Contents  on 31 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 31 October '10

The MPC's NEO Confirmation Page has 19 listings: 2 new, 17 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two new and seventeen updated listings. Of these, six were "one nighters." So far The Tracking News has counted a total of 29 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 31 October '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-U71 - "18:49 UT" - 2010 UT7


MPEC 2010-U70 - "18:45 UT" - 2010 US7


MPEC 2010-U69 - "18:23 UT" - 2010 UR7


MPEC 2010-U68 - "10:48 UT" - 2010 UQ7


<< DOU on 31 Oct. '10 >>  MPEC 2010-U67 - "06:09 UT" - Daily Orbit Update


MPEC 2010-U66 - "04:35 UT" - 2010 UP7


MPEC 2010-U65 - "04:16 UT" - 2010 UO7


MPEC 2010-U64 - "00:59 UT" - 2001 UX4

Observers  on 31 October '10

A total of 34 observing facilities appear in today's MPECs.

CodeObserver / observatory
B03Alter Satzberg Obs. in Austria, 2 in MPECs 2010-U64 & 2010-U68 -- 2010 UQ7, 2001 UX4
E23Arcadia Obs. in New South Wales, 1 in MPEC 2010-U64 -- 2001 UX4
H21Astronomical Research Obs. Westfield in Illinois, 6 in MPECs 2010-U64, 2010-U65, 2010-U66, 2010-U68, 2010-U69 & 2010-U70 -- 2010 US7, 2010 UR7, 2010 UQ7, 2010 UP7, 2010 UO7, 2001 UX4
B07Camorino Obs. in Switzerland, 1 in MPEC 2010-U67 -- 2003 UV11
B66Casasco Obs. in Italy, 1 in MPEC 2010-U67 -- 2003 UV11
160Castelmartini Obs. in Italy, 7 in MPEC 2010-U67 -- 2004 FU4, 2002 VE68, 96590, 250706, 4954, 4197, 3200
703Catalina Sky Survey (CSS) in Arizona, 9 in MPECs 2010-U64, 2010-U65, 2010-U67 & 2010-U68 -- 2010 UX6, 2010 UQ7, 2010 UO7, 2010 TN54, 2007 TD71, 2001 UX4, 154300, 12923, 2212
J18Churchstoke Obs. in Wales, 1 in MPEC 2010-U67 -- 2010 UC7
J01Cielo Profundo Obs. in Spain, 1 in MPEC 2010-U64 -- 2001 UX4
106Crni Vrh Obs. in Slovenia, 3 in MPECs 2010-U67 & 2010-U68 -- 2010 UQ7, 137032, 12538
448Desert Moon Obs. in New Mexico, 7 in MPECs 2010-U64 & 2010-U67 -- 2010 UX6, 2010 UB7, 2010 TJ54, 2010 TH19, 2010 RS180, 2010 QE2, 2001 UX4
H26Doc Greiner Research Obs. (DGRO) in Wisconsin, 4 in MPECs 2010-U67 & 2010-U68 -- 2010 UQ7, 2010 TC55, 2010 RN80, 2007 RU17
J04ESA Optical Ground Station (ESA OGS) in the Canary Islands, 2 in MPECs 2010-U65 & 2010-U68 -- 2010 UQ7, 2010 UO7
595Farra d'Isonzo Obs. in Italy, 2 in MPECs 2010-U64 & 2010-U65 -- 2010 UO7, 2001 UX4
F657Paul Roche in Wales via Faulkes Telescope North in Hawaii, 1 in MPEC 2010-U65 -- 2010 UO7
157Frasso Sabino Obs. in Italy, 6 in MPEC 2010-U67 -- 2010 UX6, 2010 TH19, 2010 TC55, 2005 TB15, 2003 UV11, 1999 TK12
B21Gaisberg Obs. in Austria, 1 in MPEC 2010-U66 -- 2010 UP7
H15ISON-NM Obs. in New Mexico, 1 in MPEC 2010-U70 -- 2010 US7
704LINEAR in New Mexico, 1 in MPEC 2010-U70 -- 2010 US7
H01Magdalena Ridge Obs. (MRO) in New Mexico, 9 in MPECs 2010-U64, 2010-U65, 2010-U66, 2010-U67, 2010-U68, 2010-U69, 2010-U70 & 2010-U71 -- 2010 UY6, 2010 UT7, 2010 US7, 2010 UR7, 2010 UQ7, 2010 UP7, 2010 UO7, 2010 TK54, 2001 UX4
B82Maidbronn Obs. in Germany, 1 in MPEC 2010-U67 -- 2003 UV11
118Modra Obs. in Slovakia, 1 in MPEC 2010-U68 -- 2010 UQ7
213Montcabre Obs. in Spain, 1 in MPEC 2010-U67 -- 2003 UV11
G96Mt. Lemmon Survey (MLS) in Arizona, 10 in MPECs 2010-U66, 2010-U67, 2010-U69, 2010-U70 & 2010-U71 -- 2010 UT7, 2010 US7, 2010 UR7, 2010 UP7, 2010 TZ54, 2010 TM3, 2010 QE2, 2003 UV11, 10165, 4954
H23Pear Tree Obs. in Florida, 3 in MPEC 2010-U67 -- 2010 TX168, 2010 TJ7, 65679
D29Purple Mtn. Obs. Xuyi Station in China, 2 in MPEC 2010-U67 -- 2010 PM10, 168378
H06%Ernesto Guido in Italy via RAS Obs. Mayhill in New Mexico, 2 in MPECs 2010-U64 & 2010-U68 -- 2010 UQ7, 2001 UX4
H06*Rolando Ligustri in Italy via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-U68 -- 2010 UQ7
H06|H. Sato in Japan via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-U67 -- 2010 QE2
473Remanzacco Obs. in Italy, 2 in MPECs 2010-U64 & 2010-U65 -- 2010 UO7, 2001 UX4
854Sabino Canyon Obs. in Arizona, 3 in MPECs 2010-U64, 2010-U65 & 2010-U68 -- 2010 UQ7, 2010 UO7, 2001 UX4
H36Sandlot Obs. in Kansas, 3 in MPECs 2010-U68, 2010-U69 & 2010-U70 -- 2010 US7, 2010 UR7, 2010 UQ7
E12Siding Spring Survey in New South Wales, 1 in MPEC 2010-U64 -- 2001 UX4
510Siegen Obs. in Germany, 1 in MPEC 2010-U67 -- 2003 UV11
691Spacewatch 0.9m telescope in Arizona, 3 in MPEC 2010-U67 -- 2010 UY6, 2010 TL55, 2006 UP
291Spacewatch 1.8m telescope in Arizona, 16 in MPECs 2010-U66, 2010-U67 & 2010-U71 -- 2010 UX6, 2010 UT7, 2010 UP7, 2010 UO7, 2010 UA7, 2010 TX54, 2010 TS55, 2010 SY3, 2010 RT80, 2010 RQ80, 2010 RJ64, 2010 MF1, 2010 KZ117, 2010 JE, 2004 LJ, 2001 QL142
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 31 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 UT7JPL Sentry22002023-21101234.6e-07-3.19-4.300JPL: "Analysis based on 21 observations spanning 2.0518 days (2010-Oct-29.47815 to 2010-Oct-31.52991)." Diameter approximately 0.440 km. from mean, weighted H=19.4.
2010 UR7JPL Sentry20012079-208631.7e-06-7.01-7.320JPL: "Analysis based on 30 observations spanning 1.2167 days (2010-Oct-30.16358 to 2010-Oct-31.38024)." Diameter approximately 0.012 km. from mean, weighted H=27.3.
2010 UJ7NEODyS18032015-2078124.69e-04-2.67-2.670NEODyS: "Based on 16 optical observations (of which 0 are rejected as outliers) from 2010/10/29.339 to 2010/10/30.453."
2010 UC7JPL Sentry1803210423.5e-08-7.58-7.720JPL: "Analysis based on 33 observations spanning 1.4104 days (2010-Oct-28.43616 to 2010-Oct-29.84652)." Diameter approximately 0.038 km. from mean, weighted H=24.8.
2010 UX6JPL Sentry1803207914.4e-07-5.61-5.610JPL: "Analysis based on 77 observations spanning 3.4433 days (2010-Oct-27.77604 to 2010-Oct-31.21935)." Diameter approximately 0.084 km. from mean, weighted H=23.0.
NEODyS1803207914.58e-07-5.60-5.600NEODyS: "Based on 77 optical observations (of which 0 are rejected as outliers) from 2010/10/27.777 to 2010/10/31.220."
2010 TK54NEODyS1803R E M O V E D-

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 31 October '10

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

2200Noted that JPL Sentry has posted 2010 UT7 as an impact risk - see above
2001Noted that JPL Sentry has posted 2010 UR7 as an impact risk - see above
1900Grabbed MPEC 2010-U68 - 2010 UQ7 - see above
Grabbed MPEC 2010-U69 - 2010 UR7 - see above
Grabbed MPEC 2010-U70 - 2010 US7 - see above
Grabbed MPEC 2010-U71 - 2010 UT7 - see above
1803Noted that NEODyS has removed 2010 TK54 as an impact risk - see above
Noted that JPL Sentry has updated its 2010 UC7 risk assessment - see above
Noted that NEODyS has posted 2010 UJ7 as an impact risk - see above
Noted that JPL Sentry has updated its 2010 UX6 risk assessment - see above
Noted that NEODyS has updated its 2010 UX6 risk assessment - see above
0815Grabbed MPEC 2010-U67 - Daily Orbit Update - see above
0650Grabbed MPEC 2010-U65 - 2010 UO7 - see above
Grabbed MPEC 2010-U66 - 2010 UP7 - see above
0204Grabbed MPEC 2010-U64 - 2001 UX4 - see above