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

Contents  on 14 April '08

• IAU Minor Planet Center
  • NEOCP Activity -- ten listings: 3 new, 7 updated
  • New MPECs -- six MPECs
• Observers -- twelve 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 14 April '08

The MPC's NEO Confirmation Page has 10 listings: 3 new, 7 updated

When last checked at 2358 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had three new and seven updated listings. All of these were "one nighters." So far The Tracking News has counted a total of fifteen 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 14 April '08

Minor Planet Electronic Circulars

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

• MPEC 2008-G77 time-stamped "06:09 UT" - Daily Orbit Update - see below
• MPEC 2008-G78 time-stamped "14:42 UT" - 2008 FN = 1995 JG1 - see below
• MPEC 2008-G79 time-stamped "15:52 UT" - 2008 GX21 - see below
• MPEC 2008-G80 time-stamped "15:57 UT" - 2008 GY21 - see below
• MPEC 2008-G81 time-stamped "18:33 UT" - 2006 HR122 - see below
• MPEC 2008-G82 time-stamped "18:49 UT" - 2006 HV122

MPEC 2008-G82 - "18:49 UT" - 2006 HV122

• K06HC2V   2006 HV122 (q=37.751 AU, Q=124.762 AU, H=6.1 ~204 km) from Las Campanas Obs. (2007 June 16.00p1, 2007 June 16.08p1, 2007 July 15.02p1 & 2007 July 16.05p1)

MPEC 2008-G81 - "18:33 UT" - 2006 HR122

• K06HC2R   2006 HR122 (q=38.955 AU, Q=85.937 AU, H=7.6 ~102 km) from Las Campanas Obs. (2007 July 11.00p1, 2007 July 12.08p1, 2007 July 14.99p1 & 2007 July 16.02p1)

MPEC 2008-G80 - "15:57 UT" - 2008 GY21

• K08G21Y   2008 GY21 (risk-listed, Earth MOID=0.5 LD, H=27.6 ~10m) was discovered at 0753 UT on 13 April by the Mt. Lemmon Survey (MLS), which observed it at April 13.27-35p8, 13.40-41p4, and 14.28-30p4. The discovery was confirmed by Farpoint Obs. (April 14.31-32p2) and the Spacewatch 1.8m telescope (April 14.32-33p2).

MPEC 2008-G79 - "15:52 UT" - 2008 GX21

• K08G21X   2008 GX21 (small asteroid, H=22.8 ~93m) was discovered at 0639 UT on 13 April by MLS, which observed it at April 13.28-35p7 and 14.28-30p4. The discovery was confirmed by Jim Young via Table Mtn. Obs. (April 14.25-27p4).

MPEC 2008-G78 - "14:42 UT" - 2008 FN = 1995 JG1

• K08F00N   2008 FN (i=44.7°, H=18.5 ~676m) from Powell Obs. (April 14.23-24p4)

<< DOU on 14 Apr. '08 >>  MPEC 2008-G77 - "06:09 UT" - Daily Orbit Update

• Observations of risk-listed objects
• K08G21B   2008 GB21 (small asteroid, arc=2 days, H=25.9 ~22m) from Spacewatch 1.8m (April 14.21p2)
• K08G20O   2008 GO20 (small asteroid, arc=5 days, H=22.3 ~117m) from Spacewatch 1.8m (April 14.19-20p2)
• K08G02M   2008 GM2 (small asteroid, arc=8 days, H=28.3 ~7m) from Spacewatch 1.8m (April 13.39-40p3 at V=22.0-22.2 & 14.22-23p2)
• Observations of recently (no longer) risk-listed objects
• K08F06W   2008 FW6 (arc=14 days, H=21.0 ~214m) from Desert Moon Obs. (April 13.25-29p3) and Spacewatch 1.8m (April 13.34p3)
• K08F06T   2008 FT6 (arc=15 days, H=17.6 ~1.02 km) from Desert Moon Obs. (April 13.33-39p3)
• K08F00N   2008 FN (i=44.8°, arc=17 days, H=18.4 ~708m) from Desert Moon Obs. (April 13.42-45p4)
• Observations of small asteroids (H>22.0)
• K08G02F   2008 GF2 (arc=8 days, H=24.0 ~54m) from Spacewatch 1.8m (April 13.27-28p3)
• Observations of almost-small asteroids (21.7<H<=22.0)
• K08G20W   2008 GW20 (arc=2 days, H=21.8 ~148m) from LINEAR (April 13.35-39p5)
• Observations of other objects
• K08G00X   2008 GX (arc=10 days, H=19.4 ~446m) from Desert Moon Obs. (April 13.17-21p3)
• K08F06U   2008 FU6 (arc=2 opp, H=17.9 ~891m) from LINEAR (April 13.40-45p5)
• K08F06N   2008 FN6 (arc=15 days, H=21.3 ~186m) from Altschwendt Obs. (April 13.95-98p4)
• K08C22B   2008 CB22 (arc=66 days, H=19.6 ~407m) from Spacewatch 1.8m (April 14.17-18p3)
• K06U00A   2006 UA (arc=2 opp, H=20.1 ~323m) from MLS (April 13.20-22p4)
• K06SJ8L   2006 SL198 (arc=2 opp, H=18.4 ~708m) from Spacewatch 1.8m (April 13.36-37p3)
• K06B55G   2006 BG55 (arc=3 opp, H=18.4 ~708m) from LINEAR (April 13.24-28p5)
• K05U64W   2005 UW64 (arc=3 opp, H=18.9 ~562m) from Spacewatch 1.8m (April 13.32p3)
• K05M01X   2005 MX1 (arc=2 opp, H=19.4 ~446m) from Spacewatch 1.8m (April 13.35-36p3)
• K05JA8U   2005 JU108 (arc=3 opp, H=19.7 ~389m) from the Spacewatch 0.9m telescope (April 13.20-24p3)
• K05G59E   2005 GE59 (arc=3 opp, H=18.0 ~851m) from Spacewatch 0.9m (April 13.21-24p3)
• K04G28D   2004 GD28 (Q=4.166 AU, arc=3 opp, H=17.3 ~1.17 km) from Spacewatch 1.8m (April 13.22p3)
• K04F32N   2004 FN32 (arc=4 opp, H=18.9 ~562m) from LINEAR (April 12.30-34p5 & 13.35-39p5)
• K04F31E   2004 FE31 (arc=4 opp, H=18.2 ~776m) from MLS (April 13.30-32p4)
• K03H42U   2003 HU42 (arc=4 opp, H=17.9 ~891m) from Spacewatch 0.9m (April 13.32-36p3)
• H9806   179806 2002 TD66 from LINEAR (April 13.14-17p3)
• H0891   170891 2004 TY16 from LINEAR (April 12.19-23p5)
• G8318   168318 1989 DA from Desert Moon Obs. (April 13.11-14p3)
• F4278   154278 2002 TB9 from Desert Moon Obs. (April 13.46-48p5)
• F3591   153591 2001 SN263 from the Catalina Sky Survey (CSS) (April 13.23-25p4)
• F2679   152679 1998 KU2 from Bill Dillon via RAS Obs. Mayhill (April 12.33-36p3) and LINEAR (April 13.24-28p5)
• D8205   138205 2000 EZ148 from MLS (April 13.15-17p4)
• D7170   137170 1999 HF1 from LINEAR (April 13.35-40p5)
• D6618   136618 1994 CN2 from MLS (April 13.15-17p4)
• A2873   102873 1999 WK11 from LINEAR (April 12.35-40p4)
• 85628   85628 1998 KV2 from MLS (April 13.48-49p3)
• 85236   85236 1993 KH from LINEAR (April 12.24-29p5)
• 53319   53319 1999 JM8 from CSS (April 13.40-42p4)
• 01864   1864 Daedalus (1971 FA) from MLS (April 13.15-17p4)

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

Observers  on 14 April '08

Twelve observing facilities appear in today's MPECs.

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

Impact Risk Monitoring  on 14 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 14 April '08

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