25413 Itokawa from Hayabusa on 
30 Sept. 2005. (c)Copyright JAXA.

On this day in 2005, the Japanese MUSES-C Hayabusa spacecraft arrived at what the ISAS mission called the "Gate Position," 20 km. from asteroid 25413 Itokawa. On September 30th UTC, the day this image was made, Hayabusa moved to the "Home Position" at about 7 km. distance from what was found to be a "rubble pile" object. ©Copyright: JAXA.


Contents  on 12 September '07

Resources:

The latest news: framed access (best), RSS news feed (flags updates), or redirection - Note: A/CC has a main Web site and a backup site.

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 this year 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.

Minor-Object News  on 12 September '07

Minor-Object Science  on 12 September '07

NEOCP Activity  on 12 September '07

The MPC's NEO Confirmation Page has 23 listings: 14 new, 9 updated

When last checked at 2354 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had fourteen new and nine updated listings. Of these, fourteen were "one nighters." So far Major News has counted a total of 25 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.

New MPECs  on 12 September '07

Minor Planet Electronic Circulars

As of last check at 2354 UTC, there have been eight MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2007-R61 - "14:55 UT" - Observations of Comets


MPEC 2007-R60 - "14:45 UT" - Comet P/2007 R1 (Larson)


MPEC 2007-R59 - "14:41 UT" - Comet C/2007 Q3 (Siding Spring)


MPEC 2007-R58 - "14:37 UT" - Comet P/2007 Q2 (Gilmore)


MPEC 2007-R57 - "14:32 UT" - Comet C/2007 Q1 (Garradd)


MPEC 2007-R56 - "14:28 UT" - Comet C/2007 N3 (Lulin)


MPEC 2007-R55 - "13:16 UT" - Comet P/2007 R2 (Gibbs)


<< DOU on 12 Sept. '07 >>  MPEC 2007-R54 - "06:06 UT" - Daily Orbit Update

Observers  on 12 September '07

A total of 57 observing facilities appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 12 in MPECs 2007-R56 & 2007-R61 -- 2007 N3, 2007 H1, 2006 U6, 2005 L3, 2005 EL173, 136P, 125P, 117P, 110P, 50P, 46P, 8P
J51Atlante Obs. in the Canary Islands, 10 in MPECs 2007-R54, 2007-R56, 2007-R58 & 2007-R61 -- 2007 Q2, 2007 N3, 2007 H1, 2006 OF2, 3753, 188P, 93P, 50P, 46P, 17P
413Australian Natl. Univ. 1m telescope in New South Wales, 5 in MPECs 2007-R57, 2007-R59 & 2007-R61 -- 2007 Q3, 2007 Q1, 2005 EL173, 113P, 16P
215Buchloe Obs. in Germany, 1 in MPEC 2007-R61 -- 117P
235CAST Obs. in Italy, 2 in MPEC 2007-R61 -- 2006 OF2, 2005 L3
B14Ca del Monte Obs. in Italy, 1 in MPEC 2007-R61 -- 93P
B20Carmelita Obs. in Spain, 2 in MPEC 2007-R61 -- 2007 G1, 2005 L3
703Catalina Sky Survey in Arizona, 9 in MPECs 2007-R54, 2007-R55, 2007-R56 & 2007-R61 -- 2007 R2, 2007 PE8, 2007 N3, 2007 N1, 2006 OF2, 2004 SD26, 1999 FA, 136P, 93P
A77Chante-Perdrix Obs. in France, 3 in MPEC 2007-R61 -- 2006 OF2, 139P, 8P
808El Leoncito Obs. in Argentina, 3 in MPEC 2007-R61 -- 2007 H1, 2006 OF2, 2006 K4
151Eschenberg Obs. in Switzerland, 6 in MPECs 2007-R54 & 2007-R55 -- 2007 R2, 2007 PA8, 2007 LR32, 2007 HE15, 2003 RX7, 2000 RW37
734Farpoint Obs. in Kansas, 1 in MPEC 2007-R55 -- 2007 R2
F65Faulkes Telescope North in Hawaii, 1 in MPEC 2007-R55 -- 2007 R2
F653FTP education program via Faulkes Telescope North in Hawaii, 2 in MPEC 2007-R54 -- 2007 ML6, 2007 GS3
157Frasso Sabino Obs. in Italy, 1 in MPEC 2007-R58 -- 2007 Q2
372Geisei Obs. in Japan, 2 in MPEC 2007-R61 -- 2007 M3, 2007 G1
651Grasslands Obs. in Arizona, 1 in MPEC 2007-R55 -- 2007 R2
J95Great Shefford Obs. in England, 1 in MPEC 2007-R55 -- 2007 R2
H51Greiner Research Obs. in Wisconsin, 2 in MPEC 2007-R54 -- 2004 SD26, 1998 SD15
442Gualba Obs. in Spain, 3 in MPEC 2007-R61 -- 93P, 50P, 29P
379Hamamatsu-Yuto Obs. in Japan, 1 in MPEC 2007-R61 -- 2006 OF2
F84Hibiscus Obs. in Tahiti, 1 in MPEC 2007-R54 -- 2001 RY47
D88Hiratsuka Obs., 3 in MPEC 2007-R61 -- 2007 M3, 2007 G1, 2005 L3
B19Iluro Obs. in Spain, 3 in MPEC 2007-R61 -- 2006 OF2, 93P, 50P
701Junk Bond Obs. in Arizona, 2 in MPEC 2007-R54 -- 2007 RU9, 2007 RR9
415Kambah Obs. in Australia, 7 in MPECs 2007-R56, 2007-R57, 2007-R58, 2007-R59, 2007-R60 & 2007-R61 -- 2007 R1, 2007 Q3, 2007 Q2, 2007 Q1, 2007 N3, 2006 OF2, 139P
585Kiev Comet Station in the Ukraine, 4 in MPECs 2007-R56 & 2007-R61 -- 2007 N3, 2007 M1, 2005 S4, 2005 L3
704LINEAR in New Mexico, 2 in MPECs 2007-R58 & 2007-R61 -- 2007 Q2, 188P
699LONEOS in Arizona, 5 in MPECs 2007-R56, 2007-R60 & 2007-R61 -- 2007 R1, 2007 N3, 188P, 136P, 113P
J76La Murta Obs. in Spain, 5 in MPEC 2007-R61 -- 2007 M3, 2007 G1, 2006 OF2, 2005 L3, 125P
809|program code {|} via La Silla in Chile, 1 in MPEC 2007-R54 -- 2007 PA8
J59Linceo Obs. in Spain, 3 in MPEC 2007-R61 -- 2007 H1, 2006 OF2, 93P
844Los Molinos Obs. in Uruguay, 1 in MPEC 2007-R61 -- 2006 K4
130Lumezzane Obs. in Italy, 2 in MPEC 2007-R61 -- 2007 G1, 189P
A01Masia Cal Maciarol Modul 1, 1 in MPEC 2007-R61 -- 2005 L3
A06Mataro Obs. in Spain, 7 in MPEC 2007-R61 -- 2007 H1, 2007 G1, 2006 OF2, 2005 L3, 188P, 93P, 50P
J45Montana Cabreja Obs. in the Canary Islands, 2 in MPEC 2007-R61 -- 2006 OF2, 2005 L3
213Montcabre Obs. in Spain, 8 in MPECs 2007-R57, 2007-R58, 2007-R60 & 2007-R61 -- 2007 R1, 2007 Q2, 2007 Q1, 2007 N1, 2007 H1, 2007 G1, 2006 OF2, 93P
945Monte Deva Obs. in Spain, 5 in MPEC 2007-R61 -- 2007 H1, 2007 G1, 2006 OF2, 93P, 50P
900Moriyama Obs. in Japan, 7 in MPEC 2007-R61 -- 2007 H1, 2007 G1, 2006 OF2, 2005 L3, 188P, 93P, 50P
G96Mt. Lemmon Survey in Arizona, 8 in MPECs 2007-R54, 2007-R55 & 2007-R61 -- 2007 R2, 2007 OV, 2002 RT129, 2001 WR1, 2001 SE170, 139047, 6047, 188P
608NEAT's USAF Haleakala telescope in Hawaii, 1 in MPEC 2007-R54 -- 2000 SY162
A13Naef Obs. in Switzerland, 3 in MPECs 2007-R54 & 2007-R55 -- 2007 R2, 2007 PU11, 2212
A24New Millennium Obs. in Italy, 6 in MPECs 2007-R54 & 2007-R61 -- 2007 QE3, 2005 S4, 2002 NN4, 16636, 188P, 117P
423North Ryde Obs. in New South Wales, 1 in MPEC 2007-R61 -- 46P
A32Panker Obs. in Germany, 5 in MPEC 2007-R61 -- 2007 G1, 2005 S4, 2005 L3, 50P, 17P
A53Peschiera del Garda Obs. in Italy, 3 in MPEC 2007-R54 -- 2007 PU11, 2007 PE8, 2007 LR32
586Pic du Midi Obs. in France, 2 in MPEC 2007-R61 -- 2007 G1, 93P
473Remanzacco Obs. in Italy, 2 in MPECs 2007-R56 & 2007-R61 -- 2007 N3, 2006 OF2
461SZTE Asteroid Program in Hungary, 1 in MPEC 2007-R61 -- 167P
204Schiaparelli Obs. in Italy, 12 in MPECs 2007-R56 & 2007-R61 -- 2007 N3, 2007 M1, 2007 H1, 2007 G1, 2006 U6, 2006 OF2, 2006 M4, 189P, 167P, 139P, 125P, 113P
E12Siding Spring Survey in New South Wales, 4 in MPECs 2007-R54 & 2007-R61 -- 2006 M4, 154269, 4954, 117P
691Spacewatch 0.9m telescope in Arizona, 5 in MPECs 2007-R54 & 2007-R61 -- 2003 BT47, 1997 GH28, 1996 FO3, 154330, 188P
291Spacewatch 1.8m telescope in Arizona, 3 in MPEC 2007-R54 -- 2007 RZ8, 2007 RF2, 2003 WM7
B30Szamotuly-Galowo Obs. in Poland, 2 in MPEC 2007-R61 -- 2006 S5, 2006 K3
673Table Mtn. Obs. in southern California, 3 in MPECs 2007-R55 & 2007-R61 -- 2007 R2, 2007 M3, 2007 M1
J70Vega del Thader Obs. in Spain, 3 in MPECs 2007-R56 & 2007-R61 -- 2007 N3, 2006 OF2, 2005 S4
B42Vitebsk Obs. in Belarus, 14 in MPECs 2007-R58, 2007-R60 & 2007-R61 -- 2007 R1, 2007 Q2, 2007 N1, 2007 H1, 2007 G1, 2006 S5, 2006 OF2, 2006 K3, 110P, 93P, 50P, 29P, 17P, 8P

Impact Risk Monitoring  on 12 September '07

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2354 UTC)
See the CRT page for a list of all objects rated recently as risks.
Note that the time horizon for JPL is 100 years from today and for NEODyS is now usually the year 2090.
For the latest official risk assessments, and for explanations of the terminology, see the JPL NEO Program Sentry and NEODyS CLOMON (backup) risk pages.
0000NNN000

Object

Risk
Monitor
When
Noted
UTC
0000T0000
Year
Range

VI
#
000NN00
Prob
Cum
T0000
PS
Cum
T0000
PS
Max

T
S


Notes for Today's Latest Risk Assessments
2007 RV9NEODyS13242008-2088801.99e-08-3.36-3.370NEODyS: "Based on 11 optical observations (of which 0 are rejected as outliers) from 2007/09/10.289 to 2007/09/11.277."
2007 RU9NEODyS13242013-2086871.15e-06-3.14-3.490NEODyS: "Based on 25 optical observations (of which 1 are rejected as outliers) from 2007/09/10.287 to 2007/09/11.407."
JPL13232010-21073573.9e-06-2.60-3.320JPL: "Analysis based on 23 observations spanning 1.1205 days (2007-Sep-10.28596 to 2007-Sep-11.40646)." Diameter approximately 0.244 km. from mean, weighted H=20.7.
2007 RT9NEODyS14382016-2083235.42e-09-5.32-5.510NEODyS: "Based on 15 optical observations (of which 0 are rejected as outliers) from 2007/09/10.285 to 2007/09/11.318."
2007 RR9NEODyS13242046-208943.4e-09-6.36-6.450NEODyS: "Based on 36 optical observations (of which 0 are rejected as outliers) from 2007/09/10.213 to 2007/09/11.436."
JPL13232046-2107111.3e-07-4.69-5.100JPL: "Analysis based on 36 observations spanning 1.2227 days (2007-Sep-10.21237 to 2007-Sep-11.43502)." Diameter approximately 0.300 km. from mean, weighted H=20.3.
2007 RF2JPL1323210311.5e-09-6.74-6.740JPL: "Analysis based on 35 observations spanning 5.9704 days (2007-Sep-05.41331 to 2007-Sep-11.38371)." Diameter approximately 0.260 km. from mean, weighted H=20.5.

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 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 this.

Chronology  on 12 September '07

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

2057Added link to news story, "UA Astronomers Will Trace Planet Formation With Neon" - see above
Added link to news story, "Greensburg meteorite finds temporary home at Hays museum" - see above
Added link to news story, "Cosmic Neon Lights the Way" - see above
1555Grabbed MPEC 2007-R58 - Comet P/2007 Q2 (Gilmore) - see above
Grabbed MPEC 2007-R59 - Comet C/2007 Q3 (Siding Spring) - see above
Grabbed MPEC 2007-R60 - Comet P/2007 R1 (Larson) - see above
Grabbed MPEC 2007-R61 - Observations of Comets - see above
1437Noted that NEODyS has posted 2007 RT9 as an impact risk - see above
Grabbed MPEC 2007-R56 - Comet C/2007 N3 (Lulin) - see above
Grabbed MPEC 2007-R57 - Comet C/2007 Q1 (Garradd) - see above
1409Grabbed MPEC 2007-R55 - Comet P/2007 R2 (Gibbs) - see above
1330Added MOS paper, " Astrometry of Water Maser Sources in Nearby Molecular Clouds with VERA -- II. SVS 13 in NGC 1333" - see above
Added MOS paper, "The Vertical Structure of Planet-induced Gaps in Proto-Planetary Discs" - see above
Added link to news story, "Foton-M3 mission to launch European experiments" - see above
Added link to news story, "Dawn One Step Away From Asteroid Belt Trip" - see above
Added link to news story, "UK samples set for a taste of space" - see above
Added link to news story, "Dawn asteroid probe back on the launch pad again" - see above
1324Grabbed MPEC 2007-R54 - Daily Orbit Update - see above
1323Noted that JPL has posted 2007 RF2 as an impact risk - see above
Noted that JPL has updated its 2007 RR9 risk assessment - see above
Noted that NEODyS has posted 2007 RR9 as an impact risk - see above
Noted that JPL has updated its 2007 RU9 risk assessment - see above
Noted that NEODyS has posted 2007 RU9 as an impact risk - see above
Noted that NEODyS has posted 2007 RV9 as an impact risk - see above