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Contents  on 10 February '10

• IAU Minor Planet Center
  • NEOCP Activity -- three listings: 1 new, 2 updated
  • New MPECs -- eight MPECs
• Observers -- sixteen observing facilities
• Impact Risk Monitoring -- one object
• 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 10 February '10

The MPC's NEO Confirmation Page has 3 listings: 1 new, 2 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one new and two updated listings. Of these, one was a "one nighter." 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 10 February '10

Minor Planet Electronic Circulars

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

• MPEC 2010-C35 time-stamped "00:32 UT" - 2010 CJ1 - see below
• MPEC 2010-C36 time-stamped "00:36 UT" - 2010 CK1 - see below
• MPEC 2010-C37 time-stamped "00:38 UT" - 2010 CL1 - see below
• MPEC 2010-C38 time-stamped "07:21 UT" - Daily Orbit Update - see below
• MPEC 2010-C39 time-stamped "15:05 UT" - 2010 CM1 - see below
• MPEC 2010-C40 time-stamped "15:09 UT" - 2010 CN1 - see below
• MPEC 2010-C41 time-stamped "15:53 UT" - 2010 CO1 - see below
• MPEC 2010-C42 time-stamped "21:17 UT" - 2010 CR1

MPEC 2010-C42 - "21:17 UT" - 2010 CR1

• K10C01R   2010 CR1 (q=0.330 AU, H=18.2 ~776m) was discovered at 1528 UT on 9 Feb. by the Siding Spring Survey (SSS), which observed it at Feb. 9.64-68p4, 9.78p1, and 10.60p2. The discovery was confirmed by Tanti Obs. (Feb. 10.13-14p3).

MPEC 2010-C41 - "15:53 UT" - 2010 CO1

• K10C01O   2010 CO1 (Earth MOID=8.7 LD, H=21.5 ~170m) was discovered at 1141 UT on 1 Feb. by WISE, which observed it at Feb. 1.49p1, 1.55p1, 1.69p2, 1.75p1, 1.82p1, 1.88p1, 1.95p1, 2.02p1, 2.08p1, 2.28p1, and 2.35p1. The discovery was confirmed by the Spacewatch 1.8m telescope (Feb. 5.49-51p2 & 6.54-55p2), the Mt. Lemmon Survey (MLS) (Feb. 6.51-54p4), and Astronomical Research Obs. Westfield (ARO Westfield) (Feb. 7.47-49p2).

MPEC 2010-C40 - "15:09 UT" - 2010 CN1

• K10C01N   2010 CN1 (H=19.1 ~513m) was discovered at 1033 UT on 9 Feb. by SSS, which observed it at Feb. 9.44-45p2, 9.50-51p2, and 10.47p2. The discovery was confirmed by Tanti Obs. (Feb. 10.16-18p4).

MPEC 2010-C39 - "15:05 UT" - 2010 CM1

• K10C01M   2010 CM1 (small asteroid, H=25.3 ~29m) was discovered at 0645 UT on 9 Feb. by MLS, which observed it at Feb. 9.28-31p4. The discovery was confirmed by Spacewatch 1.8m (Feb. 10.36-37p3 at V=21.2-22.1).

<< DOU on 10 Feb. '10 >>  MPEC 2010-C38 - "07:21 UT" - Daily Orbit Update

• Observations of recently (no longer) risk-listed objects
• K10B02L   2010 BL2 (i=60.1°, arc=20 days, H=16.3 ~1.86 km) from ARO Westfield (Feb. 8.01-02p3)
• Observations of small asteroids (H>22.0)
• K10B04Z   2010 BZ4 (Q=4.363 AU, arc=13 days, H=22.3 ~117m) from ARO Westfield (Feb. 7.48-50p5)
• K10A00L   2010 AL (arc=32 days, H=22.5 ~107m) from ARO Westfield (Feb. 7.41-43p3)
• Observations of almost-small asteroids (21.7<H<=22.0)
• K10A60O   2010 AO60 (arc=25 days, H=21.8 ~148m) from ARO Westfield (Feb. 8.19-20p3)
• Observations of other objects
• K10C00T   2010 CT (q=0.295 AU, arc=1 day, H=20.2 ~309m) from SSS (Feb. 9.62p1)
• K10C00M   2010 CM (Q=4.021 AU, arc=28 days, H=18.4 ~708m) from Desert Moon Obs. (Feb. 9.19-26p3)
• K10B03C   2010 BC3 (Q=5.215 AU, arc=17 days, H=20.3 ~295m) from ARO Westfield (Feb. 7.47-48p3)
• K10B03B   2010 BB3 (arc=19 days, H=20.3 ~295m) from ARO Westfield (Feb. 7.30-31p3)
• K10B02H   2010 BH2 (arc=20 days, H=19.5 ~426m) from ARO Westfield (Feb. 7.13-14p3)
• K10B00Q   2010 BQ (i=37.0°, arc=23 days, H=20.2 ~309m) from ARO Westfield (Feb. 8.22-24p3)
• K10A30H   2010 AH30 (i=43.2°, arc=29 days, H=18.4 ~708m) from ARO Westfield (Feb. 8.14-17p3)
• K10A00E   2010 AE (arc=34 days, H=19.5 ~426m) from ARO Westfield (Feb. 7.24-25p5)
• K09X02R   2009 XR2 (arc=56 days, H=19.0 ~537m) from ARO Westfield (Feb. 7.17-18p2)
• K09X02F   2009 XF2 (arc=58 days, H=20.1 ~323m) from ARO Westfield (Feb. 8.06-07p4)
• K09WA4F   2009 WF104 (Q=5.099 AU, arc=78 days, H=17.0 ~1.35 km) from Desert Moon Obs. (Feb. 9.09-14p3)
• K09W06O   2009 WO6 (Q=4.882 AU, arc=113 days, H=17.3 ~1.17 km) from Castelmartini Obs. (Feb. 8.77p3)
• K09W01L   2009 WL1 (arc=83 days, H=18.7 ~616m) from ARO Westfield (Feb. 8.11-13p3)
• K09U18V   2009 UV18 (Q=5.187 AU, arc=2 opp, H=15.8 ~2.34 km, q=1.167 AU) from ARO Westfield (Feb. 7.50p3)
• K09U03N   2009 UN3 (i=37.4°, arc=113 days, H=18.0 ~851m) from the Spacewatch 0.9m telescope (Feb. 9.45-48p3), Tzec Maun Obs. Moorook (Feb. 9.72-73p6), Great Shefford Obs. (Feb. 10.00-01p3), Mt. Tuffley Obs. (Feb. 10.02p3), and Huelva Obs. (Feb. 10.03-06p3)
• K09SH1V   2009 SV171 (Q=4.184 AU, arc=134 days, H=19.6 ~407m) from Rio Cuarto Obs. (Feb. 9.06-08p3)
• K09Q08L   2009 QL8 (arc=173 days, H=19.5 ~426m) from ARO Westfield (Feb. 7.42-44p3) and Desert Moon Obs. (Feb. 9.42-47p3)
• K08E00E   2008 EE (arc=3 opp, H=19.7 ~389m) from LINEAR (Feb. 7.36-40p4)
• K03B47T   2003 BT47 (arc=4 opp, H=17.3 ~1.17 km) from Castelmartini Obs. (Feb. 9.03-04p3)
• K03A02Z   2003 AZ2 (arc=4 opp, H=18.3 ~741m) from ARO Westfield (Feb. 7.40-41p3)
• K02N16W   2002 NW16 (arc=2 opp, H=18.1 ~812m) from LINEAR (Feb. 7.09-14p5)
• K02AC9J   2002 AJ129 (q=0.117 AU, arc=3 opp, H=18.5 ~676m) from the Catalina Sky Survey (CSS) (Feb. 9.27-28p4) and LINEAR (Feb. 9.37-41p4)
• K01P09T   2001 PT9 (arc=2 opp, H=20.5 ~269m) from LINEAR (Feb. 9.37-41p4)
• K00E70W   2000 EW70 (arc=2 opp, H=21.2 ~195m) from ARO Westfield (Feb. 7.45-47p2)
• J99V11Q   1999 VQ11 (Q=4.488 AU, arc=3 opp, H=17.6 ~1.02 km) from ARO Westfield (Feb. 7.34-38p3 at V=22.2-4)
• N0420   230420 2002 PP6 from Castelmartini Obs. (Feb. 8.88p3)
• L6689   216689 2004 HM1 from Spacewatch 0.9m (Feb. 6.19p2)
• L4088   214088 2004 JN13 from Castelmartini Obs. (Feb. 8.78p3)
• H2722   172722 2004 BV102 from Spacewatch 0.9m (Feb. 9.20-24p3)
• G2998   162998 2001 SK162 from Castelmartini Obs. (Feb. 8.80p3)
• G2038   162038 1996 DH from Castelmartini Obs. (Feb. 9.00p2)
• D6618   136618 1994 CN2 from Spacewatch 0.9m (Feb. 9.44-47p3)
• A5141   105141 2000 NF11 from Castelmartini Obs. (Feb. 9.01-02p3)
• 86067   86067 1999 RM28 from LINEAR (Feb. 7.30-33p4), Castelmartini Obs. (Feb. 9.03p3), and Mt. Tuffley Obs. (Feb. 9.99-00p3)
• 54789   54789 2001 MZ7 from Castelmartini Obs. (Feb. 8.98-99p3), LINEAR (Feb. 9.30-35p5), and Mt. Tuffley Obs. (Feb. 10.00-01p3)
• 26760   26760 2001 KP41 from Spacewatch 0.9m (Feb. 9.26-29p3)
• 20790   20790 2000 SE45 from LINEAR (Feb. 7.09-14p4) and Castelmartini Obs. (Feb. 8.79p3)
• 10165   10165 1995 BL2 from LINEAR (Feb. 7.22-27p4)
• 08567   8567 1996 HW1 from Spacewatch 0.9m (Feb. 9.44-48p3)
• 05693   5693 1993 EA from LINEAR (Feb. 9.38-40p3)
• 05626   5626 1991 FE from Castelmartini Obs. (Feb. 8.78p3)
• 04015   4015 Wilson-Harrington (1979 VA) from LINEAR (Feb. 7.09-14p5)
• 01862   1862 Apollo (1932 HA) from LINEAR (Feb. 9.31-35p3)
• 01627   1627 Ivar (1929 SH) from Spacewatch 0.9m (Feb. 9.20-24p3)
• 00433   433 Eros (1898 DQ) from Castelmartini Obs. (Feb. 8.72-73p3)

MPEC 2010-C37 - "00:38 UT" - 2010 CL1

• K10C01L   2010 CL1 (H=19.0 ~537m) was discovered at 0702 UT on 9 Feb. by CSS, which observed it at Feb. 9.29-37p8. The discovery was confirmed by Great Shefford Obs. (Feb. 9.99-00p3).

MPEC 2010-C36 - "00:36 UT" - 2010 CK1

• K10C01K   2010 CK1 (small asteroid, H=23.7 ~62m) was discovered at 0700 UT on 9 Feb. by CSS, which observed it at Feb. 9.29-31p4 and 9.38p3. The discovery was confirmed by Great Shefford Obs. (Feb. 9.91-92p5).

MPEC 2010-C35 - "00:32 UT" - 2010 CJ1

• K10C01J   2010 CJ1 (risk-listed, Earth MOID=6.7 LD, H=24.1 ~51m) was discovered at 0637 UT on 9 Feb. by MLS, which observed it at Feb. 9.28-31p4. The discovery was confirmed by Great Shefford Obs. (Feb. 9.97-98p3).

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

Observers  on 10 February '10

Sixteen observing facilities appear in today's MPECs.

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

Impact Risk Monitoring  on 10 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 10 February '10

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