Contents  on 28 November '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 28 November '10

The MPC's NEO Confirmation Page has 10 listings: 5 new, 5 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had five new and five updated listings. Of these, six 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 28 November '10

Minor Planet Electronic Circulars

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


MPEC 2010-W50 - "11:55 UT" - 2010 WH3


MPEC 2010-W49 - "11:27 UT" - 2010 WG3


MPEC 2010-W48 - "11:20 UT" - 2010 WF3


MPEC 2010-W47 - "10:54 UT" - 2010 WE3


MPEC 2010-W46 - "10:47 UT" - 2010 WD3


<< DOU on 28 Nov. '10 >>  MPEC 2010-W45 - "07:13 UT" - Daily Orbit Update


MPEC 2010-W44 - "05:37 UT" - 2010 WC3


MPEC 2010-W43 - "05:31 UT" - 2010 WB3

Observers  on 28 November '10

Fourteen observers appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 8 in MPECs 2010-W43, 2010-W44 & 2010-W45 -- 2010 WC3, 2010 WB3, 2010 VR, 2010 VP21, 2010 UQ7, 2010 UK8, 2010 TP54, 2010 TF54
300Bisei Spaceguard Center in Japan, 1 in MPEC 2010-W43 -- 2010 WB3
703Catalina Sky Survey (CSS) in Arizona, 11 in MPECs 2010-W45 & 2010-W49 -- 2010 WG3, 2010 VY190, 2010 SC41, 2010 NW117, 2005 WE, 2001 VB2, 246138, 241370, 22753, 138852, 4688
448Desert Moon Obs. in New Mexico, 8 in MPEC 2010-W45 -- 2010 WH, 2010 WB, 2010 VE139, 2010 RF181, 2008 YU32, 2003 SV222, 2000 AC6, 88959
203GiaGa Obs. in Italy, 1 in MPEC 2010-W45 -- 2010 VY190
379Hamamatsu-Yuto Obs. in Japan, 1 in MPEC 2010-W45 -- 2010 VY190
G96Mt. Lemmon Survey (MLS) in Arizona, 19 in MPECs 2010-W43, 2010-W44, 2010-W45, 2010-W46, 2010-W47, 2010-W48, 2010-W49 & 2010-W50 -- 2010 WH3, 2010 WH1, 2010 WG3, 2010 WF3, 2010 WE3, 2010 WD3, 2010 WC3, 2010 WB3, 2010 VZ71, 2010 VY71, 2010 VC40, 2010 UM, 2010 TP55, 2010 JK33, 1998 HK49, 85867, 68372, 4660, 4450
J93Mt. Tuffley Obs. in England, 5 in MPEC 2010-W45 -- 2010 SC41, 96590, 5869, 3838, 3122
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 5 in MPEC 2010-W45 -- 2010 WL, 2010 VY190, 2010 SC41, 2010 LR68, 2008 YU32
854Sabino Canyon Obs. in Arizona, 4 in MPECs 2010-W45, 2010-W47, 2010-W48 & 2010-W49 -- 2010 WG3, 2010 WF3, 2010 WE3, 2010 WC3
H36Sandlot Obs. in Kansas, 4 in MPECs 2010-W43, 2010-W44, 2010-W48 & 2010-W50 -- 2010 WH3, 2010 WF3, 2010 WC3, 2010 WB3
204Schiaparelli Obs. in Italy, 7 in MPEC 2010-W45 -- 2010 WB, 2010 VZ139, 2010 VY190, 2010 SC41, 2010 RF181, 2007 VC138, 1999 XR35
291Spacewatch 1.8m telescope in Arizona, 4 in MPECs 2010-W43 & 2010-W45 -- 2010 WB3, 2010 VT11, 2010 TS149, 2010 TP54
I15Wishing Star Obs. in Rhode Island, 6 in MPEC 2010-W45 -- 2010 WL, 2010 UX7, 2010 SD13, 2010 SC41, 2010 LO97, 3838
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 28 November '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 WH3JPL Sentry16572043-210181.8e-09-6.47-6.940JPL: "Analysis based on 11 observations spanning .93274 days (2010-Nov-27.2164 to 2010-Nov-28.14914)." Diameter approximately 0.273 km. from mean, weighted H=20.5.
2010 WE3JPL Sentry16572011-21095342.6e-06-5.70-6.130JPL: "Analysis based on 9 observations spanning .06216 days (2010-Nov-28.24382 to 2010-Nov-28.30598)." Diameter approximately 0.018 km. from mean, weighted H=26.4.
2010 WK1NEODyS16572035-208372.94e-06-6.95-7.060NEODyS: "Based on 14 optical observations (of which 3 are rejected as outliers) from 2010-11-27.456 to 2010-11-27.529."
2010 WE1NEODyS16572022-206352.49e-10-9.23-9.40NEODyS: "Based on 7 optical observations (of which 0 are rejected as outliers) from 2010-11-27.148 to 2010-11-27.233."

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 28 November '10

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

1657Noted that NEODyS has posted 2010 WE1 as an impact risk - see above
Noted that JPL Sentry has posted 2010 WE3 as an impact risk - see above
Noted that JPL Sentry has posted 2010 WH3 as an impact risk - see above
Noted that NEODyS has posted 2010 WK1 as an impact risk - see above
Grabbed MPEC 2010-W45 - Daily Orbit Update - see above
Grabbed MPEC 2010-W46 - 2010 WD3 - see above
Grabbed MPEC 2010-W47 - 2010 WE3 - see above
Grabbed MPEC 2010-W48 - 2010 WF3 - see above
Grabbed MPEC 2010-W49 - 2010 WG3 - see above
Grabbed MPEC 2010-W50 - 2010 WH3 - see above
0551Grabbed MPEC 2010-W43 - 2010 WB3 - see above
Grabbed MPEC 2010-W44 - 2010 WC3 - see above