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Contents  on 26 October '07

• IAU Minor Planet Center
  • NEOCP Activity -- four listings: 4 updated
  • New MPECs -- seven MPECs
  • Observers -- four observing facilities
• Impact Risk Monitoring -- one object reported
• Chronology

Resources:

• Consolidated Risk Tables - CRT page
• Old & new CRT Archive
• Ephemerides for risk-rated objects
• Old News Archive & Small Objects Archive

  The latest news: framed access (best),  RSS news feed (flags updates), or redirection - Note: A/CC has a main Web site and a backup site, which now has its own backup 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.

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NEOCP Activity  on 26 October '07

The MPC's NEO Confirmation Page has 4 listings: 4 updated

When last checked at 2354 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had four updated listings. Of these, one was a "one nighter." So far The Tracking News has counted a total of five 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 26 October '07

Minor Planet Electronic Circulars

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

• MPEC 2007-U72 time-stamped "06:07 UT" - Daily Orbit Update - see below
• MPEC 2007-U73 time-stamped "15:05 UT" - Observable Comets - see below
• MPEC 2007-U74 time-stamped "15:33 UT" - Distant Minor Planets - see below
• MPEC 2007-U75 time-stamped "15:38 UT" - Atens and Apollos - see below
• MPEC 2007-U76 time-stamped "15:38 UT" - Amors - see below
• MPEC 2007-U77 time-stamped "15:38 UT" - Unusual Minor Planets - see below
• MPEC 2007-U78 time-stamped "15:38 UT" - PHAs

MPEC 2007-U78 - "15:38 UT" - PHAs

MPEC 2007-U77 - "15:38 UT" - Unusual Minor Planets

MPEC 2007-U76 - "15:38 UT" - Amors

MPEC 2007-U75 - "15:38 UT" - Atens and Apollos

MPEC 2007-U74 - "15:33 UT" - Distant Minor Planets

MPEC 2007-U73 - "15:05 UT" - Observable Comets

<< DOU on 26 Oct. '07 >>  MPEC 2007-U72 - "06:07 UT" - Daily Orbit Update

• Observations of risk-listed objects
• K07U01Y   2007 UY1 (small asteroid, arc=7 days, H=23.0 ~85m) from the Mt. Lemmon Survey (MLS) (Oct. 25.16-19p4)
• Observations of other objects
• K07T15G   2007 TG15 (arc=15 days, H=19.7 ~389m) from New Millennium Obs. (Oct. 20.85-88p9)
• K07S11V   2007 SV11 (arc=28 days, H=18.0 ~851m) from Desert Moon Obs. (Oct. 25.09-12p3) and MLS (Oct. 25.13-15p4)
• K07S11E   2007 SE11 (i=48.3°, arc=35 days, H=17.7 ~977m) from Greiner Research Obs. (Oct. 25.32-34p8)
• K07S06P   2007 SP6 (arc=34 days, H=18.1 ~812m) from Greiner Research Obs. (Oct. 25.34-35p6)
• K07P11U   2007 PU11 (Q=4.384 AU, arc=3 opp, H=16.3 ~1.86 km) from Greiner Research Obs. (Oct. 25.17-18p19)
• K07P08A   2007 PA8 (Q=4.701 AU, arc=77 days, H=16.0 ~2.14 km, q=0.958 AU) from Desert Moon Obs. (Oct. 25.16p1)
• K04RP2D   2004 RD252 (arc=2 opp, H=19.1 ~513m) from MLS (Oct. 25.25-27p4)
• K03H11W   2003 HW11 (arc=4 opp, H=17.2 ~1.23 km) from MLS (Oct. 25.48-51p4)
• D7084   137084 1998 XS16 from New Millennium Obs. (Oct. 20.74-80p10)

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Observers  on 26 October '07

Four observing facilities appear in today's MPEC.

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

Impact Risk Monitoring  on 26 October '07

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 26 October '07

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