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Contents  on 2 September '08

• Radar Astrometry -- one object
• IAU Minor Planet Center
  • NEOCP Activity -- seven listings: 1 new, 6 updated
  • New MPECs -- five MPECs
• Observers -- 22 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 | Radar | NEOCP | MPECs | Observers | Risks | Chronology | Index   >>

Radar Astrometry  on 2 September '08

Radar observation of one object

The JPL Solar System Dynamics Group Radar Astrometry database has added the following small-body radar observing work:

Data addition noted at 2001 UTC when the database was dated 2 Sept.

• 35107 1991 VH from Arecibo (July 29.93 range, 29.96 range & 29.97 range) - see links

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

NEOCP Activity  on 2 September '08

The MPC's NEO Confirmation Page has 7 listings: 1 new, 6 updated

When last checked at 2357 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had one new and six updated listings. Of these, six were "one nighters." So far The Tracking News has counted a total of eleven objects listed on the NEOCP at some point today.

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

New MPECs  on 2 September '08

Minor Planet Electronic Circulars

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

• MPEC 2008-R10 time-stamped "06:07 UT" - Daily Orbit Update - see below
• MPEC 2008-R11 time-stamped "14:18 UT" - Comet P/2008 O3 (Boattini) - see below
• MPEC 2008-R12 time-stamped "18:10 UT" - 2007 BA - see below
• MPEC 2008-R13 time-stamped "21:31 UT" - 2008 RC - see below
• MPEC 2008-R14 time-stamped "21:54 UT" - 1999 RJ27

MPEC 2008-R14 - "21:54 UT" - 1999 RJ27

• J99R27J   1999 RJ27 (H=19.5 ~426m) from the Spacewatch 0.9m telescope (Sept. 2.27-31p3) and Terskol Obs. (Sept. 2.88-89p4)

MPEC 2008-R13 - "21:31 UT" - 2008 RC

• K08R00C   2008 RC (H=18.0 ~851m) was discovered at 2336 UT on 1 Sept. by La Sagra Obs., which observed it at Sept. 1.98-02p3. The discovery was confirmed by Prairie Grass Obs. (Sept. 2.28-29p4), Sandlot Obs. (Sept. 2.34-35p3), Jim Young via Table Mtn. Obs. (Sept. 2.35-37p4), E. Guido via RAS Obs. Mayhill (Sept. 2.47-48p3), Hadano Obs. (Sept. 2.61-63p3), Terskol Obs. (Sept. 2.69-70p3), Farra d'Isonzo Obs. (Sept. 2.81-84p3), Modra Obs. (Sept. 2.82p2), CAST Obs. (Sept. 2.83-85p2), and Carmelita Obs. (Sept. 2.85-86p3).

MPEC 2008-R12 - "18:10 UT" - 2007 BA

• K07B00A   2007 BA (H=18.8 ~589m) from Astronomical Research Obs. (ARO) (Aug. 31.21-25p3, Sept. 1.30p1 & 2.24-28p2)

MPEC 2008-R11 - "14:18 UT" - Comet P/2008 O3 (Boattini)

• PK08O030   P/2008 O3 (Boattini) (Centaur, q=2.499 AU, Q=14.018 AU, TP=2008 June 3.3113 TT) from Table Mtn. Obs. (Aug. 31.47-50p4 & Sept. 2.47-52p5)

<< DOU on 2 Sept. '08 >>  MPEC 2008-R10 - "06:07 UT" - Daily Orbit Update

• Observations of risk-listed objects
• K08O00O   2008 OO (arc=36 days, H=19.8 ~371m) from ARO (Aug. 31.15-16p2)
• Observations of recently (no longer) risk-listed objects
• K08Q11T   2008 QT11 (small asteroid, arc=4 days, H=22.5 ~107m) from the Siding Spring Survey (SSS) (Aug. 31.81p1)
• K08Q03T   2008 QT3 (arc=7 days, H=18.3 ~741m) from ARO (Sept. 1.22-23p3)
• K08Q01C   2008 QC1 (small asteroid, Q=4.276 AU, arc=9 days, H=24.2 ~49m) from SSS (Sept. 1.66p2)
• K08P03H   2008 PH3 (arc=29 days, H=21.7 ~155m) from SSS (Sept. 1.67p2)
• K08O08P   2008 OP8 (arc=33 days, H=19.7 ~389m) from ARO (Sept. 1.16-17p3)
• K08O07S   2008 OS7 (arc=33 days, H=20.5 ~269m) from ARO (Sept. 1.09-12p3)
• Observations of small asteroids (H>22.0)
• K07Y56M   2007 YM56 (arc=2 opp, H=22.4 ~112m) from David Tholen's team on Mauna Kea (Aug. 13.49p2 at R=22.4-5)
• Observations of other objects
• K08Q11V   2008 QV11 (arc=6 days, H=21.2 ~195m) from SSS (Sept. 1.51p2)
• K08Q01D   2008 QD1 (arc=9 days, H=18.9 ~562m) from SSS (Aug. 31.81p1 & Sept. 1.64-65p4)
• K08Q00Z   2008 QZ (arc=11 days, H=20.5 ~269m) from KLENOT (Sept. 2.02p6)
• K08Q00C   2008 QC (arc=13 days, H=20.6 ~257m) from SSS (Sept. 1.68p4)
• K08P03L   2008 PL3 (arc=27 days, H=19.4 ~446m) from Kiev Comet Station (Aug. 27.96-00p8)
• K08O08X   2008 OX8 (arc=33 days, H=21.6 ~162m) from ARO (Sept. 1.07-08p3) and SSS (Sept. 1.50p2)
• K08N00U   2008 NU (Q=4.202 AU, arc=62 days, H=17.6 ~1.02 km) from ARO (Sept. 1.28-29p4)
• K08L16N   2008 LN16 (arc=83 days, H=19.9 ~355m) from SSS (Sept. 1.61-62p3)
• K08J35T   2008 JT35 (Q=4.082 AU, arc=119 days, H=21.3 ~186m) from ARO (Sept. 1.18-21p3)
• K08J30Z   2008 JZ30 (arc=110 days, H=18.5 ~676m) from ARO (Sept. 1.25-27p3)
• K07Y00Z   2007 YZ (arc=27 days, H=19.6 ~407m) from LONEOS (2007 Dec. 31.25-31p4)
• K07S06P   2007 SP6 (arc=2 opp, H=18.2 ~776m) from LONEOS (2007 Dec. 31.25-31p4)
• K07F01K   2007 FK1 (arc=150 days, H=20.2 ~309m) from LONEOS (2007 June 20.36-41p4)
• K03U20C   2003 UC20 (arc=4 opp, H=18.1 ~812m) from LONEOS (2003 Dec. 5.32-35p4)
• K03G00J   2003 GJ (Q=4.039 AU, arc=57 days, H=19.7 ~389m) from LONEOS (2003 April 20.23-29p4)
• K02Q06Y   2002 QY6 (q=0.246 AU, arc=4 opp, H=19.6 ~407m) from ARO (Sept. 1.30-31p3)
• K01R17T   2001 RT17 (q=0.264 AU, arc=5 opp, H=18.0 ~851m) from SSS (Sept. 1.52-55p4)
• H0891   170891 2004 TY16 from LONEOS (2007 Dec. 31.25-31p4)
• G4400   164400 2005 GN59 from Thompsonville Obs. (Sept. 2.11p6)
• F9518   159518 2001 FF7 from LONEOS (2004 April 10.19-25p4)
• D7805   137805 1999 YK5 from LONEOS (2003 Dec. 5.48-53p4)
• 90403   90403 2003 YE45 from Timberlake Obs. (Sept. 2.06-10p3)
• 88188   88188 2000 XH44 from LONEOS (2003 Dec. 5.41-47p4)
• 66272   66272 1999 JW6 from LONEOS (2007 Dec. 31.14-22p4)
• 65690   65690 1991 DG from Kiev Comet Station (Aug. 27.87-89p5)
• 65679   65679 1989 UQ from LONEOS (2003 Sept. 11.42-46p4)
• 39572   39572 1993 DQ1 from Thompsonville Obs. (Sept. 2.09-10p6)
• 21374   21374 1997 WS22 from LONEOS (2007 Dec. 31.15-22p4)
• 08567   8567 1996 HW1 from Skylive Obs. (Aug. 31.90p2 & 31.98-99p2) and Thompsonville Obs. (Sept. 2.11-12p6)
• 06063   6063 Jason (1984 KB) from LONEOS (2003 Dec. 5.07-13p4)
• 06050   6050 Miwablock (1992 AE) from LONEOS (2003 April 20.22-28p4)
• 04487   4487 Pocahontas (1987 UA) from LONEOS (2003 Dec. 5.36-39p4)
• 04179   4179 Toutatis (1989 AC) from Thompsonville Obs. (Sept. 2.10p6)
• 03102   3102 Krok (1981 QA) from LONEOS (2003 Dec. 5.08-14p4)

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Observers  on 2 September '08

A total of 22 observing facilities appear in today's MPECs.

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

Impact Risk Monitoring  on 2 September '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 2 September '08

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