Contents  on 7 June '07

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.

Minor-Object News  on 7 June '07

Minor-Object Science  on 7 June '07

No science papers were available or prepared today.

NEOCP Activity  on 7 June '07

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

When last checked at 2355 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had one updated listing. Of these, none were "one nighters." Major News counted a total of three objects listed on the NEOCP at some point on this day.

New MPECs  on 7 June '07

Minor Planet Electronic Circulars

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

MPEC 2007-L22 - "23:53 UT" - 2007 LD

MPEC 2007-L21 - "23:36 UT" - 2007 LE

MPEC 2007-L20 - "23:29 UT" - 2007 LF

MPEC 2007-L19 - "11:42 UT" - 2007 LA

<< DOU on 7 June '07 >>  MPEC 2007-L18 - "06:07 UT" - Daily Orbit Update

Observers  on 7 June '07

Thirteen observing facilities appeared in this day's MPECs.

B03Alter Satzberg Obs. in Austria, 3 in MPECs 2007-L20, 2007-L21 & 2007-L22 -- 2007 LD, 2007 LE, 2007 LF
H55Astronomical Research Obs. in Illinois, 4 in MPEC 2007-L18 -- 2007 JE40, 2007 HZ, 2006 YY2, 2000 EV106
703Catalina Sky Survey in Arizona, 5 in MPECs 2007-L18, 2007-L19 & 2007-L20 -- 2007 LF, 2007 LA, 2002 KF4, 1998 UL1, 145656
H51Greiner Research Obs. in Wisconsin, 3 in MPEC 2007-L18 -- 2007 FV42, 2007 DZ40, 2007 DF8
379Hamamatsu-Yuto Obs. in Japan, 4 in MPEC 2007-L18 -- 2007 FV42, 2005 AD13, 2002 KF4, 145656
240Herrenberg Obs. in Germany, 2 in MPECs 2007-L20 & 2007-L21 -- 2007 LE, 2007 LF
704LINEAR in New Mexico, 3 in MPECs 2007-L20, 2007-L21 & 2007-L22 -- 2007 LD, 2007 LE, 2007 LF
J59Linceo Obs., 1 in MPEC 2007-L18 -- 2007 FV42
H45Petit Jean Mtn. South Obs. in Arkansas, 12 in MPEC 2007-L18 -- 2007 JJ35, 2007 DB83, 2006 YY2, 2006 WE129, 2003 EB50, 2002 KF4, 2000 KB, 1998 UL1, 154007, 145656, 138883, 86829
649Powell Obs. in Kansas, 4 in MPEC 2007-L18 -- 2004 KH17, 2000 KX43, 2101, 1685
461SZTE Asteroid Program in Hungary, 2 in MPECs 2007-L20 & 2007-L21 -- 2007 LE, 2007 LF
104San Marcello Pistoiese Obs. in Italy, 2 in MPECs 2007-L20 & 2007-L21 -- 2007 LE, 2007 LF
B30Szamotuly-Galowo Obs. in Poland, 3 in MPEC 2007-L18 -- 2005 AD13, 136874, 85275

Impact Risk Monitoring  on 7 June '07

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2355 UTC)
Note that the time horizon for JPL is 100 years from today and for NEODyS is usually the year 2080.
For the latest official risk assessments, see the JPL NEO Program Sentry and NEODyS CLOMON (backup) risk pages.





Notes for Today's Latest Risk Assessments
2007 LAJPL16062014-2104388.8e-09-5.31-5.790JPL: "Analysis based on 16 observations spanning 1.1436 days (2007-Jun-06.23583 to 2007-Jun-07.37947)." Diameter approximately 0.210 km. from mean, weighted H=21.0.

Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale

For a list of all risk-rated objects recently in view, see our ephemerides page.

An impact solution, also known as a "virtual impactor" (VI), is not a prediction but rather a possibility derived from an 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" for more about all this.

Chronology  on 7 June '07

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

2355Grabbed MPEC 2007-L20 - 2007 LF - see above
Grabbed MPEC 2007-L21 - 2007 LE - see above
Grabbed MPEC 2007-L22 - 2007 LD - see above
1927Added news report, "Bits & pieces"
Added news report, "NEO tracking"
Added link to news story, "Dawn ELV Status Report"
1606Noted that JPL has posted 2007 LA as an impact risk - see above
1458Added link to news story, "Asteroid expert won't fret about getting hit"
1317Grabbed MPEC 2007-L18 - Daily Orbit Update - see above
Grabbed MPEC 2007-L19 - 2007 LA - see above