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Contents  on 23 October '08

• IAU Minor Planet Center
  • NEOCP Activity -- six listings: 1 new, 5 updated
  • New MPECs -- four MPECs
• Observers -- 21 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
• 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 23 October '08

The MPC's NEO Confirmation Page has 6 listings: 1 new, 5 updated

When last checked at 2358 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had one new and five updated listings. All of these were "one nighters." So far The Tracking News has counted a total of eleven 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 23 October '08

Minor Planet Electronic Circulars

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

• MPEC 2008-U40 time-stamped "01:58 UT" - 2008 UM1 - see below
• MPEC 2008-U41 time-stamped "06:11 UT" - Daily Orbit Update - see below
• MPEC 2008-U42 time-stamped "19:17 UT" - 2008 UT1 - see below
• MPEC 2008-U43 time-stamped "19:19 UT" - 2008 UU1

MPEC 2008-U43 - "19:19 UT" - 2008 UU1

• K08U01U   2008 UU1 (Earth MOID=8.2 LD, H=19.7 ~389m) was discovered at 1410 UT on 22 Oct. by the Siding Spring Survey (SSS), which observed it at Oct. 22.59-62p4, 22.68-76p3, and 23.61-62p2. The discovery was confirmed by CEAMIG-REA (Oct. 23.26p2).

MPEC 2008-U42 - "19:17 UT" - 2008 UT1

• K08U01T   2008 UT1 (i=43.5°, H=21.6 ~162m) was discovered at 0730 UT on 22 Oct. by LINEAR, which observed it at Oct. 22.31-36p5 and 23.31-41p12. The discovery was confirmed by Great Shefford Obs. (Oct. 22.95-99p3).

<< DOU on 23 Oct. '08 >>  MPEC 2008-U41 - "06:11 UT" - Daily Orbit Update

• Observations of risk-listed objects
• K08U00C   2008 UC (arc=3 days, H=18.9 ~562m) from SSS (Oct. 21.56p1 & 22.55p1)
• Observations of recently (no longer) risk-listed objects
• K08T27D   2008 TD27 (arc=12 days, H=20.0 ~339m) from Desert Moon Obs. (Oct. 22.09-17p3) and the Spacewatch 1.8m telescope (Oct. 22.34-35p3)
• K08T25V   2008 TV25 (arc=13 days, H=20.0 ~339m) from Las Campanas Obs. (Oct. 22.34-35p10)
• K08T10R   2008 TR10 (arc=14 days, H=20.4 ~282m) from Spacewatch 1.8m (Oct. 22.39-40p3 at V=21.5-22.1)
• K08T04C   2008 TC4 (q=0.348 AU, arc=16 days, H=21.5 ~170m) from Schiaparelli Obs. (Oct. 19.89-90p5) and Astronomical Research Obs. (ARO) (Oct. 22.00-01p6)
• K08T03Z   2008 TZ3 (arc=16 days, H=20.3 ~295m) from Spacewatch 1.8m (Oct. 22.30p2)
• K08T02D   2008 TD2 (arc=19 days, H=21.6 ~162m) from Spacewatch 1.8m (Oct. 22.49-50p3)
• K08S85E   2008 SE85 (arc=24 days, H=19.6 ~407m) from Las Campanas Obs. (Oct. 22.32-33p10)
• K08S82H   2008 SH82 (arc=26 days, H=21.0 ~214m) from ARO (Oct. 22.01-04p3)
• K08S01U   2008 SU1 (arc=29 days, H=19.2 ~490m) from ARO (Oct. 22.01-02p5)
• K08R98M   2008 RM98 (Q=4.200 AU, arc=45 days, H=20.2 ~309m) from Spacewatch 1.8m (Oct. 22.10-11p3)
• Observations of small asteroids (H>22.0)
• K08U00U   2008 UU (Q=4.421 AU, arc=1 day, H=24.7 ~39m) from the Mt. Lemmon Survey (MLS) (Oct. 22.25-27p4)
• K08T26T   2008 TT26 (arc=14 days, H=23.5 ~68m) from Richard Miles via Faulkes Telescope North (Oct. 21.21-29p19, 22.27-29p6 & 22.51p2), North Obs. (Oct. 21.84-85p5), Santa Lucia Stroncone Obs. (Oct. 21.86-97p5), and Great Shefford Obs. (Oct. 22.94p3)
• K08T03X   2008 TX3 (arc=16 days, H=24.9 ~35m) from Schiaparelli Obs. (Oct. 20.02p2 & 20.07p2), Desert Moon Obs. (Oct. 22.34-35p3), and Tiki Obs. (Oct. 22.52-53p2)
• K08T01E   2008 TE1 (arc=2 days, H=25.4 ~28m) from Schiaparelli Obs. (Oct. 3.95-96p2)
• K08T00K   2008 TK (arc=14 days, H=23.6 ~65m) from Schiaparelli Obs. (Oct. 4.09-10p3)
• K08Q11W   2008 QW11 (arc=57 days, H=23.3 ~74m) from Spacewatch 1.8m (Oct. 22.44-46p3 at V=22.1)
• Observations of other objects
• K08U00X   2008 UX (q=0.264 AU, arc=1 day, H=20.8 ~234m) from MLS (Oct. 22.27p4 & 22.40p4) and Junk Bond Obs. (Oct. 22.28-31p2 & 22.35p1)
• K08TF7J   2008 TJ157 (Q=4.290 AU, arc=16 days, H=21.1 ~204m) from Jornada Obs. (Oct. 22.16-18p3) and Spacewatch 1.8m (Oct. 22.41-42p3)
• K08T26V   2008 TV26 (q=2.019 AU, arc=14 days, H=17.8 ~933m) from David Tholen's team on Mauna Kea (Oct. 21.47p2) and Tzec Maun Obs. Mayhill (Oct. 22.39-40p3)
• K08T09K   2008 TK9 (arc=12 days, H=19.8 ~371m) from Schiaparelli Obs. (Oct. 19.92p2 & 19.97-98p2)
• K08T04F   2008 TF4 (arc=14 days, H=19.4 ~446m) from Schiaparelli Obs. (Oct. 19.96-01p4)
• K08T04D   2008 TD4 (arc=13 days, H=19.7 ~389m) from Schiaparelli Obs. (Oct. 19.94p2 & 19.99p2)
• K08S07X   2008 SX7 (arc=31 days, H=18.5 ~676m) from SSS (Oct. 21.48p1) and ARO (Oct. 22.02-03p3)
• K08S01N   2008 SN1 (Q=4.025 AU, arc=32 days, H=19.6 ~407m) from Desert Moon Obs. (Oct. 22.31-32p3)
• K08R98G   2008 RG98 (arc=43 days, H=17.2 ~1.23 km) from Las Campanas Obs. (Oct. 22.13-16p9)
• K08Q03T   2008 QT3 (arc=58 days, H=18.6 ~645m) from ARO (Oct. 22.05p1)
• K08N00U   2008 NU (Q=4.202 AU, arc=113 days, H=17.5 ~1.07 km) from ARO (Oct. 22.06-07p2)
• K08M01H   2008 MH1 (Q=4.263 AU, arc=115 days, H=18.4 ~708m) from ARO (Oct. 22.03-04p3)
• K08J07Z   2008 JZ7 (Q=4.382 AU, arc=170 days, H=18.6 ~645m) from ARO (Oct. 22.04-06p3)
• K06B00G   2006 BG (arc=4 opp, H=18.6 ~645m) from the Spacewatch 0.9m telescope (Oct. 22.31-35p6)
• K05YC8Y   2005 YY128 (arc=4 opp, H=18.3 ~741m) from Spacewatch 0.9m (Oct. 22.25-28p6)
• K05W01D   2005 WD1 (i=43.1°, arc=3 opp, H=16.7 ~1.55 km) from SSS (Oct. 20.59-64p3 & 20.69-74p5)
• K04T11U   2004 TU11 (arc=2 opp, H=21.2 ~195m) from Spacewatch 1.8m (Oct. 22.46-47p3)
• K03O03A   2003 OA3 (arc=3 opp, H=19.6 ~407m) from Desert Moon Obs. (Oct. 22.40-47p3)
• K03G00W   2003 GW (i=49.4°, arc=3 opp, H=16.8 ~1.48 km) from SSS (Oct. 20.47-50p4)
• K01SR6G   2001 SG276 (arc=4 opp, H=17.7 ~977m) from Spacewatch 0.9m (Oct. 22.20-24p3)
• K01S10G   2001 SG10 (arc=5 opp, H=20.3 ~295m) from MLS (Oct. 22.37-39p4)
• G2004   162004 1991 VE from MLS (Oct. 22.49-50p4)
• E4901   144901 2004 WG1 from MLS (Oct. 22.32-34p4)
• E4900   144900 2004 VG64 from LINEAR (Oct. 22.36-41p5)
• E2348   142348 2002 RX211 from LINEAR (Oct. 22.31-36p5)
• E1765   141765 2002 MP3 from LINEAR (Oct. 22.43-47p5)
• D7799   137799 1999 YB from Spacewatch 0.9m (Oct. 19.31-34p3)
• 96744   96744 1999 OW3 from MLS (Oct. 22.32-34p4)
• 85774   85774 1998 UT18 from LINEAR (Oct. 22.36-40p4)
• 65733   65733 1993 PC from LINEAR (Oct. 22.15-18p4)
• 16960   16960 1998 QS52 from Thompsonville Obs. (Oct. 23.10p6)
• 09856   9856 1991 EE from Goodricke-Pigott Obs. (Oct. 21.34-35p2)
• 06178   6178 1986 DA from Spacewatch 0.9m (Oct. 19.38-40p2)
• 05131   5131 1990 BG from SSS (Oct. 21.57-60p3)
• 05011   5011 Ptah (6743 P-L) from SSS (Oct. 20.48-50p3)
• 04587   4587 Rees (3239 T-2) from LINEAR (Oct. 22.28-30p3)
• 04179   4179 Toutatis (1989 AC) from Jim Bedient via Faulkes Telescope North (Oct. 22.21-22p3)
• 04055   4055 Magellan (1985 DO2) from LINEAR (Oct. 22.42-47p5)
• 01620   1620 Geographos (1951 RA) from Thompsonville Obs. (Oct. 23.13-14p6)

MPEC 2008-U40 - "01:58 UT" - 2008 UM1

• K08U01M   2008 UM1 (risk-listed, Earth MOID=0.0 LD, H=32.1 ~1m) was discovered at 0927 UT on 22 Oct. by MLS, which observed it at Oct. 22.39-42p9. This object is now within ten lunar distances (LD) of Earth, reaching 0.2 LD on 22 Oct. (INTRUDER).

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Observers  on 23 October '08

A total of 21 observing facilities appear in today's MPECs.

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

Impact Risk Monitoring  on 23 October '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 23 October '08

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