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Contents  on 4 November '08

• IAU Minor Planet Center
  • NEOCP Activity -- five listings: 4 new, 1 updated
  • New MPECs -- four MPECs
• Observers -- sixteen observing facilities
• Impact Risk Monitoring -- six objects
• 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 4 November '08

The MPC's NEO Confirmation Page has 5 listings: 4 new, 1 updated

When last checked at 2306 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had four new and one updated listings. All of these were "one nighters." So far The Tracking News has counted a total of six 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 4 November '08

Minor Planet Electronic Circulars

As of last check at 2306 UTC, there have been four MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

• MPEC 2008-V21 time-stamped "04:10 UT" - 2008 UK199 - see below
• MPEC 2008-V22 time-stamped "04:12 UT" - 2008 VV - see below
• MPEC 2008-V23 time-stamped "07:16 UT" - Daily Orbit Update - see below
• MPEC 2008-V24 time-stamped "13:19 UT" - 2008 VB1

MPEC 2008-V24 - "13:19 UT" - 2008 VB1

• K08V01B   2008 VB1 (risk-listed, H=19.6 ~407m) was discovered at 0842 UT on 3 Nov. by the Spacewatch 0.9m telescope, which observed it at Nov. 3.36-40p3. The discovery was confirmed by the Spacewatch 1.8m telescope (Nov. 3.46-47p3 & 4.26p3) and Magdalena Ridge Obs. (MRO) (Nov. 4.30-32p4).

<< DOU on 4 Nov. '08 >>  MPEC 2008-V23 - "07:16 UT" - Daily Orbit Update

• Observations of risk-listed objects
• K08V00H   2008 VH (arc=1 day, H=20.0 ~339m) from Astronomical Research Obs. (ARO) (Nov. 3.23-26p3 at V=21.6-22.1)
• K08V00E   2008 VE (almost small, Q=4.528 AU, arc=2 days, H=21.9 ~141m) from ARO (Nov. 3.25-26p3)
• Observations of recently (no longer) risk-listed objects
• K08U95B   2008 UB95 (small asteroid, arc=5 days, H=24.6 ~41m) from ARO (Nov. 3.07p2)
• Observations of small asteroids (H>22.0)
• K08V00K   2008 VK (arc=1 day, H=23.4 ~71m) from ARO (Nov. 3.22p3)
• K08S85D   2008 SD85 (arc=24 days, H=22.8 ~93m) from David Tholen's team on Mauna Kea (Oct. 22.33-34p3)
• K06U00P   2006 UP (arc=3 opp, H=22.9 ~89m) from Spacewatch 0.9m (Nov. 3.37-40p3)
• Observations of other objects
• K08V00N   2008 VN (Q=4.538 AU, arc=2 days, H=16.6 ~1.62 km) from Spacewatch 1.8m (Nov. 3.38-39p3)
• K08V00F   2008 VF (arc=2 days, H=19.2 ~490m) from ARO (Nov. 3.30-31p3)
• K08UK1Z   2008 UZ201 (arc=9 days, H=21.7 ~155m) from ARO (Nov. 3.23-24p3)
• K08U04S   2008 US4 (arc=28 days, H=20.7 ~245m) from Thompsonville Obs. (Nov. 3.22-23p6)
• K08S07P   2008 SP7 (Q=4.200 AU, arc=41 days, H=19.0 ~537m) from Drebach Obs. (Nov. 3.84p3)
• K08S01Q   2008 SQ1 (Q=4.682 AU, arc=2 opp, H=18.4 ~708m) from Thompsonville Obs. (Nov. 3.23-24p6) and Drebach Obs. (Nov. 3.80-81p5)
• K08S01N   2008 SN1 (Q=4.025 AU, arc=44 days, H=19.6 ~407m) from Drebach Obs. (Nov. 3.87-88p4)
• K08S00Q   2008 SQ (arc=43 days, H=19.5 ~426m) from Ametlla del Valles Obs. (Nov. 3.02-03p3) and Drebach Obs. (Nov. 3.82-83p3)
• K08S00E   2008 SE (arc=44 days, H=19.4 ~446m) from Thompsonville Obs. (Nov. 3.25-26p6) and Drebach Obs. (Nov. 3.86-87p6)
• K08R98G   2008 RG98 (arc=55 days, H=17.1 ~1.29 km) from LINEAR (Nov. 3.15-18p4)
• K08R26S   2008 RS26 (Q=4.801 AU, arc=62 days, H=17.9 ~891m) from the Siding Spring Survey (SSS) (Nov. 3.55p1)
• K08R00V   2008 RV (arc=62 days, H=21.7 ~155m) from Spacewatch 1.8m (Nov. 3.30-31p3)
• K08M01R   2008 MR1 (arc=3 opp, H=18.4 ~708m) from Drebach Obs. (Nov. 3.83-84p4)
• K06W29Q   2006 WQ29 (arc=3 opp, H=18.0 ~851m) from the Mt. Lemmon Survey (MLS) (Nov. 3.36-38p4)
• K06G00Z   2006 GZ (arc=2 opp, H=19.4 ~446m) from Ametlla del Valles Obs. (Nov. 3.12-16p3)
• K05T51Z   2005 TZ51 (arc=3 opp, H=17.9 ~891m) from Drebach Obs. (Nov. 3.79-80p5)
• K04T11U   2004 TU11 (arc=2 opp, H=21.1 ~204m) from MLS (Nov. 3.36-38p3)
• K02W11P   2002 WP11 (arc=3 opp, H=18.1 ~812m) from LINEAR (Nov. 3.14-16p3)
• K01V76C   2001 VC76 (arc=2 opp, H=19.7 ~389m) from Spacewatch 0.9m (Nov. 3.37-40p3)
• K01U16Z   2001 UZ16 (arc=3 opp, H=19.5 ~426m) from Ametlla del Valles Obs. (Nov. 2.94-95p3)
• K01U04Y   2001 UY4 (q=0.309 AU, arc=5 opp, H=18.3 ~741m) from Thompsonville Obs. (Nov. 3.27-28p6)
• K01T01W   2001 TW1 (arc=5 opp, H=19.2 ~490m) from Drebach Obs. (Nov. 3.81p5)
• J0135   190135 2005 QE30 from LINEAR (Nov. 3.07-12p5)
• G2117   162117 1998 SD15 from SSS (Nov. 3.69-72p4)
• F9923   159923 2004 YJ32 from Spacewatch 0.9m (Nov. 3.47-50p3)
• F5140   155140 2005 UD from LINEAR (Nov. 3.19-24p4)
• 52689   52689 1998 FF2 from MLS (Nov. 3.22-24p4)
• 11500   11500 1989 UR from LINEAR (Nov. 3.13-18p5)
• 08567   8567 1996 HW1 from Thompsonville Obs. (Nov. 3.28-30p6)
• 05143   5143 Heracles (1991 VL) from LINEAR (Nov. 3.18-23p3)
• 04183   4183 Cuno (1959 LM) from LINEAR (Nov. 3.19-24p5)
• 01620   1620 Geographos (1951 RA) from El Maestrat Obs. (Nov. 2.76-78p3)

MPEC 2008-V22 - "04:12 UT" - 2008 VV

• K08V00V   2008 VV (Q=4.347 AU, H=20.3 ~295m) was discovered at 0557 UT on 3 Nov. by MLS, which observed it at Nov. 3.25-28p4 and 3.33-34p3. The discovery was confirmed by Drebach Obs. (Nov. 3.90p3).

MPEC 2008-V21 - "04:10 UT" - 2008 UK199

• K08UJ9K   2008 UK199 (i=58.7°, H=19.5 ~426m) was discovered at 0847 UT on 31 Oct. by the Catalina Sky Survey (CSS), which observed it at Oct. 31.37-39p4 and 31.45p4. The discovery was confirmed by MRO (Oct. 31.50p5), Golden Hill Obs. (Oct. 31.96-01p5), Great Shefford Obs. (Nov. 1.03-04p3), ARO (Nov. 1.25-26p3), Sabino Canyon Obs. (Nov. 1.25-27p3), and LINEAR (Nov. 1.31-36p5 & 2.26-31p5).

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Observers  on 4 November '08

Sixteen observing facilities appear in today's MPECs.

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Impact Risk Monitoring  on 4 November '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 4 November '08

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