Contents  on 14 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 14 September '07

Minor-Object Science  on 14 September '07

NEOCP Activity  on 14 September '07

The MPC's NEO Confirmation Page has 15 listings: 6 new, 9 updated

When last checked at 1929 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had six new and nine updated listings. Of these, thirteen were "one nighters." So far Major News has counted a total of 29 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 14 September '07

Minor Planet Electronic Circulars

As of last check at 1929 UTC, there have been eleven MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2007-R82 - "18:52 UT" - 2005 XL80


MPEC 2007-R81 - "18:12 UT" - 2007 RW17


MPEC 2007-R80 - "18:09 UT" - 2007 RV17


MPEC 2007-R79 - "18:05 UT" - 2007 RU17


MPEC 2007-R78 - "18:02 UT" - 2007 RT17


MPEC 2007-R77 - "18:00 UT" - 2007 RS17


MPEC 2007-R76 - "17:53 UT" - 2007 RR17


MPEC 2007-R75 - "17:48 UT" - 2007 RQ17


MPEC 2007-R74 - "17:45 UT" - 2007 RP17


MPEC 2007-R73 - "17:42 UT" - 2007 RO17


<< DOU on 14 Sept. '07 >>  MPEC 2007-R72 - "06:07 UT" - Daily Orbit Update

Observers  on 14 September '07

A total of 33 observing facilities appear in today's MPECs.

CodeObserver / observatory
B03Alter Satzberg Obs. in Austria, 2 in MPECs 2007-R72 & 2007-R75 -- 2007 RQ17, 2007 RP15
H55Astronomical Research Obs. in Illinois, 8 in MPECs 2007-R72, 2007-R75 & 2007-R82 -- 2007 RV12, 2007 RU12, 2007 RT12, 2007 RS12, 2007 RQ17, 2007 RP12, 2005 XL80, 2004 DM44
A81Balzaretto Obs. in Italy, 1 in MPEC 2007-R72 -- 2007 RJ1
I77CEAMIG-REA in Brazil, 4 in MPECs 2007-R75, 2007-R76, 2007-R80 & 2007-R81 -- 2007 RW17, 2007 RV17, 2007 RR17, 2007 RQ17
B09Capannoli Obs. in Italy, 2 in MPEC 2007-R72 -- 2007 PU11, 1999 JU3
703Catalina Sky Survey in Arizona, 14 in MPECs 2007-R72 & 2007-R80 -- 2007 RV17, 2007 PU11, 2007 KN4, 2002 RN129, 2000 RW37, 2000 JN10, 2000 HO14, 90373, 26166, 21277, 17182, 16636, 15745, 7092
A94Cormons Obs. in Italy, 1 in MPEC 2007-R72 -- 2007 LR32
151Eschenberg Obs. in Switzerland, 3 in MPEC 2007-R72 -- 2007 RY9, 2007 LR32, 1998 SD15
595Farra d'Isonzo Obs. in Italy, 2 in MPECs 2007-R75 & 2007-R80 -- 2007 RV17, 2007 RQ17
651Grasslands Obs. in Arizona, 5 in MPECs 2007-R75, 2007-R76, 2007-R79, 2007-R80 & 2007-R81 -- 2007 RW17, 2007 RV17, 2007 RU17, 2007 RR17, 2007 RQ17
J95Great Shefford Obs. in England, 6 in MPECs 2007-R72, 2007-R73, 2007-R75, 2007-R76, 2007-R77 & 2007-R79 -- 2007 RU17, 2007 RS17, 2007 RR17, 2007 RQ17, 2007 RO17, 2007 RJ1
H51Greiner Research Obs. in Wisconsin, 1 in MPEC 2007-R72 -- 2007 RY9
A17Guidestar Obs. in Germany, 1 in MPEC 2007-R75 -- 2007 RQ17
240Herrenberg Obs. in Germany, 4 in MPEC 2007-R72 -- 2007 HE15, 2004 OT11, 1998 SD15, 53426
704LINEAR in New Mexico, 8 in MPECs 2007-R72, 2007-R75 & 2007-R76 -- 2007 RU9, 2007 RR17, 2007 RQ17, 2007 OV, 89830, 66251, 4503, 2212
699LONEOS in Arizona, 5 in MPEC 2007-R72 -- 2007 QK2, 2007 PE8, 2007 OV, 100756, 5143
D35Lulin Minor Bodies Tracking in Taiwan, 1 in MPEC 2007-R76 -- 2007 RR17
932McCarthy Obs. in Connecticut, 1 in MPEC 2007-R72 -- 2007 RU9
711McDonald Obs. in Texas, 5 in MPECs 2007-R75, 2007-R76, 2007-R79, 2007-R80 & 2007-R81 -- 2007 RW17, 2007 RV17, 2007 RU17, 2007 RR17, 2007 RQ17
118Modra Obs. in Slovakia, 1 in MPEC 2007-R80 -- 2007 RV17
474Mt. John Obs. in New Zealand, 2 in MPECs 2007-R74 & 2007-R81 -- 2007 RW17, 2007 RP17
G96Mt. Lemmon Survey in Arizona, 12 in MPECs 2007-R72, 2007-R73, 2007-R74, 2007-R75, 2007-R77, 2007-R78, 2007-R79 & 2007-R80 -- 2007 RV9, 2007 RV17, 2007 RU17, 2007 RT17, 2007 RS17, 2007 RQ17, 2007 RP17, 2007 RO17, 68350, 26663, 141874, 115052
A24New Millennium Obs. in Italy, 1 in MPEC 2007-R72 -- 2007 PU11
A53Peschiera del Garda Obs. in Italy, 2 in MPEC 2007-R72 -- 2007 RJ1, 2007 PE8
H59Prairie Grass Obs. in Indiana, 2 in MPECs 2007-R75 & 2007-R76 -- 2007 RR17, 2007 RQ17
J41Raheny Obs., 1 in MPEC 2007-R72 -- 16636
473Remanzacco Obs. in Italy, 3 in MPECs 2007-R75, 2007-R76 & 2007-R79 -- 2007 RU17, 2007 RR17, 2007 RQ17
B38Santa Mama Obs. in Italy, 5 in MPEC 2007-R72 -- 2007 RJ1, 2007 PE8, 2007 DA41, 1998 SD15, 53426
E12Siding Spring Survey in New South Wales, 3 in MPECs 2007-R72 & 2007-R81 -- 2007 RW17, 2007 PH25, 2007 LA15
691Spacewatch 0.9m telescope in Arizona, 2 in MPEC 2007-R72 -- 2007 OV, 2000 HO14
291Spacewatch 1.8m telescope in Arizona, 10 in MPECs 2007-R72, 2007-R73, 2007-R77 & 2007-R78 -- 2007 RV9, 2007 RU9, 2007 RT9, 2007 RT17, 2007 RS17, 2007 RR9, 2007 RO17, 2007 RF2, 2005 YW55, 1998 SF35
A78Stia Obs. in Italy, 4 in MPEC 2007-R72 -- 2007 RY9, 2007 RN7, 2007 HE15, 2007 DA41
6735Jim Young via Table Mtn. Obs. in southern California, 3 in MPECs 2007-R72, 2007-R76 & 2007-R80 -- 2007 RV17, 2007 RR17, 2007 RP15

Impact Risk Monitoring  on 14 September '07

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 1929 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 RV9JPL13412011-2107672.3e-07-3.82-4.700JPL: "Analysis based on 22 observations spanning 2.9716 days (2007-Sep-10.28811 to 2007-Sep-13.25976)." Diameter approximately 0.347 km. from mean, weighted H=19.9.
NEODyS13412011-2090591.69e-07-3.84-4.440NEODyS: "Based on 22 optical observations (of which 0 are rejected as outliers) from 2007/09/10.289 to 2007/09/13.261."
2007 RU9JPL13412013-2071274.7e-06-2.46-2.790JPL: "Analysis based on 36 observations spanning 2.9974 days (2007-Sep-10.28596 to 2007-Sep-13.28338)." Diameter approximately 0.237 km. from mean, weighted H=20.8.
NEODyS13412013-2076314.41e-06-2.51-2.820NEODyS: "Based on 38 optical observations (of which 2 are rejected as outliers) from 2007/09/10.287 to 2007/09/13.284."
2007 RT12JPL1341R E M O V E DJPL: Risk listing removed at 1329 UTC.
2007 RT9JPL13412026-2107242.2e-08-5.15-5.820JPL: "Analysis based on 22 observations spanning 2.9740 days (2007-Sep-10.28434 to 2007-Sep-13.25829)." Diameter approximately 0.354 km. from mean, weighted H=19.9.
NEODyS13412024-2088272.82e-08-5.00-5.740NEODyS: "Based on 22 optical observations (of which 0 are rejected as outliers) from 2007/09/10.285 to 2007/09/13.259."

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 14 September '07

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

1929Grabbed MPEC 2007-R82 - 2005 XL80 - see above
1840Added link to news story, "The Super Bolide of September 13" - see above
Added link to news story, "Sandia sky camera records fireball" - see above
Added link to news story, "Dawn ELV status" - see above
Added link to news story, "New Mexico Fireball" - see above
1826Grabbed MPEC 2007-R73 - 2007 RO17 - see above
Grabbed MPEC 2007-R74 - 2007 RP17 - see above
Grabbed MPEC 2007-R75 - 2007 RQ17 - see above
Grabbed MPEC 2007-R76 - 2007 RR17 - see above
Grabbed MPEC 2007-R77 - 2007 RS17 - see above
Grabbed MPEC 2007-R78 - 2007 RT17 - see above
Grabbed MPEC 2007-R79 - 2007 RU17 - see above
Grabbed MPEC 2007-R80 - 2007 RV17 - see above
Grabbed MPEC 2007-R81 - 2007 RW17 - see above
1650Added link to news story, "The Prius of Space" - see above
Added link to news story, "Hawaii's observatories and their heavenly views" - see above
Added link to news story, "American Indian group protests sale of 10,000-year-old meteorite" - see above
1427Added MOS paper, "Angular Momemtum of Binary Asteroids: Implication for their possible origin" - see above
Added MOS paper, "Origin of the Ocean on the Earth: Early Evolution of Water D/H in a Hydrogen-rich Atmosphere" - see above
Added MOS paper, "Self-regulated gravitational accretion in protostellar discs" - see above
Added MOS paper, "The use of genetic algorithm to model protoplanetary discs" - see above
1342Grabbed MPEC 2007-R72 - Daily Orbit Update - see above
1341Noted that JPL has removed 2007 RT12 as an impact risk - see above
Noted that JPL has updated its 2007 RT9 risk assessment - see above
Noted that NEODyS has updated its 2007 RT9 risk assessment - see above
Noted that JPL has updated its 2007 RU9 risk assessment - see above
Noted that NEODyS has updated its 2007 RU9 risk assessment - see above
Noted that JPL has updated its 2007 RV9 risk assessment - see above
Noted that NEODyS has updated its 2007 RV9 risk assessment - see above