Contents  on 17 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.

Radar Astrometry  on 17 March '09

Radar observation of one object

The JPL Solar System Dynamics Group Radar Astrometry database has added or updated the following small-body radar observing work:


Data update noted at 2016 UTC when the database was dated 17 March

NEOCP Activity  on 17 March '09

The MPC's NEO Confirmation Page has 6 listings: 1 new, 5 updated

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

New MPECs  on 17 March '09

Minor Planet Electronic Circulars

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


MPEC 2009-F20 - "20:53 UT" - 2009 FP


MPEC 2009-F19 - "19:53 UT" - Comet C/2009 E1 (Itagaki)


MPEC 2009-F18 - "18:20 UT" - Comets C/2008 Y13, 2008 Y14, 2008 Y15, 2009 A2 (SOHO)


MPEC 2009-F17 - "18:12 UT" - Comets C/2008 Y10, 2008 Y11, 2008 Y12 (SOHO)


MPEC 2009-F16 - "17:07 UT" - 2009 FL


MPEC 2009-F15 - "17:01 UT" - 2009 FK


MPEC 2009-F14 - "16:57 UT" - 2009 FJ


MPEC 2009-F13 - "16:52 UT" - 2009 FH


MPEC 2009-F12 - "15:14 UT" - 2009 FG


MPEC 2009-F11 - "15:11 UT" - 2009 FF


MPEC 2009-F10 - "15:03 UT" - 2009 FE


MPEC 2009-F09 - "14:10 UT" - 2009 FD


<< DOU on 17 Mar. '09 >>  MPEC 2009-F08 - "06:09 UT" - Daily Orbit Update


MPEC 2009-F07 - "00:35 UT" - 2005 ES70 = 2009 EG1

Observers  on 17 March '09

A total of 46 observing facilities appear in today's MPECs.

CodeObserver / observatory
B03Alter Satzberg Obs. in Austria, 1 in MPEC 2009-F09 -- 2009 FD
H55Astronomical Research Obs. (ARO) in Illinois, 5 in MPECs 2009-F09, 2009-F10, 2009-F11, 2009-F13 & 2009-F14 -- 2009 FJ, 2009 FH, 2009 FF, 2009 FE, 2009 FD
B88Bigmuskie Obs. in Italy, 1 in MPEC 2009-F08 -- 2009 EP2
493Calar Alto Obs. in Spain, 2 in MPECs 2009-F08 & 2009-F11 -- 2009 FF, 2009 FA
160Castelmartini Obs. in Italy, 3 in MPECs 2009-F08 & 2009-F19 -- 2009 EP2, C/2009 E1, 85953
E00Castlemaine Obs. in Victoria, 1 in MPEC 2009-F19 -- C/2009 E1
703Catalina Sky Survey (CSS) in Arizona, 27 in MPECs 2009-F08, 2009-F13, 2009-F14, 2009-F15, 2009-F16 & 2009-F20 -- 2009 FP, 2009 FL, 2009 FK, 2009 FJ, 2009 FH, 2009 DQ4, 2009 CZ2, 2009 BD2, 2009 BB11, 2007 BT2, 2006 BC10, 2005 EM30, 2005 EF, 35396, 22771, 209924, 207970, 206910, 198856, 18109, 164400, 143651, 8566, 6050, 4596, 3122, 1627
A77Chante-Perdrix Obs. in France, 1 in MPEC 2009-F19 -- C/2009 E1
448Desert Moon Obs. in New Mexico, 7 in MPEC 2009-F08 -- 2009 DD1, 2009 CQ5, 2008 UC, 2004 BO41, 162882, 162080, 155334
H26Doc Greiner Research Obs. in Wisconsin, 1 in MPEC 2009-F09 -- 2009 FD
J27El Guijo Obs. in Spain, 2 in MPEC 2009-F08 -- 2009 DO111, 2007 BT2
253Goldstone DSS-14 70m antenna in southern California, 1 in radar -- 2009 DR3
J95Great Shefford Obs. in England, 4 in MPECs 2009-F08, 2009-F09, 2009-F10 & 2009-F12 -- 2009 FG, 2009 FE, 2009 FD, 2009 DO111
379Hamamatsu-Yuto Obs. in Japan, 4 in MPEC 2009-F08 -- 2009 EP2, 2008 WL60, 2007 BT2, 2006 BC10
J75La Sagra Obs. in Spain, 1 in MPEC 2009-F09 -- 2009 FD
J38La Vara Obs. in Spain, 1 in MPEC 2009-F19 -- C/2009 E1
B33Libbiano Obs. in Italy, 1 in MPEC 2009-F09 -- 2009 FD
560Madonna di Dossobuono Obs. in Italy, 5 in MPEC 2009-F08 -- 2009 EP2, 2009 DR3, 2009 DO111, 2009 CZ2, 2009 CR2
H01Magdalena Ridge Obs. (MRO) in New Mexico, 5 in MPECs 2009-F11, 2009-F13, 2009-F14, 2009-F15 & 2009-F16 -- 2009 FL, 2009 FK, 2009 FJ, 2009 FH, 2009 FF
J40Malaga Obs. in Spain, 1 in MPEC 2009-F19 -- C/2009 E1
B67Mirasteilas Obs. in Switzerland, 1 in MPEC 2009-F08 -- 207970
118Modra Obs. in Slovakia, 1 in MPEC 2009-F08 -- 2009 DO111
152Moletai Obs. in Lithuania, 1 in MPEC 2009-F08 -- 2008 OS9
213Montcabre Obs. in Spain, 1 in MPEC 2009-F19 -- C/2009 E1
A99Monte Baldo Obs. in Italy, 2 in MPECs 2009-F08 & 2009-F09 -- 2009 FD, 2009 FA
G96Mt. Lemmon Survey (MLS) in Arizona, 7 in MPECs 2009-F08, 2009-F09, 2009-F11 & 2009-F12 -- 2009 FG, 2009 FF, 2009 FD, 2009 DQ4, 2009 DK46, 2008 EE, 111253
A13Naef Obs. in Switzerland, 2 in MPEC 2009-F08 -- 2009 BA71, 22771
J47Nazaret Obs. in Spain, 1 in MPEC 2009-F19 -- C/2009 E1
D92Osaki Obs. in Japan, 1 in MPEC 2009-F19 -- C/2009 E1
A53Peschiera del Garda Obs. in Italy, 4 in MPEC 2009-F08 -- 2009 EP2, 2009 DR3, 2009 DO111, 2006 BC10
D29Purple Mtn. Obs. XuYi Station in China, 1 in MPEC 2009-F08 -- 206910
H06%Ernesto Guido in Italy via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-F09 -- 2009 FD
C494HI1-A instrument (4) aboard STEREO-A in heliocentric orbit leading Earth, 1 in MPEC 2009-F18 -- C/2009 A2
854Sabino Canyon Obs. in Arizona, 8 in MPECs 2009-F09, 2009-F10, 2009-F12, 2009-F13, 2009-F14, 2009-F15, 2009-F16 & 2009-F20 -- 2009 FP, 2009 FL, 2009 FK, 2009 FJ, 2009 FH, 2009 FG, 2009 FE, 2009 FD
B04Saint-Barthelemy Obs. in Italy, 2 in MPECs 2009-F11 & 2009-F12 -- 2009 FG, 2009 FF
H36Sandlot Obs. in Kansas, 4 in MPECs 2009-F09, 2009-F10, 2009-F11 & 2009-F12 -- 2009 FG, 2009 FF, 2009 FE, 2009 FD
B74Santa Maria de Montmagastrell Obs. in Spain, 1 in MPEC 2009-F19 -- C/2009 E1
204Schiaparelli Obs. in Italy, 3 in MPECs 2009-F11, 2009-F12 & 2009-F19 -- 2009 FG, 2009 FF, C/2009 E1
E12Siding Spring Survey in New South Wales, 1 in MPEC 2009-F08 -- 2009 BD77
2492LASCO Coronagraph 2 (SOHO C2) aboard the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 5 in MPECs 2009-F17 & 2009-F18 -- C/2008 Y14, C/2008 Y13, C/2008 Y12, C/2008 Y11, C/2008 Y10
2493LASCO Coronagraph 3 (SOHO C3) aboard the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 4 in MPECs 2009-F17 & 2009-F18 -- C/2009 A2, C/2008 Y15, C/2008 Y13, C/2008 Y10
587Sormano Obs. in Italy, 4 in MPEC 2009-F08 -- 2009 EM1, 2009 ED1, 2009 CZ, 2008 OB9
691Spacewatch 0.9m telescope in Arizona, 5 in MPECs 2009-F08, 2009-F09 & 2009-F10 -- 2009 FE, 2009 FD, 2009 EZ, 2009 DR36, 5693
291Spacewatch 1.8m telescope in Arizona, 23 in MPECs 2009-F08, 2009-F10 & 2009-F11 -- 2009 FF, 2009 FE, 2009 EK1, 2009 EE1, 2009 DO111, 2009 DO1, 2009 DL46, 2009 DC12, 2009 DB45, 2009 DB12, 2009 DB1, 2009 DA45, 2009 CT1, 2009 CS, 2009 CN5, 2009 CB3, 2008 YS27, 2008 WZ13, 2006 HW57, 2004 BE68, 2003 MD7, 2000 YH4, 2000 CK59
673Table Mtn. Obs. in southern California, 1 in MPEC 2009-F19 -- C/2009 E1
6735Jim Young via Table Mtn. Obs. in southern California, 7 in MPECs 2009-F09, 2009-F10, 2009-F11, 2009-F12, 2009-F13, 2009-F14 & 2009-F15 -- 2009 FK, 2009 FJ, 2009 FH, 2009 FG, 2009 FF, 2009 FE, 2009 FD
B18Terskol Obs. in Russia, 1 in MPEC 2009-F20 -- 2009 FP
367Yatsuka Obs. in Japan, 1 in MPEC 2009-F19 -- C/2009 E1
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 17 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 FPJPL Sentry23582020-2108646.6e-08-6.32-7.430JPL: "Analysis based on 12 observations spanning .56939 days (2009-Mar-17.26958 to 2009-Mar-17.83897)." Diameter approximately 0.088 km. from mean, weighted H=22.9.
2009 FKJPL Sentry20162042-210521.5e-09-10.37-10.40JPL: "Analysis based on 18 observations spanning .15826 days (2009-Mar-17.29255 to 2009-Mar-17.45081)." Diameter approximately 0.008 km. from mean, weighted H=28.2.
2009 FJJPL Sentry19022038-2107351.2e-04-3.74-3.850JPL: "Analysis based on 26 observations spanning .18682 days (2009-Mar-17.24376 to 2009-Mar-17.43058)." Diameter approximately 0.040 km. from mean, weighted H=24.7.
2009 FGJPL Sentry17312049-2108597.2e-06-5.52-6.240JPL: "Analysis based on 29 observations spanning .94369 days (2009-Mar-16.3986 to 2009-Mar-17.34229)." Diameter approximately 0.028 km. from mean, weighted H=25.4.
2009 FEJPL Sentry17312013-21031022.9e-06-3.14-3.330JPL: "Analysis based on 30 observations spanning 1.1285 days (2009-Mar-16.27919 to 2009-Mar-17.4077)." Diameter approximately 0.184 km. from mean, weighted H=21.3.
2009 DO111JPL Sentry14442068-2108171.1e-04-3.23-3.600JPL: "Analysis based on 52 observations spanning 22.772 days (2009-Feb-22.33494 to 2009-Mar-17.10739)." Diameter approximately 0.094 km. from mean, weighted H=22.8.
NEODyS14442055-2089167.33e-07-5.26-5.620NEODyS: "Based on 52 optical observations (of which 0 are rejected as outliers) from 2009/02/22.336 to 2009/03/17.108."

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 17 March '09

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

2358Noted that JPL Sentry has posted 2009 FP as an impact risk - see above
2200Grabbed MPEC 2009-F20 - 2009 FP - see above
2016Noted that JPL Sentry has posted 2009 FK as an impact risk - see above
Grabbed MPEC 2009-F19 - Comet C/2009 E1 (Itagaki) - see above
Noted Radar Astrometry database update - see above
1902Noted that JPL Sentry has posted 2009 FJ as an impact risk - see above
Grabbed MPEC 2009-F18 - Comets C/2008 Y13, 2008 Y14, 2008 Y15, 2009 A2 (SOHO) - see above
1818Grabbed MPEC 2009-F17 - Comets C/2008 Y10, 2008 Y11, 2008 Y12 (SOHO) - see above
1731Noted that JPL Sentry has posted 2009 FE as an impact risk - see above
Noted that JPL Sentry has posted 2009 FG as an impact risk - see above
Grabbed MPEC 2009-F15 - 2009 FK - see above
Grabbed MPEC 2009-F16 - 2009 FL - see above
1701Grabbed MPEC 2009-F13 - 2009 FH - see above
Grabbed MPEC 2009-F14 - 2009 FJ - see above
1532Grabbed MPEC 2009-F09 - 2009 FD - see above
Grabbed MPEC 2009-F10 - 2009 FE - see above
Grabbed MPEC 2009-F11 - 2009 FF - see above
Grabbed MPEC 2009-F12 - 2009 FG - see above
1444Noted that JPL Sentry has updated its 2009 DO111 risk assessment - see above
Noted that NEODyS has updated its 2009 DO111 risk assessment - see above
Grabbed MPEC 2009-F08 - Daily Orbit Update - see above
0040Grabbed MPEC 2009-F07 - 2005 ES70 = 2009 EG1 - see above