Contents  on 5 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 5 September '10

The MPC's NEO Confirmation Page has 20 listings: 5 new, 15 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had five new and fifteen updated listings. Of these, seventeen were "one nighters." So far The Tracking News has counted a total of 33 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 5 September '10

Minor Planet Electronic Circulars

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


MPEC 2010-R49 - "23:15 UT" - 2010 RF12


MPEC 2010-R48 - "20:41 UT" - 2010 RF12


MPEC 2010-R47 - "20:16 UT" - 2010 NZ1


MPEC 2010-R46 - "19:47 UT" - 2010 RW30


MPEC 2010-R45 - "19:40 UT" - 2010 RV30


MPEC 2010-R44 - "19:34 UT" - 2010 RU30


MPEC 2010-R43 - "19:31 UT" - 2010 RT30


MPEC 2010-R42 - "19:27 UT" - 2010 RS30


MPEC 2010-R41 - "19:13 UT" - 2010 RF12


MPEC 2010-R40 - "18:41 UT" - 2010 RR30


MPEC 2010-R39 - "18:18 UT" - 2010 RQ30


<< DOU on 5 Sept. '10 >>  MPEC 2010-R38 - "06:08 UT" - Daily Orbit Update


MPEC 2010-R37 - "05:22 UT" - 2010 RE12


MPEC 2010-R36 - "04:40 UT" - 2010 RC12


MPEC 2010-R35 - "04:37 UT" - 2010 QA5

Observers  on 5 September '10

A total of 39 observing facilities appear in today's MPECs.

CodeObserver / observatory
B03Alter Satzberg Obs. in Austria, 1 in MPEC 2010-R36 -- 2010 RC12
H21Astronomical Research Obs. Westfield in Illinois, 9 in MPECs 2010-R36, 2010-R38, 2010-R39, 2010-R40, 2010-R42, 2010-R43, 2010-R44, 2010-R45 & 2010-R46 -- 2010 RW30, 2010 RV30, 2010 RU30, 2010 RT30, 2010 RS30, 2010 RR30, 2010 RQ30, 2010 RC12, 2010 MF1
A81Balzaretto Obs. in Italy, 1 in MPEC 2010-R38 -- 2002 NE71
A74Bergen-Enkheim Obs. in Germany, 1 in MPEC 2010-R49 -- 2010 RF12
300Bisei Spaceguard Center in Japan, 2 in MPECs 2010-R38 & 2010-R48 -- 2010 RF12, 2010 RB12
160Castelmartini Obs. in Italy, 8 in MPEC 2010-R38 -- 2010 PR10, 2010 MF1, 2010 FO92, 2007 VG189, 2002 NE71, 2001 RY11, 53789, 241370
176Consell Obs. in Spain, 1 in MPEC 2010-R40 -- 2010 RR30
850Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2010-R40 -- 2010 RR30
448Desert Moon Obs. in New Mexico, 5 in MPECs 2010-R38 & 2010-R40 -- 2010 RR30, 2010 PY75, 1999 TK12, 1997 GH28, 154029
H26Doc Greiner Research Obs. (DGRO) in Wisconsin, 4 in MPECs 2010-R38, 2010-R40 & 2010-R44 -- 2010 RU30, 2010 RR30, 2010 RC12, 2010 RA
113Drebach Obs. in Germany, 2 in MPECs 2010-R36 & 2010-R38 -- 2010 RC12, 2000 PQ27
734Farpoint Obs. in Kansas, 3 in MPECs 2010-R39, 2010-R40 & 2010-R44 -- 2010 RU30, 2010 RR30, 2010 RQ30
J95Great Shefford Obs. in England, 2 in MPECs 2010-R40 & 2010-R49 -- 2010 RR30, 2010 RF12
A17Guidestar Obs. in Germany, 1 in MPEC 2010-R38 -- 2010 RT3
B86Hagen Obs. in Germany, 2 in MPECs 2010-R36 & 2010-R40 -- 2010 RR30, 2010 RC12
379Hamamatsu-Yuto Obs. in Japan, 1 in MPEC 2010-R38 -- 2002 NE71
704LINEAR in New Mexico, 20 in MPECs 2010-R36, 2010-R38, 2010-R40 & 2010-R44 -- 2010 RU30, 2010 RR30, 2010 RC12, 2010 RA, 2010 QD2, 2010 FO92, 66146, 243566, 242211, 19764, 17182, 161998, 11885, 9202, 7336, 6239, 5786, 4660, 4183, 4055
J75La Sagra Obs. in Spain, 1 in MPEC 2010-R38 -- 152952
B33Libbiano Obs. in Italy, 3 in MPECs 2010-R36, 2010-R40 & 2010-R44 -- 2010 RU30, 2010 RR30, 2010 RC12
H01Magdalena Ridge Obs. (MRO) in New Mexico, 8 in MPECs 2010-R35, 2010-R37, 2010-R41, 2010-R42, 2010-R43, 2010-R44, 2010-R45 & 2010-R46 -- 2010 RW30, 2010 RV30, 2010 RU30, 2010 RT30, 2010 RS30, 2010 RF12, 2010 RE12, 2010 QA5
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-R38 -- 2010 FC
118Modra Obs. in Slovakia, 1 in MPEC 2010-R48 -- 2010 RF12
900Moriyama Obs. in Japan, 1 in MPEC 2010-R38 -- 2010 RB12
G96Mt. Lemmon Survey (MLS) in Arizona, 12 in MPECs 2010-R35, 2010-R37, 2010-R38, 2010-R39, 2010-R40, 2010-R41, 2010-R42, 2010-R43, 2010-R44, 2010-R45 & 2010-R46 -- 2010 RW30, 2010 RV30, 2010 RU30, 2010 RT30, 2010 RS30, 2010 RR30, 2010 RQ30, 2010 RF12, 2010 RE12, 2010 QA5, 2004 RD252, 137427
675{J.R. Masiero & J.W. Dailey via Mt. Palomar in southern California, 1 in MPEC 2010-R35 -- 2010 QA5
566NEAT's GEODSS Haleakala telescope in Hawaii, 1 in MPEC 2010-R47 -- 2010 NZ1
608NEAT's USAF Haleakala telescope in Hawaii, 1 in MPEC 2010-R47 -- 2010 NZ1
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 2 in MPEC 2010-R38 -- 2005 GE59, 1997 GL3
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 1 in MPEC 2010-R40 -- 2010 RR30
854Sabino Canyon Obs. in Arizona, 1 in MPEC 2010-R40 -- 2010 RR30
B38Santa Mama Obs. in Italy, 2 in MPEC 2010-R38 -- 2001 RY11, 244977
E12Siding Spring Survey in New South Wales, 1 in MPEC 2010-R41 -- 2010 RF12
691Spacewatch 0.9m telescope in Arizona, 2 in MPEC 2010-R38 -- 1997 GH28, 29075
291Spacewatch 1.8m telescope in Arizona, 7 in MPECs 2010-R37, 2010-R39, 2010-R40, 2010-R42, 2010-R44, 2010-R45 & 2010-R47 -- 2010 RV30, 2010 RU30, 2010 RS30, 2010 RR30, 2010 RQ30, 2010 RE12, 2010 NZ1
A78Stia Obs. in Italy, 3 in MPEC 2010-R38 -- 23187, 162269, 143381
6734Mike Hicks via Table Mtn. Obs. in southern California, 2 in MPECs 2010-R36 & 2010-R40 -- 2010 RR30, 2010 RC12
I19Tanti Obs. in Argentina, 3 in MPECs 2010-R36, 2010-R39 & 2010-R40 -- 2010 RR30, 2010 RQ30, 2010 RC12
H53Thompsonville Obs. in Illinois, 6 in MPEC 2010-R38 -- 241370, 143381, 12923, 7336, 6239, 4055
C51WISE in Earth polar orbit, 1 in MPEC 2010-R35 -- 2010 QA5
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 5 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 RQ30JPL Sentry20022019-2107301.1e-07-3.78-4.070JPL: "Analysis based on 28 observations spanning 1.9798 days (2010-Sep-03.35927 to 2010-Sep-05.33905)." Diameter approximately 0.693 km. from mean, weighted H=18.4.
2010 RF12JPL Sentry23272043-2105692.8e-04-5.44-5.730JPL #2 for the day: "Analysis based on 30 observations spanning .39549 days (2010-Sep-05.40477 to 2010-Sep-05.80026)." Diameter approximately 0.008 km. from mean, weighted H=28.1.
2010 RZ11NEODyS1604206211.67e-08-8.40-8.400NEODyS: "Based on 15 optical observations (of which 0 are rejected as outliers) from 2010/09/03.359 to 2010/09/04.440."

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 5 September '10

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

2327Noted that JPL Sentry has updated its 2010 RF12 risk assessment - see above
Grabbed MPEC 2010-R49 - 2010 RF12 - see above
2108Noted that JPL Sentry has posted 2010 RF12 as an impact risk - see above
Grabbed MPEC 2010-R44 - 2010 RU30 - see above
Grabbed MPEC 2010-R45 - 2010 RV30 - see above
Grabbed MPEC 2010-R46 - 2010 RW30 - see above
Grabbed MPEC 2010-R47 - 2010 NZ1 - see above
Grabbed MPEC 2010-R48 - 2010 RF12 - see above
2002Noted that JPL Sentry has posted 2010 RQ30 as an impact risk - see above
1937Grabbed MPEC 2010-R41 - 2010 RF12 - see above
Grabbed MPEC 2010-R42 - 2010 RS30 - see above
Grabbed MPEC 2010-R43 - 2010 RT30 - see above
1907Grabbed MPEC 2010-R40 - 2010 RR30 - see above
1838Grabbed MPEC 2010-R39 - 2010 RQ30 - see above
1604Noted that NEODyS has posted 2010 RZ11 as an impact risk - see above
Grabbed MPEC 2010-R37 - 2010 RE12 - see above
Grabbed MPEC 2010-R38 - Daily Orbit Update - see above
0525Grabbed MPEC 2010-R35 - 2010 QA5 - see above
Grabbed MPEC 2010-R36 - 2010 RC12 - see above