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Contents  on 13 June '10

• IAU Minor Planet Center
  • NEOCP Activity -- seven listings: 1 new, 6 updated
  • New MPECs -- five MPECs
• Observers -- 20 observing facilities
• Impact Risk Monitoring -- three objects
• Chronology

Resources:

• Consolidated Risk Tables - the CRT page
    Of 323 risk-listed objects, 27 have had news in the last month. Updated at 2100 UTC.
• Earth's Busy Neighborhood Traffic Report
    One object is known to be within ten LD of Earth today. Updated at 1734 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 13 June '10

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

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one new and six updated listings. Of these, two were "one nighters." So far The Tracking News has counted a total of thirteen 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 13 June '10

Minor Planet Electronic Circulars

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

• MPEC 2010-L62 time-stamped "06:09 UT" - Daily Orbit Update - see below
• MPEC 2010-L63 time-stamped "14:51 UT" - 2010 LG61 - see below
• MPEC 2010-L64 time-stamped "19:10 UT" - 2010 LJ61 - see below
• MPEC 2010-L65 time-stamped "19:14 UT" - 2010 LK61 - see below
• MPEC 2010-L66 time-stamped "23:41 UT" - 2010 JL33

MPEC 2010-L66 - "23:41 UT" - 2010 JL33

• K10J33L   2010 JL33 (Q=4.630 AU, H=17.7 ~977m) from NEAT's GEODSS Haleakala telescope (1997 June 4.40-41p3, 1997 Dec. 29.57-59p3 & 1998 Jan. 26.31-33p3)

MPEC 2010-L65 - "19:14 UT" - 2010 LK61

• K10L61K   2010 LK61 (H=21.6 ~162m) was discovered at 0954 UT on 11 June by the Mt. Lemmon Survey (MLS), which observed it at June 11.41-45p7 and 13.33p1. The discovery was confirmed by Magdalena Ridge Obs. (MRO) (June 11.45-46p3 & 12.23-25p4), Great Shefford Obs. (June 11.99-02p3), Remanzacco Obs. (June 12.00-01p2), Sandlot Obs. (June 12.20-27p4), Chabot Obs. (June 13.32p3), and Astronomical Research Obs. Westfield (June 13.32-33p3).

MPEC 2010-L64 - "19:10 UT" - 2010 LJ61

• K10L61J   2010 LJ61 (risk-listed, H=20.4 ~282m) was discovered at 0037 UT on 8 June by WISE, which observed it at June 8.03p1, 8.16p1, 8.22p1, 8.29p1, and 8.36p1. The discovery was confirmed by the Spacewatch 1.8m telescope (June 12.19p2 & 13.19-21p5 at V=22.3) and MLS (June 13.19-20p4).

MPEC 2010-L63 - "14:51 UT" - 2010 LG61

• K10L61G   2010 LG61 (risk-listed, H=23.4 ~71m) was discovered at 1637 UT on 2 June by WISE, which observed it at June 2.69p1, 2.76p1, 2.82p1, 2.89p1, 2.96p1, 3.09p1, and 3.22p1.

<< DOU on 13 June '10 >>  MPEC 2010-L62 - "06:09 UT" - Daily Orbit Update

• Observations of risk-listed objects
• K10L34L   2010 LL34 (arc=3 days, H=19.3 ~467m) from MRO (June 12.33-35p4), Spacewatch 1.8m (June 12.36p2), and Tenagra II Obs. (June 12.43-45p2)
• Observations of recently (no longer) risk-listed objects
• K10L34M   2010 LM34 (small asteroid, Q=4.371 AU, arc=2 days, H=23.3 ~74m) from MRO (June 12.26-29p4), Tenagra II Obs. (June 12.27-29p3), and Walnut Creek Obs. (June 12.28-29p3)
• K10K10R   2010 KR10 (arc=23 days, H=19.4 ~446m) from Spacewatch 1.8m (June 12.44-45p3)
• K10K10Q   2010 KQ10 (arc=23 days, H=21.4 ~178m) from MRO (June 12.27-29p4)
• Observations of almost-small asteroids (21.7<H<=22.0)
• K10L34K   2010 LK34 (q=0.354 AU, arc=3 days, H=21.9 ~141m) from Walnut Creek Obs. (June 12.21-23p3) and Tenagra II Obs. (June 12.33-36p2)
• Observations of other objects
• K10L15E   2010 LE15 (arc=9 days, H=18.9 ~562m) from Spacewatch 1.8m (June 12.40-41p3)
• K10L14N   2010 LN14 (arc=6 days, H=21.1 ~204m) from Tenagra II Obs. (June 12.28p1)
• K10L14J   2010 LJ14 (arc=7 days, H=17.8 ~933m) from Spacewatch 1.8m (June 12.24-26p3)
• K10L14G   2010 LG14 (q=0.269 AU, arc=7 days, H=18.3 ~741m) from Desert Moon Obs. (June 5.40-45p3)
• K10JF3V   2010 JV153 (arc=37 days, H=20.0 ~339m) from Desert Moon Obs. (June 12.23-29p3)
• K10G62X   2010 GX62 (Q=5.033 AU, arc=63 days, H=20.1 ~323m) from Spacewatch 1.8m (June 12.38-39p3)
• K10F81J   2010 FJ81 (i=42.2°, Q=6.069 AU, arc=69 days, H=20.9 ~224m) from David Tholen's team on Mauna Kea (April 6.60p2 at R=22.8 & 8.59p3 at R=22.8-23.0)
• K10F81H   2010 FH81 (arc=38 days, H=21.7 ~155m) from Tholen team/Mauna Kea (April 8.60-61p3)
• K10CH1J   2010 CJ171 (arc=118 days, H=21.0 ~214m) from the Catalina Sky Survey (CSS) (June 12.34-36p3)
• K10C18H   2010 CH18 (Q=4.094 AU, arc=124 days, H=19.0 ~537m) from Spacewatch 1.8m (June 13.21-22p3)
• K09K05D   2009 KD5 (arc=3 opp, H=18.4 ~708m) from Tzec Maun Obs. Mayhill (June 12.30-33p3)
• K07VI9G   2007 VG189 (arc=2 opp, H=19.0 ~537m) from LINEAR (June 11.22-26p3)
• K05V00C   2005 VC (arc=3 opp, H=17.3 ~1.17 km) from MRO (June 12.40-44p3 at R=22.1-2)
• K03N06Z   2003 NZ6 (arc=5 opp, H=19.0 ~537m) from MLS (June 12.38-40p4)
• K03M04J   2003 MJ4 (arc=2 opp, H=18.8 ~589m) from LINEAR (June 11.38-42p5)
• K03K18Q   2003 KQ18 (arc=2 opp, H=20.9 ~224m) from the Siding Spring Survey (SSS) (June 12.71-75p5 & 12.83p1)
• K02X04H   2002 XH4 (arc=5 opp, H=19.3 ~467m) from LINEAR (June 11.38-43p4)
• K00E26K   2000 EK26 (arc=3 opp, H=17.9 ~891m) from MRO (June 12.39-45p4)
• J98X02M   1998 XM2 (arc=7 opp, H=17.1 ~1.29 km) from LINEAR (June 11.22-26p5 & 12.22-26p5)
• O1370   241370 2008 LW8 from LINEAR (June 11.16-20p5) and Tzec Maun Obs. Mayhill (June 12.31-33p3)
• N7442   237442 1999 TA10 from Tzec Maun Obs. Mayhill (June 12.36-37p2)
• G1998   161998 1988 PA from Desert Moon Obs. (June 12.31-32p5)
• F2637   152637 1997 NC1 from SSS (June 11.80-81p2)
• 85818   85818 1998 XM4 from Kiev Comet Station (June 7.92-02p39)
• 85628   85628 1998 KV2 from LINEAR (June 12.21-26p5)
• 66272   66272 1999 JW6 from CSS (June 12.21-23p4)
• 54789   54789 2001 MZ7 from CSS (June 12.19-20p4)
• 18109   18109 2000 NG11 from SSS (June 12.58-62p4)
• 12923   12923 Zephyr (1999 GK4) from Mataro Obs. (June 11.89-95p3)
• 04055   4055 Magellan (1985 DO2) from Tzec Maun Obs. Mayhill (June 12.34-36p3)
• 01685   1685 Toro (1948 OA) from SSS (June 12.54p1)

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Observers  on 13 June '10

A total of 20 observing facilities appear in today's MPECs.

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Impact Risk Monitoring  on 13 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 13 June '10

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