Dawn spacecraft at Astrotech before 
spin-balance testing. Credit: NASA.

During preparations for spin-balance testing at Astrotech "the back of a solar array panel was slightly damaged by a technician's tool," reportedly requiring "minor repairs" but not affecting the new launch schedule. See June E-news (313Kb PDF) posted yesterday for links to other mission news and info, including fun stuff for kids. Photo credit: NASA.

Contents  on 18 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 18 June '07

Minor-Object Science  on 18 June '07

No science papers were available or prepared today.

NEOCP Activity  on 18 June '07

The MPC's NEO Confirmation Page has 2 listings: 2 new

When last checked at 2357 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had two new listings. Both of these were "one nighters." Major News counted a total of nine objects listed on the NEOCP at some point on this day.

New MPECs  on 18 June '07

Minor Planet Electronic Circulars

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

MPEC 2007-M14 - "23:22 UT" - 2007 MR

MPEC 2007-M13 - "23:18 UT" - 2007 MQ

MPEC 2007-M12 - "15:45 UT" - 2007 MH

MPEC 2007-M11 - "15:41 UT" - 2007 MG

MPEC 2007-M10 - "15:35 UT" - 2007 MF

MPEC 2007-M09 - "14:38 UT" - Comet C/2007 M1 (McNaught)

<< DOU on 18 June '07 >>  MPEC 2007-M08 - "06:07 UT" - Daily Orbit Update

Observers  on 18 June '07

Fifteen observing facilities appeared in this day's MPECs.

H55Astronomical Research Obs. in Illinois, 10 in MPECs 2007-M08 & 2007-M09 -- C/2007 M1, 2007 LA15, 2007 LV8, 2007 KJ, 2007 JJ35, 2007 JZ20, 2007 HD70, 2007 CS26, 2000 QK25, 7025
703Catalina Sky Survey in Arizona, 5 in MPECs 2007-M08, 2007-M10, 2007-M11, 2007-M13 & 2007-M14 -- 2007 MR, 2007 MQ, 2007 MG, 2007 MF, 145656
734Farpoint Obs. in Kansas, 4 in MPECs 2007-M08, 2007-M09 & 2007-M10 -- 2007 MF, C/2007 M1, 2007 LQ19, 2007 KN4
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2007-M13 -- 2007 MQ
651Grasslands Obs. in Arizona, 1 in MPEC 2007-M09 -- C/2007 M1
J95Great Shefford Obs. in England, 2 in MPECs 2007-M13 & 2007-M14 -- 2007 MR, 2007 MQ
B19Iluro Obs. in Spain, 5 in MPEC 2007-M08 -- 2007 FV42, 2007 DF8, 2005 NW44, 2004 ST9, 2002 AC2
474Mt. John Obs. in New Zealand, 2 in MPECs 2007-M10 & 2007-M12 -- 2007 MH, 2007 MF
461SZTE Asteroid Program in Hungary, 2 in MPECs 2007-M13 & 2007-M14 -- 2007 MR, 2007 MQ
E12Siding Spring Survey in New South Wales, 6 in MPECs 2007-M08, 2007-M09, 2007-M10 & 2007-M12 -- 2007 MH, 2007 MF, C/2007 M1, 2004 KE1, 85713, 25330
691Spacewatch 0.9m telescope in Arizona, 2 in MPECs 2007-M08 & 2007-M11 -- 2007 MG, 68348
291Spacewatch 1.8m telescope in Arizona, 8 in MPECs 2007-M08 & 2007-M11 -- 2007 MG, 2007 LB15, 2007 LS, 2007 LD, 2007 KG7, 2006 SU19, 2001 HY7, 1997 GH28
673Table Mtn. Obs. in southern California, 1 in MPEC 2007-M09 -- C/2007 M1
6735Jim Young via Table Mtn. Obs. in southern California, 3 in MPECs 2007-M10, 2007-M11 & 2007-M12 -- 2007 MH, 2007 MG, 2007 MF
A48Verona Obs. in Italy, 3 in MPEC 2007-M08 -- 2007 LV8, 2007 LF, 2007 JJ35
198Wildberg Obs. in Germany, 2 in MPECs 2007-M13 & 2007-M14 -- 2007 MR, 2007 MQ

Impact Risk Monitoring  on 18 June '07

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2357 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 LSJPL1222R E M O V E DJPL: Risk listing removed at 1145 UTC.
2007 LQ19JPL12222011-2106702.8e-06-1.66-2.010JPL: "Analysis based on 10 observations spanning 3.6040 days (2007-Jun-13.78733 to 2007-Jun-17.39138)." Diameter approximately 0.897 km. from mean, weighted H=17.9.
NEODyS12222011-2079201.8e-06-1.77-2.080NEODyS: "Based on 10 optical observations (of which 0 are rejected as outliers) from 2007/06/13.788 to 2007/06/17.392."
2007 LB15JPL12222024-2096262.1e-07-3.18-3.550JPL: "Analysis based on 24 observations spanning 4.0197 days (2007-Jun-13.3467 to 2007-Jun-17.36645)." Diameter approximately 0.601 km. from mean, weighted H=18.8.
NEODyS12222024-2078372.47e-07-3.10-3.510NEODyS: "Based on 24 optical observations (of which 0 are rejected as outliers) from 2007/06/13.347 to 2007/06/17.367."

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 18 June '07

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

2357Grabbed MPEC 2007-M13 - 2007 MQ - see above
Grabbed MPEC 2007-M14 - 2007 MR - see above
1701Added link to news story, "Comet discovery brightened up miserable night"
Added link to news story, "Catch a falling star"
1601Grabbed MPEC 2007-M09 - Comet C/2007 M1 (McNaught) - see above
Grabbed MPEC 2007-M10 - 2007 MF - see above
Grabbed MPEC 2007-M11 - 2007 MG - see above
Grabbed MPEC 2007-M12 - 2007 MH - see above
1222Noted that JPL has updated its 2007 LB15 risk assessment - see above
Noted that NEODyS has updated its 2007 LB15 risk assessment - see above
Noted that JPL has updated its 2007 LQ19 risk assessment - see above
Noted that NEODyS has updated its 2007 LQ19 risk assessment - see above
Noted that JPL has removed 2007 LS as an impact risk - see above
Grabbed MPEC 2007-M08 - Daily Orbit Update - see above
1221Noted that NEODyS has removed 2007 LS as an impact risk - see above