based on 9 observations spanning .69419 days (2008-Aug-03.38046 to 2008-Aug-04.07465). Diameter approximately 0.209 km. from mean, weighted H=21.1.
	An assessment posting was noted by A/CC on 4 Aug. - References: MPEC 2008-P14

2008 OO1	JPL Sentry	1539 Aug. 28	2107	1	1.6e-07	-6.85	-6.85	0	Analysis based on 42 observations spanning 31.710 days (2008-Jul-26.55201 to 2008-Aug-27.26171). Diameter approximately 0.041 km. from mean, weighted H=24.6.
	Assessment postings were noted by A/CC on 2 Aug., 3 Aug., 6 Aug., 11 Aug. & 28 Aug. - References: MPECs 2008-P06, 2008-P07, 2008-P31, 2008-P50 & 2008-Q45

2008 OO	JPL Sentry	1452 Aug. 29	2100	1	2.4e-07	-4.11	-4.11	0	Analysis based on 102 observations spanning 32.061 days (2008-Jul-26.09211 to 2008-Aug-27.15357). Diameter approximately 0.380 km. from mean, weighted H=19.7.
	NEODyS	1541 Aug. 5	R E M O V E D
	Assessment postings were noted by A/CC on 31 July, 2 Aug., 3 Aug., 4 Aug., 5 Aug., 13 Aug., 14 Aug., 19 Aug., 22 Aug., 26 Aug. & 29 Aug. - References: MPECs 2008-O57, 2008-P06, 2008-P07, 2008-P10, 2008-P25, 2008-P61, 2008-P62, 2008-Q01, 2008-Q09, 2008-Q15, 2008-Q40 & 2008-Q54

2008 LA	NEODyS	1613 Aug. 23	2058-2070	5	9.76e-05	-3.15	-3.15	0	Based on 84 optical observations (of which 1 are rejected as outliers) from 2008/06/01.170 to 2008/08/13.557.
	JPL Sentry	1502 Aug. 23	2058-2061	3	9.8e-05	-3.15	-3.15	0	Analysis based on 83 observations spanning 73.387 days (2008-Jun-01.16922 to 2008-Aug-13.555821). Diameter approximately 0.080 km. from mean, weighted H=23.1.
	Assessment postings were noted by A/CC on 23 Aug. - References: MPEC 2008-Q22
C L E A R E D
2008 QT11	JPL Sentry	1452 Aug. 29	R E M O V E D						Risk listing removed at 0851 UTC 29 Aug.
	Assessment postings were noted by A/CC on 28 Aug. & 29 Aug. - References: MPECs 2008-Q50 & 2008-Q54

2008 QS11	NEODyS	1513 Aug. 31	R E M O V E D
	JPL Sentry	1513 Aug. 31	R E M O V E D						Risk listing removed at 0901 UTC 31 Aug.
	Assessment postings were noted by A/CC on 28 Aug., 29 Aug. & 31 Aug. - References: MPECs 2008-Q46, 2008-Q54 & 2008-Q57

2008 QT3	JPL Sentry	1452 Aug. 29	R E M O V E D						Risk listing removed at 0851 UTC 29 Aug.
	NEODyS	1452 Aug. 29	R E M O V E D
	Assessment postings were noted by A/CC on 26 Aug., 27 Aug., 28 Aug. & 29 Aug. - References: MPECs 2008-Q41, 2008-Q44, 2008-Q45, 2008-Q54, 2008-Q55 & 2008-Q57

2008 QC1	JPL Sentry	1453 Aug. 26	R E M O V E D						Risk listing removed at 0850 UTC 26 Aug.
	Assessment postings were noted by A/CC on 25 Aug. & 26 Aug. - References: MPECs 2008-Q36, 2008-Q40, 2008-Q45, 2008-Q55 & 2008-Q57

2008 QY	JPL Sentry	1507 Aug. 30	R E M O V E D						Risk listing removed at 0857 UTC 30 Aug.
	NEODyS	1506 Aug. 30	R E M O V E D
	Assessment postings were noted by A/CC on 25 Aug., 26 Aug. & 30 Aug. - References: MPECs 2008-Q33 & 2008-Q55

2008 PR9	NEODyS	1449 Aug. 13	R E M O V E D
	JPL Sentry	1449 Aug. 13	R E M O V E D						Risk listing removed at 0903 UTC 13 Aug.
	Assessment postings were noted by A/CC on 9 Aug., 10 Aug. & 13 Aug. - References: MPECs 2008-P45, 2008-P61, 2008-Q02 & 2008-Q11

2008 PJ9	NEODyS	1433 Aug. 20	R E M O V E D
	JPL Sentry	1514 Aug. 16	R E M O V E D						Risk listing removed at 0850 UTC 16 Aug.
	Assessment postings were noted by A/CC on 8 Aug., 9 Aug., 11 Aug., 13 Aug., 16 Aug. & 20 Aug. - References: MPECs 2008-P39, 2008-P43, 2008-P50, 2008-P61, 2008-Q01, 2008-Q11, 2008-Q22, 2008-Q24 & 2008-Q55

2008 PW4	JPL Sentry	1457 Aug. 9	R E M O V E D						Risk listing removed at 0855 UTC 9 Aug.
	NEODyS	1457 Aug. 9	R E M O V E D
	Assessment postings were noted by A/CC on 6 Aug., 7 Aug. & 9 Aug. - References: MPECs 2008-P32, 2008-P43, 2008-P48, 2008-P57, 2008-P61, 2008-Q01 & 2008-Q15

2008 PK3	JPL Sentry	1451 Aug. 6	R E M O V E D						Risk listing removed at 0851 UTC 6 Aug.
	Assessment postings were noted by A/CC on 5 Aug. & 6 Aug. - References: MPECs 2008-P28, 2008-P31 & 2008-P61

2008 PH3	JPL Sentry	1451 Aug. 6	R E M O V E D						Risk listing removed at 0849 UTC 6 Aug.
	Assessment postings were noted by A/CC on 5 Aug. & 6 Aug. - References: MPECs 2008-P26, 2008-P31, 2008-P57, 2008-P61, 2008-P62 & 2008-Q22

2008 PF1	JPL Sentry	1457 Aug. 9	R E M O V E D						Risk listing removed at 0854 UTC 9 Aug.
	NEODyS	1457 Aug. 9	R E M O V E D
	Assessment postings were noted by A/CC on 4 Aug., 5 Aug., 7 Aug. & 9 Aug. - References: MPECs 2008-P13, 2008-P25, 2008-P34, 2008-P43, 2008-P50, 2008-P61, 2008-P62, 2008-P64, 2008-Q01, 2008-Q02 & 2008-Q09

2008 ON13	JPL Sentry	1516 Aug. 21	R E M O V E D						Risk listing removed at 0853 UTC 21 Aug.
	NEODyS	1516 Aug. 21	R E M O V E D
	Assessment postings were noted by A/CC on 4 Aug., 5 Aug., 13 Aug. & 21 Aug. - References: MPECs 2008-P11, 2008-P61, 2008-Q13, 2008-Q15 & 2008-Q44

2008 OB9	JPL Sentry	1437 Aug. 25	R E M O V E D						Risk listing removed at 0849 UTC 25 Aug.
	NEODyS	1359 Aug. 11	R E M O V E D
	Assessment postings were noted by A/CC on 31 July, 1 Aug., 2 Aug., 4 Aug., 5 Aug., 11 Aug., 14 Aug., 17 Aug., 18 Aug., 19 Aug., 22 Aug. & 25 Aug. - References: MPECs 2008-O64, 2008-P06, 2008-P10, 2008-P25, 2008-P50, 2008-P62, 2008-Q02, 2008-Q04, 2008-Q09, 2008-Q15, 2008-Q32 & 2008-Q44

2008 OQ8	NEODyS	1451 Aug. 6	R E M O V E D
	JPL Sentry	1451 Aug. 6	R E M O V E D						Risk listing removed at 0849 UTC 6 Aug.
	Assessment postings were noted by A/CC on 1 Aug. & 6 Aug. - References: MPECs 2008-O62, 2008-P02, 2008-P31, 2008-P50, 2008-Q09, 2008-Q15 & 2008-Q45

2008 OP8	NEODyS	1400 Aug. 4	R E M O V E D
	JPL Sentry	1400 Aug. 4	R E M O V E D						Risk listing removed at 0851 UTC 4 Aug.
	Assessment postings were noted by A/CC on 31 July, 1 Aug., 2 Aug. & 4 Aug. - References: MPECs 2008-O61, 2008-P02, 2008-P06, 2008-P10, 2008-P31, 2008-P34, 2008-P43, 2008-P48, 2008-P57, 2008-P62, 2008-Q01, 2008-Q11, 2008-Q15, 2008-Q22, 2008-Q32, 2008-Q45 & 2008-Q57

2008 OO8	JPL Sentry	1341 Aug. 2	R E M O V E D						Risk listing removed at 0852 UTC 2 Aug.
	NEODyS	1341 Aug. 2	R E M O V E D
	Assessment postings were noted by A/CC on 31 July, 1 Aug. & 2 Aug. - References: MPECs 2008-O60, 2008-P06, 2008-P07, 2008-P25, 2008-P31, 2008-P43, 2008-P62 & 2008-Q32

2008 OT7	NEODyS	1341 Aug. 2	R E M O V E D
	JPL Sentry	1326 Aug. 1	R E M O V E D						Risk listing removed at 0854 UTC 1 Aug.
	Assessment postings were noted by A/CC on 31 July, 1 Aug. & 2 Aug. - References: MPECs 2008-O56, 2008-P02, 2008-P06, 2008-P07 & 2008-P43

2008 OS7	JPL Sentry	1419 Aug. 3	R E M O V E D						Risk listing removed at 0852 UTC 3 Aug.
	NEODyS	1326 Aug. 1	R E M O V E D
	Assessment postings were noted by A/CC on 31 July, 1 Aug., 2 Aug. & 3 Aug. - References: MPECs 2008-O55, 2008-P02, 2008-P06, 2008-P07, 2008-P10, 2008-P25, 2008-P31, 2008-P43, 2008-P50, 2008-P62, 2008-Q02, 2008-Q04, 2008-Q09, 2008-Q11, 2008-Q40 & 2008-Q55

2008 OC6	JPL Sentry	1454 Aug. 22	R E M O V E D						Risk listing removed at 0853 UTC 22 Aug.
	NEODyS	1454 Aug. 22	R E M O V E D
	Assessment postings were noted by A/CC on 31 July, 1 Aug. & 22 Aug. - References: MPECs 2008-P02 & 2008-Q15

2008 OY2	JPL Sentry	1326 Aug. 1	R E M O V E D						Risk listing removed at 0849 UTC 1 Aug.
	An assessment posting was noted by A/CC on 1 Aug. - References: MPECs 2008-P02, 2008-P06, 2008-P10 & 2008-P43

2008 OX2	JPL Sentry	1341 Aug. 2	R E M O V E D						Risk listing removed at 0902 UTC 2 Aug.
	NEODyS	1341 Aug. 2	R E M O V E D
	Assessment postings were noted by A/CC on 2 Aug. - References: MPECs 2008-P06, 2008-P07, 2008-P10, 2008-P25, 2008-P31, 2008-P48, 2008-P62, 2008-Q01, 2008-Q02, 2008-Q09, 2008-Q11, 2008-Q15, 2008-Q22, 2008-Q32, 2008-Q40, 2008-Q54 & 2008-Q57

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

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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