Contents  on 1 August '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 1 August '08

The MPC's NEO Confirmation Page has 4 listings: 4 updated

When last checked at 1448 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had four updated listings. Of these, two were "one nighters." The Tracking News counted a total of five objects listed on the NEOCP at some point on this day.

New MPECs  on 1 August '08

Minor Planet Electronic Circulars

There were five MPECs issued this day from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2008-P05 - "20:51 UT" - Comet C/2008 O3 (Boattini)


MPEC 2008-P04 - "15:17 UT" - Comet C/2008 O2 (McNaught)


MPEC 2008-P03 - "13:56 UT" - 2008 ON10


<< DOU on 1 Aug. '08 >>  MPEC 2008-P02 - "06:09 UT" - Daily Orbit Update


MPEC 2008-P01 - "01:32 UT" - Comet C/2008 O1 (SOHO)

Observers  on 1 August '08

A total of 27 observing facilities appeared in this day's MPECs.

CodeObserver / observatory
B37Ametlla del Valles Obs. in Spain, 2 in MPEC 2008-P02 -- 90403, 8567
H55Astronomical Research Obs. (ARO) in Illinois, 3 in MPECs 2008-P02, 2008-P04 & 2008-P05 -- 2008 OP8, C/2008 O3, C/2008 O2
I77CEAMIG-REA in Brazil, 2 in MPECs 2008-P03 & 2008-P04 -- 2008 ON10, C/2008 O2
B20Carmelita Obs. in Spain, 1 in MPEC 2008-P04 -- C/2008 O2
703Catalina Sky Survey (CSS) in Arizona, 3 in MPEC 2008-P02 -- 90403, 65690, 162980
J27El Guijo Obs. in Spain, 1 in MPEC 2008-P02 -- 2008 OX1
J95Great Shefford Obs. in England, 2 in MPECs 2008-P03 & 2008-P04 -- 2008 ON10, C/2008 O2
E16Grove Creek Obs. in New South Wales, 1 in MPEC 2008-P04 -- C/2008 O2
F84Hibiscus Obs. in Tahiti, 4 in MPECs 2008-P02, 2008-P03 & 2008-P04 -- 2008 ON10, C/2008 O2, 2003 FQ6, 163000
246KLENOT in the Czech Republic, 1 in MPEC 2008-P04 -- C/2008 O2
682Kanab Obs. in Utah, 2 in MPEC 2008-P02 -- 2008 OS7, 2008 OQ8
704LINEAR in New Mexico, 6 in MPECs 2008-P02 & 2008-P03 -- 2008 OS9, 2008 ON10, 2008 MR1, 90075, 4183, 1916
A06Mataro Obs. in Spain, 1 in MPEC 2008-P04 -- C/2008 O2
B67Mirasteilas Obs. in Switzerland, 1 in MPEC 2008-P02 -- 2008 MU1
900Moriyama Obs. in Japan, 1 in MPEC 2008-P04 -- C/2008 O2
G96Mt. Lemmon Survey (MLS) in Arizona, 5 in MPECs 2008-P02, 2008-P04 & 2008-P05 -- 2008 OQ8, 2008 OC6, C/2008 O3, C/2008 O2, 96744
A13Naef Obs. in Switzerland, 2 in MPEC 2008-P02 -- 2005 TZ51, 162186
J47Nazaret Obs. in Spain, 1 in MPEC 2008-P04 -- C/2008 O2
H06RAS Obs. Mayhill in New Mexico, 1 in MPEC 2008-P04 -- C/2008 O2
104San Marcello Pistoiese Obs. in Italy, 1 in MPEC 2008-P04 -- C/2008 O2
B61Sant Cugat del Valles Obs. in Spain, 1 in MPEC 2008-P02 -- 35107
B38Santa Mama Obs. in Italy, 4 in MPEC 2008-P02 -- 2008 OX1, 2008 MU1, 65690, 35107
204Schiaparelli Obs. in Italy, 1 in MPEC 2008-P04 -- C/2008 O2
E12Siding Spring Survey (SSS) in New South Wales, 3 in MPECs 2008-P02 & 2008-P04 -- 2008 OY2, 2008 OT7, C/2008 O2
B40Skylive Obs. in Italy, 1 in MPEC 2008-P04 -- C/2008 O2
2493LASCO Coronagraph 3 aboard the Solar & Heliospheric Obs. in Earth-Sun L1 HALO orbit, 1 in MPEC 2008-P01 -- C/2008 O1
A78Stia Obs. in Italy, 1 in MPEC 2008-P02 -- 2008 OX1
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 1 August '08

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 1448 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 OB9NEODyS13262013-2088523.69e-08-3.01-3.700NEODyS: "Based on 12 optical observations (of which 0 are rejected as outliers) from 2008/07/29.341 to 2008/07/31.249."
2008 OQ8JPL Sentry1326205813.0e-10-8.24-8.240JPL: "Analysis based on 18 observations spanning .98727 days (2008-Jul-30.40425 to 2008-Jul-31.39152)." Diameter approximately 0.120 km. from mean, weighted H=22.2.
NEODyS13262058-206421.91e-10-8.70-8.810NEODyS: "Based on 18 optical observations (of which 0 are rejected as outliers) from 2008/07/30.405 to 2008/07/31.392."
2008 OP8JPL Sentry1326203911.8e-10-6.44-6.440JPL: "Analysis based on 23 observations spanning .95670 days (2008-Jul-30.41557 to 2008-Jul-31.37227)." Diameter approximately 0.500 km. from mean, weighted H=19.1.
2008 OO8NEODyS13262030-208481.34e-06-6.15-6.390NEODyS: "Based on 15 optical observations (of which 0 are rejected as outliers) from 2008/07/30.379 to 2008/07/31.298."
2008 OT7NEODyS1326209019.42e-10-10.38-10.380NEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2008/07/30.621 to 2008/07/31.560."
JPL Sentry1326R E M O V E DJPL: Risk listing removed at 0854 UTC.
2008 OS7JPL Sentry1326210824.1e-10-7.24-7.510JPL: "Analysis based on 28 observations spanning 1.0831 days (2008-Jul-30.245 to 2008-Jul-31.32805)." Diameter approximately 0.290 km. from mean, weighted H=20.3.
NEODyS1326R E M O V E D-
2008 OC6JPL Sentry13262010-21083339.6e-07-1.91-2.430JPL: "Analysis based on 15 observations spanning 2.0078 days (2008-Jul-29.46081 to 2008-Jul-31.46859)." Diameter approximately 0.813 km. from mean, weighted H=18.1.
NEODyS13262010-2087585.95e-07-2.04-2.450NEODyS: "Based on 15 optical observations (of which 0 are rejected as outliers) from 2008/07/29.462 to 2008/07/31.469."
2008 OY2JPL Sentry1326R E M O V E DJPL: Risk listing removed at 0849 UTC.

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 1 August '08

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

0032 8/2Grabbed MPEC 2008-P04 - Comet C/2008 O2 (McNaught) - see above
Grabbed MPEC 2008-P05 - Comet C/2008 O3 (Boattini) - see above
1448Grabbed MPEC 2008-P03 - 2008 ON10 - see above
1326Noted that NEODyS has posted 2008 OB9 as an impact risk - see above
Noted that JPL Sentry has posted 2008 OC6 as an impact risk - see above
Noted that NEODyS has updated its 2008 OC6 risk assessment - see above
Noted that NEODyS has posted 2008 OO8 as an impact risk - see above
Noted that JPL Sentry has updated its 2008 OP8 risk assessment - see above
Noted that JPL Sentry has posted 2008 OQ8 as an impact risk - see above
Noted that NEODyS has posted 2008 OQ8 as an impact risk - see above
Noted that JPL Sentry has updated its 2008 OS7 risk assessment - see above
Noted that NEODyS has removed 2008 OS7 as an impact risk - see above
Noted that JPL Sentry has removed 2008 OT7 as an impact risk - see above
Noted that NEODyS has posted 2008 OT7 as an impact risk - see above
Noted that JPL Sentry has removed 2008 OY2 as an impact risk - see above
Grabbed MPEC 2008-P02 - Daily Orbit Update - see above
0403Grabbed MPEC 2008-P01 - Comet C/2008 O1 (SOHO) - see above