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See 2010 in images, a simple collection from the closing year of pictorial news for small Solar-System bodies. A few examples, clockwise from upper left: A dustup on 596 Scheila, a flyby of 21 Lutetia, the passing of an original, Brian Marsden, the disruption of P/2010 A2 (LINEAR), finding bits of 2008 TC3, and bringing DSS-14 back into service. Credits and copyrights for one or more: Great Shefford, ESA, H-S CfA, NASA, SETI, and JPL (see the respective links for details).

Contents  on 31 December '10

• IAU Minor Planet Center
  • NEOCP Activity -- seven listings: 6 new, 1 updated
  • New MPECs -- one MPEC
• Observers -- five observers
• Impact Risk Monitoring -- one object
• Chronology

Resources:

• Consolidated Risk Tables - the CRT page
    Of 388 risk-listed objects, 350 have had news in the last 31 days. Updated at 2359 UTC on 31 Dec.
• Earth's Busy Neighborhood Traffic Report
    Two objects are known to be within ten LD of Earth today. Updated at 1815 UTC on 31 Dec.
• Ephemerides for risk-rated and nearby objects
• News image catalog
• 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 31 December '10

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

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had six new and one updated listings. Of these, five were "one nighters."

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object at Suno Observatory by Birtwhistle et al.

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

New MPECs  on 31 December '10

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there has been one MPEC posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

<< DOU on 31 Dec. '10 >>  MPEC 2010-Y39 - "07:10 UT" - Daily Orbit Update

• Observations of risk-listed objects
• K10X25C   2010 XC25 (arc=21 days, H=20.7 ~245m) from Schiaparelli Obs. (Dec. 29.18-19p3)
• Observations of recently (no longer) risk-listed objects
• K10Y00D   2010 YD (small asteroid, arc=4 days, H=26.6 ~16m) from Schiaparelli Obs. (Dec. 29.07-08p2)
• Observations of small asteroids (H>22.0)
• K10Y00S   2010 YS (arc=2 days, H=22.1 ~129m) from Verona Obs. (Dec. 30.99p4)
• K10Y00O   2010 YO (arc=3 days, H=24.6 ~41m) from Schiaparelli Obs. (Dec. 29.03-04p3)
• Observations of other objects
• K10RH9R   2010 RR179 (Q=4.254 AU, arc=118 days, H=21.2 ~195m) from Schiaparelli Obs. (Dec. 29.04-05p3)
• K10OA1C   2010 OC101 (arc=159 days, H=20.8 ~234m) from Schiaparelli Obs. (Dec. 29.11-13p3)
• K10J33L   2010 JL33 (Q=4.634 AU, arc=4 opp, H=17.6 ~1.02 km) from Verona Obs. (Dec. 27.86-87p4 & 30.99-00p4)
• K10B02L   2010 BL2 (i=60.1°, arc=2 opp, H=16.4 ~1.78 km) from WISE (Jan. 8.97p1, 9.23p1 & 9.36p1)
• K09WA6O   2009 WO106 (arc=54 days, H=19.2 ~490m) from WISE (Jan. 17.88p1, 18.01p1, 18.14p1, 18.47p1, 18.54p1, 18.61p1, 19.00p1 & 19.14p1)
• K08X00M   2008 XM (q=0.111 AU, arc=2 opp, H=19.9 ~355m) from WISE (Jan. 18.62p2)
• K06V14B   2006 VB14 (arc=3 opp, H=18.5 ~676m) from Tzec Maun Obs. Moorook (Dec. 30.55-57p2)
• K05C41F   2005 CF41 (arc=5 opp, H=18.5 ~676m) from Schiaparelli Obs. (Dec. 29.09-10p2)
• K00CA1R   2000 CR101 (arc=2 opp, H=20.1 ~323m) from Schiaparelli Obs. (Dec. 29.10-11p3)
• K00CA1O   2000 CO101 (arc=2 opp, H=19.1 ~513m) from WISE (Jan. 11.37p1)
• K00A06C   2000 AC6 (arc=4 opp, H=21.5 ~170m) from Wishing Star Obs. (Dec. 30.99-01p3)
• J99L07S   1999 LS7 (arc=6 opp, H=20.7 ~245m) from WISE (Jan. 15.77p1, 15.83p1, 15.90p1, 15.96p1, 16.03p1, 16.10p1 & 16.23p2)
• J98Y05W   1998 YW5 (arc=3 opp, H=19.9 ~355m) from WISE (Jan. 18.57p1, 18.63p1, 18.76p1, 18.83p1 & 18.90p1)
• J97X02S   1997 XS2 (Q=4.046 AU, arc=2 opp, H=19.4 ~446m) from Schiaparelli Obs. (Dec. 29.06-07p3)
• N0549   230549 2003 BH from WISE (Jan. 17.44p1, 17.51p1, 17.57p1, 17.64p1 & 17.77p1)
• N0420   230420 2002 PP6 from WISE (Jan. 16.64p1, 16.71p1 & 16.77p1)
• J8856   198856 2005 LR3 from Wishing Star Obs. (Dec. 30.96-97p3)
• G3023   163023 2001 XU1 from WISE (Jan. 10.19p1, 10.25p1, 10.32p1, 10.38p1 & 11.38p1)
• 96744   96744 1999 OW3 from Tzec Maun Obs. Moorook (Dec. 30.67p3)
• 20790   20790 2000 SE45 from WISE (Jan. 10.50p1)
• 03200   3200 Phaethon (1983 TB) from WISE (Jan. 7.26p1 & 7.39p1)

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Observers  on 31 December '10

Five observers appear in today's MPEC.

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Impact Risk Monitoring  on 31 December '10

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 31 December '10

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