Contents  on 29 November '07

Resources:

The latest news: framed access (best), RSS news feed RSS news feed (flags updates), or redirection - Note: A/CC has a main Web site and a backup site, which now has its own backup RSS news feed.

Navigation tips: Use the << and >> arrows on the menus for each regular section (Observers, Risks, etc.) to move to the previous and next day's news for that section. Use the Index menu item to access specific days this year through a calendar interface. And use the all-up news archive to access news from any time since A/CC began in early 2002. To keep track of what's new each day, watch the Chronology section.

NEOCP Activity  on 29 November '07

The MPC's NEO Confirmation Page has 1 listing: 1 new

When last checked at 2355 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had one new listing. This was a "one nighter."

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object by Birtwhistle et al. at Suno Observatory.

New MPECs  on 29 November '07

Minor Planet Electronic Circulars

As of last check at 2357 UTC, there has been one MPEC issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


<< DOU on 29 Nov. '07 >>  MPEC 2007-W79 - "07:09 UT" - Daily Orbit Update

Observers  on 29 November '07

Nineteen observing facilities appear in today's MPEC.

CodeObserver / observatory
B03Alter Satzberg Obs. in Austria, 3 in MPEC 2007-W79 -- 2007 VX7, 2007 VD3, 2007 SV11
A50Andrushivka Obs. in the Ukraine, 1 in MPEC 2007-W79 -- 138852
H55Astronomical Research Obs. (ARO) in Illinois, 16 in MPEC 2007-W79 -- 2007 WZ4, 2007 WV4, 2007 WU4, 2007 WP3, 2007 WB, 2007 VX137, 2007 VW137, 2007 VV6, 2007 VO243, 2007 VL8, 2007 VK184, 2007 VD138, 2007 UX1, 2007 TZ18, 2007 RP133, 2007 RD20
J51Atlante Obs. in the Canary Islands, 1 in MPEC 2007-W79 -- 153591
I09Cerro Armazones Obs., 6 in MPEC 2007-W79 -- 2007 VY7, 2007 VT6, 2007 VD12, 2007 TD71, 2007 GS3, 2006 US216
151Eschenberg Obs. in Switzerland, 3 in MPEC 2007-W79 -- 2007 VW137, 2007 VM184, 1996 TY11
734Farpoint Obs. in Kansas, 1 in MPEC 2007-W79 -- 2007 WB5
H51Greiner Research Obs. in Wisconsin, 1 in MPEC 2007-W79 -- 2007 VM184
A17Guidestar Obs. in Germany, 4 in MPEC 2007-W79 -- 2007 WZ4, 2007 WV4, 66272, 152742
J37Huelva Obs. in Spain, 1 in MPEC 2007-W79 -- 3200
J40Malaga Obs. in Spain, 1 in MPEC 2007-W79 -- 1036
608NEAT's USAF Haleakala telescope in Hawaii, 1 in MPEC 2007-W79 -- 2001 FR128
A13Naef Obs. in Switzerland, 2 in MPEC 2007-W79 -- 2007 UX1, 1996 TY11
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 7 in MPEC 2007-W79 -- 2007 VR183, 2007 US6, 2007 SE11, 2007 PU11, 21374, 18736, 153591
204Schiaparelli Obs. in Italy, 1 in MPEC 2007-W79 -- 2007 VE191
D21Shenton Park Obs. in Western Australia, 1 in MPEC 2007-W79 -- 2007 VE191
E12Siding Spring Survey (SSS) in New South Wales, 3 in MPEC 2007-W79 -- 2007 WW4, 2007 VL243, 2007 VH184
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2007-W79 -- 2007 VV6
291Spacewatch 1.8m telescope in Arizona, 1 in MPEC 2007-W79 -- 2007 EH88

Impact Risk Monitoring  on 29 November '07

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2355 UTC)
See the CRT page for a list of all objects rated recently as risks.
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
When
Noted
UTC
0000T0000
Year
Range

VI
#
000NN00
Prob
Cum
T0000
PS
Cum
T0000
PS
Max

T
S


Notes for Today's Latest Risk Assessments
2007 WV4JPL Sentry1419R E M O V E DJPL: Risk listing removed at 1222 UTC.
NEODyS1419R E M O V E D
2007 VE191JPL Sentry1419201513.2e-08-5.90-5.900JPL: "Analysis based on 67 observations spanning 13.250 days (2007-Nov-15.26603 to 2007-Nov-28.51619)." Diameter approximately 0.063 km. from mean, weighted H=23.7.
NEODyS1419R E M O V E D
2007 VK184NEODyS14202046-2074205.92e-05-2.63-2.870NEODyS: "Based on 68 optical observations (of which 0 are rejected as outliers) from 2007/11/12.140 to 2007/11/27.185."
JPL Sentry14192046-2062196.0e-05-2.63-2.860JPL: "Analysis based on 68 observations spanning 15.045 days (2007-Nov-12.13904 to 2007-Nov-27.183976)." Diameter approximately 0.130 km. from mean, weighted H=22.0.

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

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" to learn more.

Chronology  on 29 November '07

Times are UTC for when the items were noted or added by The Tracking News.

1420Noted that NEODyS has updated its 2007 VK184 risk assessment - see above
1419Noted that JPL Sentry has updated its 2007 VE191 risk assessment - see above
Noted that NEODyS has removed 2007 VE191 as an impact risk - see above
Noted that JPL Sentry has updated its 2007 VK184 risk assessment - see above
Noted that JPL Sentry has removed 2007 WV4 as an impact risk - see above
Noted that NEODyS has removed 2007 WV4 as an impact risk - see above
Grabbed MPEC 2007-W79 - Daily Orbit Update - see above
0135The NEOCP has become active