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Contents  on 2 February '08

• IAU Minor Planet Center
  • NEOCP Activity -- nine listings: 3 new, 6 updated
  • New MPECs -- twelve MPECs
  • Observers -- 20 observing facilities
• Impact Risk Monitoring -- eight objects
• Chronology

Resources:

• Consolidated Risk Tables - the CRT page
• Earth's Busy Neighborhood Traffic Report
• Ephemerides for risk-rated and nearby objects
• 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 2 February '08

The MPC's NEO Confirmation Page has 9 listings: 3 new, 6 updated

When last checked at 2354 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had three new and six updated listings. Of these, eight were "one nighters." So far The Tracking News has counted a total of 26 objects listed on the NEOCP at some point today.

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object by Birtwhistle et al. at Suno Observatory.

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

New MPECs  on 2 February '08

Minor Planet Electronic Circulars

As of last check at 2354 UTC, there have been twelve MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

• MPEC 2008-C04 time-stamped "07:08 UT" - Daily Orbit Update - see below
• MPEC 2008-C05 time-stamped "13:36 UT" - 2006 WW - see below
• MPEC 2008-C06 time-stamped "15:08 UT" - 2001 BE16 - see below
• MPEC 2008-C07 time-stamped "15:14 UT" - 2008 CF - see below
• MPEC 2008-C08 time-stamped "15:16 UT" - 2008 CG - see below
• MPEC 2008-C09 time-stamped "15:19 UT" - 2008 CH - see below
• MPEC 2008-C10 time-stamped "16:14 UT" - 2008 CJ - see below
• MPEC 2008-C11 time-stamped "16:17 UT" - 2008 CK - see below
• MPEC 2008-C12 time-stamped "19:02 UT" - 2008 CM - see below
• MPEC 2008-C13 time-stamped "22:55 UT" - 2008 CO - see below
• MPEC 2008-C14 time-stamped "22:58 UT" - 2008 CP - see below
• MPEC 2008-C15 time-stamped "23:00 UT" - 2008 CQ

MPEC 2008-C15 - "23:00 UT" - 2008 CQ

• K08C00Q   2008 CQ (small asteroid, Earth MOID=4.6 LD, H=25.4 ~28m) was discovered at 0802 UT on 2 Feb. by LINEAR, which observed it at Feb. 2.33-39p5. The discovery was confirmed by Gnosca Obs. (Feb. 2.87p2), Eschenberg Obs. (Feb. 2.90-91p7), and La Canada Obs. (Feb. 2.91p3). This object is now within ten lunar distances (LD) of Earth, reaching 5.0 LD on 31 Jan.

MPEC 2008-C14 - "22:58 UT" - 2008 CP

• K08C00P   2008 CP (small asteroid, H=23.7 ~62m) was discovered at 0759 UT on 2 Feb. by the Catalina Sky Survey (CSS), which observed it at Feb. 2.33-37p7. The discovery was confirmed by Sabino Canyon Obs. (Feb. 2.39-40p3) and Gnosca Obs. (Feb. 2.88-89p2).

MPEC 2008-C13 - "22:55 UT" - 2008 CO

• K08C00O   2008 CO (small asteroid, H=22.9 ~89m) was discovered at 0700 UT on 2 Feb. by the Mt. Lemmon Survey (MLS), which observed it at Feb. 2.29-31p3, 2.37p3, and 2.45p4. The discovery was confirmed by Sabino Canyon Obs. (Feb. 2.41p3) and Gaisberg Obs. (Feb. 2.90-91p4).

MPEC 2008-C12 - "19:02 UT" - 2008 CM

• K08C00M   2008 CM (IEO, q=0.152 AU, Q=0.877 AU, H=18.1 ~812m) was discovered at 0202 UT on 2 Feb. by the CSS, which observed it at Feb. 2.09-10p4. The discovery was confirmed by MLS (Feb. 2.13p4), Sabino Canyon Obs. (Feb. 2.14-15p3), and La Canada Obs. (Feb. 2.77-78p3).

MPEC 2008-C11 - "16:17 UT" - 2008 CK

• K08C00K   2008 CK (risk-listed, Earth MOID=7.4 LD, H=26.2 ~19m) was discovered at 0926 UT on 2 Feb. by the MLS, which observed it at Feb. 2.39-45p6. The discovery was confirmed by Jim Young via Table Mtn. Obs. (Feb. 2.42-44p6) and Sabino Canyon Obs. (Feb. 2.42-43p3). This object was within ten lunar distances (LD) of Earth, reaching 9.2 LD on 31 Jan.

MPEC 2008-C10 - "16:14 UT" - 2008 CJ

• K08C00J   2008 CJ (risk-listed, Q=4.119 AU, H=27.3 ~12m) was discovered at 0554 UT on 2 Feb. by the MLS, which observed it at Feb. 2.25-29p8 and 2.43p2.

MPEC 2008-C09 - "15:19 UT" - 2008 CH

• K08C00H   2008 CH (Q=4.080 AU, Earth MOID=7.6 LD, H=20.5 ~269m) was discovered at 1241 UT on 1 Feb. by the CSS, which observed it at Feb. 1.53-56p8 and 2.47-49p3. The discovery was confirmed by Great Shefford Obs. (Feb. 2.11p3), Sabino Canyon Obs. (Feb. 2.45p3), Young/Table Mtn. (Feb. 2.48-50p4), and McDonald Obs. (Feb. 2.52-53p3).

MPEC 2008-C08 - "15:16 UT" - 2008 CG

• K08C00G   2008 CG (small asteroid, H=22.2 ~123m) was discovered at 0810 UT on 1 Feb. by LINEAR, which observed it at Feb. 1.34-39p5. The discovery was confirmed by Great Shefford Obs. (Feb. 1.97p3), Sabino Canyon Obs. (Feb. 2.38p3), and Young/Table Mtn. (Feb. 2.46-48p4).

MPEC 2008-C07 - "15:14 UT" - 2008 CF

• K08C00F   2008 CF (small asteroid, H=26.5 ~17m) was discovered at 0550 UT on 1 Feb. by the MLS, which observed it at Feb. 1.24-25p2, 1.30p4, 1.44p4, 2.39-40p5, and 2.45p4. The discovery was confirmed by Great Shefford Obs. (Feb. 1.93p2).

MPEC 2008-C06 - "15:08 UT" - 2001 BE16

• K01B16E   2001 BE16 (i=39.4°, H=19.8 ~371m) from LINEAR (Feb. 1.21-26p5), Great Shefford Obs. (Feb. 1.95-96p2), MLS (Feb. 2.16p4), Young/Table Mtn. (Feb. 2.18-21p4), and Sabino Canyon Obs. (Feb. 2.25-26p3)

MPEC 2008-C05 - "13:36 UT" - 2006 WW

• K06W00W   2006 WW (q=0.367 AU, Q=5.018 AU, H=16.2 ~1.95 km) from Astronomical Research Obs. (ARO) (Jan. 3.20-23p3 at V=22.5-7, 28.10-11p2 at V=22.9-23.0 & 31.05-07p2 at V=23.1-2)

<< DOU on 2 Feb. '08 >>  MPEC 2008-C04 - "07:08 UT" - Daily Orbit Update

• Observations of risk-listed objects
• K08B16O   2008 BO16 (small asteroid, Q=4.407 AU, arc=3 days, H=22.8 ~93m) from the Spacewatch 1.8m telescope (Feb. 1.31p3) and Great Shefford Obs. (Feb. 2.04-05p3)
• K08B16N   2008 BN16 (small asteroid, arc=2 days, H=26.0 ~21m) from Spacewatch 1.8m (Feb. 1.28-29p2)
• K08B15E   2008 BE15 (small asteroid, Q=4.145 AU, arc=3 days, H=24.6 ~41m) from Young/Table Mtn. (Feb. 1.44-45p3) and Great Shefford Obs. (Feb. 2.00-01p3)
• K08B15D   2008 BD15 (arc=3 days, H=20.9 ~224m) from Green Island Obs. (Jan. 31.78p1 & 31.88p2), Polaris Obs. (Jan. 31.86-87p8), MLS (Feb. 1.18p4 & 1.30p4), Young/Table Mtn. (Feb. 1.42-43p4), Great Shefford Obs. (Feb. 2.03p3), and Spacewatch 1.8m (Feb. 2.23-24p3)
• K08A04F   2008 AF4 (arc=22 days, H=19.8 ~371m) from Green Island Obs. (Jan. 31.79p1 & 31.88p1), CSS (Feb. 1.17-19p4), and Hamamatsu-Yuto Obs. (Feb. 1.61-63p4)
• Observations of recently (no longer) risk-listed objects
• K08A04E   2008 AE4 (small asteroid, arc=21 days, H=23.8 ~59m) from Silver Spring Obs. (Jan. 31.28-34p3)
• K07Y56M   2007 YM56 (small asteroid, arc=33 days, H=22.3 ~117m) from Spacewatch 1.8m (Feb. 1.22p3)
• K07Y02B   2007 YB2 (Q=5.227 AU, arc=45 days, H=18.4 ~708m) from CSS (Feb. 1.53-54p3)
• Observations of small asteroids (H>22.0)
• K08B00E   2008 BE (arc=15 days, H=22.8 ~93m) from Spacewatch 1.8m (Feb. 1.54-55p3)
• K07P09S   2007 PS9 (arc=173 days, H=23.5 ~68m) from MLS (Feb. 1.26-29p4)
• Observations of other objects
• K08B16P   2008 BP16 (q=0.288 AU, arc=2 days, H=21.6 ~162m) from MLS (Feb. 1.48-50p8)
• K08B16H   2008 BH16 (arc=2 days, H=20.6 ~257m) from Polaris Obs. (Jan. 31.89-90p4) and Young/Table Mtn. (Feb. 1.38-40p4)
• K08A01X   2008 AX1 (arc=24 days, H=21.3 ~186m) from Spacewatch 1.8m (Feb. 1.24-25p2)
• K07T24U   2007 TU24 (arc=113 days, H=20.6 ~257m) from Gnosca Obs. (Jan. 29.75p1 & 29.85-86p2), Hamamatsu-Yuto Obs. (Jan. 31.76-79p21), and Polaris Obs. (Jan. 31.94-95p21)
• K07P11U   2007 PU11 (Q=4.384 AU, arc=3 opp, H=16.3 ~1.86 km) from Green Island Obs. (Jan. 31.71p1 & 31.77-80p2)
• K05X01D   2005 XD1 (arc=2 opp, H=19.4 ~446m) from Green Island Obs. (Jan. 31.77-80p2) and CSS (Feb. 1.20-21p4)
• K05T45U   2005 TU45 (arc=3 opp, H=17.1 ~1.29 km) from Green Island Obs. (Jan. 31.72p1 & 31.78p1) and Hamamatsu-Yuto Obs. (Feb. 1.49p1 & 1.56-59p4)
• K04XG4P   2004 XP164 (arc=3 opp, H=17.5 ~1.07 km) from CSS (Feb. 1.10-12p4)
• K02A05U   2002 AU5 (arc=5 opp, H=17.8 ~933m) from MLS (Feb. 1.48-50p4)
• J93T02Q   1993 TQ2 (arc=2 opp, H=20.0 ~339m) from LINEAR (Feb. 1.21-26p5)
• F2942   152942 2000 FN10 from LINEAR (Feb. 1.34-38p4)
• E2464   142464 2002 TC9 from Polaris Obs. (2006 Sept. 14.86-89p6)
• 90403   90403 2003 YE45 from LINEAR (Feb. 1.21-26p5)
• 85275   85275 1994 LY from CSS (Feb. 1.10-12p4)
• 24445   24445 2000 PM8 from MLS (Feb. 1.53-54p4)
• 22099   22099 2000 EX106 from the Spacewatch 0.9m telescope (Feb. 1.28-32p3)
• 05131   5131 1990 BG from Abbeydale Obs. (Feb. 1.79-83p3)
• 03752   3752 Camillo (1985 PA) from CSS (Feb. 1.53-55p4)
• 03552   3552 Don Quixote (1983 SA) from Spacewatch 0.9m (Feb. 1.34-38p3)
• 03288   3288 Seleucus (1982 DV) from Goodricke-Pigott Obs. (Jan. 31.23-24p2)

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Observers  on 2 February '08

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

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

Impact Risk Monitoring  on 2 February '08

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 2 February '08

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