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Contents  on 30 July '08

• IAU Minor Planet Center
  • NEOCP Activity -- 18 listings: 6 new, 12 updated
  • New MPECs -- five MPECs
• Observers -- sixteen observing facilities
• Impact Risk Monitoring -- three 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.

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NEOCP Activity  on 30 July '08

The MPC's NEO Confirmation Page has 18 listings: 6 new, 12 updated

When last checked at 2357 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had six new and twelve updated listings. Of these, fourteen were "one nighters." So far The Tracking News has counted a total of 22 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 30 July '08

Minor Planet Electronic Circulars

As of last check at 2357 UTC, there have been five MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

• MPEC 2008-O48 time-stamped "03:36 UT" - 2006 SG369 - see below
• MPEC 2008-O49 time-stamped "06:08 UT" - Daily Orbit Update - see below
• MPEC 2008-O50 time-stamped "14:41 UT" - 2008 OA6 - see below
• MPEC 2008-O51 time-stamped "14:43 UT" - 2008 OB6 - see below
• MPEC 2008-O52 time-stamped "15:04 UT" - 2008 OC6

MPEC 2008-O52 - "15:04 UT" - 2008 OC6

• K08O06C   2008 OC6 (IEO, q=0.378 AU, Q=0.912 AU, H=18.7 ~616m) was discovered at 1103 UT on 29 July by the Mt. Lemmon Survey (MLS), which observed it at July 29.46-48p7 and 30.46-48p4.

MPEC 2008-O51 - "14:43 UT" - 2008 OB6

• K08O06B   2008 OB6 (i=49.6°, H=19.6 ~407m) was discovered at 0729 UT on 29 July by the Spacewatch 0.9m telescope, which observed it at July 29.31-35p3, 29.43p3, and 30.33-34p3. The discovery was confirmed by Astronomical Research Obs. (ARO) (July 29.39-40p3) and MLS (July 30.34-35p4 & 30.40-42p4).

MPEC 2008-O50 - "14:41 UT" - 2008 OA6

• K08O06A   2008 OA6 (small asteroid, H=22.8 ~93m) was discovered at 0611 UT on 29 July by Spacewatch 0.9m, which observed it at July 29.26-29p3 and 29.44-45p3. The discovery was confirmed by ARO (July 29.35-36p3) and MLS (July 30.34-35p4).

<< DOU on 30 July '08 >>  MPEC 2008-O49 - "06:08 UT" - Daily Orbit Update

• Observations of risk-listed objects
• K08O02Y   2008 OY2 (small asteroid, Q=4.249 AU, arc=1 day, H=27.4 ~11m) from ARO (July 29.18-19p4) and Great Shefford Obs. (July 29.96p3)
• K08O02X   2008 OX2 (q=0.373 AU, arc=1 day, H=20.1 ~323m) from ARO (July 29.26-27p3)
• K08O00O   2008 OO (arc=3 days, H=19.7 ~389m) from Stia Obs. (July 28.91-92p3) and MLS (July 29.29-31p4)
• Observations of small asteroids (H>22.0)
• K08O00M   2008 OM (arc=4 days, H=22.4 ~112m) from MLS (July 29.32-33p4)
• K08N00X   2008 NX (arc=27 days, H=25.0 ~34m) from MLS (July 29.41-42p4)
• Observations of other objects
• K08O02V   2008 OV2 (arc=1 day, H=20.3 ~295m) from ARO (July 29.20-21p3)
• K08O01X   2008 OX1 (arc=3 days, H=21.4 ~178m) from Moriyama Obs. (July 29.58-59p3), Hamamatsu-Yuto Obs. (July 29.63-66p6), Santa Mama Obs. (July 29.93-95p11), and El Guijo Obs. (July 30.01-03p3)
• K08N01S   2008 NS1 (Q=4.329 AU, arc=23 days, H=17.3 ~1.17 km) from the Siding Spring Survey (SSS) (July 28.46-47p4)
• K08M01U   2008 MU1 (i=40.8°, arc=28 days, H=19.7 ~389m) from Stia Obs. (July 28.84-85p4) and Dresden Obs. (July 28.87-89p3)
• K08H03O   2008 HO3 (Q=4.799 AU, arc=91 days, H=18.0 ~851m) from MLS (July 29.19-20p4)
• K08H03E   2008 HE3 (Q=4.479 AU, arc=92 days, H=19.0 ~537m) from MLS (July 29.15-17p4)
• K06WC7O   2006 WO127 (arc=3 opp, H=16.1 ~2.04 km, q=0.991 AU) from MLS (July 29.23-24p4)
• K06A00Q   2006 AQ (arc=4 opp, H=18.0 ~851m) from ARO (July 27.21-23p3) and MLS (July 29.37-38p4)
• K05R34C   2005 RC34 (arc=2 opp, H=19.7 ~389m) from Hamamatsu-Yuto Obs. (July 29.54-55p2 & 29.60-62p7)
• I8452   188452 2004 HE62 from Thompsonville Obs. (July 29.19-20p3)
• H4050   174050 2002 CC19 from Santa Mama Obs. (July 29.89-91p9)
• H3689   173689 2001 PK9 from Stia Obs. (July 28.88-89p4) and Spacewatch 0.9m (July 29.21-24p3)
• G2980   162980 2001 RR17 from MLS (July 29.17-18p4)
• G2900   162900 2001 HG31 from SSS (July 28.81-82p4)
• G2186   162186 1999 OP3 from the Catalina Sky Survey (CSS) (July 28.31-39p8)
• 96744   96744 1999 OW3 from CSS (July 28.43-45p4)
• 90403   90403 2003 YE45 from Hamamatsu-Yuto Obs. (July 29.50p3) and Santa Mama Obs. (July 29.85-86p9)
• 90075   90075 2002 VU94 from CSS (July 29.41-43p4)
• 85640   85640 1998 OX4 from MLS (July 29.43-44p4)
• 35107   35107 1991 VH from Thompsonville Obs. (July 29.23p6) and Santa Mama Obs. (July 29.82-83p9)
• 11398   11398 1998 YP11 from Thompsonville Obs. (July 29.13-14p6) and LINEAR (July 29.22-26p5)
• 08567   8567 1996 HW1 from Thompsonville Obs. (July 29.14-15p6) and El Guijo Obs. (July 30.04-05p3)
• 07889   7889 1994 LX from Thompsonville Obs. (July 29.22p6)
• 07482   7482 1994 PC1 from Thompsonville Obs. (July 29.25p6)
• 05751   5751 Zao (1992 AC) from SSS (July 28.65-68p4)
• 04179   4179 Toutatis (1989 AC) from Thompsonville Obs. (July 29.17p6)
• 02201   2201 Oljato (1947 XC) from MLS (July 29.46-48p4)
• 02102   2102 Tantalus (1975 YA) from CSS (July 29.16-18p4)
• 01917   1917 Cuyo (1968 AA) from Thompsonville Obs. (July 29.18p6)
• 01916   1916 Boreas (1953 RA) from MLS (July 29.45-46p4)
• 01620   1620 Geographos (1951 RA) from CSS (July 29.41-43p4)

MPEC 2008-O48 - "03:36 UT" - 2006 SG369

• K06Sa9G   2006 SG369 (q=30.140 AU, Q=65.341 AU, H=7.7 ~97.7 km) from Las Campanas Obs. (2007 July 12.36p1 & 2007 July 12.44p1) and Apache Point Obs. (2007 Sept. 4.40p2 at V=22.1-7, 2007 Sept. 14.38p2 at V=22.8-23.8, 2007 Sept. 19.43p2 at V=22.6-23.6, 2007 Sept. 22.41p2 at V=22.6-23.8, 2007 Oct. 8.42-43p2 at V=22.6-23.8, 2007 Oct. 12.42-43p2 at V=22.3-23.6, 2007 Nov. 5.33p2 at V=22.9-24.2, 2007 Nov. 8.35-36p2 at V=22.4-23.7 & 2007 Nov. 17.33p2 at V=22.2-23.1)

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Observers  on 30 July '08

Sixteen observing facilities appear in today's MPECs.

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Impact Risk Monitoring  on 30 July '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 30 July '08

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