Canadian NEOSSat space telescope. 
Credit: Canadian Space Agency.

Nature News reported Wednesday about NASA's planetary defense ad-hoc task force and potential problems if the NEO discovery rate "grows but precision tracking of orbits lags behind." Mentioned as coming NEO space telescopes are Canada's NEOSSat (above), now scheduled for 2011 launch, and Germany's AsteroidFinder (planned for 2013, see a March 19th article), both in Earth polar terminator orbits (like WISE, but visual band with flexible pointing), as well as the idea of a NASA infrared telescope in a Venus-like orbit. Illustration credit: Canadian Space Agency (CSA).


Contents  on 11 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 11 September '10

The MPC's NEO Confirmation Page has 23 listings: 6 new, 17 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had six new and seventeen updated listings. Of these, eleven were "one nighters." So far The Tracking News has counted a total of 25 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 11 September '10

Minor Planet Electronic Circulars

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


MPEC 2010-R86 - "23:22 UT" - Comets C/2010 B13, 2010 D5, 2010 D6, 2010 D7, 2010 D8 (SOHO)


MPEC 2010-R85 - "18:28 UT" - 2010 RJ64


MPEC 2010-R84 - "17:39 UT" - Comets C/2010 C3, 2010 C4, 2010 C5, 2010 C6, 2010 C7, 2010 C8 (SOHO)


<< DOU on 11 Sept. '10 >>  MPEC 2010-R83 - "06:09 UT" - Daily Orbit Update

Observers  on 11 September '10

A total of 21 observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 5 in MPECs 2010-R83 & 2010-R85 -- 2010 RW3, 2010 RU30, 2010 RJ64, 2010 RJ4, 2010 RA
I99Blanquita Obs. in Spain, 1 in MPEC 2010-R83 -- 152952
160Castelmartini Obs. in Italy, 7 in MPEC 2010-R83 -- 66008, 23187, 19764, 143381, 7336, 6239, 5143
703Catalina Sky Survey (CSS) in Arizona, 7 in MPEC 2010-R83 -- 2010 RL43, 2010 RJ53, 2007 TY18, 2001 PH9, 2000 PQ27, 66063, 152558
448Desert Moon Obs. in New Mexico, 4 in MPEC 2010-R83 -- 2010 RM42, 2010 RJ42, 2010 QD2, 2005 AC
113Drebach Obs. in Germany, 5 in MPEC 2010-R83 -- 2010 RK43, 2010 PR10, 2010 NW117, 2010 FO92, 2007 VG189
J04ESA Optical Ground Station in the Canary Islands, 1 in MPEC 2010-R85 -- 2010 RJ64
415Kambah Obs. in the Australian Capital Territory, 1 in MPEC 2010-R83 -- 2010 RF12
704LINEAR in New Mexico, 12 in MPEC 2010-R83 -- 2010 RM42, 2010 RK42, 2010 PM10, 2010 NW117, 2007 SJ, 31221, 219071, 152558, 143381, 138404, 9202, 7336
J75La Sagra Obs. in Spain, 4 in MPEC 2010-R83 -- 1997 GH28, 19764, 17182, 6239
H13Lenomiya Obs. in Arizona, 1 in MPEC 2010-R83 -- 2010 RL43
H01Magdalena Ridge Obs. (MRO) in New Mexico, 4 in MPECs 2010-R83 & 2010-R85 -- 2010 RJ64, 2010 RH43, 2010 RG31, 2010 PS65
152Moletai Obs. in Lithuania, 1 in MPEC 2010-R83 -- 19764
474Mt. John Obs. in New Zealand, 2 in MPECs 2010-R83 & 2010-R85 -- 2010 RJ64, 2010 RB
G96Mt. Lemmon Survey (MLS) in Arizona, 2 in MPEC 2010-R83 -- 2007 BG49, 19764
473Remanzacco Obs. in Italy, 1 in MPEC 2010-R85 -- 2010 RJ64
E12Siding Spring Survey (SSS) in New South Wales, 2 in MPEC 2010-R83 -- 2010 RA, 2008 AT28
2492LASCO Coronagraph 2 (SOHO C2) aboard the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 4 in MPECs 2010-R84 & 2010-R86 -- C/2010 D5, C/2010 C8, C/2010 C7, C/2010 C6
2493LASCO Coronagraph 3 (SOHO C3) aboard the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 7 in MPECs 2010-R84 & 2010-R86 -- C/2010 D8, C/2010 D7, C/2010 D6, C/2010 C5, C/2010 C4, C/2010 C3, C/2010 B13
291Spacewatch 1.8m telescope in Arizona, 6 in MPECs 2010-R83 & 2010-R85 -- 2010 RQ30, 2010 RJ64, 2010 RH43, 2010 QD2, 2010 OD101, 2010 KH
H10Tzec Maun Obs. Mayhill in New Mexico, 1 in MPEC 2010-R83 -- 154029
G56Walnut Creek Obs. in northern California, 2 in MPEC 2010-R83 -- 2010 RK43, 2010 PP2
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 11 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 RK53NEODyS15302013-2036147.87e-05-4.58-4.700NEODyS: "Based on 15 optical observations (of which 0 are rejected as outliers) from 2010/09/10.417 to 2010/09/10.507."
2010 RF12JPL Sentry15302095-2110335.5e-02-3.31-3.310JPL: "Analysis based on 316 observations spanning 3.1100 days (2010-Sep-05.40477 to 2010-Sep-08.514787)." Diameter approximately 0.007 km. from mean, weighted H=28.4.
NEODyS15302095-210095.22e-02-3.33-3.330NEODyS: "Based on 318 optical observations (of which 3 are rejected as outliers) from 2010/09/05.406 to 2010/09/08.516."
2010 QG2NEODyS21312051-207063.76e-06-4.95-4.980NEODyS: "Based on 32 optical observations (of which 0 are rejected as outliers) from 2010/08/31.372 to 2010/09/03.430."
2010 PS65JPL Sentry1530210211.6e-07-6.99-6.990JPL: "Analysis based on 58 observations spanning 28.086 days (2010-Aug-13.29423 to 2010-Sep-10.38045)." Diameter approximately 0.039 km. from mean, weighted H=24.7.

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 11 September '10

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

2359Grabbed MPEC 2010-R86 - Comets C/2010 B13, 2010 D5, 2010 D6, 2010 D7, 2010 D8 (SOHO) - see above
2131Noted that NEODyS has updated its 2010 QG2 risk assessment - see above
1903Grabbed MPEC 2010-R85 - 2010 RJ64 - see above
1807Grabbed MPEC 2010-R84 - Comets C/2010 C3, 2010 C4, 2010 C5, 2010 C6, 2010 C7, 2010 C8 (SOHO) - see above
1530Noted that JPL Sentry has updated its 2010 PS65 risk assessment - see above
Noted that JPL Sentry has updated its 2010 RF12 risk assessment - see above
Noted that NEODyS has updated its 2010 RF12 risk assessment - see above
Noted that NEODyS has posted 2010 RK53 as an impact risk - see above
Grabbed MPEC 2010-R83 - Daily Orbit Update - see above