Contents  on 11 October '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 11 October '08

The MPC's NEO Confirmation Page has 7 listings: 7 updated

When last checked at 2358 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had seven updated listings. Of these, three were "one nighters."

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 11 October '08

Minor Planet Electronic Circulars

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


MPEC 2008-T122 - "13:27 UT" - 2008 QD4


<< DOU on 11 Oct. '08 >>  MPEC 2008-T121 - "06:11 UT" - Daily Orbit Update

Observers  on 11 October '08

Fourteen observing facilities appear in today's MPECs.

CodeObserver / observatory
B03Alter Satzberg Obs. in Austria, 7 in MPEC 2008-T121 -- 2008 TV25, 2008 TM10, 2008 TK9, 2008 TF4, 2008 TD4, 2008 TC4, 2008 TA4
H55Astronomical Research Obs. (ARO) in Illinois, 21 in MPEC 2008-T121 -- 2008 TZ, 2008 TY9, 2008 TV25, 2008 TP10, 2008 TF9, 2008 TE4, 2008 TC2, 2008 TB4, 2008 TA4, 2008 TA, 2008 SX7, 2008 ST, 2008 SQ, 2008 SO1, 2008 SH82, 2008 RZ24, 2008 RT, 2008 QT3, 2008 MZ, 2008 MH1, 2008 LW8
A88Bolzaneto Obs. in Italy, 1 in MPEC 2008-T121 -- 185851
703Catalina Sky Survey (CSS) in Arizona, 8 in MPECs 2008-T121 & 2008-T122 -- 2008 TB2, 2008 RE1, 2008 QD4, 2008 GV3, 2007 TA19, 2005 WK4, 185851, 11500
448Desert Moon Obs. in New Mexico, 6 in MPEC 2008-T121 -- 2008 TX3, 2008 TV25, 2008 TR2, 2008 SU1, 2008 SQ, 2008 PH3
114Engelhardt Obs. Zelenchukskaya Station in Karachay-Cherkessia, 1 in MPEC 2008-T121 -- 2008 TV25
704LINEAR in New Mexico, 3 in MPEC 2008-T121 -- 2005 WS55, 2001 UZ16, 20460
J87La Canada Obs. in Spain, 1 in MPEC 2008-T121 -- 2008 TM26
J34La Fecha Obs. in Spain, 1 in MPEC 2008-T121 -- 2008 NU
G96Mt. Lemmon Survey (MLS) in Arizona, 11 in MPEC 2008-T121 -- 2008 TY9, 2008 TY3, 2008 TX9, 2008 TE4, 2008 TC4, 2008 TC2, 2008 SO, 2008 SJ148, 2008 QC, 68950, 6050
J86Sierra Nevada Obs. in Spain, 1 in MPEC 2008-T122 -- 2008 QD4
691Spacewatch 0.9m telescope in Arizona, 3 in MPEC 2008-T121 -- 2008 TX3, 2006 SU19, 137044
A78Stia Obs. in Italy, 1 in MPEC 2008-T121 -- 2008 SQ
A55Vallemare di Borbona Obs. in Italy, 1 in MPEC 2008-T121 -- 2008 TM26
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 11 October '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 TS26NEODyS1517201312.66e-05-7.47-7.470NEODyS: "Based on 20 optical observations (of which 0 are rejected as outliers) from 2008/10/09.330 to 2008/10/09.439."
2008 TQ26NEODyS15172012-2089736.83e-09-6.47-7.180NEODyS: "Based on 13 optical observations (of which 0 are rejected as outliers) from 2008/10/09.385 to 2008/10/10.321."
2008 TP26NEODyS15172013-20901382.29e-08-6.21-6.770NEODyS: "Based on 13 optical observations (of which 0 are rejected as outliers) from 2008/10/09.352 to 2008/10/10.331."
2008 TV25JPL Sentry1516R E M O V E DJPL: Risk listing removed at 1031 UTC.
NEODyS1516R E M O V E D-
2008 TP10JPL Sentry1516R E M O V E DJPL: Risk listing removed at 1030 UTC.
NEODyS1516R E M O V E D-
2008 SH82NEODyS1517208116.15e-08-5.58-5.580NEODyS: "Based on 47 optical observations (of which 0 are rejected as outliers) from 2008/09/26.214 to 2008/10/10.055."
JPL Sentry1516208116.2e-08-5.54-5.540JPL: "Analysis based on 47 observations spanning 13.841 days (2008-Sep-26.21299 to 2008-Oct-10.05434)." Diameter approximately 0.210 km. from mean, weighted H=21.0.
2008 STJPL Sentry15162047-2101144.4e-05-5.76-5.900JPL: "Analysis based on 49 observations spanning 7.1120 days (2008-Sep-22.16113 to 2008-Sep-29.27316)." Diameter approximately 0.013 km. from mean, weighted H=27.1.

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 11 October '08

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

1517Noted that NEODyS has updated its 2008 SH82 risk assessment - see above
Grabbed MPEC 2008-T121 - Daily Orbit Update - see above
1516Noted that JPL Sentry has updated its 2008 SH82 risk assessment - see above
Noted that JPL Sentry has updated its 2008 ST risk assessment - see above
Noted that JPL Sentry has removed 2008 TP10 as an impact risk - see above
Noted that NEODyS has removed 2008 TP10 as an impact risk - see above
Noted that NEODyS has posted 2008 TP26 as an impact risk - see above
Noted that NEODyS has posted 2008 TQ26 as an impact risk - see above
Noted that NEODyS has posted 2008 TS26 as an impact risk - see above
Noted that JPL Sentry has removed 2008 TV25 as an impact risk - see above
Noted that NEODyS has removed 2008 TV25 as an impact risk - see above
Grabbed MPEC 2008-T122 - 2008 QD4 - see above