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Contents  on 8 January '10

• IAU Minor Planet Center
  • NEOCP Activity -- 15 listings: 4 new, 11 updated
  • New MPECs -- six MPECs
• Observers -- eleven observing facilities
• Impact Risk Monitoring -- four 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 8 January '10

The MPC's NEO Confirmation Page has 15 listings: 4 new, 11 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had four new and eleven updated listings. Of these, thirteen were "one nighters." So far The Tracking News has counted a total of 22 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 8 January '10

Minor Planet Electronic Circulars

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

• MPEC 2010-A33 time-stamped "07:10 UT" - Daily Orbit Update - see below
• MPEC 2010-A34 time-stamped "17:41 UT" - 2010 AK2 - see below
• MPEC 2010-A35 time-stamped "17:45 UT" - 2010 AL2 - see below
• MPEC 2010-A36 time-stamped "17:50 UT" - 2010 AM2 - see below
• MPEC 2010-A37 time-stamped "17:54 UT" - 2010 AN2 - see below
• MPEC 2010-A38 time-stamped "17:56 UT" - 2010 AO2

MPEC 2010-A38 - "17:56 UT" - 2010 AO2

• K10A02O   2010 AO2 (small asteroid, H=22.4 ~112m) was discovered at 0923 UT on 7 Jan. by the Mt. Lemmon Survey (MLS), which observed it at Jan. 7.39-41p4 and 8.38-40p5. The discovery was confirmed by Magdalena Ridge Obs. (MRO) (Jan. 7.49-53p5), the Spacewatch 1.8m telescope (Jan. 8.20-21p3), and Mark Trueblood via Kitt Peak Natl. Obs. (KPNO) (Jan. 8.26p4).

MPEC 2010-A37 - "17:54 UT" - 2010 AN2

• K10A02N   2010 AN2 (small asteroid, H=22.2 ~123m) was discovered at 0828 UT on 7 Jan. by MLS, which observed it at Jan. 7.35-37p4 and 8.35-37p3. The discovery was confirmed by MRO (Jan. 7.41-43p4), Spacewatch 1.8m (Jan. 7.42-43p3 & 8.19-20p3), and Trueblood/KPNO (Jan. 8.23-24p4).

MPEC 2010-A36 - "17:50 UT" - 2010 AM2

• K10A02M   2010 AM2 (small asteroid, Earth MOID=6.0 LD, H=23.6 ~65m) was discovered at 0745 UT on 7 Jan. by MLS, which observed it at Jan. 7.32-34p4 and 8.36-37p4. The discovery was confirmed by MRO (Jan. 7.38-41p4), Spacewatch 1.8m (Jan. 7.39-40p3 & 8.15-16p3), and Trueblood/KPNO (Jan. 8.21p3).

MPEC 2010-A35 - "17:45 UT" - 2010 AL2

• K10A02L   2010 AL2 (small asteroid, H=26.5 ~17m) was discovered at 0632 UT on 7 Jan. by LINEAR, which observed it at Jan. 7.27-31p4. The discovery was confirmed by MLS (Jan. 8.24p4), Trueblood/KPNO (Jan. 8.30p3), and Sabino Canyon Obs. (Jan. 8.35-36p3).

MPEC 2010-A34 - "17:41 UT" - 2010 AK2

• K10A02K   2010 AK2 (i=51.6°, Q=4.372 AU, H=18.5 ~676m) was discovered at 0851 UT on 6 Jan. by MLS, which observed it at Jan. 6.37-39p4. The discovery was confirmed by Spacewatch 1.8m (Jan. 6.42p2, 7.18-19p3 & 8.17-18p3), Great Shefford Obs. (Jan. 6.92-94p2), MRO (Jan. 7.21-23p4), and Trueblood/KPNO (Jan. 8.23p3).

<< DOU on 8 Jan. '10 >>  MPEC 2010-A33 - "07:10 UT" - Daily Orbit Update

• Observations of risk-listed objects
• K10A01R   2010 AR1 (small asteroid, arc=1 day, H=25.9 ~22m) from Spacewatch 1.8m (Jan. 8.26-27p3)
• K10A00J   2010 AJ (Q=4.229 AU, arc=2 days, H=20.0 ~339m) from Spacewatch 1.8m (Jan. 8.27-28p3)
• K09X00O   2009 XO (arc=29 days, H=20.3 ~295m) from Spacewatch 1.8m (Jan. 7.48-49p3)
• Observations of recently (no longer) risk-listed objects
• K09X02C   2009 XC2 (Q=4.181 AU, arc=27 days, H=17.0 ~1.35 km) from LINEAR (Jan. 7.45-50p5)
• Observations of small asteroids (H>22.0)
• K10A00F   2010 AF (arc=1 day, H=25.0 ~34m) from MRO (Jan. 7.47-49p4)
• Observations of other objects
• K09X02R   2009 XR2 (arc=25 days, H=19.0 ~537m) from Hamamatsu-Yuto Obs. (Jan. 7.56p1 & 7.60-62p4)
• K09W06K   2009 WK6 (arc=51 days, H=19.2 ~490m) from the Spacewatch 0.9m telescope (Jan. 7.20-21p2)
• K09U03N   2009 UN3 (i=37.4°, arc=81 days, H=17.7 ~977m) from Rio Cuarto Obs. (Jan. 8.16-17p3)
• K09S17V   2009 SV17 (Q=4.288 AU, arc=110 days, H=19.6 ~407m) from Spacewatch 1.8m (Jan. 8.07-08p3)
• K09N00A   2009 NA (Q=4.129 AU, arc=190 days, H=17.6 ~1.02 km) from LINEAR (Jan. 7.20-25p3)
• K09F19F   2009 FF19 (arc=3 opp, H=21.3 ~186m) from Spacewatch 0.9m (Jan. 7.23-26p3)
• K08Y32Z   2008 YZ32 (arc=2 opp, H=20.2 ~309m) from LINEAR (Jan. 7.20-25p5) and Hamamatsu-Yuto Obs. (Jan. 7.51-52p3)
• K07M13K   2007 MK13 (arc=3 opp, H=20.1 ~323m) from Hamamatsu-Yuto Obs. (Jan. 7.63-66p6)
• K06U00R   2006 UR (arc=2 opp, H=19.4 ~446m) from Hamamatsu-Yuto Obs. (Jan. 7.67-70p8)
• K06A04O   2006 AO4 (Q=4.162 AU, arc=4 opp, H=15.4 ~2.82 km, q=1.098 AU) from LINEAR (Jan. 7.33-38p5) and the Catalina Sky Survey (CSS) (Jan. 7.38-39p4)
• K05M00C   2005 MC (Q=4.167 AU, arc=3 opp, H=16.6 ~1.62 km) from Hamamatsu-Yuto Obs. (Jan. 7.70-73p7)
• K04X50D   2004 XD50 (arc=2 opp, H=18.5 ~676m) from Hamamatsu-Yuto Obs. (Jan. 7.73-77p5)
• K02P06P   2002 PP6 (arc=4 opp, H=18.8 ~589m) from Rio Cuarto Obs. (Jan. 8.10-11p3)
• M8587   228587 2002 AP7 from Spacewatch 0.9m (Jan. 7.19-21p3)
• D7925   137925 2000 BJ19 from CSS (Jan. 7.28-29p4)
• D7805   137805 1999 YK5 from LINEAR (Jan. 7.45-50p5)
• 85839   85839 1998 YO4 from LINEAR (Jan. 7.39-44p3)
• 85818   85818 1998 XM4 from Rio Cuarto Obs. (Jan. 8.13-14p3)
• 68216   68216 2001 CV26 from LINEAR (Jan. 7.46-51p5)
• 05626   5626 1991 FE from Hamamatsu-Yuto Obs. (Jan. 6.39p4 & 7.38-39p3)
• 03200   3200 Phaethon (1983 TB) from LINEAR (Jan. 7.07-12p5)

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Observers  on 8 January '10

Eleven observing facilities appear in today's MPECs.

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Impact Risk Monitoring  on 8 January '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 8 January '10

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