Contents  on 18 November '08

Resources:

The latest A/CC news is available via framed access, RSS news feed RSS news feed, or redirection. - Note: A/CC has a main Web site and also a backup site with its own duplicate 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 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 18 November '08

The MPC's NEO Confirmation Page is currently empty

The NEOCP is currently empty. There were eight listings noted earlier today.

New MPECs  on 18 November '08

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been seven MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2008-W12 - "16:30 UT" - 2008 WE


MPEC 2008-W11 - "16:27 UT" - 2008 WD


MPEC 2008-W10 - "16:24 UT" - 2008 WC


MPEC 2008-W09 - "16:18 UT" - 2008 WB


<< DOU on 18 Nov. '08 >>  MPEC 2008-W08 - "07:06 UT" - Daily Orbit Update


MPEC 2008-W07 - "00:29 UT" - 2008 UD253 = 1998 XL27


MPEC 2008-W06 - "00:02 UT" - 2005 VA123, 2007 TG422, 2007 XV50, 2008 CS190, 2008 CT190

Observers  on 18 November '08

A total of 27 observing facilities appear in today's MPECs.

CodeObserver / observatory
B37Ametlla del Valles Obs. in Spain, 12 in MPEC 2008-W08 -- 2008 SQ1, 2008 SP7, 2005 WS55, 2005 TZ51, 1994 AW1, 85774, 65996, 36236, 198856, 188452, 16834, 162679
A50Andrushivka Obs. in the Ukraine, 1 in MPEC 2008-W08 -- 136923
J51Atlante Obs. in the Canary Islands, 1 in MPEC 2008-W08 -- 162900
B75Betelgeuse Station, 1 in MPEC 2008-W08 -- 162900
B09Capannoli Obs. in Italy, 1 in MPEC 2008-W07 -- 2008 UD253
B20Carmelita Obs. in Spain, 1 in MPEC 2008-W07 -- 2008 UD253
703Catalina Sky Survey (CSS) in Arizona, 17 in MPECs 2008-W07, 2008-W08, 2008-W09, 2008-W10, 2008-W11 & 2008-W12 -- 2008 WE, 2008 WD, 2008 WC, 2008 WB, 2008 VG14, 2008 UD253, 2008 SQ1, 2008 QY, 2008 MR1, 2004 SB20, 65996, 194268, 194126, 155110, 141079, 137799, 3200
807&Lawrence H. Wasserman via Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2008-W08 -- 2002 OM4
A77Chante-Perdrix Obs. in France, 2 in MPEC 2008-W08 -- 2008 SX245, 163000
448Desert Moon Obs. in New Mexico, 6 in MPEC 2008-W08 -- 2008 VG14, 2008 VE, 2008 UE7, 2008 TK157, 2008 SX7, 2006 GQ2
B19Iluro Obs. in Spain, 4 in MPEC 2008-W08 -- 2006 SZ217, 85774, 162900, 142348
B15Inastars Obs. in Germany, 1 in MPEC 2008-W07 -- 2008 UD253
695Kitt Peak Natl. Obs. (KPNO) in Arizona, 5 in MPEC 2008-W06 -- 2008 CT190, 2008 CS190, 2007 XV50, 2007 TG422, 2005 VA123
J75La Sagra Obs. in Spain, 1 in MPEC 2008-W07 -- 2008 UD253
620Mallorca Obs. on Mallorca, 1 in MPEC 2008-W07 -- 2008 UD253
A24New Millennium Obs. in Italy, 1 in MPEC 2008-W07 -- 2008 UD253
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 4 in MPEC 2008-W08 -- 2008 SH82, 2008 QT3, 2005 TZ51, 1996 TE9
J53Posadas Obs. in Spain, 4 in MPEC 2008-W08 -- 2008 SQ1, 2005 TZ51, 3360, 1865
473Remanzacco Obs. in Italy, 1 in MPEC 2008-W09 -- 2008 WB
854Sabino Canyon Obs. in Arizona, 5 in MPECs 2008-W07, 2008-W09, 2008-W10, 2008-W11 & 2008-W12 -- 2008 WE, 2008 WD, 2008 WC, 2008 WB, 2008 UD253
104San Marcello Pistoiese Obs. in Italy, 1 in MPEC 2008-W07 -- 2008 UD253
H36Sandlot Obs. in Kansas, 2 in MPECs 2008-W07 & 2008-W09 -- 2008 WB, 2008 UD253
204Schiaparelli Obs. in Italy, 2 in MPECs 2008-W07 & 2008-W09 -- 2008 WB, 2008 UD253
E12Siding Spring Survey in New South Wales, 1 in MPEC 2008-W07 -- 2008 UD253
691Spacewatch 0.9m telescope in Arizona, 2 in MPEC 2008-W08 -- 2008 UP100, 90075
291Spacewatch 1.8m telescope in Arizona, 18 in MPECs 2008-W07 & 2008-W08 -- 2008 VR4, 2008 VQ4, 2008 VL14, 2008 VB1, 2008 UZ91, 2008 UT99, 2008 US5, 2008 UP100, 2008 UF7, 2008 UD253, 2008 TD27, 2008 TD2, 2008 TA1, 2008 SV11, 2008 SR7, 2008 SR1, 2008 RM98, 2004 TQ13
6735Jim Young via Table Mtn. Obs. in southern California, 2 in MPECs 2008-W07 & 2008-W09 -- 2008 WB, 2008 UD253
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 18 November '08

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2358 UTC)
See the CRT page for a list of all objects rated recently as risks and our ephemerides page for a list of risk-listed objects under current observation.
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
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
2008 WCJPL Sentry22262021-2106201.1e-07-7.57-8.260JPL: "Analysis based on 11 observations spanning .17467 days (2008-Nov-18.18121 to 2008-Nov-18.35588)." Diameter approximately 0.021 km. from mean, weighted H=26.1.
2008 VL14JPL Sentry22262060-210749.4e-07-3.75-3.950JPL: "Analysis based on 29 observations spanning 8.8674 days (2008-Nov-09.2656 to 2008-Nov-18.13303)." Diameter approximately 0.215 km. from mean, weighted H=21.0.
NEODyS14152060-207631.03e-06-3.70-3.900NEODyS: "Based on 30 optical observations (of which 1 are rejected as outliers) from 2008/11/09.266 to 2008/11/18.134."
2008 VR4JPL Sentry2226210315.2e-10-8.55-8.550JPL: "Analysis based on 18 observations spanning 11.133 days (2008-Nov-07.06772 to 2008-Nov-18.20042)." Diameter approximately 0.088 km. from mean, weighted H=22.9.

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 18 November '08

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

2226Noted that JPL Sentry has updated its 2008 VL14 risk assessment - see above
Noted that JPL Sentry has updated its 2008 VR4 risk assessment - see above
Noted that JPL Sentry has posted 2008 WC as an impact risk - see above
The NEOCP has become empty
1833The NEOCP has become active
1740Grabbed MPEC 2008-W09 - 2008 WB - see above
Grabbed MPEC 2008-W10 - 2008 WC - see above
Grabbed MPEC 2008-W11 - 2008 WD - see above
Grabbed MPEC 2008-W12 - 2008 WE - see above
The NEOCP has become empty
1415Noted that NEODyS has updated its 2008 VL14 risk assessment - see above
Grabbed MPEC 2008-W08 - Daily Orbit Update - see above
0127Grabbed MPEC 2008-W07 - 2008 UD253 = 1998 XL27 - see above
0020Grabbed MPEC 2008-W06 - 2005 VA123, 2007 TG422, 2007 XV50, 2008 CS190, 2008 CT190 - see above