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Contents  on 21 May '07

• Minor-Object News -- four items
• Minor-Object Science -- two papers
• IAU Minor Planet Center
  • NEOCP Activity -- nine listings: 6 new, 3 updated
  • New MPECs -- three MPECs
  • Observers -- sixteen observing facilities
• Impact Risk Monitoring -- nothing to report
• Chronology

WELCOME to A/CC's prototype daily news publication designed to be the viewing end of a planned autonomous 24-hour news service. The new tools and this publication format are working well enough now to share with readers. It is expected that this approach will require less time to maintain than our previous news and small asteroid pages, which were retired on May 14th. There's still more development ahead and there probably will be some glitches along the way, but this is what's needed to keep up with the increasing pace of minor-object news. The CRT page will be maintained separately for a little while longer, until all of this is working smoothly. And the CRT and small-asteroid ephemerides will be kept going.

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Minor-Object News  on 21 May '07

• "Made in Rochester: At Optimax, business is heavenly," Rochester Democrat & Chronicle 20 May - Quote: "[One] of the company's specialized lenses was launched on NASA's New Horizons mission to Pluto [that will] continue on to become one of the few manmade objects to leave the solar system."
• "NASA Rededicates Flying Observatory on Lindbergh Anniversary," NASA 21 May - Quote: "This project is a fantastic blend of a 20th century legacy aircraft and a 21st century platform for exploration."
• "Ice Age blast 'ravaged America'," BBC 21 May - Quote: "The blast, from a comet or asteroid, caused a major bout of climatic cooling which may also have affected human cultures emerging in Europe and Asia."
• Horizons: JPL's Horizons System News for has an advisory on 18 May for those using the system to generate data tables for 99942 Apophis after that asteroid's 2029 close encounter with Earth.

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Minor-Object Science  on 21 May '07

• "Evidence for a colour dependence in the size-distribution of main-belt asteroids" by Wiegert, Paul with David Balam, Andrea Moss & 3 others, PDF from Paul Weigert April 2007 - Quote: "We present the results of a project to detect small (~1 km) main-belt asteroids with the 3.6 m Canada-France-Hawaii Telescope [and] conclude that the size distribution of main-belt asteroids is likely to be color-dependent at kilometer sizes and that this dependence may vary across the belt."
• "Spitzer observations of a 24 micron shadow: Bok Globule CB190" by Stutz, Amelia M. with John H. Bieging, George H. Rieke & 8 others, abstract & PDF at arXiv.org 17 May - Quote: "[It] is likely that CB190 is collapsing or in a late pre-collapse stage."

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NEOCP Activity  on 21 May '07

The MPC's NEO Confirmation Page has 9 listings: 6 new, 3 updated

When last checked at 2355 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had six new and three updated listings. Of these, six were "one nighters." Major News counted a total of ten objects listed on the NEOCP at some point on this day.

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New MPECs  on 21 May '07

Minor Planet Electronic Circulars

There were three MPECs issued this day from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

• MPEC 2007-K29 time-stamped "02:41 UT" - 2006 SX368 - see below
• MPEC 2007-K30 time-stamped "03:30 UT" - Comet P/2007 H1 (McNaught) - see below
• MPEC 2007-K31 time-stamped "06:07 UT" - Daily Orbit Update

<< DOU on 21 May '07 >>  MPEC 2007-K31 - "06:07 UT" - Daily Orbit Update

• K07K00J   2007 KJ (arc=4 days, H=18.9 ~562m) from KLENOT (May 19.96p4)
• K07J40E   2007 JE40 (arc=4 days, H=20.1 ~323m) from Lumezzane Obs. (May 18.96-98p3)
• K07J35J   2007 JJ35 (i=56.1°, arc=5 days, H=18.4 ~708m) from Verona Obs. (May 18.93p4)
• K07J20Z   2007 JZ20 (i=40.5°, arc=8 days, H=18.4 ~708m) from McCarthy Obs. (May 16.16-20p3)
• K07J00B   2007 JB (q=1.911 AU, arc=116 days, H=15.2 ~3.09 km) from Jim Young via Table Mtn. Obs. (May 21.16-17p4)
• K07F20E   2007 FE20 (arc=58 days, H=19.3 ~467m) from the Siding Spring Survey (SSS) (May 20.61-63p3)
• K07F01K   2007 FK1 (arc=64 days, H=20.2 ~309m) from Bornheim Obs. (May 2.86-87p2 & 3.84-85p2), Verona Obs. (May 18.88-89p4), and Hamamatsu-Yuto Obs. (May 20.61-65p10)
• K07D84S   2007 DS84 (arc=51 days, H=20.8 ~234m) from Bornheim Obs. (April 11.93-94p5 & 12.94-95p5)
• K07D83B   2007 DB83 (arc=3 opp, H=18.3 ~741m) from Verona Obs. (May 19.89-90p4) and Petit Jean Mtn. South Obs. (PJMSO) (May 20.19-20p6)
• K07D08F   2007 DF8 (arc=88 days, H=20.3 ~295m) from LAMP Obs. (May 20.28-31p3)
• K06X00A   2006 XA (arc=170 days, H=17.4 ~1.12 km) from the Catalina Sky Survey (CSS) (May 20.42-44p4)
• K06WC7O   2006 WO127 (arc=2 opp, H=16.1 ~2.04 km, q=0.993 AU) from Lumezzane Obs. (May 18.99-00p4)
• K06K89E   2006 KE89 (i=45.1°, q=0.211 AU, arc=3 opp, H=16.5 ~1.70 km) from Frasso Sabino Obs. (May 19.87-88p2) and CSS (May 20.38-40p4)
• K06H29R   2006 HR29 (arc=2 opp, H=20.6 ~257m) from Lumezzane Obs. (May 18.89-90p3)
• K03W00G   2003 WG (Q=4.351 AU, arc=2 opp, H=19.1 ~513m) from Linz Obs. (May 19.87-89p2)
• K02K04F   2002 KF4 (i=37.2°, Q=4.571 AU, arc=3 opp, H=17.3 ~1.17 km) from Frasso Sabino Obs. (May 19.86-87p3), CSS (May 20.23-26p4), and Hamamatsu-Yuto Obs. (May 20.55-57p8)
• K00L00L   2000 LL (arc=3 opp, H=19.0 ~537m) from SSS (May 20.50-53p4)
• K00K43W   2000 KW43 (arc=2 opp, H=20.0 ~339m) from CSS (May 20.39-40p3)
• J98U01L   1998 UL1 (i=42.0°, arc=5 opp, H=16.6 ~1.62 km) from Lumezzane Obs. (May 18.87-88p4), PJMSO (May 20.18-19p5), Hamamatsu-Yuto Obs. (May 20.47-48p2), and Le Couvent de Lentin Obs. (May 20.91-92p3)
• F4555   154555 2003 HA from Bornheim Obs. (April 11.90-91p3, 12.88-89p3, 14.85-86p3, May 2.87-88p3 & 3.86-87p4)
• F4347   154347 2002 XK4 from SSS (May 20.55-58p4)
• E5656   145656 4788 P-L from Bornheim Obs. (April 14.87-89p4 & 15.88-90p4) and Hamamatsu-Yuto Obs. (May 20.51-52p8)
• D8883   138883 2000 YL29 from Bornheim Obs. (April 11.87-89p3 & 12.85-87p4) and PJMSO (May 20.20-21p5)
• 86829   86829 2000 GR146 from Bornheim Obs. (April 15.85-86p3, 25.88-90p5 & 26.87-88p4) and Hamamatsu-Yuto Obs. (May 20.53-55p8)
• 86324   86324 1999 WA2 from SSS (May 20.66-70p4)
• 68350   68350 2001 MK3 from CSS (May 20.23-26p4)
• 66251   66251 1999 GJ2 from CSS (May 20.45-47p4)
• 39796   39796 1997 TD from Lumezzane Obs. (May 18.95p4) and CSS (May 20.31-33p4)
• 18882   18882 1999 YN4 from SSS (May 20.75-80p3)
• 07977   7977 1977 QQ5 from CSS (May 20.45-47p4)
• 04341   4341 Poseidon (1987 KF) from Lumezzane Obs. (May 19.01p4)

MPEC 2007-K30 - "03:30 UT" - Comet P/2007 H1 (McNaught)

• PK07H010   P/2007 H1 (McNaught) (q=2.288 AU, Q=5.184 AU, TP=2007 Aug. 15.4697 TT) from Ageo Obs. (May 13.75p2 & 19.73p3) and SSS (May 13.76p1)

MPEC 2007-K29 - "02:41 UT" - 2006 SX368

• K06Sa8X   2006 SX368 (i=36.3°, q=11.964 AU, Q=32.349 AU, H=9.5 ~42.6 km) from Joel Parker via Kitt Peak Natl. Obs. (KPNO) (May 16.43-48p3 & 17.46-49p2)

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Observers  on 21 May '07

Sixteen observing facilities appeared in this day's MPECs.

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Impact Risk Monitoring  on 21 May '07

There was no risk monitoring news to report on this day.

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Chronology  on 21 May '07

Times are UTC for when the items were noted by Major News.