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Contents  on 15 March '08

• IAU Minor Planet Center
  • NEOCP Activity -- four listings: 4 updated
  • New MPECs -- fourteen MPECs
• Observers -- twelve observing facilities
• Impact Risk Monitoring -- six 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 15 March '08

The MPC's NEO Confirmation Page has 4 listings: 4 updated

When last checked at 2358 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had four updated listings. All of these were "one nighters." So far The Tracking News has counted a total of 29 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 15 March '08

Minor Planet Electronic Circulars

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

• MPEC 2008-E115 time-stamped "04:05 UT" - 2008 EZ84 - see below
• MPEC 2008-E116 time-stamped "06:09 UT" - Daily Orbit Update - see below
• MPEC 2008-E117 time-stamped "11:33 UT" - 2008 EB85 - see below
• MPEC 2008-E118 time-stamped "11:36 UT" - 2008 EC85 - see below
• MPEC 2008-E119 time-stamped "11:42 UT" - 2008 ED85 - see below
• MPEC 2008-E120 time-stamped "11:49 UT" - 2008 EE85 - see below
• MPEC 2008-E121 time-stamped "11:52 UT" - 2008 EF85 - see below
• MPEC 2008-E122 time-stamped "11:55 UT" - 2008 EG85 - see below
• MPEC 2008-E123 time-stamped "11:59 UT" - 2008 EH85 - see below
• MPEC 2008-E124 time-stamped "12:02 UT" - 2008 EJ85 - see below
• MPEC 2008-E125 time-stamped "12:04 UT" - 2008 EK85 - see below
• MPEC 2008-E126 time-stamped "12:07 UT" - 2008 EL85 - see below
• MPEC 2008-E127 time-stamped "12:10 UT" - 2008 EM85 - see below
• MPEC 2008-E128 time-stamped "13:52 UT" - 2008 EP85

MPEC 2008-E128 - "13:52 UT" - 2008 EP85

• K08E85P   2008 EP85 (i=47.9°, H=21.7 ~155m) was discovered at 0903 UT on 14 March by the Mt. Lemmon Survey (MLS), which observed it at March 14.38-43p8 and 15.23p3.

MPEC 2008-E127 - "12:10 UT" - 2008 EM85

• K08E85M   2008 EM85 (H=19.5 ~426m) was discovered at 0854 UT on 14 March by LINEAR, which observed it at March 14.37-42p4. The discovery was confirmed by MLS (March 15.45p4).

MPEC 2008-E126 - "12:07 UT" - 2008 EL85

• K08E85L   2008 EL85 (small asteroid, Earth MOID=1.6 LD, H=25.6 ~26m) was discovered at 0525 UT on 14 March by LINEAR, which observed it at March 14.23-26p4. The discovery was confirmed by MLS (March 15.26p4) and Sabino Canyon Obs. (March 15.34-35p3).

MPEC 2008-E125 - "12:04 UT" - 2008 EK85

• K08E85K   2008 EK85 (small asteroid, Earth MOID=4.3 LD, H=28.4 ~7m) was discovered at 0522 UT on 14 March by LINEAR, which observed it at March 14.22-26p4. The discovery was confirmed by MLS (March 15.27p4) and Sabino Canyon Obs. (March 15.35p2). This object is now within ten lunar distances (LD) of Earth, reaching 4.4 LD on 15 March.

MPEC 2008-E124 - "12:02 UT" - 2008 EJ85

• K08E85J   2008 EJ85 (small asteroid, Earth MOID=0.7 LD, H=25.2 ~31m) was discovered at 0508 UT on 14 March by LINEAR, which observed it at March 14.21-26p5. The discovery was confirmed by MLS (March 15.25p8) and Sabino Canyon Obs. (March 15.30-31p3). This object is now within ten lunar distances (LD) of Earth, reaching 7.0 LD on 15 March.

MPEC 2008-E123 - "11:59 UT" - 2008 EH85

• K08E85H   2008 EH85 (risk-listed, H=23.8 ~59m) was discovered at 1026 UT on 13 March by MLS, which observed it at March 13.37-44p8 at V=20.4-21.1, 14.36p8 at V=21.0-21.6, and 15.24p4 at V=20.9-22.3.

MPEC 2008-E122 - "11:55 UT" - 2008 EG85

• K08E85G   2008 EG85 (small asteroid, H=25.0 ~34m) was discovered at 0729 UT on 13 March by LINEAR, which observed it at March 13.31-36p5. The discovery was confirmed by MLS (March 15.41-42p3).

MPEC 2008-E121 - "11:52 UT" - 2008 EF85

• K08E85F   2008 EF85 (small asteroid, Earth MOID=4.8 LD, H=26.8 ~15m) was discovered at 0728 UT on 13 March by LINEAR, which observed it at March 13.31-36p4. The discovery was confirmed by MLS (March 15.43-44p4).

MPEC 2008-E120 - "11:49 UT" - 2008 EE85

• K08E85E   2008 EE85 (small asteroid, Earth MOID=3.2 LD, H=22.3 ~117m) was discovered at 0720 UT on 13 March by LINEAR, which observed it at March 13.31-35p5. The discovery was confirmed by Modra Obs. (March 15.08-10p4), MLS (March 15.27p4), and Sabino Canyon Obs. (March 15.36p3).

MPEC 2008-E119 - "11:42 UT" - 2008 ED85

• K08E85D   2008 ED85 (small asteroid, Earth MOID=1.6 LD, H=29.9 ~4m) was discovered at 0716 UT on 13 March by MLS, which observed it at March 13.30-32p8 and 13.41p4. This object is now within ten lunar distances (LD) of Earth, reaching 1.7 LD on 14 March.

MPEC 2008-E118 - "11:36 UT" - 2008 EC85

• K08E85C   2008 EC85 (i=55.9°, Q=5.574 AU, H=21.0 ~214m) was discovered at 0657 UT on 13 March by MLS, which observed it at March 13.29-32p8 at V=19.6-20.5, 13.41p4 at V=19.3-20.4, 14.32p4 at V=20.2-21.3, and 15.17-19p7 at V=21.0-22.2. The discovery was confirmed by the Spacewatch 1.8m telescope (March 15.16-17p2).

MPEC 2008-E117 - "11:33 UT" - 2008 EB85

• K08E85B   2008 EB85 (small asteroid, H=23.7 ~62m) was discovered at 0623 UT on 13 March by MLS, which observed it at March 13.27-30p8, 13.40-41p4, 14.27-29p8, and 15.16p2.

<< DOU on 15 Mar. '08 >>  MPEC 2008-E116 - "06:09 UT" - Daily Orbit Update

• Observations of risk-listed objects
• K08E05X   2008 EX5 (small asteroid, arc=11 days, H=23.8 ~59m) from Spacewatch 1.8m (March 15.20-21p3)
• K08A04F   2008 AF4 (arc=65 days, H=19.7 ~389m) from Spacewatch 1.8m (March 15.11-12p3)
• Observations of recently (no longer) risk-listed objects
• K08E06N   2008 EN6 (arc=6 days, H=19.2 ~490m) from Astronomical Research Obs. (ARO) (March 11.13-15p3)
• Observations of small asteroids (H>22.0)
• K08E84X   2008 EX84 (arc=3 days, H=22.3 ~117m) from Junk Bond Obs. (March 14.31-36p5)
• Observations of other objects
• K08E06O   2008 EO6 (arc=10 days, H=19.6 ~407m) from Naef Obs. (March 14.97-01p3)
• K08C22B   2008 CB22 (arc=35 days, H=19.6 ~407m) from the Catalina Sky Survey (CSS) (March 14.41-44p4)
• K06D62U   2006 DU62 (arc=3 opp, H=18.0 ~851m) from CSS (March 14.20-22p4)
• K06B55G   2006 BG55 (arc=3 opp, H=18.2 ~776m) from CSS (March 13.32-35p4 & 14.41-44p4)
• K04RA9Y   2004 RY109 (arc=3 opp, H=19.0 ~537m) from MLS (March 14.38-41p4)
• K03Q30Z   2003 QZ30 (arc=4 opp, H=17.4 ~1.12 km) from the Spacewatch 0.9m telescope (March 12.40-43p3)
• K03D14C   2003 DC14 (Q=4.510 AU, arc=3 opp, H=16.6 ~1.62 km) from Inastars Obs. (March 14.92-93p4)
• K00X44K   2000 XK44 (arc=3 opp, H=18.6 ~645m) from CSS (March 13.32-35p4)
• H0891   170891 2004 TY16 from CSS (March 14.14-16p2)
• E4922   144922 2005 CK38 from CSS (March 13.19-21p4)
• 85628   85628 1998 KV2 from LINEAR (March 14.43-48p4)
• 21088   21088 1992 BL2 from BDI Obs. (March 8.46p1, 8.52p1 & 10.45-49p2)
• 05587   5587 1990 SB from CSS (March 14.20-22p4)
• 03552   3552 Don Quixote (1983 SA) from MLS (March 14.38-41p4) and CSS (March 14.38-40p4)

MPEC 2008-E115 - "04:05 UT" - 2008 EZ84

• K08E84Z   2008 EZ84 (risk-listed, Earth MOID=0.4 LD, H=26.2 ~19m) was discovered at 1019 UT on 12 March by CSS, which observed it at March 12.43-51p12 and 13.44-45p3. The discovery was confirmed by Modra Obs. (March 15.12-13p2). This object is now within ten lunar distances (LD) of Earth, reaching 9.5 LD on 15 March.

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Observers  on 15 March '08

Twelve observing facilities appear in today's MPECs.

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

Impact Risk Monitoring  on 15 March '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 15 March '08

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