Contents  on 10 November '09

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 10 November '09

The MPC's NEO Confirmation Page has 9 listings: 3 new, 6 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had three new and six updated listings. All of these were "one nighters." So far The Tracking News has counted a total of eighteen listings on the NEOCP at some point today.

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

New MPECs  on 10 November '09

Minor Planet Electronic Circulars

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


MPEC 2009-V42 - "22:29 UT" - 2009 VT1


MPEC 2009-V41 - "19:02 UT" - 2002 UQ12 = 2009 UH14


MPEC 2009-V40 - "13:13 UT" - 2009 VN1


<< DOU on 10 Nov. '09 >>  MPEC 2009-V39 - "07:09 UT" - Daily Orbit Update


MPEC 2009-V38 - "05:43 UT" - 2009 VC1


MPEC 2009-V37 - "05:24 UT" - 2009 VB1


MPEC 2009-V36 - "05:03 UT" - 2009 VA1

Observers  on 10 November '09

Fourteen observing facilities appear in today's MPECs.

CodeObserver / observatory
703Catalina Sky Survey (CSS) in Arizona, 26 in MPEC 2009-V39 -- 2009 VP, 2009 UY87, 2009 UW18, 2009 UQ5, 2009 ST103, 2009 SM103, 2009 QD34, 2009 MC9, 2009 KC3, 2005 RQ6, 2002 CF26, 1999 YC, 30997, 217683, 216689, 17274, 16834, 162273, 154244, 152931, 143678, 8201, 5587, 3988, 1865, 433
448Desert Moon Obs. in New Mexico, 1 in MPEC 2009-V39 -- 2009 UK
G92Jarnac Obs. in Arizona, 1 in MPEC 2009-V39 -- 4015
704LINEAR in New Mexico, 11 in MPECs 2009-V36 & 2009-V39 -- 2009 VQ, 2009 VP, 2009 VA1, 2009 ST19, 2009 NA, 2001 UW16, 1998 VF32, 96189, 66272, 22771, 3200
H01Magdalena Ridge Obs. (MRO) in New Mexico, 2 in MPECs 2009-V37 & 2009-V38 -- 2009 VC1, 2009 VB1
G96Mt. Lemmon Survey (MLS) in Arizona, 8 in MPECs 2009-V36, 2009-V37, 2009-V38, 2009-V39, 2009-V40 & 2009-V42 -- 2009 VT1, 2009 VN1, 2009 VC1, 2009 VB1, 2009 VA1, 2006 XA, 2001 SG286, 89136
B49Paus Obs. in Spain, 1 in MPEC 2009-V39 -- 2009 ST19
J53Posadas Obs. in Spain, 2 in MPEC 2009-V39 -- 54660, 217796
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 1 in MPEC 2009-V39 -- 2009 UK20
B74Santa Maria de Montmagastrell Obs. in Spain, 1 in MPEC 2009-V39 -- 2009 ST19
E12Siding Spring Survey (SSS) in New South Wales, 8 in MPECs 2009-V36 & 2009-V39 -- 2009 VA1, 2009 UZ17, 2009 UY17, 2009 UX19, 2009 UN3, 2009 TK, 2009 JL1, 2009 HD21
291Spacewatch 1.8m telescope in Arizona, 10 in MPECs 2009-V36 & 2009-V39 -- 2009 VA1, 2009 UZ87, 2009 UL20, 2009 UG, 2009 UD2, 2009 TB3, 2009 SU19, 2009 SB15, 2006 HZ51, 2005 UM5
926Tenagra II Obs. in Arizona, 3 in MPECs 2009-V37, 2009-V40 & 2009-V42 -- 2009 VT1, 2009 VN1, 2009 VB1
D25Tzec Maun Obs. Pingelly in Western Australia, 1 in MPEC 2009-V39 -- 87684
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 10 November '09

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.
The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Beginning Jan. 22nd, both are also posting impact solutions beyond 100 years for a few objects.
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
2009 VT1JPL Sentry2358210912.6e-09-11.13-11.10JPL: "Analysis based on 21 observations spanning .19115 days (2009-Nov-10.31746 to 2009-Nov-10.50861)." Diameter approximately 0.004 km. from mean, weighted H=29.4.

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 10 November '09

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

2358Noted that JPL Sentry has posted 2009 VT1 as an impact risk - see above
2310Grabbed MPEC 2009-V42 - 2009 VT1 - see above
2005Grabbed MPEC 2009-V41 - 2002 UQ12 = 2009 UH14 - see above
1445Grabbed MPEC 2009-V39 - Daily Orbit Update - see above
Grabbed MPEC 2009-V40 - 2009 VN1 - see above
0554Grabbed MPEC 2009-V36 - 2009 VA1 - see above
Grabbed MPEC 2009-V37 - 2009 VB1 - see above
Grabbed MPEC 2009-V38 - 2009 VC1 - see above