Contents  on 7 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 7 September '10

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

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one new and two updated listings. Of these, one was a "one nighter." So far The Tracking News has counted a total of fifteen listings on the NEOCP at some point today.

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object at Suno Observatory by Birtwhistle et al.

New MPECs  on 7 September '10

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there have been twelve MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2010-R70 - "22:47 UT" - 2010 RL43


MPEC 2010-R69 - "22:39 UT" - 2010 RK43


MPEC 2010-R68 - "22:34 UT" - 2010 RJ43


MPEC 2010-R67 - "22:26 UT" - 2010 RH43


MPEC 2010-R66 - "18:51 UT" - 2010 RM42


MPEC 2010-R65 - "18:48 UT" - 2010 RL42


MPEC 2010-R64 - "18:43 UT" - 2010 RK42


MPEC 2010-R63 - "18:39 UT" - 2010 RJ42


MPEC 2010-R62 - "18:36 UT" - 2010 RH42


MPEC 2010-R61 - "18:33 UT" - 2010 RG42


MPEC 2010-R60 - "18:30 UT" - 2010 RF42


<< DOU on 7 Sept. '10 >>  MPEC 2010-R59 - "06:08 UT" - Daily Orbit Update

Observers  on 7 September '10

A total of 36 observing facilities appear in today's MPECs.

CodeObserver / observatory
B03Alter Satzberg Obs. in Austria, 1 in MPEC 2010-R69 -- 2010 RK43
H21Astronomical Research Obs. Westfield in Illinois, 13 in MPECs 2010-R59, 2010-R60, 2010-R61, 2010-R62, 2010-R63, 2010-R64, 2010-R65, 2010-R66, 2010-R68, 2010-R69 & 2010-R70 -- 2010 RS3, 2010 RM42, 2010 RL43, 2010 RL42, 2010 RK43, 2010 RK42, 2010 RJ43, 2010 RJ42, 2010 RJ4, 2010 RH42, 2010 RG42, 2010 RF42, 2010 QA5
J02Busot Obs. in Spain, 2 in MPECs 2010-R69 & 2010-R70 -- 2010 RL43, 2010 RK43
I77CEAMIG-REA in Brazil, 1 in MPEC 2010-R70 -- 2010 RL43
160Castelmartini Obs. in Italy, 11 in MPECs 2010-R59 & 2010-R69 -- 2010 RK43, 2010 PM10, 2010 NW117, 2010 MF1, 2007 SJ, 2007 EJ26, 2004 TR12, 2003 MJ4, 2002 OS4, 2000 PQ27, 1997 GL3
470Ceccano Obs. in Italy, 1 in MPEC 2010-R59 -- 2010 RF12
850Cordell-Lorenz Obs. in Tennessee, 4 in MPECs 2010-R59, 2010-R64, 2010-R66 & 2010-R70 -- 2010 RM42, 2010 RL43, 2010 RK42, 2010 RF12
448Desert Moon Obs. in New Mexico, 3 in MPEC 2010-R59 -- 2010 RX30, 2010 RS3, 2010 RJ4
113Drebach Obs. in Germany, 5 in MPECs 2010-R59, 2010-R64, 2010-R66, 2010-R69 & 2010-R70 -- 2010 RM42, 2010 RL43, 2010 RK43, 2010 RK42, 1997 GL3
157Frasso Sabino Obs. in Italy, 3 in MPEC 2010-R59 -- 2010 RC12, 2010 RA, 2010 PR66
J95Great Shefford Obs. in England, 3 in MPECs 2010-R59 & 2010-R70 -- 2010 RX30, 2010 RL43, 2010 RF12
H15ISON-NM Obs. in New Mexico, 1 in MPEC 2010-R59 -- 2010 RF12
J28Jaen Obs. in Spain, 1 in MPEC 2010-R59 -- 138847
704LINEAR in New Mexico, 27 in MPECs 2010-R59, 2010-R64, 2010-R66 & 2010-R70 -- 2010 RX30, 2010 RU30, 2010 RM42, 2010 RL43, 2010 RK42, 2010 RJ4, 2010 RF12, 2010 PM10, 2010 OL101, 2007 EJ26, 2005 RR6, 2002 DY3, 2000 PQ27, 1997 GH28, 31221, 29075, 248083, 243566, 23187, 228502, 19764, 7336, 6239, 5786, 4486, 2212, 2100
J75La Sagra Obs. in Spain, 4 in MPECs 2010-R59 & 2010-R64 -- 2010 RK42, 2010 RA, 2005 GE59, 11885
H01Magdalena Ridge Obs. (MRO) in New Mexico, 8 in MPECs 2010-R60, 2010-R61, 2010-R62, 2010-R64, 2010-R65, 2010-R66, 2010-R68 & 2010-R69 -- 2010 RM42, 2010 RL42, 2010 RK43, 2010 RK42, 2010 RJ43, 2010 RH42, 2010 RG42, 2010 RF42
B82Maidbronn Obs. in Germany, 1 in MPEC 2010-R59 -- 2010 RF12
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-R59 -- 1998 QQ52
118Modra Obs. in Slovakia, 1 in MPEC 2010-R69 -- 2010 RK43
G96Mt. Lemmon Survey (MLS) in Arizona, 9 in MPECs 2010-R59, 2010-R60, 2010-R61, 2010-R62, 2010-R63, 2010-R65, 2010-R67, 2010-R68 & 2010-R69 -- 2010 RT11, 2010 RL42, 2010 RK43, 2010 RJ43, 2010 RJ42, 2010 RH43, 2010 RH42, 2010 RG42, 2010 RF42
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 6 in MPEC 2010-R59 -- 2010 RF12, 2010 PM10, 2007 TY18, 2000 TJ1, 2000 PQ27, 1997 GL3
D29Purple Mtn. Obs. Xuyi Station in China, 1 in MPEC 2010-R59 -- 4183
H06*Rolando Ligustri in Italy via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-R66 -- 2010 RM42
H06|H. Sato in Japan via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-R70 -- 2010 RL43
473Remanzacco Obs. in Italy, 2 in MPECs 2010-R63 & 2010-R64 -- 2010 RK42, 2010 RJ42
H11Rodeo Obs. in New Mexico, 1 in MPEC 2010-R59 -- 2010 RF12
204Schiaparelli Obs. in Italy, 6 in MPEC 2010-R59 -- 2010 RF, 2010 RA, 2010 QG2, 2010 OK126, 2010 EX119, 2004 SC56
B76Schonfeld Obs. in Germany, 1 in MPEC 2010-R59 -- 152558
E12Siding Spring Survey in New South Wales, 1 in MPEC 2010-R59 -- 2010 RF12
510Siegen Obs. in Germany, 1 in MPEC 2010-R59 -- 1997 GL3
691Spacewatch 0.9m telescope in Arizona, 2 in MPECs 2010-R59 & 2010-R63 -- 2010 RJ42, 2002 DY3
291Spacewatch 1.8m telescope in Arizona, 5 in MPEC 2010-R59 -- 2010 RQ30, 2010 PU66, 2010 PD57, 2010 OD101, 2010 GH65
A97Stammersdorf Obs. in Austria, 1 in MPEC 2010-R59 -- 154029
H53Thompsonville Obs. in Illinois, 5 in MPEC 2010-R59 -- 154029, 12923, 7336, 6239, 4055
H47Vicksburg Obs. in Mississippi, 1 in MPEC 2010-R59 -- 7336
G56Walnut Creek Obs. in northern California, 2 in MPECs 2010-R69 & 2010-R70 -- 2010 RL43, 2010 RK43
718Wiggins Obs. in Utah, 1 in MPEC 2010-R69 -- 2010 RK43
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 7 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 RH43JPL Sentry2359210714.4e-10-10.04-10.00JPL: "Analysis based on 11 observations spanning .90266 days (2010-Sep-04.37279 to 2010-Sep-05.27545)." Diameter approximately 0.026 km. from mean, weighted H=25.6.
2010 RG31NEODyS15182022-2090627.01e-08-6.05-6.700NEODyS: "Based on 17 optical observations (of which 0 are rejected as outliers) from 2010/09/05.238 to 2010/09/06.263."
2010 RX30JPL Sentry15182063-210396.8e-04-4.28-4.280JPL: "Analysis based on 56 observations spanning 1.5140 days (2010-Sep-05.43059 to 2010-Sep-06.944583)." Diameter approximately 0.013 km. from mean, weighted H=27.1.
2010 RQ30JPL Sentry15182042-2097173.4e-08-4.46-4.700JPL: "Analysis based on 31 observations spanning 2.9740 days (2010-Sep-03.35927 to 2010-Sep-06.33329)." Diameter approximately 0.674 km. from mean, weighted H=18.5.
NEODyS1518204219.26e-09-4.87-4.870NEODyS: "Based on 31 optical observations (of which 0 are rejected as outliers) from 2010/09/03.360 to 2010/09/06.334."
2010 RF12JPL Sentry15182095-2110542.2e-02-3.67-3.710JPL: "Analysis based on 83 observations spanning 1.7387 days (2010-Sep-05.40477 to 2010-Sep-07.14347)." Diameter approximately 0.007 km. from mean, weighted H=28.3.
NEODyS1518R E M O V E D-
2010 QG2JPL Sentry15182051-206463.4e-06-4.99-5.020JPL: "Analysis based on 32 observations spanning 3.0580 days (2010-Aug-31.37082 to 2010-Sep-03.42881)." Diameter approximately 0.048 km. from mean, weighted H=24.2.

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 7 September '10

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

2359Noted that JPL Sentry has posted 2010 RH43 as an impact risk - see above
2302Grabbed MPEC 2010-R67 - 2010 RH43 - see above
Grabbed MPEC 2010-R68 - 2010 RJ43 - see above
Grabbed MPEC 2010-R69 - 2010 RK43 - see above
Grabbed MPEC 2010-R70 - 2010 RL43 - see above
1957Grabbed MPEC 2010-R60 - 2010 RF42 - see above
Grabbed MPEC 2010-R61 - 2010 RG42 - see above
Grabbed MPEC 2010-R62 - 2010 RH42 - see above
Grabbed MPEC 2010-R63 - 2010 RJ42 - see above
Grabbed MPEC 2010-R64 - 2010 RK42 - see above
Grabbed MPEC 2010-R65 - 2010 RL42 - see above
Grabbed MPEC 2010-R66 - 2010 RM42 - see above
1518Noted that JPL Sentry has updated its 2010 QG2 risk assessment - see above
Noted that JPL Sentry has updated its 2010 RF12 risk assessment - see above
Noted that NEODyS has removed 2010 RF12 as an impact risk - see above
Noted that NEODyS has posted 2010 RG31 as an impact risk - see above
Noted that JPL Sentry has updated its 2010 RQ30 risk assessment - see above
Noted that NEODyS has updated its 2010 RQ30 risk assessment - see above
Noted that JPL Sentry has updated its 2010 RX30 risk assessment - see above
Grabbed MPEC 2010-R59 - Daily Orbit Update - see above