Contents  on 18 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 18 October '10

The MPC's NEO Confirmation Page has 6 listings: 1 new, 5 updated

When last checked at 2002 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one new and five updated listings. Of these, one was a "one nighter." So far The Tracking News has counted a total of fourteen 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 18 October '10

Minor Planet Electronic Circulars

As of last check at 2002 UTC, there have been seven MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2010-U19 - "17:49 UT" - Comet P/2010 U2 (Hill)


MPEC 2010-U18 - "17:09 UT" - Comet P/2010 U1 (Boattini)


MPEC 2010-U17 - "16:29 UT" - 2010 UK


MPEC 2010-U16 - "16:20 UT" - 2010 UJ


MPEC 2010-U15 - "16:13 UT" - 2010 UH


MPEC 2010-U14 - "16:07 UT" - 2010 UG


<< DOU on 18 Oct. '10 >>  MPEC 2010-U13 - "06:09 UT" - Daily Orbit Update

Observers  on 18 October '10

A total of 26 observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 14 in MPECs 2010-U13, 2010-U15, 2010-U17, 2010-U18 & 2010-U19 -- 2010 UK, 2010 UH, P/2010 U2, P/2010 U1, 2010 TZ54, 2010 TY54, 2010 TV54, 2010 TU149, 2010 TP55, 2010 TK167, 2010 TJ7, 2010 TJ54, 2010 TF54, 2010 RK43
300Bisei Spaceguard Center in Japan, 4 in MPECs 2010-U13, 2010-U17, 2010-U18 & 2010-U19 -- 2010 UK, 2010 UC, P/2010 U2, P/2010 U1
B20Carmelita Obs. in Spain, 1 in MPEC 2010-U19 -- P/2010 U2
703Catalina Sky Survey (CSS) in Arizona, 6 in MPECs 2010-U13 & 2010-U19 -- 2010 UB, P/2010 U2, 2010 TN54, 243147, 177255, 153591
448Desert Moon Obs. in New Mexico, 6 in MPEC 2010-U13 -- 2010 TZ54, 2010 TR55, 2010 TJ54, 2010 SD13, 2010 RC130, 250706
H26Doc Greiner Research Obs. (DGRO) in Wisconsin, 2 in MPEC 2010-U13 -- 2010 TK167, 2010 TD55
113Drebach Obs. in Germany, 1 in MPEC 2010-U19 -- P/2010 U2
J95Great Shefford Obs. in England, 3 in MPECs 2010-U13 & 2010-U17 -- 2010 UK, 2010 TV54, 2010 TK
A17Guidestar Obs. in Germany, 2 in MPECs 2010-U17 & 2010-U19 -- 2010 UK, P/2010 U2
H15ISON-NM Obs. in New Mexico, 1 in MPEC 2010-U13 -- 2010 RN80
J28Jaen Obs. in Spain, 2 in MPECs 2010-U13 & 2010-U19 -- P/2010 U2, 2010 MF1
695^Spacewatch via Kitt Peak Natl. Obs. (KPNO) in Arizona, 7 in MPEC 2010-U13 -- 2010 QD2, 2010 OC101, 2010 HR80, 2010 GO33, 2010 GH65, 2010 FL, 2001 WT1
704LINEAR in New Mexico, 12 in MPEC 2010-U13 -- 2010 UB, 2010 TY54, 2010 TV149, 2010 TU149, 2010 TR55, 2010 TC55, 2010 RN80, 2010 RM42, 2010 PM10, 2010 MF1, 219071, 177255
J75La Sagra Obs. in Spain, 2 in MPECs 2010-U18 & 2010-U19 -- P/2010 U2, P/2010 U1
H13Lenomiya Obs. in Arizona, 1 in MPEC 2010-U13 -- 2010 TD55
844Los Molinos Obs. in Uruguay, 4 in MPEC 2010-U13 -- 2010 TV149, 2010 TE55, 2003 UV11, 2000 TU28
900Moriyama Obs. in Japan, 1 in MPEC 2010-U19 -- P/2010 U2
G96Mt. Lemmon Survey (MLS) in Arizona, 9 in MPECs 2010-U13, 2010-U14, 2010-U15, 2010-U16, 2010-U17, 2010-U18 & 2010-U19 -- 2010 UK, 2010 UJ, 2010 UH, 2010 UG, P/2010 U2, P/2010 U1, 2010 TY54, 2010 RB130, 154269
H06%Ernesto Guido in Italy via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-U19 -- P/2010 U2
H06*Rolando Ligustri in Italy via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-U19 -- P/2010 U2
H06|H. Sato in Japan via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-U19 -- P/2010 U2
854Sabino Canyon Obs. in Arizona, 1 in MPEC 2010-U18 -- P/2010 U1
H36Sandlot Obs. in Kansas, 2 in MPECs 2010-U17 & 2010-U18 -- 2010 UK, P/2010 U1
E12Siding Spring Survey (SSS) in New South Wales, 5 in MPEC 2010-U13 -- 2010 TE55, 2010 RN82, 2010 RG137, 2007 TC66, 2005 WK4
691Spacewatch 0.9m telescope in Arizona, 3 in MPECs 2010-U13 & 2010-U18 -- P/2010 U1, 2010 TZ53, 2010 RA147
A98Taurus-1 Obs. in Belarus, 1 in MPEC 2010-U13 -- 2007 RU17
H10Tzec Maun Obs. Mayhill in New Mexico, 2 in MPECs 2010-U17 & 2010-U19 -- 2010 UK, P/2010 U2
H47Vicksburg Obs. in Mississippi, 2 in MPEC 2010-U13 -- 2003 UV11, 248083
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 18 October '10

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2002 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 UKJPL Sentry20022068-2108421.4e-03-3.93-3.940JPL: "Analysis based on 53 observations spanning .83909 days (2010-Oct-17.49652 to 2010-Oct-18.33561)." Diameter approximately 0.015 km. from mean, weighted H=26.8.
2010 UJJPL Sentry20022019-21101362.6e-05-5.09-6.250JPL: "Analysis based on 12 observations spanning 1.0144 days (2010-Oct-17.45081 to 2010-Oct-18.46516)." Diameter approximately 0.020 km. from mean, weighted H=26.1.
2010 UHJPL Sentry20022029-21102461.0e-04-5.25-5.650JPL: "Analysis based on 15 observations spanning 1.0663 days (2010-Oct-17.41946 to 2010-Oct-18.48571)." Diameter approximately 0.013 km. from mean, weighted H=27.1.
2010 UENEODyS13502032-204423.71e-07-8.19-8.290NEODyS: "Based on 18 optical observations (of which 0 are rejected as outliers) from 2010/10/17.302 to 2010/10/17.395."
2010 UBJPL Sentry1350R E M O V E DJPL: Risk listing removed at 0952 UTC.
2010 TK167JPL Sentry13502057-209627.5e-08-6.25-6.250JPL: "Analysis based on 32 observations spanning 2.9814 days (2010-Oct-14.25476 to 2010-Oct-17.236138)." Diameter approximately 0.088 km. from mean, weighted H=22.9.
2010 TU149JPL Sentry13502077-209839.7e-08-4.50-4.790JPL: "Analysis based on 43 observations spanning 4.0495 days (2010-Oct-13.37823 to 2010-Oct-17.4277)." Diameter approximately 0.300 km. from mean, weighted H=20.2.
NEODyS1350R E M O V E D-
2010 TP55JPL Sentry19022021-203637.8e-08-3.94-3.950JPL: "Analysis based on 21 observations spanning 5.9596 days (2010-Oct-11.47643 to 2010-Oct-17.436036)." Diameter approximately 0.321 km. from mean, weighted H=20.1.
NEODyS1350202114.24e-08-4.18-4.180NEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2010/10/11.477 to 2010/10/17.437."
2007 UO6JPL Sentry04002011-2104141.7e-05-5.64-6.130JPL: "Analysis based on 9 observations spanning 1.9989 days (2007-Oct-21.36454 to 2007-Oct-23.36341)." Diameter approximately 0.012 km. from mean, weighted H=27.3.

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 18 October '10

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

2002Noted that JPL Sentry has posted 2010 UH as an impact risk - see above
Noted that JPL Sentry has posted 2010 UJ as an impact risk - see above
Noted that JPL Sentry has posted 2010 UK as an impact risk - see above
1902Noted that JPL Sentry has posted 2010 TP55 as an impact risk - see above
1754Grabbed MPEC 2010-U18 - Comet P/2010 U1 (Boattini) - see above
Grabbed MPEC 2010-U19 - Comet P/2010 U2 (Hill) - see above
1639Grabbed MPEC 2010-U14 - 2010 UG - see above
Grabbed MPEC 2010-U15 - 2010 UH - see above
Grabbed MPEC 2010-U16 - 2010 UJ - see above
Grabbed MPEC 2010-U17 - 2010 UK - see above
1350Noted that JPL Sentry has posted 2010 TK167 as an impact risk - 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 removed 2010 TU149 as an impact risk - see above
Noted that JPL Sentry has removed 2010 UB as an impact risk - see above
Noted that NEODyS has posted 2010 UE as an impact risk - see above
Grabbed MPEC 2010-U13 - Daily Orbit Update - see above
0400Noted that JPL Sentry has updated its 2007 UO6 risk assessment - see above