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Contents  on 3 June '10

• IAU Minor Planet Center
  • NEOCP Activity -- 15 listings: 9 new, 6 updated
  • New MPECs -- two MPECs
• Observers -- eleven observing facilities
• Impact Risk Monitoring -- one object
• Chronology

Resources:

• Consolidated Risk Tables - the CRT page
    Of 325 risk-listed objects, 31 have had news in the last month. Updated at 1440 UTC.
• Earth's Busy Neighborhood Traffic Report
    Two objects are known to be within ten LD of Earth today. Updated at 1628 UTC.
• 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 3 June '10

The MPC's NEO Confirmation Page has 15 listings: 9 new, 6 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had nine new and six updated listings. Of these, six were "one nighters." So far The Tracking News has counted a total of sixteen listings on the NEOCP at some point today.

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 3 June '10

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been two MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

• MPEC 2010-L10 time-stamped "06:08 UT" - Daily Orbit Update - see below
• MPEC 2010-L11 time-stamped "20:25 UT" - 2010 LF

MPEC 2010-L11 - "20:25 UT" - 2010 LF

• K10L00F   2010 LF (small asteroid, H=23.8 ~59m) was discovered at 0709 UT on 2 June by the Catalina Sky Survey (CSS), which observed it at June 2.30-34p7. The discovery was confirmed by Great Shefford Obs. (June 2.91-93p3), Sandlot Obs. (June 3.22-23p3), Sabino Canyon Obs. (June 3.23-24p3), Tenagra II Obs. (June 3.37p3), Tzec Maun Obs. Mayhill (June 3.38-40p4), and Kevin Hills via RAS Obs. Moorook (June 3.55p3).

<< DOU on 3 June '10 >>  MPEC 2010-L10 - "06:08 UT" - Daily Orbit Update

• Observations of risk-listed objects
• K10K10R   2010 KR10 (arc=10 days, H=19.4 ~446m) from Richard Miles via Faulkes Telescope North (May 25.56p6)
• Observations of recently (no longer) risk-listed objects
• K10K00Q   2010 KQ (small asteroid, arc=17 days, H=29.6 ~4m) from Miles/Faulkes North (June 2.58p6)
• K10J88E   2010 JE88 (arc=19 days, H=21.5 ~170m) from Astronomical Research Obs. Westfield (June 2.10-12p3)
• K10J33L   2010 JL33 (Q=4.631 AU, arc=27 days, H=17.7 ~977m) from ARO Westfield (June 2.13-14p3)
• Observations of small asteroids (H>22.0)
• K10K10P   2010 KP10 (arc=13 days, H=23.4 ~71m) from the Spacewatch 1.8m telescope (June 2.35-37p3)
• K10J71O   2010 JO71 (arc=17 days, H=23.9 ~56m) from Miles/Faulkes North (May 25.56-57p2)
• Observations of almost-small asteroids (21.7<H<=22.0)
• K10K00D   2010 KD (arc=18 days, H=21.9 ~141m) from Great Shefford Obs. (June 2.97-99p3)
• Observations of other objects
• K10K61B   2010 KB61 (i=44.5°, arc=6 days, H=20.6 ~257m) from Spacewatch 1.8m (June 2.24-27p6)
• K10JF3V   2010 JV153 (arc=27 days, H=20.0 ~339m) from Spacewatch 1.8m (June 2.32-34p3)
• K10J87G   2010 JG87 (q=0.145 AU, Q=5.406 AU, arc=22 days, H=19.2 ~490m) from Great Shefford Obs. (June 3.00-02p3)
• K10J41K   2010 JK41 (Q=4.301 AU, arc=23 days, H=20.1 ~323m) from ARO Westfield (June 2.08-09p4)
• K10J00F   2010 JF (i=43.8°, arc=29 days, H=19.3 ~467m) from ARO Westfield (June 2.16-19p3)
• K10J00E   2010 JE (Q=4.607 AU, arc=30 days, H=20.1 ~323m) from ARO Westfield (June 2.12-14p3) and Spacewatch 1.8m (June 2.23p3 at V=22.2)
• K10G07T   2010 GT7 (Q=4.569 AU, arc=56 days, H=20.2 ~309m) from ARO Westfield (June 2.16-20p3 at V=21.9-22.1)
• K10CH1J   2010 CJ171 (arc=108 days, H=21.0 ~214m) from CSS (June 2.32-34p4)
• K09K05D   2009 KD5 (arc=3 opp, H=18.4 ~708m) from Doc Greiner Research Obs. (DGRO) (June 1.15-16p4)
• K07J20Z   2007 JZ20 (i=40.5°, arc=3 opp, H=18.5 ~676m) from CSS (June 2.32-34p4)
• J99M00N   1999 MN (q=0.225 AU, arc=3 opp, H=21.4 ~178m) from Great Shefford Obs. (June 3.09p3)
• F2671   152671 1998 HL3 from CSS (June 2.15-17p3)
• 66400   66400 1999 LT7 from CSS (June 2.25-29p4)
• 52750   52750 1998 KK17 from CSS (June 2.30-32p4)
• 20790   20790 2000 SE45 from CSS (June 1.15-17p4)
• 06050   6050 Miwablock (1992 AE) from CSS (June 2.24-26p4)

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Observers  on 3 June '10

Eleven observing facilities appear in today's MPECs.

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Impact Risk Monitoring  on 3 June '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 3 June '10

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