Contents  on 25 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 25 March '09

The MPC's NEO Confirmation Page has 10 listings: 6 new, 4 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had six new and four updated listings. Of these, seven 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 by Birtwhistle et al. at Suno Observatory.

New MPECs  on 25 March '09

Minor Planet Electronic Circulars

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


MPEC 2009-F76 - "19:09 UT" - Observations of Comets


MPEC 2009-F75 - "15:46 UT" - 2009 FW25


<< DOU on 25 Mar. '09 >>  MPEC 2009-F74 - "06:11 UT" - Daily Orbit Update

Observers  on 25 March '09

A total of 77 observing facilities appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 7 in MPEC 2009-F76 -- C/2008 N1, C/2008 FK75, C/2007 N3, C/2006 U6, 210P, 204P, 22P
J97Alginet Obs. in Spain, 2 in MPEC 2009-F76 -- 116P, 65P
H55Astronomical Research Obs. (ARO) in Illinois, 3 in MPEC 2009-F74 -- 2009 FY4, 2009 FS, 2009 FR
J51Atlante Obs. in the Canary Islands, 4 in MPECs 2009-F74 & 2009-F76 -- 2009 FA, C/2007 N3, C/2006 OF2, 116P
A81Balzaretto Obs. in Italy, 2 in MPECs 2009-F74 & 2009-F76 -- 2009 FA, 116P
A74Bergen-Enkheim Obs. in Germany, 1 in MPEC 2009-F74 -- 2009 FG1
B88Bigmuskie Obs. in Italy, 2 in MPEC 2009-F74 -- 2008 YE29, 164400
127Bornheim Obs. in Germany, 1 in MPEC 2009-F76 -- C/2007 N3
235CAST Obs. in Italy, 19 in MPEC 2009-F76 -- C/2008 T2, C/2008 A1, C/2007 N3, C/2006 U6, C/2006 Q1, C/2006 OF2, C/2005 L3, 210P, 209P, 144P, 143P, 116P, 77P, 74P, 67P, 65P, 59P, 29P, 19P
B81Caimari Obs. on Mallorca, 2 in MPEC 2009-F76 -- C/2006 OF2, 65P
J12Caraquiz Obs., 3 in MPEC 2009-F76 -- 116P, 67P, 29P
B20Carmelita Obs. in Spain, 9 in MPEC 2009-F76 -- C/2008 T2, C/2007 N3, C/2006 OF2, C/2005 L3, 144P, 116P, 77P, 74P, 29P
703Catalina Sky Survey (CSS) in Arizona, 14 in MPECs 2009-F74 & 2009-F76 -- 2009 FV23, 2009 FT, 2009 DV42, C/2008 FK75, 2007 BT2, 2006 WZ2, C/2002 VQ94, 25916, 209924, 198856, 6050, 1627, 204P, 88P
A77Chante-Perdrix Obs. in France, 7 in MPEC 2009-F76 -- C/2008 Q1, C/2007 N3, C/2006 W3, C/2006 Q1, 77P, 29P, 22P
850Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2009-F76 -- 215P
B50Corner Obs. in Germany, 3 in MPEC 2009-F76 -- C/2008 T2, C/2006 OF2, 116P
I21El Condor Obs. in Argentina, 3 in MPECs 2009-F74 & 2009-F76 -- 2008 WN2, C/2007 Q3, 3552
J27El Guijo Obs. in Spain, 2 in MPEC 2009-F76 -- C/2007 N3, C/2006 OF2
J19El Maestrat Obs. in Spain, 1 in MPEC 2009-F76 -- C/2007 N3
E85Farm Cove Obs. in New Zealand, 1 in MPEC 2009-F76 -- C/2006 U6
F659Marco Micheli in Hawaii via Faulkes Telescope North in Hawaii, 1 in MPEC 2009-F75 -- 2009 FW25
B83Gieres Obs. in France, 1 in MPEC 2009-F76 -- C/2007 N3
143Gnosca Obs. in Switzerland, 2 in MPECs 2009-F74 & 2009-F76 -- 2009 FH, C/2006 OF2
J95Great Shefford Obs. in England, 1 in MPEC 2009-F74 -- 2009 FD
E16Grove Creek Obs. in New South Wales, 2 in MPEC 2009-F76 -- C/2007 M2, 22P
458Guadarrama Obs. in Spain, 2 in MPEC 2009-F76 -- C/2007 N3, 29P
442Gualba Obs. in Spain, 3 in MPEC 2009-F76 -- C/2007 N3, C/2006 OF2, 29P
D80Gunma Obs. in Japan, 19 in MPEC 2009-F76 -- C/2008 T2, C/2008 Q1, C/2008 N1, C/2008 FK75, C/2008 A1, C/2006 W3, C/2006 U6, C/2006 Q1, C/2006 OF2, C/2005 L3, 210P, 209P, 144P, 116P, 77P, 65P, 33P, 22P, 19P
379Hamamatsu-Yuto Obs. in Japan, 6 in MPECs 2009-F74 & 2009-F76 -- 2009 FD, 2009 FA, 2008 WL60, C/2007 N3, C/2006 OF2, 144P
A18Herne Obs. in Germany, 6 in MPEC 2009-F76 -- C/2008 T2, C/2007 N3, C/2006 OF2, 144P, 67P, 29P
B15Inastars Obs. in Germany, 2 in MPECs 2009-F74 & 2009-F76 -- 7480, 116P
857Iowa Robotic Obs. in Arizona, 2 in MPEC 2009-F76 -- 144P, 116P
987Isle of Man Obs. on the Isle of Man, 3 in MPEC 2009-F76 -- C/2007 N3, 209P, 29P
415Kambah Obs. in the Australian Capital Territory, 1 in MPEC 2009-F76 -- C/2007 M2
370Kochi Obs. in Japan, 3 in MPEC 2009-F76 -- C/2008 T2, C/2006 W3, C/2006 OF2
704LINEAR in New Mexico, 17 in MPECs 2009-F74 & 2009-F76 -- 2009 FW4, 2009 FE, 2009 DE47, P/2008 Y2, 2008 SQ7, C/2008 FK75, 2002 EZ2, 39557, 35396, 164400, 155334, 5693, 5620, 144P, 143P, 88P, 10P
J75La Sagra Obs. in Spain, 7 in MPECs 2009-F74 & 2009-F76 -- P/2005 SB216, 99935, 207970, 206910, 155336, 88P, 10P
J38La Vara Obs. in Spain, 14 in MPEC 2009-F76 -- C/2008 T2, C/2008 Q1, C/2007 N3, C/2006 Q1, C/2006 OF2, C/2005 L3, 144P, 116P, 88P, 77P, 74P, 67P, 65P, 29P
844Los Molinos Obs. in Uruguay, 2 in MPEC 2009-F76 -- 116P, 77P
130Lumezzane Obs. in Italy, 7 in MPECs 2009-F74 & 2009-F76 -- 2009 FA, 2009 CQ1, 2008 YE29, 2008 EV5, C/2006 U6, 208565, 10302
560Madonna di Dossobuono Obs. in Italy, 4 in MPEC 2009-F76 -- 144P, 116P, 74P, 29P
B82Maidbronn Obs. in Germany, 10 in MPEC 2009-F76 -- C/2008 T2, C/2007 N3, 204P, 144P, 116P, 77P, 74P, 59P, 29P, 19P
J40Malaga Obs. in Spain, 6 in MPEC 2009-F76 -- C/2006 Q1, C/2005 L3, 116P, 67P, 65P, 29P
A02Masia Cal Maciarol Modul 8 (MCM8) in Spain, 5 in MPEC 2009-F76 -- C/2007 N3, 144P, 74P, 67P, 29P
B73Mauren Valley Obs. in Germany, 4 in MPEC 2009-F76 -- C/2007 N3, 144P, 116P, 29P
213Montcabre Obs. in Spain, 4 in MPEC 2009-F76 -- C/2007 N3, 67P, 65P, 29P
945Monte Deva Obs. in Spain, 9 in MPEC 2009-F76 -- C/2008 T2, C/2007 N3, C/2006 Q1, C/2006 OF2, C/2005 L3, 144P, 116P, 67P, 65P
900Moriyama Obs. in Japan, 14 in MPEC 2009-F76 -- C/2008 Q1, C/2007 S2, C/2007 Q3, C/2007 N3, C/2006 Q1, C/2005 L3, 211P, 210P, 209P, 144P, 143P, 88P, 77P, 19P
G96Mt. Lemmon Survey (MLS) in Arizona, 8 in MPECs 2009-F74 & 2009-F75 -- 2009 FW25, 2009 FJ1, 2008 TV25, 2008 TE157, 2005 SA71, 162011, 138883, 7088
D81Nagano Obs. in Japan, 1 in MPEC 2009-F76 -- C/2006 W3
J47Nazaret Obs. in Spain, 9 in MPEC 2009-F76 -- C/2007 N3, 211P, 144P, 116P, 67P, 65P, 29P, 19P, 17P
A24New Millennium Obs. in Italy, 10 in MPEC 2009-F74 -- 2009 CR2, 2006 BC10, 2002 VY94, 89355, 36284, 12711, 5332, 5011, 4257, 1863
423North Ryde Obs. in New South Wales, 1 in MPEC 2009-F76 -- C/2007 M2
D92Osaki Obs. in Japan, 1 in MPEC 2009-F76 -- C/2008 T2
B49Paus Obs. in Spain, 3 in MPEC 2009-F76 -- 116P, 65P, 19P
A53Peschiera del Garda Obs. in Italy, 3 in MPEC 2009-F74 -- 2009 FD, 2009 FA, 162900
J53Posadas Obs. in Spain, 9 in MPEC 2009-F76 -- C/2008 T2, C/2007 N3, C/2006 U6, C/2006 OF2, 144P, 116P, 77P, 74P, 29P
D29Purple Mtn. Obs. XuYi Station (XuYi Sta.) in China, 3 in MPEC 2009-F76 -- C/2007 N3, C/2007 D1, 88P
473Remanzacco Obs. in Italy, 1 in MPEC 2009-F76 -- 29P
939Rodeno Obs. in Spain, 11 in MPEC 2009-F76 -- C/2008 T2, C/2007 N3, C/2006 Q1, C/2006 OF2, 144P, 116P, 77P, 74P, 67P, 65P, 29P
H36Sandlot Obs. in Kansas, 2 in MPECs 2009-F75 & 2009-F76 -- 2009 FW25, C/2002 VQ94
B70Sant Celoni Obs. in Spain, 3 in MPEC 2009-F76 -- C/2007 D1, 116P, 65P
B74Santa Maria de Montmagastrell Obs. in Spain, 9 in MPEC 2009-F76 -- C/2008 Q1, C/2007 Q3, C/2006 Q1, C/2005 L3, 74P, 67P, 65P, 59P, 19P
204Schiaparelli Obs. in Italy, 15 in MPEC 2009-F76 -- C/2008 T2, C/2007 S2, C/2006 OF2, P/2005 SB216, 204P, 144P, 143P, 136P, 88P, 77P, 65P, 59P, 33P, 29P, 10P
E12Siding Spring Survey (SSS) in New South Wales, 2 in MPECs 2009-F74 & 2009-F76 -- C/2007 M2, 144332
510Siegen Obs. in Germany, 6 in MPEC 2009-F76 -- C/2006 OF2, 116P, 74P, 67P, 65P, 29P
B40Skylive Obs. in Italy, 5 in MPECs 2009-F74 & 2009-F76 -- 2009 FD, C/2007 N3, C/2006 Q1, 144P, 65P
691Spacewatch 0.9m telescope in Arizona, 5 in MPECs 2009-F74 & 2009-F76 -- 2007 MR, 2007 BF72, 89958, 155334, 88P
291Spacewatch 1.8m telescope in Arizona, 14 in MPECs 2009-F74 & 2009-F76 -- 2009 FV4, 2009 FU4, 2009 FS4, 2009 FP, 2009 FG, 2009 ES, 2009 EF3, 2009 DZ42, 2009 DA45, 2006 UC63, P/2005 SB216, 215P, 139P, 136P
A97Stammersdorf Obs. in Austria, 1 in MPEC 2009-F76 -- C/2008 T2
J35Tucci Obs. in Spain, 2 in MPEC 2009-F76 -- C/2007 N3, C/2006 OF2
H10Tzec Maun Obs. Mayhill in New Mexico, 4 in MPEC 2009-F76 -- C/2008 FK75, C/2005 L3, C/2002 VQ94, 33P
A92Urseanu Obs. in Romania, 1 in MPEC 2009-F74 -- 14402
H47Vicksburg Obs. in Mississippi, 9 in MPEC 2009-F76 -- C/2007 N3, C/2006 OF2, 144P, 116P, 77P, 74P, 65P, 29P, 19P
B42Vitebsk Obs. in Belarus, 7 in MPEC 2009-F76 -- P/2008 Y2, C/2008 Q1, C/2008 A1, C/2005 L3, 116P, 77P, 10P
G56Walnut Creek Obs. in northern California, 3 in MPEC 2009-F74 -- 2009 FA, 85953, 3122
367Yatsuka Obs. in Japan, 5 in MPEC 2009-F76 -- C/2007 Q3, 116P, 77P, 74P, 67P
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 25 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 FG1NEODyS1400R E M O V E D-
JPL Sentry1400R E M O V E DJPL: Risk listing removed at 0853 UTC.
2009 FGJPL Sentry14002022-2103307.0e-06-5.58-6.210JPL: "Analysis based on 50 observations spanning 8.0080 days (2009-Mar-16.3986 to 2009-Mar-24.40657)." Diameter approximately 0.027 km. from mean, weighted H=25.5.
NEODyS14002047-2091234.61e-06-5.76-6.230NEODyS: "Based on 50 optical observations (of which 0 are rejected as outliers) from 2009/03/16.399 to 2009/03/24.407."
2009 FEJPL Sentry14002044-210334.7e-06-3.50-3.510JPL: "Analysis based on 50 observations spanning 8.0659 days (2009-Mar-16.27919 to 2009-Mar-24.34507)." Diameter approximately 0.190 km. from mean, weighted H=21.3.
NEODyS1400204414.41e-06-3.51-3.510NEODyS: "Based on 50 optical observations (of which 0 are rejected as outliers) from 2009/03/16.280 to 2009/03/24.346."

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 25 March '09

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

1931Grabbed MPEC 2009-F76 - Observations of Comets - see above
1603Grabbed MPEC 2009-F75 - 2009 FW25 - see above
1400Noted that JPL Sentry has updated its 2009 FE risk assessment - see above
Noted that NEODyS has updated its 2009 FE risk assessment - see above
Noted that JPL Sentry has updated its 2009 FG risk assessment - see above
Noted that NEODyS has updated its 2009 FG risk assessment - see above
Noted that JPL Sentry has removed 2009 FG1 as an impact risk - see above
Noted that NEODyS has removed 2009 FG1 as an impact risk - see above
Grabbed MPEC 2009-F74 - Daily Orbit Update - see above