Contents  on 17 October '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 October '10

The MPC's NEO Confirmation Page has 14 listings: 6 new, 8 updated

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

Minor Planet Electronic Circulars

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


MPEC 2010-U12 - "22:00 UT" - 2010 UE


MPEC 2010-U11 - "20:43 UT" - 2010 UD


MPEC 2010-U10 - "20:02 UT" - 2010 UC


<< DOU on 17 Oct. '10 >>  MPEC 2010-U09 - "06:09 UT" - Daily Orbit Update


MPEC 2010-U08 - "02:35 UT" - 2010 UB

Observers  on 17 October '10

A total of 30 observing facilities appear in today's MPECs.

CodeObserver / observatory
834AAAA Buenos Aires Obs. in Argentina, 1 in MPEC 2010-U09 -- 12923
H21Astronomical Research Obs. Westfield in Illinois, 20 in MPECs 2010-U09, 2010-U10, 2010-U11 & 2010-U12 -- 2010 UE, 2010 UD, 2010 UC, 2010 TZ54, 2010 TX54, 2010 TW54, 2010 TV54, 2010 TU54, 2010 TQ54, 2010 TP55, 2010 TN55, 2010 TN54, 2010 TK19, 2010 TH54, 2010 TF55, 2010 TF54, 2010 TE55, 2010 TC54, 2010 TA55, 2010 RF
J51Atlante Obs. in the Canary Islands, 3 in MPEC 2010-U09 -- 2010 PM10, 2010 LY63, 137032
300Bisei Spaceguard Center in Japan, 1 in MPEC 2010-U11 -- 2010 UD
I99Blanquita Obs. in Spain, 4 in MPEC 2010-U09 -- 2010 RP80, 2010 RN80, 2010 PM10, 137032
703Catalina Sky Survey in Arizona, 1 in MPEC 2010-U10 -- 2010 UC
113Drebach Obs. in Germany, 1 in MPEC 2010-U11 -- 2010 UD
639Dresden Obs. in Germany, 1 in MPEC 2010-U09 -- 2010 RN80
J04ESA Optical Ground Station (ESA OGS) in the Canary Islands, 2 in MPEC 2010-U09 -- 2010 TV149, 2010 TU149
J95Great Shefford Obs. in England, 3 in MPECs 2010-U08, 2010-U10 & 2010-U11 -- 2010 UD, 2010 UC, 2010 UB
A17Guidestar Obs. in Germany, 1 in MPEC 2010-U11 -- 2010 UD
951Highworth Obs. in England, 1 in MPEC 2010-U09 -- 2000 EY106
J28Jaen Obs. in Spain, 1 in MPEC 2010-U11 -- 2010 UD
695^Spacewatch via Kitt Peak Natl. Obs. (KPNO) in Arizona, 4 in MPEC 2010-U09 -- 2010 MR87, 2010 KK127, 2005 WE, 2004 EB
704LINEAR in New Mexico, 10 in MPECs 2010-U08 & 2010-U09 -- 2010 UB, 2010 TY54, 2010 TN54, 2010 RN80, 2010 RM42, 2001 SA270, 243147, 199145, 168378, 5869
J75La Sagra Obs. in Spain, 1 in MPEC 2010-U11 -- 2010 UD
213Montcabre Obs. in Spain, 1 in MPEC 2010-U11 -- 2010 UD
900Moriyama Obs. in Japan, 2 in MPECs 2010-U10 & 2010-U11 -- 2010 UD, 2010 UC
G96Mt. Lemmon Survey (MLS) in Arizona, 2 in MPECs 2010-U11 & 2010-U12 -- 2010 UE, 2010 UD
644NEAT's Mt. Palomar telescope in southern California, 1 in MPEC 2010-U09 -- 2002 PC11
608NEAT's USAF Haleakala telescope in Hawaii, 1 in MPEC 2010-U09 -- 2002 PC11
H23Pear Tree Obs. in Florida, 1 in MPEC 2010-U09 -- 153814
D29Purple Mtn. Obs. Xuyi Station in China, 1 in MPEC 2010-U09 -- 2212
H06|H. Sato in Japan via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-U11 -- 2010 UD
473Remanzacco Obs. in Italy, 1 in MPEC 2010-U09 -- 2010 TJ167
854Sabino Canyon Obs. in Arizona, 2 in MPECs 2010-U10 & 2010-U11 -- 2010 UD, 2010 UC
H36Sandlot Obs. in Kansas, 3 in MPECs 2010-U10, 2010-U11 & 2010-U12 -- 2010 UE, 2010 UD, 2010 UC
E12Siding Spring Survey (SSS) in New South Wales, 5 in MPECs 2010-U09 & 2010-U11 -- 2010 UD, 2010 TE55, 2010 RO82, 2009 UM, 2008 UF7
691Spacewatch 0.9m telescope in Arizona, 7 in MPECs 2010-U09 & 2010-U12 -- 2010 UE, 2010 TU5, 2010 TR54, 2010 TO55, 2010 TL, 2010 GJ65, 2008 TA1
H47Vicksburg Obs. in Mississippi, 2 in MPEC 2010-U09 -- 2003 UV11, 96590
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 17 October '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 UEJPL Sentry23592026-204443.3e-07-8.25-8.360JPL: "Analysis based on 18 observations spanning .09268 days (2010-Oct-17.3016 to 2010-Oct-17.39428)." Diameter approximately 0.004 km. from mean, weighted H=29.6.
2010 UBJPL Sentry15522078-2109225.7e-08-7.28-8.000JPL: "Analysis based on 8 observations spanning .63497 days (2010-Oct-16.288 to 2010-Oct-16.92297)." Diameter approximately 0.046 km. from mean, weighted H=24.3.
2010 TU149JPL Sentry15522077-209861.2e-07-4.33-4.670JPL: "Analysis based on 36 observations spanning 2.7480 days (2010-Oct-13.37823 to 2010-Oct-16.12627)." Diameter approximately 0.310 km. from mean, weighted H=20.2.
NEODyS1552207713.81e-08-4.78-4.780NEODyS: "Based on 36 optical observations (of which 0 are rejected as outliers) from 2010/10/13.379 to 2010/10/16.127."
2010 TP55NEODyS15522021-2088211.45e-07-3.69-3.790NEODyS: "Based on 18 optical observations (of which 0 are rejected as outliers) from 2010/10/11.477 to 2010/10/16.423."
2010 TN55JPL Sentry15522066-2104213.6e-06-6.19-6.720JPL: "Analysis based on 23 observations spanning 2.9506 days (2010-Oct-13.27465 to 2010-Oct-16.225249)." Diameter approximately 0.014 km. from mean, weighted H=27.0.
NEODyS15522074-209081.75e-06-6.47-6.720NEODyS: "Based on 23 optical observations (of which 0 are rejected as outliers) from 2010/10/13.275 to 2010/10/16.226."
2010 TW54JPL Sentry15522074-2107122.6e-05-6.19-6.220JPL: "Analysis based on 61 observations spanning 4.9304 days (2010-Oct-11.34885 to 2010-Oct-16.27929)." Diameter approximately 0.011 km. from mean, weighted H=27.5.
NEODyS15522087-209024.56e-08-8.86-9.020NEODyS: "Based on 61 optical observations (of which 0 are rejected as outliers) from 2010/10/11.350 to 2010/10/16.280."

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 October '10

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

2359Noted that JPL Sentry has posted 2010 UE as an impact risk - see above
2224Grabbed MPEC 2010-U12 - 2010 UE - see above
2133Grabbed MPEC 2010-U11 - 2010 UD - see above
2032Grabbed MPEC 2010-U10 - 2010 UC - see above
1552Noted that JPL Sentry has updated its 2010 TN55 risk assessment - see above
Noted that NEODyS has updated its 2010 TN55 risk assessment - see above
Noted that NEODyS has updated its 2010 TP55 risk assessment - see above
Noted that JPL Sentry has updated its 2010 TU149 risk assessment - see above
Noted that NEODyS has updated its 2010 TU149 risk assessment - see above
Noted that JPL Sentry has updated its 2010 TW54 risk assessment - see above
Noted that NEODyS has updated its 2010 TW54 risk assessment - see above
Noted that JPL Sentry has posted 2010 UB as an impact risk - see above
Grabbed MPEC 2010-U09 - Daily Orbit Update - see above
Noted that the NEOCP has become active
0404Grabbed MPEC 2010-U08 - 2010 UB - see above
Noted that the NEOCP has become empty