Contents  on 19 February '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 19 February '09

The MPC's NEO Confirmation Page has 5 listings: 1 new, 4 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one new and four updated listings. Of these, one was a "one nighter." So far The Tracking News has counted a total of eighteen 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 19 February '09

Minor Planet Electronic Circulars

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


MPEC 2009-D33 - "23:53 UT" - 2009 DF1


MPEC 2009-D32 - "23:50 UT" - 2009 DE1


MPEC 2009-D31 - "23:47 UT" - 2009 DD1


MPEC 2009-D30 - "23:45 UT" - 2009 DC1


MPEC 2009-D29 - "23:41 UT" - 2009 DB1


MPEC 2009-D28 - "23:38 UT" - 2009 DA1


MPEC 2009-D27 - "23:35 UT" - 2009 DZ


MPEC 2009-D26 - "14:43 UT" - 2009 DX


MPEC 2009-D25 - "14:38 UT" - 2009 DW


MPEC 2009-D24 - "14:34 UT" - 2009 DV


MPEC 2009-D23 - "14:28 UT" - 2009 BD2


<< DOU on 19 Feb. '09 >>  MPEC 2009-D22 - "07:07 UT" - Daily Orbit Update

Observers  on 19 February '09

A total of 27 observing facilities appear in today's MPECs.

CodeObserver / observatory
H55Astronomical Research Obs. (ARO) in Illinois, 19 in MPEC 2009-D22 -- 2009 CW1, 2009 CV5, 2009 CV, 2009 CS, 2009 CP5, 2009 CA2, 2009 BM2, 2009 BB11, 2009 AH16, 2009 AF16, 2008 YR2, 2008 XP2, 2008 QT3, 2006 BC10, 2005 NJ1, 2005 CW25, 2003 DN4, 2000 BL19, 1998 QE2
A74Bergen-Enkheim Obs. in Germany, 2 in MPEC 2009-D22 -- 2008 CH116, 2005 EF
493Calar Alto Obs. in Spain, 5 in MPECs 2009-D28, 2009-D29, 2009-D30, 2009-D31 & 2009-D32 -- 2009 DE1, 2009 DD1, 2009 DC1, 2009 DB1, 2009 DA1
160Castelmartini Obs. in Italy, 3 in MPEC 2009-D22 -- 2008 RM98, 2008 QT3, 137925
703Catalina Sky Survey (CSS) in Arizona, 6 in MPECs 2009-D23, 2009-D29, 2009-D30, 2009-D31, 2009-D32 & 2009-D33 -- 2009 DF1, 2009 DE1, 2009 DD1, 2009 DC1, 2009 DB1, 2009 BD2
J27El Guijo Obs. in Spain, 2 in MPEC 2009-D22 -- 2008 EE, 2006 WZ2
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2009-D29 -- 2009 DB1
143Gnosca Obs. in Switzerland, 3 in MPECs 2009-D29, 2009-D30 & 2009-D31 -- 2009 DD1, 2009 DC1, 2009 DB1
A17Guidestar Obs. in Germany, 5 in MPEC 2009-D22 -- 2009 CR2, 2009 CQ1, 2009 CP5, 2008 WL60, 162080
379Hamamatsu-Yuto Obs. in Japan, 4 in MPEC 2009-D22 -- 2009 BD77, 2008 EE5, 2006 WZ2, 2000 BL19
704LINEAR in New Mexico, 10 in MPECs 2009-D22, 2009-D24, 2009-D25, 2009-D26, 2009-D27 & 2009-D31 -- 2009 DZ, 2009 DX, 2009 DW, 2009 DV, 2009 DD1, 2006 GQ2, 2005 NJ1, 162385, 144411, 3122
J75La Sagra Obs. in Spain, 1 in MPEC 2009-D28 -- 2009 DA1
B33Libbiano Obs. in Italy, 2 in MPECs 2009-D24 & 2009-D33 -- 2009 DV, 2009 DF1
H01Magdalena Ridge Obs. (MRO) in New Mexico, 8 in MPECs 2009-D24, 2009-D25, 2009-D26, 2009-D29, 2009-D30, 2009-D31, 2009-D32 & 2009-D33 -- 2009 DX, 2009 DW, 2009 DV, 2009 DF1, 2009 DE1, 2009 DD1, 2009 DC1, 2009 DB1
A13Naef Obs. in Switzerland, 2 in MPECs 2009-D29 & 2009-D31 -- 2009 DD1, 2009 DB1
A24New Millennium Obs. in Italy, 1 in MPEC 2009-D29 -- 2009 DB1
941Pla D'Arguines Obs. in Spain, 2 in MPECs 2009-D28 & 2009-D29 -- 2009 DB1, 2009 DA1
854Sabino Canyon Obs. in Arizona, 5 in MPECs 2009-D24, 2009-D26, 2009-D29, 2009-D30 & 2009-D31 -- 2009 DX, 2009 DV, 2009 DD1, 2009 DC1, 2009 DB1
104San Marcello Pistoiese Obs. in Italy, 2 in MPECs 2009-D30 & 2009-D31 -- 2009 DD1, 2009 DC1
204Schiaparelli Obs. in Italy, 5 in MPECs 2009-D22, 2009-D24, 2009-D25, 2009-D29 & 2009-D31 -- 2009 DW, 2009 DV, 2009 DD1, 2009 DB1, 206910
E12Siding Spring Survey (SSS) in New South Wales, 7 in MPECs 2009-D22 & 2009-D23 -- 2009 CT, 2009 CC3, 2009 BD2, 2002 EB3, 35396, 206910, 161989
071Smolyan Obs. in Bulgaria, 1 in MPEC 2009-D22 -- 2009 BD81
587Sormano Obs. in Italy, 3 in MPECs 2009-D29, 2009-D30 & 2009-D31 -- 2009 DD1, 2009 DC1, 2009 DB1
291Spacewatch 1.8m telescope in Arizona, 1 in MPEC 2009-D23 -- 2009 BD2
A48Verona Obs. in Italy, 1 in MPEC 2009-D22 -- 2009 CT5
I13Washington D.C. Obs. in Washington, D.C., 1 in MPEC 2009-D22 -- 4179
198Wildberg Obs. in Germany, 2 in MPEC 2009-D22 -- 2009 CV, 138883
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 19 February '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 CV5JPL Sentry1426R E M O V E DJPL: Risk listing removed at 0951 UTC.
NEODyS1426R E M O V E D-
2009 CR2JPL Sentry1426R E M O V E DJPL: Risk listing removed at 0949 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 19 February '09

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

2358Grabbed MPEC 2009-D27 - 2009 DZ - see above
Grabbed MPEC 2009-D28 - 2009 DA1 - see above
Grabbed MPEC 2009-D29 - 2009 DB1 - see above
Grabbed MPEC 2009-D30 - 2009 DC1 - see above
Grabbed MPEC 2009-D31 - 2009 DD1 - see above
Grabbed MPEC 2009-D32 - 2009 DE1 - see above
Grabbed MPEC 2009-D33 - 2009 DF1 - see above
1458Grabbed MPEC 2009-D23 - 2009 BD2 - see above
Grabbed MPEC 2009-D24 - 2009 DV - see above
Grabbed MPEC 2009-D25 - 2009 DW - see above
Grabbed MPEC 2009-D26 - 2009 DX - see above
1426Noted that JPL Sentry has removed 2009 CR2 as an impact risk - see above
Noted that JPL Sentry has removed 2009 CV5 as an impact risk - see above
Noted that NEODyS has removed 2009 CV5 as an impact risk - see above
Grabbed MPEC 2009-D22 - Daily Orbit Update - see above