Contents  on 1 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 1 October '08

The MPC's NEO Confirmation Page has 14 listings: 2 new, 12 updated

When last checked at 2358 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had two new and twelve updated listings. Of these, eight were "one nighters." So far The Tracking News has counted a total of 25 objects listed on the NEOCP at some point today.

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 1 October '08

Minor Planet Electronic Circulars

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


MPEC 2008-T13 - "22:12 UT" - 2008 TB


MPEC 2008-T12 - "22:09 UT" - 2008 TA


MPEC 2008-T11 - "19:08 UT" - Comets C/2008 P2, 2008 P3, 2008 P4, 2008 P5, 2008 P6 (SOHO)


MPEC 2008-T10 - "18:58 UT" - Comets C/2008 O6, 2008 O7 (SOHO)


MPEC 2008-T09 - "18:20 UT" - 2008 SZ150


MPEC 2008-T08 - "18:17 UT" - 2008 SY150


MPEC 2008-T07 - "18:13 UT" - 2008 SX150


MPEC 2008-T06 - "18:11 UT" - 2008 SW150


MPEC 2008-T05 - "18:01 UT" - 2008 SV150


MPEC 2008-T04 - "17:56 UT" - 2008 SU150


MPEC 2008-T03 - "17:31 UT" - 2000 FL1


MPEC 2008-T02 - "17:02 UT" - 2003 XH


<< DOU on 1 Oct. '08 >>  MPEC 2008-T01 - "06:08 UT" - Daily Orbit Update

Observers  on 1 October '08

A total of 26 observing facilities appear in today's MPECs.

CodeObserver / observatory
H55Astronomical Research Obs. (ARO) in Illinois, 18 in MPECs 2008-T01, 2008-T03, 2008-T08 & 2008-T09 -- 2008 SZ150, 2008 SY150, 2008 SU1, 2008 SR7, 2008 SR1, 2008 SP, 2008 SO, 2008 SF8, 2008 RZ24, 2008 RX24, 2008 RV, 2008 RJ1, 2008 RG1, 2008 RE80, 2008 RE1, 2008 QT3, 2008 QC, 2000 FL1
703Catalina Sky Survey (CSS) in Arizona, 6 in MPECs 2008-T01 & 2008-T12 -- 2008 TA, 2008 SG148, 2008 SE, 185851, 162149, 12538
850Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2008-T03 -- 2000 FL1
448Desert Moon Obs. in New Mexico, 5 in MPEC 2008-T01 -- 2008 SQ7, 2008 SP7, 2008 RG98, 2008 RG1, 2008 RE1
F658program code 8 via Faulkes Telescope North in Hawaii, 1 in MPEC 2008-T01 -- 2008 EE5
J95Great Shefford Obs. in England, 2 in MPECs 2008-T12 & 2008-T13 -- 2008 TB, 2008 TA
701Junk Bond Obs. in Arizona, 1 in MPEC 2008-T03 -- 2000 FL1
046Klet Obs. in the Czech Republic, 4 in MPEC 2008-T01 -- 2008 SU1, 2008 RV, 2008 RG98, 2008 QS11
704LINEAR in New Mexico, 11 in MPECs 2008-T01, 2008-T03, 2008-T08 & 2008-T09 -- 2008 SZ150, 2008 SZ1, 2008 SY150, 2008 SP7, 2008 SO, 2008 RT, 2001 SW269, 2000 FL1, 66008, 39572, 9856
E17Leura Obs. in New South Wales, 1 in MPEC 2008-T01 -- 1865
130Lumezzane Obs. in Italy, 11 in MPEC 2008-T01 -- 2008 SR1, 2008 SE, 2008 PL3, 2008 JZ7, 2005 OU1, 2002 VV17, 2001 UZ16, 2001 SK9, 65733, 188452, 11500
H01Magdalena Ridge Obs. (MRO) in New Mexico, 3 in MPECs 2008-T01, 2008-T04 & 2008-T08 -- 2008 SY150, 2008 SV11, 2008 SU150
474Mt. John Obs. in New Zealand, 6 in MPECs 2008-T06, 2008-T07, 2008-T08, 2008-T09, 2008-T12 & 2008-T13 -- 2008 TB, 2008 TA, 2008 SZ150, 2008 SY150, 2008 SX150, 2008 SW150
G96Mt. Lemmon Survey (MLS) in Arizona, 7 in MPECs 2008-T01, 2008-T03, 2008-T04, 2008-T05, 2008-T08, 2008-T09 & 2008-T13 -- 2008 TB, 2008 SZ150, 2008 SY150, 2008 SV150, 2008 SV11, 2008 SU150, 2000 FL1
557Ondrejov Obs. in the Czech Republic, 1 in MPEC 2008-T01 -- 185851
6581Dave Balam via Plaskett 1.8m Telescope in British Columbia, 5 in MPECs 2008-T03, 2008-T08, 2008-T09, 2008-T12 & 2008-T13 -- 2008 TB, 2008 TA, 2008 SZ150, 2008 SY150, 2000 FL1
H06%E. Guido in Italy via RAS Obs. Mayhill in New Mexico, 2 in MPECs 2008-T01 & 2008-T03 -- 2008 QS11, 2000 FL1
854Sabino Canyon Obs. in Arizona, 2 in MPECs 2008-T03 & 2008-T09 -- 2008 SZ150, 2000 FL1
H36Sandlot Obs. in Kansas, 1 in MPEC 2008-T03 -- 2000 FL1
E12Siding Spring Survey (SSS) in New South Wales, 2 in MPECs 2008-T06 & 2008-T07 -- 2008 SX150, 2008 SW150
2492LASCO Coronagraph 2 (SOHO C2) aboard the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 4 in MPECs 2008-T10 & 2008-T11 -- C/2008 P5, C/2008 P3, C/2008 O7, C/2008 O6
2493LASCO Coronagraph 3 (SOHO C3) aboard the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 6 in MPECs 2008-T10 & 2008-T11 -- C/2008 P6, C/2008 P5, C/2008 P4, C/2008 P3, C/2008 P2, C/2008 O6
691Spacewatch 0.9m telescope in Arizona, 6 in MPECs 2008-T01 & 2008-T02 -- 2008 SW11, 2005 VY17, 2003 XH, 2001 CK42, 96315, 19356
291Spacewatch 1.8m telescope in Arizona, 7 in MPEC 2008-T01 -- 2008 SV11, 2008 ST7, 2008 SO, 2008 SE85, 2008 RJ1, 2008 RG98, 2008 RG1
A78Stia Obs. in Italy, 3 in MPEC 2008-T01 -- 2008 SR1, 2008 SE, 2008 PL3
6735Jim Young via Table Mtn. Obs. in southern California, 3 in MPECs 2008-T03, 2008-T08 & 2008-T09 -- 2008 SZ150, 2008 SY150, 2000 FL1
H47Vicksburg Obs. in Mississippi, 1 in MPEC 2008-T01 -- 4179
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 1 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 TBJPL Sentry2358210012.8e-08-7.93-7.930JPL: "Analysis based on 30 observations spanning .57397 days (2008-Oct-01.22664 to 2008-Oct-01.800612)." Diameter approximately 0.025 km. from mean, weighted H=25.6.
2008 SJ148NEODyS1628208911.87e-10-9.04-9.040NEODyS: "Based on 12 optical observations (of which 0 are rejected as outliers) from 2008/09/29.416 to 2008/09/29.515."
2008 SE85JPL Sentry14382018-2106892.8e-07-3.54-4.140JPL: "Analysis based on 23 observations spanning 1.9985 days (2008-Sep-28.44782 to 2008-Sep-30.44632)." Diameter approximately 0.409 km. from mean, weighted H=19.6.
NEODyS14382018-2090942.46e-07-3.51-4.090NEODyS: "Based on 23 optical observations (of which 0 are rejected as outliers) from 2008/09/28.449 to 2008/09/30.447."
2008 SV11JPL Sentry16282009-2085111.3e-07-3.02-3.350JPL: "Analysis based on 45 observations spanning 5.1147 days (2008-Sep-25.26245 to 2008-Sep-30.37718)." Diameter approximately 0.757 km. from mean, weighted H=18.3.
NEODyS14382009-2089138.63e-08-3.34-3.690NEODyS: "Based on 45 optical observations (of which 0 are rejected as outliers) from 2008/09/25.263 to 2008/09/30.378."
2008 ST7JPL Sentry14382062-2108493.3e-05-4.30-5.090JPL: "Analysis based on 51 observations spanning 6.1303 days (2008-Sep-24.29993 to 2008-Sep-30.43024)." Diameter approximately 0.053 km. from mean, weighted H=24.0.
NEODyS14382062-208994.47e-06-5.06-5.390NEODyS: "Based on 54 optical observations (of which 6 are rejected as outliers) from 2008/09/24.301 to 2008/09/30.431."

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 October '08

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

2358Noted that JPL Sentry has posted 2008 TB as an impact risk - see above
2259Grabbed MPEC 2008-T12 - 2008 TA - see above
Grabbed MPEC 2008-T13 - 2008 TB - see above
1935Grabbed MPEC 2008-T10 - Comets C/2008 O6, 2008 O7 (SOHO) - see above
Grabbed MPEC 2008-T11 - Comets C/2008 P2, 2008 P3, 2008 P4, 2008 P5, 2008 P6 (SOHO) - see above
1835Grabbed MPEC 2008-T05 - 2008 SV150 - see above
Grabbed MPEC 2008-T06 - 2008 SW150 - see above
Grabbed MPEC 2008-T07 - 2008 SX150 - see above
Grabbed MPEC 2008-T08 - 2008 SY150 - see above
Grabbed MPEC 2008-T09 - 2008 SZ150 - see above
1802Grabbed MPEC 2008-T03 - 2000 FL1 - see above
Grabbed MPEC 2008-T04 - 2008 SU150 - see above
1703Grabbed MPEC 2008-T02 - 2003 XH - see above
1628Noted that NEODyS has posted 2008 SJ148 as an impact risk - see above
Noted that JPL Sentry has updated its 2008 SV11 risk assessment - see above
1438Noted that JPL Sentry has updated its 2008 SE85 risk assessment - see above
Noted that NEODyS has updated its 2008 SE85 risk assessment - see above
Noted that JPL Sentry has updated its 2008 ST7 risk assessment - see above
Noted that NEODyS has updated its 2008 ST7 risk assessment - see above
Noted that NEODyS has updated its 2008 SV11 risk assessment - see above
Grabbed MPEC 2008-T01 - Daily Orbit Update - see above