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Contents  on 28 May '08

• IAU Minor Planet Center
  • NEOCP Activity -- one listing: 1 updated
  • New MPECs -- six MPECs
• Observers -- fourteen 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 28 May '08

The MPC's NEO Confirmation Page has 1 listing: 1 updated

When last checked at 2101 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had one updated listing. This was a "one nighter." So far The Tracking News has counted a total of five 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 28 May '08

Minor Planet Electronic Circulars

As of last check at 2101 UTC, there have been six MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

• MPEC 2008-K44 time-stamped "06:07 UT" - Daily Orbit Update - see below
• MPEC 2008-K45 time-stamped "11:32 UT" - 2008 KP - see below
• MPEC 2008-K46 time-stamped "11:34 UT" - 2008 KQ - see below
• MPEC 2008-K47 time-stamped "12:24 UT" - 2008 KS - see below
• MPEC 2008-K48 time-stamped "15:46 UT" - 2008 KT - see below
• MPEC 2008-K49 time-stamped "16:58 UT" - 2002 KY14 = 2007 UL126

MPEC 2008-K49 - "16:58 UT" - 2002 KY14 = 2007 UL126

• K02K14Y   2002 KY14 from the SZTE Asteroid Program (SZTE) (May 28.03-05p2)

MPEC 2008-K48 - "15:46 UT" - 2008 KT

• K08K00T   2008 KT (risk-listed, Earth MOID=1.8 LD, H=28.3 ~7m) was discovered at 0606 UT on 28 May by the Mt. Lemmon Survey (MLS), which observed it at May 28.25-27p4 and 28.36p4. The discovery was confirmed by Mt. John Obs. (May 28.46-47p3 & 28.53-54p5). This object is now within ten lunar distances (LD) of Earth, reaching 3.3 LD on 4 June.

MPEC 2008-K47 - "12:24 UT" - 2008 KS

• K08K00S   2008 KS (small asteroid, H=24.7 ~39m) was discovered at 0755 UT on 28 May by MLS, which observed it at May 28.33-35p4 and 28.40p4. The discovery was confirmed by Mt. John Obs. (May 28.49p6).

MPEC 2008-K46 - "11:34 UT" - 2008 KQ

• K08K00Q   2008 KQ (H=20.5 ~269m) was discovered at 0915 UT on 27 May by the Spacewatch 0.9m telescope, which observed it at May 27.39-42p3. The discovery was confirmed by the Spacewatch 1.8m telescope (May 28.24-25p3 & 28.36p3) and Mt. John Obs. (May 28.37-38p3).

MPEC 2008-K45 - "11:32 UT" - 2008 KP

• K08K00P   2008 KP (i=62.7°, q=0.231 AU, H=18.8 ~589m) was discovered at 0643 UT on 27 May by MLS, which observed it at May 27.28-36p8 and 28.28-30p3. The discovery was confirmed by Spacewatch 1.8m (May 28.19p3), Sabino Canyon Obs. (May 28.28p2), Mt. John Obs. (May 28.34-35p4), and Jim Bedient via Faulkes Telescope North (May 28.37-39p3).

<< DOU on 28 May '08 >>  MPEC 2008-K44 - "06:07 UT" - Daily Orbit Update

• Observations of risk-listed objects
• K08K00O   2008 KO (small asteroid, arc=1 day, H=24.1 ~51m) from Spacewatch 1.8m (May 28.23-24p3)
• K08H04U   2008 HU4 (small asteroid, arc=27 days, H=28.4 ~7m) from Astronomical Research Obs. (ARO) (May 27.30-33p3 at V=22.1-3)
• Observations of small asteroids (H>22.0)
• K08J26S   2008 JS26 (arc=13 days, H=23.6 ~65m) from ARO (May 27.26-27p3)
• K08J14R   2008 JR14 (arc=21 days, H=25.1 ~32m) from ARO (May 27.22-25p3)
• K08G20U   2008 GU20 (arc=46 days, H=23.1 ~81m) from ARO (May 27.15-18p3 at V=21.9-22.2)
• K08G03R   2008 GR3 (arc=50 days, H=25.0 ~34m) from ARO (May 27.34-35p3)
• K08E84X   2008 EX84 (arc=76 days, H=22.3 ~117m) from ARO (May 27.26-29p3 at V=22.4-5)
• K08E07Q   2008 EQ7 (arc=82 days, H=22.6 ~102m) from ARO (May 27.30-32p3)
• Observations of other objects
• K08J20M   2008 JM20 (arc=17 days, H=20.9 ~224m) from ARO (May 27.19-21p3)
• K08J19T   2008 JT19 (arc=20 days, H=20.0 ~339m) from ARO (May 27.19-21p3)
• K08J14P   2008 JP14 (arc=27 days, H=19.4 ~446m) from ARO (May 27.24-25p3) and Naef Obs. (May 27.88-90p6)
• K08J00J   2008 JJ (i=44.6°, arc=27 days, H=19.2 ~490m) from ARO (May 27.28-29p3) and MLS (May 27.44-45p4)
• K08J00G   2008 JG (arc=26 days, H=20.8 ~234m) from ARO (May 27.22-23p3) and Spacewatch 1.8m (May 27.34-35p3)
• K08H04V   2008 HV4 (arc=27 days, H=19.4 ~446m) from Desert Moon Obs. (May 27.23-28p3)
• K08H03S   2008 HS3 (arc=27 days, H=21.6 ~162m) from Green Island Obs. (May 26.76p1 & 26.82p1) and ARO (May 27.25p3)
• K08E06L   2008 EL6 (arc=83 days, H=21.1 ~204m) from Spacewatch 1.8m (May 27.40-41p3 at V=22.1-3)
• K08B18T   2008 BT18 (arc=3 opp, H=18.3 ~741m) from Heath Rhoades via Table Mtn. Obs. (May 23.17-19p5)
• K08A33M   2008 AM33 (arc=133 days, H=21.3 ~186m) from Desert Moon Obs. (May 27.31p1)
• K07W04V   2007 WV4 (i=38.3°, arc=2 opp, H=19.3 ~467m) from Spacewatch 1.8m (May 27.37-38p3)
• K07V04Q   2007 VQ4 (arc=3 opp, H=16.1 ~2.04 km, q=1.271 AU) from Green Island Obs. (May 26.75p1 & 26.82p1)
• K05V05T   2005 VT5 (arc=2 opp, H=19.2 ~490m) from ARO (May 27.37-39p4)
• K05N07B   2005 NB7 (arc=3 opp, H=18.7 ~616m) from Green Island Obs. (May 26.76p1 & 26.83p1) and LINEAR (May 27.27-29p3)
• K04O00B   2004 OB (arc=3 opp, H=18.9 ~562m) from Spacewatch 0.9m (May 27.29-31p2)
• K03K02O   2003 KO2 (q=0.356 AU, arc=4 opp, H=20.2 ~309m) from ARO (May 27.32-33p3)
• K02J00C   2002 JC (i=40.9°, arc=6 opp, H=17.3 ~1.17 km) from Green Island Obs. (May 26.77-81p2)
• K02A29F   2002 AF29 (Q=5.239 AU, arc=2 opp, H=19.2 ~490m) from Spacewatch 0.9m (May 27.27-31p3)
• D9289   139289 2001 KR1 from LINEAR (May 27.25-30p5)
• 85628   85628 1998 KV2 from Spacewatch 0.9m (May 27.28-32p3)
• 53319   53319 1999 JM8 from LINEAR (May 27.37-41p5)
• 35107   35107 1991 VH from Malaga Obs. (May 26.91-92p4)
• 16912   16912 Rhiannon (1998 EP8) from ARO (May 27.36-38p3)
• 07350   7350 1993 VA from LINEAR (May 27.15-18p3)
• 07092   7092 Cadmus (1992 LC) from LINEAR (May 27.15-20p5)

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Observers  on 28 May '08

Fourteen observing facilities appear in today's MPECs.

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Impact Risk Monitoring  on 28 May '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 28 May '08

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