Compiled at 2355 UTC on 31 July 2007
<< June 2007 CRT | CRT Archive Index | August 2007 CRT >>
> Today's Risk Monitoring & Other Minor Object News <
Something missing? Here's where to look for info about 99942 Apophis (2004 MN4) and 144898 2004 VD17 . Check the archives for others.
Time & Day
Notes for Latest Risk Assessments
|2007 OG3||Sentry||2259 July 22||2040||1||7.4e-10||-6.67||-6.67||0||Analysis based on 17 observations spanning 2.9331 days (2007-Jul-19.44939 to 2007-Jul-22.382539).|
|NEODyS||1917 July 23||2028-2051||2||5.06e-09||-5.64||-5.64||0||Based on 17 optical observations (of which 0 are rejected as outliers) from 2007/07/19.450 to 2007/07/22.383.||Risk news reports: 22 July & 23 July - References: MPEC 2007-O38|
|2007 MB24||NEODyS||1329 July 1||R E M O V E D|
|Sentry||1329 July 1||R E M O V E D||Risk listing removed at 1008 UTC 1 July||Risk news reports: 1 July - References: no MPECs except DOUs 2007-N01, 2007-N02, 2007-N03, 2007-N12, 2007-N13, 2007-N15, 2007-N20, 2007-N21, 2007-N22, 2007-N24, 2007-N30, 2007-N40, 2007-N41, 2007-O02, 2007-O04, 2007-O11, 2007-O15, 2007-O33, 2007-O36, 2007-O40, 2007-O42, 2007-O43, 2007-O50, 2007-O52 & 2007-O53|
|2007 LQ19||NEODyS||1439 July 15||R E M O V E D|
|Sentry||1439 July 15||R E M O V E D||Risk listing removed at 1000 UTC 15 July||Risk news reports: 3 July & 15 July - References: no MPECs except DOUs 2007-N03, 2007-N41 & 2007-O52|
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 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 Once superceded or eliminated, a former impact solution has zero relevance to an object's risk.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 about this.