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Contents  on 25 February '10

• IAU Minor Planet Center
  • NEOCP Activity -- four listings: 4 updated
  • New MPECs -- five MPECs
• Observers -- seventeen observing facilities
• Impact Risk Monitoring -- two objects
• Chronology

Resources:

• Consolidated Risk Tables - the CRT page
• Earth's Busy Neighborhood Traffic Report
• 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.

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

NEOCP Activity  on 25 February '10

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

When last checked at 2018 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had four updated listings. So far The Tracking News has counted a total of seven 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 25 February '10

Minor Planet Electronic Circulars

As of last check at 2018 UTC, there have been five MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

• MPEC 2010-D78 time-stamped "07:25 UT" - Daily Orbit Update - see below
• MPEC 2010-D79 time-stamped "17:23 UT" - 2010 DG56 - see below
• MPEC 2010-D80 time-stamped "17:27 UT" - 2010 DH56 - see below
• MPEC 2010-D81 time-stamped "17:30 UT" - 2010 DJ56 - see below
• MPEC 2010-D82 time-stamped "17:45 UT" - 2009 XC2

MPEC 2010-D82 - "17:45 UT" - 2009 XC2

• K09X02C   2009 XC2 (Q=4.188 AU, H=17.0 ~1.35 km) from Rob Matson using the Palomar Digitized Sky Survey (1954 Feb. 25.17-20p2 & 1997 March 9.13-17p2)

MPEC 2010-D81 - "17:30 UT" - 2010 DJ56

• K10D56J   2010 DJ56 (i=38.3°, H=19.3 ~467m) was discovered at 0301 UT on 23 Feb. by WISE, which observed it at Feb. 23.13p1, 23.26p1, 23.52p2, 24.05p1, 24.12p1, 24.25p1, and 24.38p1. The discovery was confirmed by Sandlot Obs. (Feb. 25.45-48p3) and the Spacewatch 1.8m telescope (Feb. 25.49p2).

MPEC 2010-D80 - "17:27 UT" - 2010 DH56

• K10D56H   2010 DH56 (H=20.2 ~309m) was discovered at 1224 UT on 20 Feb. by WISE, which observed it at Feb. 20.52p1, 20.65p1, 20.72p1, 20.85p1, 20.98p1, 21.11p1, 22.77p2, 22.90p1, 23.03p1, 23.16p1, and 23.23p1. The discovery was confirmed by Spacewatch 1.8m (Feb. 25.13-14p2 at V=21.8-22.3).

MPEC 2010-D79 - "17:23 UT" - 2010 DG56

• K10D56G   2010 DG56 (i=160.4°, q=1.570 AU, Q=66.432 AU, H=18.1 ~812m) was discovered at 0001 UT on 18 Feb. by WISE, which observed it at Feb. 18.00p1, 18.13p1, 18.20p1, 18.27p2, and 18.46p1. The discovery was confirmed by David Tholen's team on Mauna Kea (Feb. 20.26p2 & 21.30-31p2) and Spacewatch 1.8m (Feb. 25.10-11p3).

<< DOU on 25 Feb. '10 >>  MPEC 2010-D78 - "07:25 UT" - Daily Orbit Update

• Observations of risk-listed objects
• K10C55H   2010 CH55 (arc=9 days, H=19.7 ~389m) from Spacewatch 1.8m (Feb. 24.29-30p3)
• Observations of recently (no longer) risk-listed objects
• K10D01W   2010 DW1 (arc=7 days, H=19.7 ~389m) from Desert Moon Obs. (Feb. 24.53p3)
• K10D01J   2010 DJ1 (small asteroid, arc=4 days, H=26.9 ~14m) from Schiaparelli Obs. (Feb. 20.84-85p3)
• K10D00P   2010 DP (i=36.5°, arc=8 days, H=18.5 ~676m) from Spacewatch 1.8m (Feb. 24.39p3)
• K10D00A   2010 DA (arc=8 days, H=20.3 ~295m) from Schiaparelli Obs. (Feb. 20.89-90p2) and Astronomical Research Obs. Westfield (ARO Westfield) (Feb. 24.11p3)
• K10C44O   2010 CO44 (small asteroid, arc=9 days, H=24.6 ~41m) from Spacewatch 1.8m (Feb. 24.36p2)
• K10C19G   2010 CG19 (i=62.7°, arc=10 days, H=19.5 ~426m) from Sandlot Obs. (Feb. 24.28-30p3)
• K10C19F   2010 CF19 (almost small, arc=10 days, H=21.9 ~141m) from Schiaparelli Obs. (Feb. 20.81p1 & 20.86p1) and ARO Westfield (Feb. 24.06-07p3)
• K10C19D   2010 CD19 (arc=11 days, H=18.1 ~812m) from ARO Westfield (Feb. 24.05-06p3) and Tenagra II Obs. (Feb. 25.13p3)
• Observations of small asteroids (H>22.0)
• K10D01Z   2010 DZ1 (arc=5 days, H=25.5 ~27m) from Schiaparelli Obs. (Feb. 20.88-89p3) and Tenagra II Obs. (Feb. 24.34-35p3)
• K10C55D   2010 CD55 (arc=10 days, H=23.1 ~81m) from Schiaparelli Obs. (Feb. 20.77-79p3), ARO Westfield (Feb. 24.06-07p3), and Tenagra II Obs. (Feb. 25.14p3)
• K09U02D   2009 UD2 (arc=130 days, H=22.3 ~117m) from Hamamatsu-Yuto Obs. (Feb. 24.71-74p7)
• Observations of almost-small asteroids (21.7<H<=22.0)
• K10D01F   2010 DF1 (arc=7 days, H=21.8 ~148m) from Spacewatch 1.8m (Feb. 24.31-32p3)
• Observations of other objects
• K10D34B   2010 DB34 (arc=3 days, H=19.0 ~537m) from Shenton Park Obs. (Feb. 24.75-78p2)
• K10D01X   2010 DX1 (Q=4.408 AU, arc=5 days, H=21.6 ~162m) from Schiaparelli Obs. (Feb. 20.82-83p2), Ovidiu Vaduvescu via La Palma (Feb. 23.04p5), ARO Westfield (Feb. 24.12-13p3), Tenagra II Obs. (Feb. 24.26-27p3), Sandlot Obs. (Feb. 24.27-28p3), and Desert Moon Obs. (Feb. 24.31-32p3)
• K10D00O   2010 DO (arc=5 days, H=21.6 ~162m) from Schiaparelli Obs. (Feb. 21.19-20p2)
• K10C44M   2010 CM44 (arc=11 days, H=19.1 ~513m) from Desert Moon Obs. (Feb. 24.41-42p3) and Shenton Park Obs. (Feb. 24.79-80p2)
• K10C18L   2010 CL18 (Q=4.207 AU, arc=11 days, H=18.4 ~708m) from Desert Moon Obs. (Feb. 24.44-45p3)
• K10C18H   2010 CH18 (Q=4.081 AU, arc=15 days, H=18.8 ~589m) from Tenagra II Obs. (Feb. 24.10-11p3)
• K10C01R   2010 CR1 (q=0.366 AU, arc=15 days, H=18.4 ~708m) from Shenton Park Obs. (Feb. 24.59-60p2 & 24.66p3)
• K10C01N   2010 CN1 (arc=14 days, H=19.0 ~537m) from the Siding Spring Survey (SSS) (Feb. 23.43p2)
• K10C01L   2010 CL1 (arc=15 days, H=19.5 ~426m) from Desert Moon Obs. (Feb. 24.23-28p3)
• K10B03C   2010 BC3 (Q=5.272 AU, arc=34 days, H=20.4 ~282m) from Desert Moon Obs. (Feb. 24.47-50p3)
• K10A00E   2010 AE (arc=50 days, H=19.5 ~426m) from Shenton Park Obs. (Feb. 24.56-57p3)
• K09X02R   2009 XR2 (arc=73 days, H=19.0 ~537m) from Desert Moon Obs. (Feb. 24.11-19p3)
• K09C05Q   2009 CQ5 (arc=2 opp, H=17.6 ~1.02 km) from Shenton Park Obs. (Feb. 24.56p2)
• K08E09B   2008 EB9 (arc=2 opp, H=20.4 ~282m) from the Spacewatch 0.9m telescope (Feb. 24.33-36p2)
• K08E00E   2008 EE (arc=3 opp, H=19.8 ~371m) from Hamamatsu-Yuto Obs. (Feb. 24.66-69p5) and Peschiera del Garda Obs. (Feb. 24.95-99p4)
• K04R11A   2004 RA11 (i=39.4°, arc=3 opp, H=18.8 ~589m) from Shenton Park Obs. (Feb. 24.58p3)
• K03U12L   2003 UL12 (Q=5.602 AU, arc=3 opp, H=17.3 ~1.17 km) from LINEAR (Feb. 24.49-51p3)
• K01P09T   2001 PT9 (arc=2 opp, H=20.8 ~234m) from Hamamatsu-Yuto Obs. (Feb. 24.61-64p5) and Peschiera del Garda Obs. (Feb. 25.01-02p5)
• K00CA1O   2000 CO101 (arc=2 opp, H=19.0 ~537m) from Schiaparelli Obs. (Feb. 21.16-17p5) and Hamamatsu-Yuto Obs. (Feb. 24.51-55p10)
• N0111   230111 2001 BE10 from LINEAR (Feb. 24.11-16p4)
• G3691   163691 2003 BB43 from WISE (Feb. 18.66p1, 19.12p1, 19.19p1, 19.26p2, 19.39p1, 19.45p1, 19.52p1, 19.59p1 & 19.65p1)
• G2900   162900 2001 HG31 from Betelgeuse Station (2009 Feb. 14.99-00p3)
• G2882   162882 2001 FD58 from Peschiera del Garda Obs. (Feb. 24.80-81p4)
• F9686   159686 2002 LB6 from WISE (Feb. 18.53p1 & 18.66p1)
• A5141   105141 2000 NF11 from Desert Moon Obs. (Feb. 24.34-35p4)
• 89355   89355 2001 VS78 from Betelgeuse Sta. (2009 Feb. 14.99p1)
• 85628   85628 1998 KV2 from WISE (Feb. 18.23p1, 18.63p1, 18.76p1, 19.03p1, 19.09p1, 19.36p1, 19.42p1, 19.62p1, 19.76p1 & 20.15p1)
• 22753   22753 1998 WT from Betelgeuse Sta. (2009 Feb. 15.03-04p2)
• 10115   10115 1992 SK from WISE (Feb. 18.27p1, 18.67p1, 18.74p1, 18.80p2, 18.87p1, 18.94p1, 19.00p1, 19.13p2, 19.27p1, 19.53p1 & 19.66p1)
• 07822   7822 1991 CS from WISE (Feb. 19.12p1, 19.19p1, 19.25p1, 19.39p1, 19.52p1, 19.58p1 & 19.65p1)
• 05604   5604 1992 FE from WISE (Feb. 23.00p1, 23.66p1, 23.80p1, 23.93p1, 23.99p1 & 24.13p1)
• 04179   4179 Toutatis (1989 AC) from Betelgeuse Sta. (2009 Feb. 15.03p3)
• 04015   4015 Wilson-Harrington (1979 VA) from WISE (Feb. 18.53p1, 18.60p2, 18.67p1, 18.87p1, 19.13p1, 19.26p1, 19.53p1, 19.66p1, 23.23p1, 23.30p1, 23.36p1, 23.50p1, 23.63p1, 23.76p1 & 23.89p1)
• 03122   3122 Florence (1981 ET3) from Betelgeuse Sta. (2009 Feb. 15.11p3)

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Observers  on 25 February '10

Seventeen observing facilities appear in today's MPECs.

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

Impact Risk Monitoring  on 25 February '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 25 February '10

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