Jupiter impacts from July 2009 to August 2010. 
Credit: Anthony Wesley (left & middle) and Masayuki Tachikawa.

News items Thursday from NASA and Sandia Lab revisited amateur-discovered Jupiter impacts, mainly this year's June 3rd and August 20th fireballs (middle and right above), but also last year's July 9th impact plume (left). One conclusion is that fireballs might be visible "a few times each month." Image credits: left Anthony Wesley and middle to right Wesley and Masayuki Tachikawa.


Contents  on 12 September '10

Resources:

The latest A/CC news is available via framed access, RSS news feed RSS news feed, or redirection. - Note: A/CC has a main Web site and also a backup site with its own duplicate RSS news feed.

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 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.

NEOCP Activity  on 12 September '10

The MPC's NEO Confirmation Page has 12 listings: 3 new, 9 updated

When last checked at 2334 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had three new and nine updated listings. Of these, five were "one nighters." The Tracking News counted a total of 27 listings on the NEOCP at some point on this day.

New MPECs  on 12 September '10

Minor Planet Electronic Circulars

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


MPEC 2010-R101 - "23:55 UT" - 2010 RS80


MPEC 2010-R100 - "23:16 UT" - 2010 RR80


MPEC 2010-R99 - "23:01 UT" - Comet C/2010 R1 (LINEAR)


MPEC 2010-R98 - "20:24 UT" - 2010 RQ80


MPEC 2010-R97 - "20:13 UT" - 2010 RP80


MPEC 2010-R96 - "19:07 UT" - 2010 RO80


MPEC 2010-R95 - "18:55 UT" - 2010 RN80


MPEC 2010-R94 - "18:05 UT" - 2010 RM80


MPEC 2010-R93 - "15:54 UT" - Comets C/2010 E7, 2010 E8, 2010 E9, 2010 E10, 2010 E11, 2010 E12, 2010 E13


MPEC 2010-R92 - "14:00 UT" - 2009 YE7


<< DOU on 12 Sept. '10 >>  MPEC 2010-R91 - "06:09 UT" - Daily Orbit Update


MPEC 2010-R90 - "04:41 UT" - 2010 RQ64


MPEC 2010-R89 - "03:32 UT" - 2010 RP64


MPEC 2010-R88 - "02:36 UT" - 2010 PK66, 2010 PL66


MPEC 2010-R87 - "00:25 UT" - 2010 RK64

Observers  on 12 September '10

A total of 47 observing facilities appeared in this day's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 6 in MPECs 2010-R94, 2010-R96, 2010-R97, 2010-R98, 2010-R100 & 2010-R101 -- 2010 RS80, 2010 RR80, 2010 RQ80, 2010 RP80, 2010 RO80, 2010 RM80
J51Atlante Obs. in the Canary Islands, 1 in MPEC 2010-R91 -- 143381
300Bisei Spaceguard Center in Japan, 4 in MPECs 2010-R90, 2010-R96, 2010-R97 & 2010-R101 -- 2010 RS80, 2010 RQ64, 2010 RP80, 2010 RO80
I99Blanquita Obs. in Spain, 2 in MPEC 2010-R91 -- 4197, 2212
I77CEAMIG-REA in Brazil, 1 in MPEC 2010-R87 -- 2010 RK64
160Castelmartini Obs. in Italy, 6 in MPECs 2010-R91 & 2010-R99 -- C/2010 R1, 2010 MF1, 53789, 242211, 154029, 4486
703Catalina Sky Survey (CSS) in Arizona, 11 in MPECs 2010-R90, 2010-R91, 2010-R94, 2010-R96 & 2010-R101 -- 2010 RS80, 2010 RQ64, 2010 RO80, 2010 RM80, 2010 RL43, 65679, 17182, 6239, 5143, 4660, 4197
807Cerro Tololo Inter-American Obs. (CTIO) in Chile, 2 in MPEC 2010-R88 -- 2010 PL66, 2010 PK66
G58Chabot Obs. in northern California, 2 in MPECs 2010-R94 & 2010-R98 -- 2010 RQ80, 2010 RM80
448Desert Moon Obs. in New Mexico, 4 in MPEC 2010-R91 -- 2010 RQ30, 2010 RJ4, 2006 FE, 2002 GM9
H26Doc Greiner Research Obs. in Wisconsin, 1 in MPEC 2010-R97 -- 2010 RP80
113Drebach Obs. in Germany, 5 in MPECs 2010-R90, 2010-R91, 2010-R96, 2010-R97 & 2010-R101 -- 2010 RS80, 2010 RQ64, 2010 RP80, 2010 RO80, 2010 RK43
J04ESA Optical Ground Station (ESA OGS) in the Canary Islands, 3 in MPECs 2010-R87, 2010-R89 & 2010-R98 -- 2010 RQ80, 2010 RP64, 2010 RK64
114Engelhardt Obs. Zelenchukskaya Station in Karachay-Cherkessia, 1 in MPEC 2010-R95 -- 2010 RN80
151Eschenberg Obs. in Switzerland, 5 in MPECs 2010-R91 & 2010-R96 -- 2010 RO80, 2010 MF1, 2007 SJ, 2005 GE59, 1997 GL3
734Farpoint Obs. in Kansas, 2 in MPECs 2010-R94 & 2010-R101 -- 2010 RS80, 2010 RM80
157Frasso Sabino Obs. in Italy, 1 in MPEC 2010-R97 -- 2010 RP80
B21Gaisberg Obs. in Austria, 1 in MPEC 2010-R100 -- 2010 RR80
372Geisei Obs. in Japan, 1 in MPEC 2010-R99 -- C/2010 R1
651Grasslands Obs. in Arizona, 3 in MPECs 2010-R89, 2010-R90 & 2010-R101 -- 2010 RS80, 2010 RQ64, 2010 RP64
J95Great Shefford Obs. in England, 8 in MPECs 2010-R89, 2010-R90, 2010-R91, 2010-R94, 2010-R96, 2010-R97, 2010-R100 & 2010-R101 -- 2010 RS80, 2010 RR80, 2010 RQ64, 2010 RP80, 2010 RP64, 2010 RO80, 2010 RM80, 2010 RJ53
379Hamamatsu-Yuto Obs. in Japan, 3 in MPEC 2010-R91 -- 1997 GL3, 19764, 152558
H15ISON-NM Obs. in New Mexico, 1 in MPEC 2010-R95 -- 2010 RN80
704LINEAR in New Mexico, 14 in MPECs 2010-R89, 2010-R91, 2010-R96, 2010-R97 & 2010-R101 -- 2010 RS80, 2010 RP80, 2010 RP64, 2010 RO80, 2010 RM42, 2010 RK42, 2010 PR10, 87311, 66146, 138404, 9202, 7336, 6239, 4055
304Las Campanas Obs. in Chile, 1 in MPEC 2010-R92 -- 2009 YE7
H01Magdalena Ridge Obs. (MRO) in New Mexico, 2 in MPECs 2010-R97 & 2010-R98 -- 2010 RQ80, 2010 RP80
B90Malina River Obs. in Italy, 2 in MPECs 2010-R97 & 2010-R101 -- 2010 RS80, 2010 RP80
G96Mt. Lemmon Survey (MLS) in Arizona, 5 in MPECs 2010-R91, 2010-R94, 2010-R98 & 2010-R100 -- 2010 RR80, 2010 RQ80, 2010 RM80, 2010 RL43, 2009 YG
J93Mt. Tuffley Obs. in England, 5 in MPEC 2010-R91 -- 154029, 152558, 6239, 4055, 3122
A53Peschiera del Garda Obs. in Italy, 2 in MPEC 2010-R91 -- 152558, 143381
H06RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-R99 -- C/2010 R1
H06*Rolando Ligustri in Italy via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-R97 -- 2010 RP80
D90.Cristovao Jacques in Brazil via RAS Obs. Moorook in South Australia, 1 in MPEC 2010-R95 -- 2010 RN80
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 1 in MPEC 2010-R95 -- 2010 RN80
473Remanzacco Obs. in Italy, 1 in MPEC 2010-R97 -- 2010 RP80
204Schiaparelli Obs. in Italy, 4 in MPECs 2010-R90, 2010-R96, 2010-R97 & 2010-R101 -- 2010 RS80, 2010 RQ64, 2010 RP80, 2010 RO80
E12Siding Spring Survey (SSS) in New South Wales, 4 in MPECs 2010-R87, 2010-R90, 2010-R91 & 2010-R100 -- 2010 RR80, 2010 RQ64, 2010 RK64, 2002 XH4
510Siegen Obs. in Germany, 1 in MPEC 2010-R91 -- 1997 GL3
2492LASCO Coronagraph 2 (SOHO C2) aboard the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 4 in MPEC 2010-R93 -- C/2010 E13, C/2010 E12, C/2010 E11, C/2010 E10
2493LASCO Coronagraph 3 (SOHO C3) aboard the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 7 in MPEC 2010-R93 -- C/2010 E9, C/2010 E8, C/2010 E7, C/2010 E13, C/2010 E12, C/2010 E11, C/2010 E10
587Sormano Obs. in Italy, 2 in MPECs 2010-R90 & 2010-R101 -- 2010 RS80, 2010 RQ64
691Spacewatch 0.9m telescope in Arizona, 4 in MPEC 2010-R91 -- 2010 PM10, 2002 TC70, 162913, 154144
291Spacewatch 1.8m telescope in Arizona, 9 in MPECs 2010-R91 & 2010-R98 -- 2010 RV30, 2010 RQ80, 2010 RQ30, 2010 RJ42, 2010 OF101, 2010 LT108, 2006 XD2, 2006 VW2, 11885
6734Mike Hicks via Table Mtn. Obs. in southern California, 1 in MPEC 2010-R97 -- 2010 RP80
H53Thompsonville Obs. in Illinois, 2 in MPEC 2010-R91 -- 12923, 4055
H10Tzec Maun Obs. Mayhill in New Mexico, 1 in MPEC 2010-R97 -- 2010 RP80
D96Tzec Maun Obs. Moorook in South Australia, 1 in MPEC 2010-R95 -- 2010 RN80
A48Verona Obs. in Italy, 1 in MPEC 2010-R91 -- 2010 PR10
C51WISE in Earth polar orbit, 3 in MPEC 2010-R91 -- 2010 QE2, 243566, 162463
G56Walnut Creek Obs. in northern California, 1 in MPEC 2010-R91 -- 2010 RJ4
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 12 September '10

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2359 UTC)
See the CRT page for a list of all objects rated recently as risks and our ephemerides page for a list of risk-listed objects under current observation.
The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Both also post impact solutions beyond 100 years for a few special objects.
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
2010 RM80JPL Sentry20082074-2110201.8e-05-6.59-7.170JPL: "Analysis based on 23 observations spanning 1.0349 days (2010-Sep-11.28495 to 2010-Sep-12.319812)." Diameter approximately 0.009 km. from mean, weighted H=27.9.
2010 QE2NEODyS1524R E M O V E D-

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 a variant 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" to learn more.

Chronology  on 12 September '10

Times are UTC for when items were noted or added by The Tracking News.

0003 9/13Grabbed MPEC 2010-R101 - 2010 RS80 - see above
2334Grabbed MPEC 2010-R99 - Comet C/2010 R1 (LINEAR) - see above
Grabbed MPEC 2010-R100 - 2010 RR80 - see above
2101Grabbed MPEC 2010-R97 - 2010 RP80 - see above
Grabbed MPEC 2010-R98 - 2010 RQ80 - see above
2008Noted that JPL Sentry has posted 2010 RM80 as an impact risk - see above
1915Grabbed MPEC 2010-R94 - 2010 RM80 - see above
Grabbed MPEC 2010-R95 - 2010 RN80 - see above
Grabbed MPEC 2010-R96 - 2010 RO80 - see above
1624Grabbed MPEC 2010-R93 - Comets C/2010 E7, 2010 E8, 2010 E9, 2010 E10, 2010 E11, 2010 E12, 2010 E13 - see above
1524Noted that NEODyS has removed 2010 QE2 as an impact risk - see above
Grabbed MPEC 2010-R91 - Daily Orbit Update - see above
Grabbed MPEC 2010-R92 - 2009 YE7 - see above
0508Grabbed MPEC 2010-R90 - 2010 RQ64 - see above
0340Grabbed MPEC 2010-R89 - 2010 RP64 - see above
0251Grabbed MPEC 2010-R88 - 2010 PK66, 2010 PL66 - see above
0028Grabbed MPEC 2010-R87 - 2010 RK64 - see above