Contents  on 4 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 4 September '07

There is no news to report yet today (none found or none prepared).

Minor-Object Science  on 4 September '07

No science papers are known or prepared yet today.

NEOCP Activity  on 4 September '07

The MPC's NEO Confirmation Page has 3 listings: 2 new, 1 updated

When last checked at 2354 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had two new and one updated listings. Of these, two were "one nighters." So far Major News has counted a total of eleven 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 4 September '07

Minor Planet Electronic Circulars

As of last check at 2355 UTC, there have been twelve MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2007-R18 - "23:07 UT" - 2007 RO1


MPEC 2007-R17 - "16:37 UT" - Observations of Comets


MPEC 2007-R16 - "16:20 UT" - Comet C/2007 Q3 (Siding Spring)


MPEC 2007-R15 - "16:15 UT" - Comet P/2007 Q2 (Gilmore)


MPEC 2007-R14 - "16:10 UT" - Comet C/2007 N3 (Lulin)


MPEC 2007-R13 - "12:56 UT" - 2007 RJ1


MPEC 2007-R12 - "12:53 UT" - 2007 RH1


MPEC 2007-R11 - "12:50 UT" - 2007 RG1


MPEC 2007-R10 - "12:46 UT" - 2007 RF1


MPEC 2007-R09 - "12:44 UT" - 2007 RE1


MPEC 2007-R08 - "12:40 UT" - 2007 RD1


<< DOU on 4 Sept. '07 >>  MPEC 2007-R07 - "06:07 UT" - Daily Orbit Update

Observers  on 4 September '07

A total of 53 observing facilities appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 6 in MPEC 2007-R17 -- 2007 H1, 2007 G1, 2006 OF2, 2005 L3, 188P, 17P
H55Astronomical Research Obs. in Illinois, 2 in MPECs 2007-R08 & 2007-R09 -- 2007 RE1, 2007 RD1
413Australian Natl. Univ. 1m telescope in New South Wales, 3 in MPECs 2007-R16 & 2007-R17 -- 2007 Q3, 2006 K1, 47P
A88Bolzaneto Obs. in Italy, 1 in MPEC 2007-R07 -- 2007 LR32
I77CEAMIG-REA in Brazil, 1 in MPEC 2007-R12 -- 2007 RH1
J79Calarreona Obs. in Spain, 2 in MPEC 2007-R17 -- 2006 OF2, 2005 L3
B20Carmelita Obs. in Spain, 3 in MPEC 2007-R17 -- 2007 G1, 2006 OF2, 2005 L3
703Catalina Sky Survey in Arizona, 7 in MPECs 2007-R07, 2007-R10, 2007-R12, 2007-R17 & 2007-R18 -- 2007 RO1, 2007 RH1, 2007 RF1, 2007 OV, 2007 G1, 1999 DB7, 138883
A77Chante-Perdrix Obs. in France, 3 in MPEC 2007-R17 -- 2007 O1, 2006 OF2, 8P
A10Corbera Obs. in Spain, 3 in MPEC 2007-R17 -- 2007 G1, 2006 OF2, 2005 L3
448Desert Moon Obs. in New Mexico, 2 in MPEC 2007-R07 -- 2007 PD8, 2005 OU1
734Farpoint Obs. in Kansas, 7 in MPECs 2007-R08, 2007-R09, 2007-R10, 2007-R11, 2007-R12, 2007-R13 & 2007-R17 -- 2007 RJ1, 2007 RH1, 2007 RG1, 2007 RF1, 2007 RE1, 2007 RD1, 29P
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2007-R18 -- 2007 RO1
372Geisei Obs. in Japan, 2 in MPEC 2007-R17 -- 2006 VZ13, 50P
651Grasslands Obs. in Arizona, 5 in MPECs 2007-R08, 2007-R10, 2007-R11, 2007-R12 & 2007-R13 -- 2007 RJ1, 2007 RH1, 2007 RG1, 2007 RF1, 2007 RD1
J95Great Shefford Obs. in England, 7 in MPECs 2007-R08, 2007-R10, 2007-R11, 2007-R12, 2007-R13, 2007-R17 & 2007-R18 -- 2007 RO1, 2007 RJ1, 2007 RH1, 2007 RG1, 2007 RF1, 2007 RD1, 2006 W3
H51Greiner Research Obs. in Wisconsin, 4 in MPEC 2007-R07 -- 2007 QE3, 2007 PP9, 2007 PE8, 2007 LR32
458Guadarrama Obs. in Spain, 1 in MPEC 2007-R17 -- 2005 L3
442Gualba Obs. in Spain, 5 in MPEC 2007-R17 -- 2007 G1, 2006 OF2, 2005 L3, 189P, 29P
A17Guidestar Obs. in Germany, 1 in MPEC 2007-R18 -- 2007 RO1
379Hamamatsu-Yuto Obs. in Japan, 4 in MPECs 2007-R07 & 2007-R17 -- 2007 PU11, 2007 PE8, 2007 LR32, 2006 OF2
048Hradec Kralove Obs. in the Czech Republic, 4 in MPEC 2007-R17 -- 2007 M3, 2007 G1, 2006 OF2, 2005 L3
B15Inastars Obs. in Germany, 2 in MPEC 2007-R07 -- 2001 QC34, 1999 JU3
585Kiev Comet Station in the Ukraine, 4 in MPECs 2007-R14 & 2007-R17 -- 2007 N3, 2007 M3, 93P, 17P
704LINEAR in New Mexico, 1 in MPEC 2007-R17 -- 2000 P3
J76La Murta Obs. in Spain, 3 in MPEC 2007-R17 -- 2007 M3, 2007 G1, 2005 L3
J59Linceo Obs. in Spain, 1 in MPEC 2007-R17 -- 2006 OF2
560Madonna di Dossobuono Obs. in Italy, 4 in MPEC 2007-R07 -- 2007 QK2, 2007 PV27, 2007 PE8, 2007 PB8
A02Masia Cal Maciarol Modul 8 in Spain, 1 in MPEC 2007-R17 -- 189P
232Masquefa Obs. in Spain, 7 in MPECs 2007-R14 & 2007-R17 -- 2007 N3, 2007 M3, 2006 OF2, 2005 L3, 29P, 17P, 8P
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2007-R07 -- 2005 TU45
932McCarthy Obs. in Connecticut, 1 in MPEC 2007-R08 -- 2007 RD1
J46Montana Blanca Obs. in the Canary Islands, 3 in MPEC 2007-R17 -- 2007 G1, 2006 OF2, 2005 L3
213Montcabre Obs. in Spain, 9 in MPECs 2007-R14, 2007-R15 & 2007-R17 -- 2007 Q2, 2007 N3, 2007 H1, 2007 G1, 2006 OF2, 2005 L3, 189P, 188P, 93P
945Monte Deva Obs. in Spain, 3 in MPEC 2007-R17 -- 2007 H1, 2006 OF2, 2005 L3
G96Mt. Lemmon Survey in Arizona, 6 in MPECs 2007-R08, 2007-R09, 2007-R10, 2007-R11, 2007-R12 & 2007-R13 -- 2007 RJ1, 2007 RH1, 2007 RG1, 2007 RF1, 2007 RE1, 2007 RD1
608NEAT's USAF Haleakala telescope in Hawaii, 1 in MPEC 2007-R17 -- 2000 P3
J47Nazaret Obs. in Spain, 6 in MPEC 2007-R17 -- 2007 G1, 2006 OF2, 189P, 188P, 93P, 50P
A24New Millennium Obs. in Italy, 9 in MPECs 2007-R07, 2007-R08 & 2007-R17 -- 2007 RD1, 2007 PE8, 2007 LR32, 2005 S4, 2002 NN4, 86039, 16636, 154453, 4544
A32Panker Obs. in Germany, 3 in MPEC 2007-R17 -- 2007 G1, 2007 E2, 189P
473Remanzacco Obs. in Italy, 6 in MPECs 2007-R14, 2007-R17 & 2007-R18 -- 2007 RO1, 2007 N3, 2007 M3, 2006 OF2, 2005 L3, 17P
939Rodeno Obs. in Spain, 4 in MPEC 2007-R17 -- 2007 M3, 2007 G1, 2006 OF2, 2005 L3
461SZTE Asteroid Program in Hungary, 1 in MPEC 2007-R17 -- 2006 VZ13
B38Santa Mama Obs. in Italy, 3 in MPEC 2007-R07 -- 2007 LR32, 2002 NN4, 105140
204Schiaparelli Obs. in Italy, 6 in MPECs 2007-R08, 2007-R09, 2007-R14 & 2007-R17 -- 2007 RE1, 2007 RD1, 2007 N3, 2007 M3, 2005 S4, 2005 L3
E12Siding Spring Survey in New South Wales, 1 in MPEC 2007-R17 -- 47P
A78Stia Obs. in Italy, 3 in MPEC 2007-R07 -- 2007 QK2, 2007 QE3, 2007 PU11
147Suno Obs. in Italy, 1 in MPEC 2007-R17 -- 2006 W3
B30Szamotuly-Galowo Obs. in Poland, 1 in MPEC 2007-R17 -- 17P
F85Tiki Obs. in Tahiti, 2 in MPECs 2007-R07 & 2007-R16 -- 2007 Q3, 2007 PD8
J70Vega del Thader Obs. in Spain, 9 in MPECs 2007-R14, 2007-R15 & 2007-R17 -- 2007 Q2, 2007 O1, 2007 N3, 2007 M3, 2007 H1, 2007 G1, 2006 OF2, 2005 S4, 2005 L3
H47Vicksburg Obs. in Mississippi, 1 in MPEC 2007-R17 -- 2005 L3
247roving observer, 1 in MPEC 2007-R15 -- 2007 Q2

Impact Risk Monitoring  on 4 September '07

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2355 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 RJ1JPL18292068-206921.1e-08-8.22-8.220JPL: "Analysis based on 16 observations spanning .87661 days (2007-Sep-03.29425 to 2007-Sep-04.17086)." Diameter approximately 0.031 km. from mean, weighted H=25.2.
2007 RF1JPL1829209915.9e-09-9.20-9.200JPL: "Analysis based on 28 observations spanning 1.0701 days (2007-Sep-03.22432 to 2007-Sep-04.29438)." Diameter approximately 0.021 km. from mean, weighted H=26.1.
2007 RE1JPL18292013-2106406.9e-08-5.32-6.040JPL: "Analysis based on 16 observations spanning .83459 days (2007-Sep-02.40469 to 2007-Sep-03.23928)." Diameter approximately 0.160 km. from mean, weighted H=21.6.

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 4 September '07

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

2355Grabbed MPEC 2007-R18 - 2007 RO1 - see above
1829Noted that JPL has posted 2007 RE1 as an impact risk - see above
Noted that JPL has posted 2007 RF1 as an impact risk - see above
Noted that JPL has posted 2007 RJ1 as an impact risk - see above
Grabbed MPEC 2007-R14 - Comet C/2007 N3 (Lulin) - see above
Grabbed MPEC 2007-R15 - Comet P/2007 Q2 (Gilmore) - see above
Grabbed MPEC 2007-R16 - Comet C/2007 Q3 (Siding Spring) - see above
Grabbed MPEC 2007-R17 - Observations of Comets - see above
1436Grabbed MPEC 2007-R07 - Daily Orbit Update - see above
Grabbed MPEC 2007-R09 - 2007 RE1 - see above
Grabbed MPEC 2007-R10 - 2007 RF1 - see above
Grabbed MPEC 2007-R11 - 2007 RG1 - see above
Grabbed MPEC 2007-R12 - 2007 RH1 - see above
Grabbed MPEC 2007-R13 - 2007 RJ1 - see above
1435Grabbed MPEC 2007-R08 - 2007 RD1 - see above