Jupiter bright flash at 2031:29 UTC 3 June 2010 
imaged by Anthony Wesley

Anthony Wesley in New South Wales, Australia reported yesterday on IceInSpace.com.au that "at approximately 20:30utc this morning I recorded a large fireball on Jupiter." This is the same amateur who discovered an impact plume on Jupiter one year ago next month. That event was followed up by many observers, including with the Hubble Space Telescope, about which a news item was coincidentally released yesterday. SpaceWeather.com is reporting that Christopher Go in the Philippines also recorded the flash. Image from Anthony Wesley from 2031:29 UTC (north is up).

Contents  on 4 June '10


The latest A/CC news is available via framed access, RSS news feed 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.

NEOCP Activity  on 4 June '10

The MPC's NEO Confirmation Page has 13 listings: 8 new, 5 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had eight new and five updated listings. Of these, five were "one nighters." So far The Tracking News has counted a total of seventeen listings on the NEOCP at some point today.

New MPECs  on 4 June '10

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there have been six MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2010-L17 - "15:09 UT" - Comet P/2010 K2 (WISE)

MPEC 2010-L16 - "13:24 UT" - 2003 MJ4

<< DOU on 4 June '10 >>  MPEC 2010-L15 - "06:08 UT" - Daily Orbit Update

MPEC 2010-L14 - "05:22 UT" - 2009 SP171

MPEC 2010-L13 - "03:56 UT" - 2010 KZ117

MPEC 2010-L12 - "00:34 UT" - 2008 WM64

Observers  on 4 June '10

Nineteen observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 1 in MPEC 2010-L17 -- P/2010 K2
703Catalina Sky Survey (CSS) in Arizona, 3 in MPEC 2010-L15 -- 2010 JK41, 2010 JF88, 136874
448Desert Moon Obs. in New Mexico, 5 in MPEC 2010-L15 -- 2010 JK41, 2010 JH88, 2010 FO92, 85818, 161998
H26Doc Greiner Research Obs. in Wisconsin, 1 in MPEC 2010-L15 -- 2007 HA59
J27El Guijo Obs. in Spain, 2 in MPEC 2010-L15 -- 2009 KD5, 2004 JX20
F656Richard Miles in England via Faulkes Telescope North in Hawaii, 1 in MPEC 2010-L15 -- 2010 CJ171
J95Great Shefford Obs. in England, 2 in MPECs 2010-L12 & 2010-L15 -- 2008 WM64, 1999 MN
379Hamamatsu-Yuto Obs. in Japan, 3 in MPEC 2010-L15 -- 2009 KD5, 2004 JX20, 241370
I25La Estancia Obs., 2 in MPEC 2010-L15 -- 2010 GA24, 1036
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-L15 -- 2010 FX80
474Mt. John Obs. in New Zealand, 1 in MPEC 2010-L17 -- P/2010 K2
G96Mt. Lemmon Survey (MLS) in Arizona, 2 in MPEC 2010-L15 -- 2010 KQ, 2010 JS34
H36Sandlot Obs. in Kansas, 3 in MPECs 2010-L12, 2010-L15 & 2010-L17 -- P/2010 K2, 2008 YJ3, 2008 WM64
260&Rob Matson in southern California using the Siding Spring Digitized Sky Survey in New South Wales, 1 in MPEC 2010-L15 -- 2009 UK
E12Siding Spring Survey in New South Wales, 1 in MPEC 2010-L13 -- 2010 KZ117
691Spacewatch 0.9m telescope in Arizona, 3 in MPEC 2010-L15 -- 2009 KD5, 2001 HZ7, 175729
291Spacewatch 1.8m telescope in Arizona, 4 in MPECs 2010-L15 & 2010-L17 -- P/2010 K2, 2010 JL33, 2010 GZ33, 2010 GT7
926Tenagra II Obs. in Arizona, 3 in MPECs 2010-L14, 2010-L15 & 2010-L16 -- 2010 KA8, 2009 SP171, 2003 MJ4
C51WISE in Earth polar orbit, 4 in MPECs 2010-L13, 2010-L15 & 2010-L17 -- 2010 KZ117, P/2010 K2, 2000 JA3, 207945
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 4 June '10

At last check (NEODyS and JPL at 2359 UTC) there was no risk monitoring news to report yet today. Visit the CRT to view activity in the last four weeks and our ephemerides page for a complete list of risk-rated objects under current observation or having recent news.

Chronology  on 4 June '10

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

1524Grabbed MPEC 2010-L14 - 2009 SP171 - see above
Grabbed MPEC 2010-L15 - Daily Orbit Update - see above
Grabbed MPEC 2010-L16 - 2003 MJ4 - see above
Grabbed MPEC 2010-L17 - Comet P/2010 K2 (WISE) - see above
0502Grabbed MPEC 2010-L13 - 2010 KZ117 - see above
0036Grabbed MPEC 2010-L12 - 2008 WM64 - see above