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Contents  on 1 July '08

• IAU Minor Planet Center
  • NEOCP Activity -- five listings: 5 updated
  • New MPECs -- six MPECs
• Observers -- 21 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.

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NEOCP Activity  on 1 July '08

The MPC's NEO Confirmation Page has 5 listings: 5 updated

When last checked at 2357 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had five updated listings. Of these, three were "one nighters." So far The Tracking News has counted a total of thirteen 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.

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New MPECs  on 1 July '08

Minor Planet Electronic Circulars

As of last check at 2357 UTC, there have been six MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

• MPEC 2008-N01 time-stamped "04:34 UT" - 2008 MP1 - see below
• MPEC 2008-N02 time-stamped "06:06 UT" - Daily Orbit Update - see below
• MPEC 2008-N03 time-stamped "14:11 UT" - 2008 MQ1 - see below
• MPEC 2008-N04 time-stamped "14:14 UT" - 2008 MR1 - see below
• MPEC 2008-N05 time-stamped "15:16 UT" - 2008 MU1 - see below
• MPEC 2008-N06 time-stamped "17:03 UT" - 2008 MV1

MPEC 2008-N06 - "17:03 UT" - 2008 MV1

• K08M01V   2008 MV1 (risk-listed, Earth MOID=9.0 LD, H=22.1 ~129m) was discovered at 1553 UT on 30 June by the Siding Spring Survey (SSS), which observed it at June 30.66-73p5 and 30.82-83p4. The discovery was confirmed by Tiki Obs. (July 1.59-60p2).

MPEC 2008-N05 - "15:16 UT" - 2008 MU1

• K08M01U   2008 MU1 (i=39.6°, H=19.4 ~446m) was discovered at 1630 UT on 30 June by SSS, which observed it at June 30.69-70p2 and 30.74-79p7. The discovery was confirmed by Mt. John Obs. (June 30.74-75p3) and Tiki Obs. (July 1.48-50p2).

MPEC 2008-N04 - "14:14 UT" - 2008 MR1

• K08M01R   2008 MR1 (Q=6.498 AU, H=17.8 ~933m) was discovered at 0917 UT on 30 June by LINEAR, which observed it at June 30.39-43p4. The discovery was confirmed by Farpoint Obs. (July 1.34p3) and Magdalena Ridge Obs. (MRO) (July 1.35-37p4).

MPEC 2008-N03 - "14:11 UT" - 2008 MQ1

• K08M01Q   2008 MQ1 (small asteroid, Earth MOID=8.3 LD, H=24.2 ~49m) was discovered at 0740 UT on 30 June by LINEAR, which observed it at June 30.32-36p5. The discovery was confirmed by Great Shefford Obs. (July 1.05p1), Farpoint Obs. (July 1.19-21p5), Cordell-Lorenz Obs. (July 1.26-31p5), the Catalina Sky Survey (CSS) (July 1.27-28p4), MRO (July 1.32p3), Grasslands Obs. (July 1.35p2), and Jim Young via Table Mtn. Obs. (July 1.44-45p4). This object is now within ten lunar distances (LD) of Earth, reaching 8.4 LD on 25 June.

<< DOU on 1 July '08 >>  MPEC 2008-N02 - "06:06 UT" - Daily Orbit Update

• Observations of recently (no longer) risk-listed objects
• K08K06D   2008 KD6 (arc=33 days, H=19.6 ~407m) from Naef Obs. (June 30.89-93p3) and Mirasteilas Obs. (June 30.95-97p2)
• Observations of other objects
• K08M01P   2008 MP1 (arc=1 day, H=21.6 ~162m) from Farpoint Obs. (July 1.19p2)
• K08K12B   2008 KB12 (Q=4.405 AU, arc=31 days, H=21.5 ~170m) from Mt. John Obs. (June 30.43-44p5)
• K08K00P   2008 KP (i=59.9°, q=0.231 AU, arc=34 days, H=18.9 ~562m) from Mt. John Obs. (June 30.38-39p5)
• K08J35T   2008 JT35 (Q=4.062 AU, arc=23 days, H=21.2 ~195m) from Urseanu Obs. (June 30.88-89p5) and Great Shefford Obs. (June 30.97p3)
• K08J14Q   2008 JQ14 (arc=57 days, H=19.3 ~467m) from Great Shefford Obs. (June 30.00-01p3)
• K07X25F   2007 XF25 (arc=198 days, H=21.4 ~178m) from Mt. John Obs. (June 30.32-33p4)
• K07W05B   2007 WB5 (arc=2 opp, H=19.0 ~537m) from Mt. John Obs. (June 30.69-70p3)
• K06SL7Z   2006 SZ217 (arc=3 opp, H=17.5 ~1.07 km) from Naef Obs. (June 30.90-94p3)
• K06M12D   2006 MD12 (q=0.331 AU, arc=2 opp, H=19.3 ~467m) from Mt. John Obs. (June 30.29-30p3)
• K05S71E   2005 SE71 (arc=2 opp, H=18.2 ~776m) from SSS (June 30.43-45p4)
• K01XQ6W   2001 XW266 (arc=3 opp, H=19.4 ~446m) from LINEAR (June 30.23-26p4)
• F4631   154631 2003 WO25 from SSS (June 30.63-68p4)
• D6818   136818 Selqet (1997 MW1) from Mirasteilas Obs. (June 30.99-01p3)
• 87311   87311 2000 QJ1 from Naef Obs. (June 30.96-01p3)
• 65996   65996 1998 MX5 from Mirasteilas Obs. (July 1.03-05p3)
• 54789   54789 2001 MZ7 from LINEAR (June 30.28-30p3)
• 03288   3288 Seleucus (1982 DV) from LINEAR (June 30.17-21p5)
• 01980   1980 Tezcatlipoca (1950 LA) from SSS (June 30.46-48p3)

MPEC 2008-N01 - "04:34 UT" - 2008 MP1

• K08M01P   2008 MP1 (Earth MOID=0.7 LD, H=21.6 ~162m) was discovered at 0601 UT on 30 June by the Spacewatch 0.9m telescope, which observed it at June 30.25-27p3. The discovery was confirmed by Mt. John Obs. (June 30.42p3), Alter Satzberg Obs. (June 30.85-86p3), Guidestar Obs. (June 30.89-90p3), Great Shefford Obs. (June 30.92-93p3), Golden Hill Obs. (June 30.94-97p6), Libbiano Obs. (June 30.94-97p3), CEAMIG-REA (July 1.04p3), and Powell Obs. (July 1.12-13p5).

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Observers  on 1 July '08

A total of 21 observing facilities appear in today's MPECs.

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Impact Risk Monitoring  on 1 July '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 1 July '08

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