Contents  on 30 March '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 30 March '09

The MPC's NEO Confirmation Page has 3 listings: 2 new, 1 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two new and one updated listings. All of these were "one nighters." So far The Tracking News has counted a total of eleven 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 30 March '09

Minor Planet Electronic Circulars

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


MPEC 2009-F103 - "15:34 UT" - 2009 FT32


MPEC 2009-F102 - "15:30 UT" - 2009 FS32


MPEC 2009-F101 - "15:26 UT" - 2009 FR32


MPEC 2009-F100 - "15:16 UT" - 2009 FQ32


MPEC 2009-F99 - "15:12 UT" - 2009 FP32


MPEC 2009-F98 - "15:06 UT" - 2009 FO32


MPEC 2009-F97 - "15:01 UT" - 2009 FN32


<< DOU on 30 Mar. '09 >>  MPEC 2009-F96 - "06:11 UT" - Daily Orbit Update

Observers  on 30 March '09

A total of 24 observing facilities appear in today's MPECs.

CodeObserver / observatory
H55Astronomical Research Obs. (ARO) in Illinois, 4 in MPECs 2009-F99, 2009-F101, 2009-F102 & 2009-F103 -- 2009 FT32, 2009 FS32, 2009 FR32, 2009 FP32
A74Bergen-Enkheim Obs. in Germany, 1 in MPEC 2009-F96 -- 14402
703Catalina Sky Survey (CSS) in Arizona, 13 in MPEC 2009-F96 -- 2009 FU4, 2009 DQ4, 99935, 85953, 38086, 22771, 162900, 15745, 155341, 155336, 3103, 1863, 1620
448Desert Moon Obs. in New Mexico, 4 in MPEC 2009-F96 -- 2009 FY4, 2009 ED1, 2009 EC, 162882
I21El Condor Obs. in Argentina, 2 in MPEC 2009-F96 -- 2009 FO28, 2008 WN2
651Grasslands Obs. in Arizona, 1 in MPEC 2009-F98 -- 2009 FO32
J95Great Shefford Obs. in England, 7 in MPECs 2009-F96, 2009-F97, 2009-F98, 2009-F99, 2009-F101, 2009-F102 & 2009-F103 -- 2009 FY29, 2009 FT32, 2009 FS32, 2009 FR32, 2009 FP32, 2009 FO32, 2009 FN32
B12Koschny Obs. in The Netherlands, 1 in MPEC 2009-F96 -- 5011
704LINEAR in New Mexico, 24 in MPECs 2009-F96 & 2009-F100 -- 2009 FQ32, 2009 FO28, 2009 DL1, 2009 CZ2, 2006 GQ2, 2006 BC10, 2005 SG19, 2002 EZ2, 85953, 35396, 22771, 209924, 207970, 200840, 162882, 155334, 143947, 138911, 138127, 8567, 5332, 4257, 4179, 3122
H01Magdalena Ridge Obs. (MRO) in New Mexico, 4 in MPECs 2009-F97, 2009-F98, 2009-F99 & 2009-F101 -- 2009 FR32, 2009 FP32, 2009 FO32, 2009 FN32
711McDonald Obs. in Texas, 8 in MPEC 2009-F96 -- 2009 FY29, 2009 FJ30, 2009 ED1, 2009 CA2, 2005 CW25, 2004 JN13, 2004 HO, 2002 LV
474Mt. John Obs. in New Zealand, 1 in MPEC 2009-F98 -- 2009 FO32
G96Mt. Lemmon Survey (MLS) in Arizona, 16 in MPECs 2009-F96, 2009-F97, 2009-F99, 2009-F101, 2009-F102 & 2009-F103 -- 2009 FT32, 2009 FS32, 2009 FR32, 2009 FP32, 2009 FN32, 2008 TQ2, 2004 RM251, 2004 HO, 99935, 86666, 68063, 31662, 22771, 177614, 159467, 154993
J93Mt. Tuffley Obs. in England, 1 in MPEC 2009-F96 -- 2008 SV11
A24New Millennium Obs. in Italy, 4 in MPEC 2009-F96 -- 2008 WL60, 2007 BT2, 2002 EL6, 14402
J69North Obs. in England, 1 in MPEC 2009-F96 -- 2008 SV11
D90.Cristovao Jacques in Brazil via RAS Obs. Moorook in South Australia, 1 in MPEC 2009-F98 -- 2009 FO32
J41Raheny Obs. in Ireland, 3 in MPEC 2009-F96 -- 68350, 143651, 3102
854Sabino Canyon Obs. in Arizona, 2 in MPECs 2009-F97 & 2009-F99 -- 2009 FP32, 2009 FN32
204Schiaparelli Obs. in Italy, 3 in MPEC 2009-F96 -- 2009 FW4, 2009 FR, 2009 FO28
E12Siding Spring Survey (SSS) in New South Wales, 5 in MPECs 2009-F96, 2009-F98 & 2009-F100 -- 2009 FQ32, 2009 FO32, 2005 EF, 1999 EF5, 18172
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2009-F96 -- 39557
291Spacewatch 1.8m telescope in Arizona, 1 in MPEC 2009-F96 -- 2009 FZ10
H53Thompsonville Obs. in Illinois, 1 in MPEC 2009-F96 -- 2009 FA
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 30 March '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 FQ32JPL Sentry17092070-210444.0e-08-8.65-8.900JPL: "Analysis based on 8 observations spanning 1.2047 days (2009-Mar-29.24106 to 2009-Mar-30.44576)." Diameter approximately 0.015 km. from mean, weighted H=26.8.
2009 FP32JPL Sentry17092073-2104147.5e-06-6.56-7.030JPL: "Analysis based on 20 observations spanning 1.0757 days (2009-Mar-29.24036 to 2009-Mar-30.31608)." Diameter approximately 0.010 km. from mean, weighted H=27.8.
2009 FJ30JPL Sentry13332021-2106639.7e-07-4.94-5.590JPL: "Analysis based on 16 observations spanning 1.9366 days (2009-Mar-27.40474 to 2009-Mar-29.3413)." Diameter approximately 0.106 km. from mean, weighted H=22.5.
NEODyS13332021-2089165.0e-07-5.25-5.650NEODyS: "Based on 16 optical observations (of which 0 are rejected as outliers) from 2009/03/27.406 to 2009/03/29.342."

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 30 March '09

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

1709Noted that JPL Sentry has posted 2009 FP32 as an impact risk - see above
Noted that JPL Sentry has posted 2009 FQ32 as an impact risk - see above
Grabbed MPEC 2009-F99 - 2009 FP32 - see above
Grabbed MPEC 2009-F100 - 2009 FQ32 - see above
Grabbed MPEC 2009-F101 - 2009 FR32 - see above
Grabbed MPEC 2009-F102 - 2009 FS32 - see above
Grabbed MPEC 2009-F103 - 2009 FT32 - see above
1510Grabbed MPEC 2009-F97 - 2009 FN32 - see above
Grabbed MPEC 2009-F98 - 2009 FO32 - see above
1333Noted that JPL Sentry has updated its 2009 FJ30 risk assessment - see above
Noted that NEODyS has updated its 2009 FJ30 risk assessment - see above
Grabbed MPEC 2009-F96 - Daily Orbit Update - see above