Contents  on 16 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 16 September '10

The MPC's NEO Confirmation Page has 20 listings: 8 new, 12 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had eight new and twelve updated listings. Of these, fifteen were "one nighters." So far The Tracking News has counted a total of 30 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 16 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-S04 - "20:35 UT" - 2010 RD130


MPEC 2010-S03 - "20:27 UT" - 2010 RC130


MPEC 2010-S02 - "20:20 UT" - 2010 RB130


<< DOU on 16 Sept. '10 >>  MPEC 2010-S01 - "06:10 UT" - Daily Orbit Update

Observers  on 16 September '10

A total of 24 observing facilities appear in today's MPECs.

CodeObserver / observatory
834AAAA Buenos Aires Obs. in Argentina, 1 in MPEC 2010-S01 -- 2010 LY63
A50Andrushivka Obs. in the Ukraine, 1 in MPEC 2010-S01 -- 2212
H21Astronomical Research Obs. Westfield in Illinois, 8 in MPECs 2010-S01 & 2010-S02 -- 2010 RS80, 2010 RP80, 2010 RM80, 2010 RM42, 2010 RB130, 2010 RA91, 2010 RA, 2010 PS65
300Bisei Spaceguard Center in Japan, 2 in MPECs 2010-S02 & 2010-S03 -- 2010 RC130, 2010 RB130
160Castelmartini Obs. in Italy, 1 in MPEC 2010-S01 -- 85989
703Catalina Sky Survey (CSS) in Arizona, 11 in MPECs 2010-S01 & 2010-S02 -- 2010 RB130, 2010 FO92, 2007 SJ, 2002 TY57, 87311, 230118, 228502, 4486, 3552, 3122, 2212
734Farpoint Obs. in Kansas, 1 in MPEC 2010-S03 -- 2010 RC130
J95Great Shefford Obs. in England, 2 in MPECs 2010-S01 & 2010-S02 -- 2010 RM122, 2010 RB130
G89Kachina Obs. in Arizona, 1 in MPEC 2010-S01 -- 2010 RA91
704LINEAR in New Mexico, 5 in MPECs 2010-S01 & 2010-S03 -- 2010 RJ4, 2010 RC130, 2006 BN6, 138847, 4197
A70Lumijoki Obs. in Finland, 1 in MPEC 2010-S01 -- 2010 RK43
5682David Tholen's team on Mauna Kea in Hawaii, 2 in MPEC 2010-S01 -- 2010 HZ104, 2007 GG
G96Mt. Lemmon Survey (MLS) in Arizona, 4 in MPECs 2010-S01 & 2010-S04 -- 2010 RJ42, 2010 RD130, 241596, 154991
C27Pallerols Obs. in Spain, 1 in MPEC 2010-S01 -- 85989
H23Pear Tree Obs. in Florida, 2 in MPEC 2010-S01 -- 2010 MF1, 6239
H06*Rolando Ligustri in Italy via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-S03 -- 2010 RC130
854Sabino Canyon Obs. in Arizona, 2 in MPECs 2010-S02 & 2010-S03 -- 2010 RC130, 2010 RB130
B38Santa Mama Obs. in Italy, 7 in MPEC 2010-S01 -- 2010 RN80, 2010 NW117, 2010 LY63, 2009 CQ5, 85989, 53789, 4055
691Spacewatch 0.9m telescope in Arizona, 2 in MPEC 2010-S01 -- 2010 PS66, 4401
291Spacewatch 1.8m telescope in Arizona, 11 in MPEC 2010-S01 -- 2010 RS30, 2010 RQ30, 2010 RM80, 2010 RL42, 2010 RE12, 2010 RD, 2010 RA91, 2010 PS66, 2010 OE22, 2005 YY36, 2005 UL
A78Stia Obs. in Italy, 3 in MPEC 2010-S01 -- 2010 RN80, 2010 RK43, 138847
A98Taurus-1 Obs. in Belarus, 2 in MPEC 2010-S01 -- 2000 PQ27, 1997 GL3
H10Tzec Maun Obs. Mayhill in New Mexico, 1 in MPEC 2010-S03 -- 2010 RC130
A92Urseanu Obs. in Romania, 1 in MPEC 2010-S01 -- 154029
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 16 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 RC130JPL Sentry2207208423.2e-07-5.08-5.320JPL: "Analysis based on 21 observations spanning 1.2505 days (2010-Sep-15.21025 to 2010-Sep-16.46079)." Diameter approximately 0.160 km. from mean, weighted H=21.6.
2010 RA91JPL Sentry14592083-2109134.6e-08-6.90-7.610JPL: "Analysis based on 30 observations spanning 2.1084 days (2010-Sep-13.19605 to 2010-Sep-15.304486)." Diameter approximately 0.070 km. from mean, weighted H=23.4.
NEODyS14592073-208872.7e-09-8.01-8.330NEODyS: "Based on 30 optical observations (of which 0 are rejected as outliers) from 2010/09/13.197 to 2010/09/15.305."
2010 RM80JPL Sentry14592085-2110201.8e-05-6.67-7.250JPL: "Analysis based on 35 observations spanning 4.0601 days (2010-Sep-11.28495 to 2010-Sep-15.34508)." Diameter approximately 0.008 km. from mean, weighted H=28.0.
NEODyS14592085-209034.64e-07-8.14-8.160NEODyS: "Based on 35 optical observations (of which 0 are rejected as outliers) from 2010/09/11.286 to 2010/09/15.346."

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 16 September '10

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

2207Noted that JPL Sentry has posted 2010 RC130 as an impact risk - see above
2120Grabbed MPEC 2010-S02 - 2010 RB130 - see above
Grabbed MPEC 2010-S03 - 2010 RC130 - see above
Grabbed MPEC 2010-S04 - 2010 RD130 - see above
1459Noted 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 RM80 risk assessment - see above
Noted that NEODyS has updated its 2010 RM80 risk assessment - see above
Grabbed MPEC 2010-S01 - Daily Orbit Update - see above