Contents  on 17 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 17 September '10

The MPC's NEO Confirmation Page has 15 listings: 7 new, 8 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had seven new and eight updated listings. Of these, eleven were "one nighters." So far The Tracking News has counted a total of 28 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 17 September '10

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been eleven MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2010-S15 - "23:22 UT" - 2010 RG137


MPEC 2010-S14 - "16:03 UT" - 2010 SJ


MPEC 2010-S13 - "15:50 UT" - 2010 SH


MPEC 2010-S12 - "15:44 UT" - 2010 RK135


MPEC 2010-S11 - "14:19 UT" - Comet P/2010 R2 (La Sagra)


<< DOU on 17 Sept. '10 >>  MPEC 2010-S10 - "06:10 UT" - Daily Orbit Update


MPEC 2010-S09 - "01:28 UT" - 2010 SF


MPEC 2010-S08 - "01:21 UT" - 2010 SE


MPEC 2010-S07 - "01:18 UT" - 2010 SD


MPEC 2010-S06 - "01:16 UT" - 2010 SC


MPEC 2010-S05 - "01:13 UT" - 2010 SB

Observers  on 17 September '10

A total of 25 observing facilities appear in today's MPECs.

CodeObserver / observatory
J16An Carraig Obs. in Northern Ireland, 1 in MPEC 2010-S10 -- 154029
H21Astronomical Research Obs. Westfield in Illinois, 9 in MPECs 2010-S10, 2010-S11 & 2010-S14 -- 2010 SJ, 2010 RX45, 2010 RT80, 2010 RQ64, 2010 RP64, 2010 RN80, 2010 RK53, P/2010 R2, 2010 PQ2
300Bisei Spaceguard Center in Japan, 1 in MPEC 2010-S15 -- 2010 RG137
160Castelmartini Obs. in Italy, 13 in MPEC 2010-S10 -- 2010 PM10, 2005 GE59, 2003 MJ4, 2002 EY2, 89830, 66146, 242211, 154029, 153842, 152952, 4954, 4197, 2100
703Catalina Sky Survey (CSS) in Arizona, 11 in MPECs 2010-S08, 2010-S09, 2010-S10, 2010-S11 & 2010-S14 -- 2010 SJ, 2010 SF, 2010 SE, 2010 RM42, 2010 RK42, P/2010 R2, 2003 FC5, 66008, 243147, 242211, 3200
448Desert Moon Obs. in New Mexico, 4 in MPEC 2010-S10 -- 2010 RM42, 2010 RL43, 2010 QD2, 139345
J95Great Shefford Obs. in England, 6 in MPECs 2010-S05, 2010-S06, 2010-S07, 2010-S08, 2010-S09, 2010-S10 & 2010-S11 -- 2010 SF, 2010 SE, 2010 SD, 2010 SC, 2010 SB, P/2010 R2
A17Guidestar Obs. in Germany, 1 in MPEC 2010-S15 -- 2010 RG137
379Hamamatsu-Yuto Obs. in Japan, 5 in MPEC 2010-S10 -- 2010 LY63, 2005 GE59, 1997 GL3, 19764, 2212
695]Mark Trueblood via Kitt Peak Natl. Obs. in Arizona, 1 in MPEC 2010-S10 -- 2010 HQ80
704LINEAR in New Mexico, 11 in MPECs 2010-S10 & 2010-S11 -- 2010 RJ4, 2010 RC130, P/2010 R2, 2006 BN6, 2005 GE59, 1999 TB5, 243147, 219071, 138847, 12538, 4197
J75La Sagra Obs. in Spain, 1 in MPEC 2010-S11 -- P/2010 R2
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-S10 -- 190208
G96Mt. Lemmon Survey (MLS) in Arizona, 11 in MPECs 2010-S05, 2010-S06, 2010-S07, 2010-S10, 2010-S12, 2010-S13 & 2010-S15 -- 2010 SH, 2010 SD, 2010 SC, 2010 SB, 2010 RP80, 2010 RK135, 2010 RG137, 2010 RF, 2010 RE12, 2007 SJ, 6611
J93Mt. Tuffley Obs. in England, 7 in MPEC 2010-S10 -- 19764, 154029, 152558, 6239, 4954, 3122, 2212
I89Nerpio Obs., 2 in MPEC 2010-S10 -- 19764, 6239
J41Raheny Obs. in Ireland, 1 in MPEC 2010-S15 -- 2010 RG137
854Sabino Canyon Obs. in Arizona, 1 in MPEC 2010-S14 -- 2010 SJ
E12Siding Spring Survey (SSS) in New South Wales, 2 in MPEC 2010-S10 -- 2010 RT80, 2010 RO82
691Spacewatch 0.9m telescope in Arizona, 7 in MPEC 2010-S10 -- 2010 RQ64, 2010 PM10, 2010 OD101, 2007 BG49, 2001 XD, 52768, 162913
291Spacewatch 1.8m telescope in Arizona, 14 in MPECs 2010-S10, 2010-S11 & 2010-S15 -- 2010 RR80, 2010 RQ80, 2010 RQ30, 2010 RM80, 2010 RJ43, 2010 RG137, 2010 RD, 2010 RC, 2010 RA91, P/2010 R2, 2010 OL101, 2010 OF101, 2010 OE22, 2010 NZ1
I93St. Pardon de Conques Obs., 1 in MPEC 2010-S10 -- 1997 GH28
A92Urseanu Obs. in Romania, 1 in MPEC 2010-S10 -- 152558
H47Vicksburg Obs. in Mississippi, 3 in MPEC 2010-S10 -- 1997 GL3, 19764, 4197
C51WISE in Earth polar orbit, 3 in MPEC 2010-S10 -- 2010 OC, 164121, 1566
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 17 September '10

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS at 2358 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 SDNEODyS18202014-20901971.25e-08-6.97-8.010NEODyS: "Based on 7 optical observations (of which 0 are rejected as outliers) from 2010/09/16.390 to 2010/09/16.897."
JPL Sentry15002014-21073311.7e-07-6.18-7.350JPL: "Analysis based on 7 observations spanning .50771 days (2010-Sep-16.38875 to 2010-Sep-16.89646)." Diameter approximately 0.044 km. from mean, weighted H=24.4.
2010 RK135JPL Sentry1820209211.5e-07-7.44-7.440JPL: "Analysis based on 15 observations spanning 2.0122 days (2010-Sep-15.36462 to 2010-Sep-17.37682)." Diameter approximately 0.025 km. from mean, weighted H=25.6.
2010 RD130NEODyS15002021-208931.95e-10-9.28-9.550NEODyS: "Based on 8 optical observations (of which 0 are rejected as outliers) from 2010/09/15.361 to 2010/09/16.345."
JPL Sentry00372021-2110134.4e-09-8.06-8.250JPL: "Analysis based on 8 observations spanning .98360 days (2010-Sep-15.3606 to 2010-Sep-16.3442)." Diameter approximately 0.034 km. from mean, weighted H=25.0.
2010 RC130JPL Sentry1500208423.3e-07-5.03-5.300JPL: "Analysis based on 26 observations spanning 1.2505 days (2010-Sep-15.21025 to 2010-Sep-16.46079)." Diameter approximately 0.170 km. from mean, weighted H=21.5.
NEODyS1500208421.6e-07-5.38-5.610NEODyS: "Based on 26 optical observations (of which 0 are rejected as outliers) from 2010/09/15.211 to 2010/09/16.462."
2010 RA91JPL Sentry15002083-210942.1e-08-7.26-7.340JPL: "Analysis based on 33 observations spanning 3.1041 days (2010-Sep-13.19605 to 2010-Sep-16.30012)." Diameter approximately 0.068 km. from mean, weighted H=23.5.
NEODyS15002073-208325.83e-10-8.73-8.820NEODyS: "Based on 33 optical observations (of which 0 are rejected as outliers) from 2010/09/13.197 to 2010/09/16.301."
2010 RM80JPL Sentry15002085-2110181.7e-05-6.69-7.230JPL: "Analysis based on 38 observations spanning 4.9620 days (2010-Sep-11.28495 to 2010-Sep-16.24692)." Diameter approximately 0.009 km. from mean, weighted H=28.0.
NEODyS1500208514.3e-07-8.17-8.170NEODyS: "Based on 38 optical observations (of which 0 are rejected as outliers) from 2010/09/11.286 to 2010/09/16.248."
2010 RK53NEODyS15002024-203341.54e-05-5.93-5.950NEODyS: "Based on 18 optical observations (of which 0 are rejected as outliers) from 2010/09/10.417 to 2010/09/15.241."

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 17 September '10

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

2359Grabbed MPEC 2010-S15 - 2010 RG137 - see above
1820Noted that JPL Sentry has posted 2010 RK135 as an impact risk - see above
Noted that NEODyS has posted 2010 SD as an impact risk - see above
Grabbed MPEC 2010-S12 - 2010 RK135 - see above
Grabbed MPEC 2010-S13 - 2010 SH - see above
Grabbed MPEC 2010-S14 - 2010 SJ - see above
1500Noted that JPL Sentry has updated its 2010 RA91 risk assessment - see above
Noted that NEODyS has updated its 2010 RA91 risk assessment - see above
Noted that JPL Sentry has updated its 2010 RC130 risk assessment - see above
Noted that NEODyS has posted 2010 RC130 as an impact risk - see above
Noted that NEODyS has posted 2010 RD130 as an impact risk - see above
Noted that NEODyS has updated its 2010 RK53 risk assessment - see above
Noted that JPL Sentry has updated its 2010 RM80 risk assessment - see above
Noted that NEODyS has updated its 2010 RM80 risk assessment - see above
Noted that JPL Sentry has posted 2010 SD as an impact risk - see above
Grabbed MPEC 2010-S10 - Daily Orbit Update - see above
Grabbed MPEC 2010-S11 - Comet P/2010 R2 (La Sagra) - see above
0204Grabbed MPEC 2010-S05 - 2010 SB - see above
Grabbed MPEC 2010-S06 - 2010 SC - see above
Grabbed MPEC 2010-S07 - 2010 SD - see above
Grabbed MPEC 2010-S08 - 2010 SE - see above
Grabbed MPEC 2010-S09 - 2010 SF - see above
0037Noted that JPL Sentry has posted 2010 RD130 as an impact risk - see above