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The NASA/JPL NEO Program Office reported very early today (still the 9th local time) that 2007 WD5's impact probability had dropped to "1 in 10,000 odds, effectively ruling out the possible collision with Mars." The report includes observing credits, such as the team in Hawaii that provided this image of the distant tiny asteroid (Tholen, Bernardi, Micheli with support from the NSF). Also see more news links yesterday.

Contents  on 10 January '08

• IAU Minor Planet Center
  • NEOCP Activity -- nine listings: 3 new, 6 updated
  • New MPECs -- four MPECs
  • Observers -- seventeen observing facilities
• Impact Risk Monitoring -- nothing to report
• 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 this year 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 10 January '08

The MPC's NEO Confirmation Page has 9 listings: 3 new, 6 updated

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

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

New MPECs  on 10 January '08

Minor Planet Electronic Circulars

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

• MPEC 2008-A38 time-stamped "07:08 UT" - Daily Orbit Update - see below
• MPEC 2008-A39 time-stamped "20:45 UT" - 2008 AF3 - see below
• MPEC 2008-A40 time-stamped "23:31 UT" - Comets C/2007 S5, 2007 S6, 2007 S7, 2007 S8, 2007 S9, 2007 S10 (SOHO) - see below
• MPEC 2008-A41 time-stamped "23:50 UT" - Comets C/2007 T7, 2007 T8, 2007 T9 (SOHO)

MPEC 2008-A41 - "23:50 UT" - Comets C/2007 T7, 2007 T8, 2007 T9 (SOHO)

• CK07T090   C/2007 T9 from the LASCO Coronagraph 3 on the Solar & Heliospheric Obs. (SOHO) (2007 Oct. 10.82-93p12 & 2007 Oct. 10.97-24p26) and the LASCO Coronagraph 2 on the Solar & Heliospheric Obs. (SOHO) (2007 Oct. 11.35-41p10 & 2007 Oct. 11.46p2)
• CK07T080   C/2007 T8 from SOHO C3 (2007 Oct. 10.47p2 & 2007 Oct. 10.57-86p28) and SOHO C2 (2007 Oct. 10.90-98p12)
• CK07T070   C/2007 T7 from SOHO C3 (2007 Oct. 4.70p2, 2007 Oct. 4.74-85p10, 2007 Oct. 4.89-93p6 & 2007 Oct. 4.97-18p20) and SOHO C2 (2007 Oct. 5.17-25p14)

MPEC 2008-A40 - "23:31 UT" - Comets C/2007 S5, 2007 S6, 2007 S7, 2007 S8, 2007 S9, 2007 S10 (SOHO)

• CK07S100   C/2007 S10 from SOHO C3 (2007 Sept. 30.01-03p4, 2007 Sept. 30.07p2, 2007 Sept. 30.14-18p6, 2007 Sept. 30.22-28p8, 2007 Sept. 30.32-53p22 & 2007 Sept. 30.57-65p10) and SOHO C2 (2007 Sept. 30.65-73p14)
• CK07S090   C/2007 S9 from SOHO C3 (2007 Sept. 29.47-53p8, 2007 Sept. 29.57-74p16 & 2007 Sept. 29.78-80p4) and SOHO C2 (2007 Sept. 29.84-85p4)
• CK07S080   C/2007 S8 from SOHO C3 (2007 Sept. 29.26-36p8 & 2007 Sept. 29.40-53p14) and SOHO C2 (2007 Sept. 29.60-66p10)
• CK07S070   C/2007 S7 from SOHO C2 (2007 Sept. 28.70-79p14)
• CK07S060   C/2007 S6 from SOHO C3 (2007 Sept. 28.26-49p20) and SOHO C2 (2007 Sept. 28.50-55p8)
• CK07S050   C/2007 S5 from SOHO C3 (2007 Sept. 26.65-93p26, 2007 Sept. 26.97-03p8, 2007 Sept. 27.07-28p22, 2007 Sept. 27.32-78p44 & 2007 Sept. 27.86-89p4) and SOHO C2 (2007 Sept. 27.85-94p12 & 2007 Sept. 27.98-00p4)

MPEC 2008-A39 - "20:45 UT" - 2008 AF3

• K08A03F   2008 AF3 (small asteroid, Earth MOID=1.3 LD, H=26.5 ~17m) was discovered at 0525 UT on 10 Jan. by the Catalina Sky Survey (CSS), which observed it at Jan. 10.23-25p4, 10.30p4, and 10.36p4. The discovery was confirmed by Gnosca Obs. (Jan. 10.76-77p3) and Eschenberg Obs. (Jan. 10.79-80p5). This object is now within ten lunar distances (LD) of Earth, reaching 1.0 LD on 13 Jan.

<< DOU on 10 Jan. '08 >>  MPEC 2008-A38 - "07:08 UT" - Daily Orbit Update

• Observations of recently (no longer) risk-listed objects
• K07Y00Z   2007 YZ (arc=23 days, H=19.7 ~389m) from Brainerd Obs. (Jan. 9.01-03p6) and Petit Jean Mtn. South Obs. (PJMSO) (Jan. 9.31-32p9 & 10.08p7)
• Observations of small asteroids (H>22.0)
• K07W05D   2007 WD5 (Q=4.077 AU, arc=62 days, H=24.3 ~47m) from David Tholen's team on Mauna Kea (Jan. 9.37p1 at R=24.4)
• K07V03H   2007 VH3 (arc=68 days, H=22.7 ~98m) from PJMSO (Jan. 9.28-29p3)
• Observations of other objects
• K08A01X   2008 AX1 (arc=1 day, H=21.2 ~195m) from the Siding Spring Survey (SSS) (Jan. 9.65p1)
• K08A01G   2008 AG1 (arc=3 days, H=21.0 ~214m) from SSS (Jan. 9.69p1 & 9.75p1)
• K08A00D   2008 AD (arc=7 days, H=20.1 ~323m) from Stia Obs. (Jan. 8.72-73p4)
• K07Y01F   2007 YF1 (Q=4.002 AU, arc=24 days, H=18.7 ~616m) from PJMSO (Jan. 9.38-39p6)
• K07W55F   2007 WF55 (arc=39 days, H=19.1 ~513m) from PJMSO (Jan. 9.26-27p6)
• K07VI3R   2007 VR183 (Q=4.353 AU, arc=116 days, H=17.4 ~1.12 km) from Stia Obs. (Jan. 8.75-76p4)
• K07U06S   2007 US6 (arc=3 opp, H=18.3 ~741m) from PJMSO (Jan. 10.06p6)
• K07S06P   2007 SP6 (arc=2 opp, H=18.2 ~776m) from PJMSO (Jan. 9.35-36p5)
• K07P11U   2007 PU11 (Q=4.384 AU, arc=3 opp, H=16.3 ~1.86 km) from Dresden Obs. (Jan. 8.92-93p3)
• K05X08K   2005 XK8 (arc=2 opp, H=19.8 ~371m) from PJMSO (Jan. 9.23p5)
• K05X01D   2005 XD1 (arc=2 opp, H=19.3 ~467m) from Schiaparelli Obs. (Jan. 8.02p5), Dresden Obs. (Jan. 8.87-88p5), Brainerd Obs. (Jan. 9.03-08p12), and PJMSO (Jan. 9.25p6 & 10.09p5)
• K05W56J   2005 WJ56 (arc=3 opp, H=18.1 ~812m) from Schiaparelli Obs. (Jan. 8.06-07p5), Brainerd Obs. (Jan. 9.05-06p5), Chante-Perdrix Obs. (Jan. 9.86-87p7), Farra d'Isonzo Obs. (Jan. 9.97-98p3), and PJMSO (Jan. 10.09-11p22)
• K05T45U   2005 TU45 (arc=3 opp, H=17.0 ~1.35 km) from PJMSO (Jan. 9.41-42p5 & 10.21p5)
• J93T02Q   1993 TQ2 (arc=2 opp, H=19.9 ~355m) from PJMSO (Jan. 9.32-34p5 & 10.19p5)
• H0903   170903 2004 WS2 from LINEAR (Jan. 9.13-19p5)
• D8947   138947 2001 BA40 from PJMSO (Jan. 9.29-30p5) and Inastars Obs. (Jan. 9.94-95p3)
• D6793   136793 1997 AQ18 from Farra d'Isonzo Obs. (Jan. 8.90-91p3) and PJMSO (Jan. 9.27-28p5)
• 90403   90403 2003 YE45 from Dresden Obs. (Jan. 8.89-91p5), LINEAR (Jan. 9.26-32p4), PJMSO (Jan. 9.30-31p5), and Inastars Obs. (Jan. 9.90p2)
• 68359   68359 2001 OZ13 from Engelhardt Obs. Zelenchukskaya Station (Jan. 8.94-98p10), LINEAR (Jan. 9.21-26p5), and PJMSO (Jan. 9.35p5)
• 68063   68063 2000 YJ66 from Purple Mtn. Obs. XuYi Station (Jan. 8.66-71p4) and LINEAR (Jan. 9.27-32p3)
• 35107   35107 1991 VH from LINEAR (Jan. 9.46-51p5)
• 09400   9400 1994 TW1 from LINEAR (Jan. 9.48-51p4)
• 05131   5131 1990 BG from PJMSO (Jan. 9.34p5)
• 04503   4503 Cleobulus (1989 WM) from LINEAR (Jan. 9.46-52p5)
• 04450   4450 Pan (1987 SY) from LINEAR (Jan. 9.34-39p5)

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Observers  on 10 January '08

Seventeen observing facilities appear in today's MPECs.

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

Impact Risk Monitoring  on 10 January '08

At last check (NEODyS and JPL at 2354 UTC) there was no risk monitoring news to report yet today. See the CRT for activity in the last month.

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

Chronology  on 10 January '08

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