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

Contents  on 5 April '08

• IAU Minor Planet Center
  • NEOCP Activity -- twelve listings: 3 new, 9 updated
  • New MPECs -- five MPECs
• Observers -- thirteen observing facilities
• Impact Risk Monitoring -- five 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 5 April '08

The MPC's NEO Confirmation Page has 12 listings: 3 new, 9 updated

When last checked at 2355 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had three new and nine updated listings. Of these, eight were "one nighters." So far The Tracking News has counted a total of sixteen 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 5 April '08

Minor Planet Electronic Circulars

As of last check at 2355 UTC, there have been five MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

• MPEC 2008-G25 time-stamped "06:08 UT" - Daily Orbit Update - see below
• MPEC 2008-G26 time-stamped "11:29 UT" - 2008 GD1 - see below
• MPEC 2008-G27 time-stamped "11:32 UT" - 2008 GE1 - see below
• MPEC 2008-G28 time-stamped "11:59 UT" - 2008 GF1 - see below
• MPEC 2008-G29 time-stamped "20:15 UT" - 2005 GY8 = 2008 FG5

MPEC 2008-G29 - "20:15 UT" - 2005 GY8 = 2008 FG5

• K05G08Y   2005 GY8 (borderline-small, Earth MOID=1.0 LD, H=21.8 ~148m)

MPEC 2008-G28 - "11:59 UT" - 2008 GF1

• K08G01F   2008 GF1 (small asteroid, Earth MOID=0.3 LD, H=28.3 ~7m) was discovered at 0720 UT on 5 April by the Mt. Lemmon Survey (MLS), which observed it at April 5.31-38p8. The discovery was confirmed by Farpoint Obs. (April 5.41-42p3). This object is now within ten lunar distances (LD) of Earth, reaching 1.2 LD on 8 April.

MPEC 2008-G27 - "11:32 UT" - 2008 GE1

• K08G01E   2008 GE1 (H=19.4 ~446m) was discovered at 0912 UT on 4 April by MLS, which observed it at April 4.38-40p4, 4.47-49p3, and 5.36-39p4. The discovery was confirmed by Farpoint Obs. (April 5.38-39p3) and the Spacewatch 1.8m telescope (April 5.43p3).

MPEC 2008-G26 - "11:29 UT" - 2008 GD1

• K08G01D   2008 GD1 (small asteroid, H=22.5 ~107m) was discovered at 0644 UT on 3 April by MLS, which observed it at April 3.28-33p7 and 5.30-31p3. The discovery was confirmed by Spacewatch 1.8m (April 5.30-32p3).

<< DOU on 5 Apr. '08 >>  MPEC 2008-G25 - "06:08 UT" - Daily Orbit Update

• Observations of risk-listed objects
• K08G00K   2008 GK (small asteroid, arc=2 days, H=23.5 ~68m) from Consell Obs. (April 4.94-95p5)
• K08G00J   2008 GJ (arc=3 days, H=20.5 ~269m) from Spacewatch 1.8m (April 4.27-28p3)
• K08G00H   2008 GH (small asteroid, Q=4.688 AU, arc=3 days, H=23.8 ~59m) from Spacewatch 1.8m (April 4.23-24p3)
• K08F07K   2008 FK7 (small asteroid, arc=4 days, H=23.1 ~81m) from Spacewatch 1.8m (April 4.31p2)
• K08F05F   2008 FF5 (small asteroid, q=0.080 AU, Q=4.438 AU, arc=7 days, H=23.1 ~81m) from Astronomical Research Obs. (ARO) (April 2.30-32p3)
• K08F00N   2008 FN (i=44.8°, arc=9 days, H=18.5 ~676m) from Spacewatch 1.8m (April 4.32-33p3), McDonald Obs. (April 4.45-46p3), Suno Obs. (April 5.02p2), and Consell Obs. (April 5.03-04p6)
• K08E07R   2008 ER7 (arc=30 days, H=20.0 ~339m) from Spacewatch 1.8m (April 5.22-23p3)
• K08A04F   2008 AF4 (arc=86 days, H=19.7 ~389m) from Farpoint Obs. (April 5.22-23p2)
• Observations of recently (no longer) risk-listed objects
• K08G00F   2008 GF (arc=2 days, H=20.6 ~257m) from ARO (April 3.24-25p3)
• K08F07L   2008 FL7 (small asteroid, arc=3 days, H=24.4 ~45m) from ARO (April 3.31-32p3)
• K08F06W   2008 FW6 (arc=4 days, H=20.9 ~224m) from ARO (April 2.29p3 & 3.28p3)
• K08E97Z   2008 EZ97 (arc=20 days, H=17.9 ~891m) from Jim Young via Table Mtn. Obs. (April 4.49-51p4)
• K08E69D   2008 ED69 (i=36.3°, Q=5.047 AU, arc=24 days, H=16.8 ~1.48 km) from McDonald Obs. (April 4.43-44p3)
• K08E07M   2008 EM7 (arc=30 days, H=21.2 ~195m) from Spacewatch 1.8m (April 5.17-18p3)
• K08E00H   2008 EH (small asteroid, arc=33 days, H=22.8 ~93m) from ARO (April 3.13-15p4)
• Observations of small asteroids (H>22.0)
• K08G00V   2008 GV (Q=4.276 AU, arc=2 days, H=23.2 ~78m) from Consell Obs. (April 4.96p4) and Great Shefford Obs. (April 4.98p3)
• K08G00E   2008 GE (arc=1 day, H=23.3 ~74m) from ARO (April 2.33-34p2)
• K08F07J   2008 FJ7 (arc=3 days, H=25.9 ~22m) from ARO (April 2.34-35p3 & 3.26-27p3)
• K08F06S   2008 FS6 (arc=6 days, H=22.4 ~112m) from Young/Table Mtn. (April 4.48-49p4)
• K08F00O   2008 FO (arc=7 days, H=23.2 ~78m) from ARO (April 2.26p3 & 3.22-23p3)
• K08F00B   2008 FB (arc=10 days, H=23.4 ~71m) from ARO (April 2.36-37p3)
• K08E07Q   2008 EQ7 (arc=28 days, H=22.6 ~102m) from ARO (April 3.29-30p3)
• Observations of almost-small asteroids (21.7<H<=22.0)
• K08F05G   2008 FG5 (arc=6 days, H=22.0 ~135m) from ARO (April 3.28p3) and Spacewatch 1.8m (April 4.39-40p3)
• Observations of other objects
• K08G00X   2008 GX (arc=2 days, H=19.3 ~467m) from Suno Obs. (April 4.94-96p3)
• K08G00D   2008 GD (q=0.265 AU, arc=2 days, H=19.8 ~371m) from ARO (April 2.28p3 & 3.24-25p3)
• K08F06U   2008 FU6 (arc=6 days, H=17.9 ~891m) from McDonald Obs. (April 4.42p3)
• K08E09B   2008 EB9 (arc=28 days, H=20.4 ~282m) from Spacewatch 1.8m (April 5.14p3)
• K08E06O   2008 EO6 (arc=30 days, H=19.6 ~407m) from LINEAR (April 4.27-30p3)
• K08E00E   2008 EE (arc=33 days, H=19.6 ~407m) from ARO (April 3.11-13p3)
• K08D00Y   2008 DY (Q=4.349 AU, arc=37 days, H=20.9 ~224m) from ARO (April 3.33-34p3)
• K08CB6S   2008 CS116 (Q=4.556 AU, arc=142 days, H=20.8 ~234m) from ARO (April 3.22-23p3)
• K08CB6O   2008 CO116 (arc=52 days, H=21.1 ~204m) from ARO (April 3.11-14p3 at V=22.3-4)
• K08C21Z   2008 CZ21 (arc=55 days, H=20.2 ~309m) from ARO (April 3.05-08p3 at V=22.2-3)
• K08C00H   2008 CH (arc=62 days, H=20.2 ~309m) from ARO (April 3.16-19p3 at V=22.1-3)
• K08B22C   2008 BC22 (arc=84 days, H=19.8 ~371m) from the Catalina Sky Survey (CSS) (April 4.32-33p3)
• K07V07Y   2007 VY7 (arc=3 opp, H=19.5 ~426m) from McDonald Obs. (April 4.40-41p3)
• K07V04Q   2007 VQ4 (arc=3 opp, H=15.9 ~2.24 km, q=1.271 AU) from Hamamatsu-Yuto Obs. (April 4.61-65p10)
• K03G00W   2003 GW (i=49.4°, arc=3 opp, H=16.7 ~1.55 km) from Hamamatsu-Yuto Obs. (April 4.57-58p3)
• K02T55W   2002 TW55 (i=59.4°, arc=4 opp, H=18.0 ~851m) from ARO (April 2.38-40p3)
• K00DA7P   2000 DP107 (arc=6 opp, H=18.2 ~776m) from McDonald Obs. (April 4.11-13p3)
• H9806   179806 2002 TD66 from CSS (April 4.22-23p4)
• D7170   137170 1999 HF1 from LINEAR (April 4.37-41p5)
• 86667   86667 2000 FO10 from CSS (April 4.40-42p4)
• 68063   68063 2000 YJ66 from MLS (April 4.17-19p4)
• 35107   35107 1991 VH from LINEAR (April 4.36-40p5)
• 34613   34613 2000 UR13 from MLS (April 4.17-19p4)
• 11054   11054 1991 FA from the Spacewatch 0.9m telescope (April 4.36-39p3)
• 07889   7889 1994 LX from LINEAR (April 4.42-45p4)
• 03552   3552 Don Quixote (1983 SA) from Spacewatch 0.9m (April 4.19-22p3)

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

Observers  on 5 April '08

Thirteen observing facilities appear in today's MPECs.

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

Impact Risk Monitoring  on 5 April '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.

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

Chronology  on 5 April '08

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