Contents  on 11 May '08


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 11 May '08

The MPC's NEO Confirmation Page has 10 listings: 2 new, 8 updated

When last checked at 2354 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had two new and eight updated listings. Of these, two were "one nighters." So far The Tracking News has counted a total of fifteen 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 11 May '08

Minor Planet Electronic Circulars

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

MPEC 2008-J59 - "16:18 UT" - 2008 JN20

MPEC 2008-J58 - "16:16 UT" - 2008 JM20

<< DOU on 11 May '08 >>  MPEC 2008-J57 - "06:08 UT" - Daily Orbit Update

Observers  on 11 May '08

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

CodeObserver / observatory
A50Andrushivka Obs. in the Ukraine, 1 in MPEC 2008-J57 -- 2008 HB38
H55Astronomical Research Obs. (ARO) in Illinois, 4 in MPECs 2008-J57, 2008-J58 & 2008-J59 -- 2008 JV19, 2008 JN20, 2008 JM20, 2008 HU4
703Catalina Sky Survey (CSS) in Arizona, 4 in MPECs 2008-J57, 2008-J58 & 2008-J59 -- 2008 JN20, 2008 JM20, 86067, 35107
113Drebach Obs. in Germany, 16 in MPECs 2008-J57, 2008-J58 & 2008-J59 -- 2008 JU2, 2008 JO14, 2008 JN20, 2008 JM20, 2008 JJ, 2008 JG, 2008 HS3, 2008 HD3, 2008 GA110, 2008 FN6, 2008 FN, 2007 VR183, 2007 VQ4, 2004 CR2, 3288, 1866
639Dresden Obs. in Germany, 1 in MPEC 2008-J57 -- 2007 VR183
151Eschenberg Obs. in Switzerland, 8 in MPECs 2008-J57, 2008-J58 & 2008-J59 -- 2008 JN20, 2008 JM20, 2008 JG, 2008 HS3, 2008 EC69, 2005 NB7, 2003 KO2, 1999 FA
F654Jim Bedient in Hawaii via Faulkes Telescope North in Hawaii, 1 in MPEC 2008-J59 -- 2008 JN20
B32Gelenau Obs. in Germany, 2 in MPECs 2008-J58 & 2008-J59 -- 2008 JN20, 2008 JM20
B34Green Island Obs. in Cyprus, 3 in MPEC 2008-J57 -- 2008 HS3, 2007 VR183, 2007 VQ4
196Homburg-Erbach Obs. in Germany, 4 in MPECs 2008-J57 & 2008-J59 -- 2008 JN20, 2008 HW1, 2007 VQ4, 11398
G92Jarnac Obs. in Arizona, 1 in MPEC 2008-J57 -- 53435
682Kanab Obs. in Utah, 1 in MPEC 2008-J59 -- 2008 JN20
B33Libbiano Obs. in Italy, 4 in MPECs 2008-J57, 2008-J58 & 2008-J59 -- 2008 JN20, 2008 JM20, 2008 HW1, 2007 VQ4
844Los Molinos Obs. in Uruguay, 1 in MPEC 2008-J57 -- 85839
130Lumezzane Obs. in Italy, 5 in MPEC 2008-J57 -- 2005 NB7, 2005 GG, 85628, 68278, 184266
118Modra Obs. in Slovakia, 2 in MPECs 2008-J58 & 2008-J59 -- 2008 JN20, 2008 JM20
474Mt. John Obs. in New Zealand, 2 in MPECs 2008-J58 & 2008-J59 -- 2008 JN20, 2008 JM20
G96Mt. Lemmon Survey in Arizona, 1 in MPEC 2008-J57 -- 86667
A13Naef Obs. in Switzerland, 4 in MPECs 2008-J57 & 2008-J59 -- 2008 JU2, 2008 JN20, 2008 JJ, 139289
557Ondrejov Obs. in the Czech Republic, 1 in MPEC 2008-J57 -- 2005 NB7
854Sabino Canyon Obs. in Arizona, 2 in MPECs 2008-J58 & 2008-J59 -- 2008 JN20, 2008 JM20
204Schiaparelli Obs. in Italy, 8 in MPEC 2008-J57 -- 2008 JS19, 2008 HS3, 2008 HK, 2008 HG, 2008 ES, 2007 VR183, 2005 SE71, 2004 JG6
E12Siding Spring Survey (SSS) in New South Wales, 5 in MPEC 2008-J57 -- 2008 JR14, 2005 GO21, 1998 HK3, 1994 AW1, 6456
F85Tiki Obs. in Tahiti, 2 in MPECs 2008-J57 & 2008-J58 -- 2008 JW2, 2008 JM20
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 11 May '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.





Notes for Today's Latest Risk Assessments
2008 HU4NEODyS12452055-2090212.27e-04-5.69-6.010NEODyS: "Based on 40 optical observations (of which 0 are rejected as outliers) from 2008/04/30.325 to 2008/05/10.387."

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 11 May '08

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

1656Grabbed MPEC 2008-J58 - 2008 JM20 - see above
Grabbed MPEC 2008-J59 - 2008 JN20 - see above
1245Noted that NEODyS has updated its 2008 HU4 risk assessment - see above
1244Grabbed MPEC 2008-J57 - Daily Orbit Update - see above