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Contents  on 19 March '08

• IAU Minor Planet Center
  • NEOCP Activity -- five listings: 2 new, 3 updated
  • New MPECs -- three MPECs
• Observers -- eight observing facilities
• Impact Risk Monitoring -- one object
• Chronology

Resources:

• Consolidated Risk Tables - the CRT page
• Earth's Busy Neighborhood Traffic Report
• Ephemerides for risk-rated and nearby objects
• Old & new CRT Archive
• Old News Archive & Small Objects Archive

The latest A/CC news is available via framed access,  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.

<<   Top | Contents | NEOCP | MPECs | Observers | Risks | Chronology | Index   >>

NEOCP Activity  on 19 March '08

The MPC's NEO Confirmation Page has 5 listings: 2 new, 3 updated

When last checked at 2354 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had two new and three updated listings. Of these, four were "one nighters."

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object by Birtwhistle et al. at Suno Observatory.

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New MPECs  on 19 March '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-F08 time-stamped "06:10 UT" - Daily Orbit Update - see below
• MPEC 2008-F09 time-stamped "12:00 UT" - 2006 UM216 - see below
• MPEC 2008-F10 time-stamped "22:45 UT" - 2006 QH181

MPEC 2008-F10 - "22:45 UT" - 2006 QH181

• K06QI1H   2006 QH181 (q=37.528 AU, Q=96.910 AU, H=3.8 ~589 km) from Mauna Kea (March 4.31p1, 5.23p1 & 5.31p1)

MPEC 2008-F09 - "12:00 UT" - 2006 UM216

• K06UL6M   2006 UM216 (Q=4.076 AU, H=16.0 ~2.14 km, q=1.288 AU) from David Tholen's team on Mauna Kea (Feb. 27.54-55p2 & March 13.59p2)

<< DOU on 19 Mar. '08 >>  MPEC 2008-F08 - "06:10 UT" - Daily Orbit Update

• Observations of recently (no longer) risk-listed objects
• K08D05J   2008 DJ5 (arc=16 days, H=19.9 ~355m) from the Spacewatch 0.9m telescope (March 15.21-24p3)
• Observations of small asteroids (H>22.0)
• K08E68Y   2008 EY68 (q=0.177 AU, arc=4 days, H=22.3 ~117m) from Spacewatch 0.9m (March 15.32-35p3)
• Observations of almost-small asteroids (21.7<H<=22.0)
• K06F35V   2006 FV35 (arc=5 opp, H=21.8 ~148m) from Spacewatch 0.9m (March 16.37p1)
• Observations of other objects
• K08E85M   2008 EM85 (arc=5 days, H=19.4 ~446m) from Jim Young via Table Mtn. Obs. (March 18.22-31p8), University Hills Obs. (March 18.42-43p6), and Wildberg Obs. (March 18.88-89p5)
• K08E07T   2008 ET7 (arc=9 days, H=21.0 ~214m) from Spacewatch 0.9m (March 15.15-19p3)
• K08D23H   2008 DH23 (arc=15 days, H=19.7 ~389m) from Spacewatch 0.9m (March 15.40-42p2)
• K08CB8Z   2008 CZ118 (arc=35 days, H=18.4 ~708m) from Inastars Obs. (March 17.94p4 & 18.81p2)
• K08AB0Z   2008 AZ110 (Q=4.029 AU, arc=2 opp, H=18.3 ~741m) from Tholen et al. (Feb. 27.38p2)
• K08A00E   2008 AE (arc=2 opp, H=19.7 ~389m) from Inastars Obs. (March 17.91-92p5) and Wildberg Obs. (March 18.86-88p4)
• K07N04S   2007 NS4 (arc=2 opp, H=19.0 ~537m) from Spacewatch 0.9m (March 15.23p1)
• K05S71E   2005 SE71 (arc=2 opp, H=18.1 ~812m) from Inastars Obs. (March 18.83-84p4)
• K02R25U   2002 RU25 (arc=3 opp, H=17.4 ~1.12 km) from Spacewatch 0.9m (March 16.19-22p3)
• H7651   177651 2004 XM14 from Inastars Obs. (March 18.92p1)
• G4222   164222 2004 RN9 from La Murta Obs. (March 17.97-99p3)
• E1614   141614 2002 JV15 from Spacewatch 0.9m (March 16.24-28p3)
• D6874   136874 1998 FH74 from Spacewatch 0.9m (March 15.38-41p3)
• 35107   35107 1991 VH from Goodricke-Pigott Obs. (March 6.47-50p3)
• 10145   10145 1994 CK1 from Spacewatch 0.9m (March 15.37-41p3)
• 03552   3552 Don Quixote (1983 SA) from Spacewatch 0.9m (March 15.15-18p3)

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Observers  on 19 March '08

Eight observing facilities appear in today's MPECs.

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Impact Risk Monitoring  on 19 March '08

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.

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Chronology  on 19 March '08

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