Contents  on 3 March '08

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 3 March '08

The MPC's NEO Confirmation Page has 7 listings: 3 new, 4 updated

When last checked at 2354 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had three new and four updated listings. Of these, five were "one nighters." So far The Tracking News has counted a total of 24 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 3 March '08

Minor Planet Electronic Circulars

As of last check at 2354 UTC, there have been 23 MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2008-E34 - "16:13 UT" - 2005 EY169 = 2008 EK


MPEC 2008-E33 - "13:30 UT" - 2008 ES


MPEC 2008-E32 - "13:25 UT" - 2008 ER


MPEC 2008-E31 - "13:22 UT" - 2008 EQ


MPEC 2008-E30 - "13:19 UT" - 2008 EP


MPEC 2008-E29 - "13:16 UT" - 2008 EO


MPEC 2008-E28 - "13:14 UT" - 2008 EN


MPEC 2008-E27 - "13:11 UT" - 2008 EM


MPEC 2008-E26 - "13:08 UT" - 2008 EL


MPEC 2008-E25 - "13:05 UT" - 2008 EJ


MPEC 2008-E24 - "13:01 UT" - 2008 EH


MPEC 2008-E23 - "12:59 UT" - 2008 EG


MPEC 2008-E22 - "12:50 UT" - 2008 EF


MPEC 2008-E21 - "12:45 UT" - 2008 EE


MPEC 2008-E20 - "12:42 UT" - 2008 DH23


<< DOU on 3 Mar. '08 >>  MPEC 2008-E19 - "07:08 UT" - Daily Orbit Update


MPEC 2008-E18 - "04:18 UT" - Observations of Comets


MPEC 2008-E17 - "03:54 UT" - Comet C/2008 C1 (Chen-Gao)


MPEC 2008-E16 - "03:46 UT" - Comet P/2008 A2 (LINEAR)


MPEC 2008-E15 - "03:44 UT" - Comet C/2008 A1 (McNaught)


MPEC 2008-E14 - "03:40 UT" - Comet C/2007 Y2 (McNaught)


MPEC 2008-E13 - "03:35 UT" - Comet C/2007 Y1 (LINEAR)


MPEC 2008-E12 - "03:29 UT" - Comet C/2007 N3 (Lulin)

Observers  on 3 March '08

A total of 63 observing facilities appear in today's MPECs.

CodeObserver / observatory
6581Dave Balam via 1.8m Plaskett Telescope (1.8m Plaskett) in British Columbia, 6 in MPECs 2008-E21, 2008-E24, 2008-E25, 2008-E26, 2008-E30 & 2008-E34 -- 2008 EP, 2008 EL, 2008 EK, 2008 EJ, 2008 EH, 2008 EE
B161st Moscow Gymnasium Obs. in Russia, 2 in MPECs 2008-E17 & 2008-E18 -- C/2008 C1, 17P
H077300 Obs. in New Mexico, 1 in MPEC 2008-E18 -- 46P
349Ageo Obs. in Japan, 9 in MPECs 2008-E12, 2008-E17 & 2008-E18 -- C/2008 C1, C/2007 S2, C/2007 N3, C/2007 M2, C/2005 L3, 172P, 117P, 70P, 7P
B37Ametlla del Valles Obs. in Spain, 6 in MPEC 2008-E18 -- C/2007 B2, C/2005 L3, 173P, 110P, 74P, 29P
H55Astronomical Research Obs. (ARO) in Illinois, 15 in MPECs 2008-E19, 2008-E20, 2008-E25, 2008-E26, 2008-E30 & 2008-E34 -- 2008 EP, 2008 EL, 2008 EK, 2008 EJ, 2008 DV, 2008 DJ, 2008 DH23, 2008 DF5, 2008 CO116, 2008 CA6, 2008 AU26, 2007 MK13, 2006 KE89, 2002 FW5, 1998 HK3
J51Atlante Obs. in the Canary Islands, 3 in MPEC 2008-E18 -- C/2007 B2, C/2006 S5, 70P
467Auckland Obs. in New Zealand, 6 in MPECs 2008-E15 & 2008-E18 -- C/2008 A1, C/2007 Q3, C/2007 B2, C/2006 S5, 26P, 8P
B59Borken Obs. in Germany, 1 in MPEC 2008-E18 -- C/2006 S5
215Buchloe Obs. in Germany, 1 in MPEC 2008-E18 -- 196P
J96Cantabria Obs. in Spain, 7 in MPEC 2008-E18 -- C/2007 S2, C/2007 B2, C/2006 S5, 79P, 46P, 17P, 8P
B09Capannoli Obs. in Italy, 2 in MPEC 2008-E19 -- 2005 BE2, 170891
B20Carmelita Obs. in Spain, 2 in MPEC 2008-E18 -- C/2006 S5, 29P
703Catalina Sky Survey (CSS) in Arizona, 15 in MPECs 2008-E18, 2008-E19, 2008-E23, 2008-E25, 2008-E26 & 2008-E30 -- 2008 EP, 2008 EL, 2008 EJ, 2008 EG, 2008 CP116, C/2007 D3, C/2007 B2, C/2006 K1, 2005 YV128, 183P, 180P, 172P, 70P, 65P, 7P
B24Cesson Obs. in France, 3 in MPEC 2008-E18 -- C/2006 S5, 110P, 29P
A77Chante-Perdrix Obs. in France, 4 in MPEC 2008-E18 -- P/2007 T6, 183P, 110P, 29P
B50Corner Obs. in Germany, 1 in MPEC 2008-E18 -- 46P
106Crni Vrh Obs. in Slovenia, 2 in MPECs 2008-E17 & 2008-E18 -- C/2008 C1, 46P
448Desert Moon Obs. in New Mexico, 4 in MPEC 2008-E19 -- 2008 DJ, 2008 DE, 2008 DD, 2008 AN33
595Farra d'Isonzo Obs. in Italy, 5 in MPECs 2008-E21, 2008-E25, 2008-E26, 2008-E30 & 2008-E34 -- 2008 EP, 2008 EL, 2008 EK, 2008 EJ, 2008 EE
372Geisei Obs. in Japan, 6 in MPECs 2008-E17 & 2008-E18 -- C/2008 C1, 70P, 46P, 29P, 17P, 8P
143Gnosca Obs. in Switzerland, 4 in MPECs 2008-E21, 2008-E25, 2008-E26 & 2008-E34 -- 2008 EL, 2008 EK, 2008 EJ, 2008 EE
683Goodricke-Pigott Obs. in Arizona, 1 in MPEC 2008-E18 -- 70P
J95Great Shefford Obs. in England, 6 in MPECs 2008-E20, 2008-E25, 2008-E30, 2008-E31, 2008-E33 & 2008-E34 -- 2008 ES, 2008 EQ, 2008 EP, 2008 EK, 2008 EJ, 2008 DH23
F84Hibiscus Obs. in Tahiti, 1 in MPEC 2008-E19 -- 2008 DK5
D88Hiratsuka Obs., 5 in MPECs 2008-E15, 2008-E17 & 2008-E18 -- C/2008 C1, C/2008 A1, C/2006 W3, 93P, 46P
A21Irmtraut Obs. in Germany, 1 in MPEC 2008-E18 -- P/2007 T6
987Isle of Man Obs. on the Isle of Man, 3 in MPECs 2008-E17 & 2008-E18 -- C/2008 C1, 46P, 17P
G92Jarnac Obs. in Arizona, 1 in MPEC 2008-E18 -- C/2007 D3
G89Kachina Obs. in Arizona, 1 in MPEC 2008-E18 -- 172P
585Kiev Comet Station in the Ukraine, 7 in MPECs 2008-E13, 2008-E16, 2008-E17 & 2008-E18 -- C/2008 C1, P/2008 A2, C/2007 Y1, C/2007 B2, 180P, 124P, 79P
704LINEAR in New Mexico, 25 in MPECs 2008-E13, 2008-E18, 2008-E19, 2008-E21, 2008-E25, 2008-E26 & 2008-E31 -- 2008 EQ, 2008 EL, 2008 EJ, 2008 EE, 2008 DH5, C/2007 Y1, C/2007 S2, 2007 RV9, C/2007 D3, C/2007 D1, C/2006 W3, P/2005 Y2, 2005 BE2, 2002 TD66, 16657, 9400, 6037, 124P, 116P, 110P, 74P, 70P, 22P, 17P, 7P
699LONEOS in Arizona, 1 in MPEC 2008-E18 -- P/2005 Y2
J38La Vara Obs. in Spain, 4 in MPEC 2008-E18 -- C/2006 W3, C/2006 S5, 29P, 17P
J55Los Altos de Arguineguin Obs., 1 in MPEC 2008-E18 -- 124P
130Lumezzane Obs. in Italy, 3 in MPECs 2008-E13 & 2008-E18 -- C/2007 Y1, C/2007 M2, C/2007 D3
J46Montana Blanca Obs. in the Canary Islands, 4 in MPECs 2008-E17, 2008-E18 & 2008-E19 -- C/2008 C1, 170891, 46P, 29P
213Montcabre Obs. in Spain, 9 in MPECs 2008-E17 & 2008-E18 -- C/2008 C1, C/2006 S5, 180P, 124P, 65P, 46P, 29P, 17P, 7P
945Monte Deva Obs. in Spain, 4 in MPEC 2008-E18 -- C/2007 B2, C/2006 S5, C/2005 L3, 46P
G96Mt. Lemmon Survey (MLS) in Arizona, 21 in MPECs 2008-E13, 2008-E18, 2008-E19, 2008-E20, 2008-E22, 2008-E24, 2008-E26, 2008-E27, 2008-E28, 2008-E29, 2008-E32, 2008-E33 & 2008-E34 -- 2008 ES, 2008 ER, 2008 EO, 2008 EN, 2008 EM, 2008 EL, 2008 EK, 2008 EH, 2008 EF, 2008 DH23, 2008 CJ70, C/2007 Y1, 2002 CF26, 18736, 183P, 170P, 110P, 70P, 65P, 22P, 4P
J93Mt. Tuffley Obs. in England, 2 in MPEC 2008-E18 -- 124P, 93P
A13Naef Obs. in Switzerland, 1 in MPEC 2008-E19 -- 177049
J47Nazaret Obs. in Spain, 11 in MPECs 2008-E16 & 2008-E18 -- P/2008 A2, C/2006 S5, 194P, 180P, 172P, 124P, 65P, 46P, 29P, 17P, 7P
A24New Millennium Obs. in Italy, 1 in MPEC 2008-E21 -- 2008 EE
423North Ryde Obs. in New South Wales, 2 in MPECs 2008-E14 & 2008-E15 -- C/2008 A1, C/2007 Y2
B49Paus Obs. in Spain, 3 in MPEC 2008-E18 -- C/2006 S5, 124P, 65P
A53Peschiera del Garda Obs. in Italy, 4 in MPEC 2008-E19 -- 2008 DJ, 2008 CN1, 2008 CD22, 2007 TG8
D29Purple Mtn. Obs. XuYi Station in China, 5 in MPECs 2008-E18, 2008-E19 & 2008-E26 -- 2008 EL, 2008 DG4, C/2007 B2, 141432, 3552
J42Puzol Obs. in Spain, 2 in MPEC 2008-E18 -- C/2007 B2, 180P
473Remanzacco Obs. in Italy, 3 in MPECs 2008-E18, 2008-E21 & 2008-E34 -- 2008 EK, 2008 EE, 29P
A41Rezman Obs. in Slovenia, 2 in MPECs 2008-E17 & 2008-E18 -- C/2008 C1, C/2006 W3
939Rodeno Obs. in Spain, 9 in MPECs 2008-E17 & 2008-E18 -- C/2008 C1, C/2007 B2, C/2006 W3, C/2006 S5, 180P, 124P, 93P, 46P, 17P
854Sabino Canyon Obs. in Arizona, 8 in MPECs 2008-E21, 2008-E23, 2008-E25, 2008-E26, 2008-E30, 2008-E31, 2008-E33 & 2008-E34 -- 2008 ES, 2008 EQ, 2008 EP, 2008 EL, 2008 EK, 2008 EJ, 2008 EG, 2008 EE
204Schiaparelli Obs. in Italy, 13 in MPECs 2008-E13, 2008-E18, 2008-E21, 2008-E26, 2008-E30 & 2008-E34 -- 2008 EP, 2008 EL, 2008 EK, 2008 EE, C/2007 Y1, C/2007 D3, C/2006 K1, 196P, 194P, 117P, 116P, 29P, 4P
E12Siding Spring Survey (SSS) in New South Wales, 7 in MPECs 2008-E14, 2008-E15, 2008-E18 & 2008-E19 -- 2008 CG119, 2008 BQ16, C/2008 A1, C/2007 Y2, C/2007 Q3, 173689, 26P
H85Silver Spring Obs. in Maryland, 3 in MPECs 2008-E19, 2008-E21 & 2008-E34 -- 2008 EK, 2008 EE, 2008 CB22
691Spacewatch 0.9m telescope in Arizona, 3 in MPECs 2008-E18 & 2008-E20 -- 2008 DH23, 170P, 4P
291Spacewatch 1.8m telescope in Arizona, 11 in MPECs 2008-E18, 2008-E19, 2008-E20, 2008-E23 & 2008-E25 -- 2008 EJ, 2008 EG, 2008 DH23, 2008 DG5, 2008 CO, 2008 CK119, 2008 CD71, 2008 AG1, P/2007 T6, 2003 FH, 2002 AJ129
A97Stammersdorf Obs. in Austria, 2 in MPEC 2008-E18 -- C/2007 B2, 17P
673Table Mtn. Obs. in southern California, 1 in MPEC 2008-E17 -- C/2008 C1
J70Vega del Thader Obs. in Spain, 2 in MPEC 2008-E18 -- 110P, 29P
J30Ventilla Obs., 1 in MPEC 2008-E19 -- 4954
C42Xingming Obs. in China, 3 in MPECs 2008-E17 & 2008-E18 -- C/2008 C1, C/2007 B2, C/2006 W3

Impact Risk Monitoring  on 3 March '08

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2354 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.
Note that the time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090.
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
2008 ESJPL Sentry15212059-210553.4e-09-5.59-5.710JPL: "Analysis based on 16 observations spanning .93054 days (2008-Mar-02.4433 to 2008-Mar-03.37384)." Diameter approximately 0.660 km. from mean, weighted H=18.5.
2008 EHJPL Sentry16282049-210582.5e-06-4.90-4.920JPL: "Analysis based on 14 observations spanning 1.9850 days (2008-Mar-01.28593 to 2008-Mar-03.27089)." Diameter approximately 0.091 km. from mean, weighted H=22.9.
2008 DG5JPL Sentry1521R E M O V E DJPL: Risk listing removed at 1036 UTC.
NEODyS1521R E M O V E D

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 3 March '08

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

1628Noted that JPL Sentry has posted 2008 EH as an impact risk - see above
Grabbed MPEC 2008-E34 - 2005 EY169 = 2008 EK - see above
1524Grabbed MPEC 2008-E21 - 2008 EE - see above
Grabbed MPEC 2008-E30 - 2008 EP - see above
1522Grabbed MPEC 2008-E19 - Daily Orbit Update - see above
Grabbed MPEC 2008-E20 - 2008 DH23 - see above
Grabbed MPEC 2008-E22 - 2008 EF - see above
Grabbed MPEC 2008-E23 - 2008 EG - see above
Grabbed MPEC 2008-E24 - 2008 EH - see above
Grabbed MPEC 2008-E25 - 2008 EJ - see above
Grabbed MPEC 2008-E26 - 2008 EL - see above
Grabbed MPEC 2008-E27 - 2008 EM - see above
Grabbed MPEC 2008-E28 - 2008 EN - see above
Grabbed MPEC 2008-E29 - 2008 EO - see above
Grabbed MPEC 2008-E31 - 2008 EQ - see above
Grabbed MPEC 2008-E32 - 2008 ER - see above
Grabbed MPEC 2008-E33 - 2008 ES - see above
1521Noted that JPL Sentry has removed 2008 DG5 as an impact risk - see above
Noted that NEODyS has removed 2008 DG5 as an impact risk - see above
Noted that JPL Sentry has posted 2008 ES as an impact risk - see above
0509Grabbed MPEC 2008-E17 - Comet C/2008 C1 (Chen-Gao) - see above
Grabbed MPEC 2008-E18 - Observations of Comets - see above
0352Grabbed MPEC 2008-E12 - Comet C/2007 N3 (Lulin) - see above
Grabbed MPEC 2008-E13 - Comet C/2007 Y1 (LINEAR) - see above
Grabbed MPEC 2008-E14 - Comet C/2007 Y2 (McNaught) - see above
Grabbed MPEC 2008-E15 - Comet C/2008 A1 (McNaught) - see above
Grabbed MPEC 2008-E16 - Comet P/2008 A2 (LINEAR) - see above