Contents  on 29 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 29 October '10

The MPC's NEO Confirmation Page has 9 listings: 2 new, 7 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two new and seven updated listings. Of these, one was a "one nighter." So far The Tracking News has counted a total of eighteen 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 29 October '10

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been nine MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2010-U57 - "20:54 UT" - 2010 UH7


MPEC 2010-U56 - "20:07 UT" - 2010 UG7


MPEC 2010-U55 - "17:21 UT" - Comet C/2010 S1 (LINEAR)


MPEC 2010-U54 - "16:46 UT" - Comet P/2010 R2 (La Sagra)


MPEC 2010-U53 - "15:36 UT" - Comet C/2010 R1 (LINEAR)


MPEC 2010-U52 - "14:04 UT" - 2010 UF7


MPEC 2010-U51 - "13:50 UT" - 2010 UE7


<< DOU on 29 Oct. '10 >>  MPEC 2010-U50 - "06:10 UT" - Daily Orbit Update


MPEC 2010-U49 - "02:10 UT" - Comet P/2010 U2 (Hill)

Observers  on 29 October '10

A total of 38 observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 17 in MPECs 2010-U50, 2010-U51, 2010-U52, 2010-U56 & 2010-U57 -- 2010 UO, 2010 UM, 2010 UH7, 2010 UG7, 2010 UF7, 2010 UE7, 2010 UD, 2010 TZ54, 2010 TY54, 2010 TV149, 2010 TN54, 2010 TF54, 2010 TC55, 2010 SL13, 2010 SK15, 2010 SD13, 2010 PM10
J51Atlante Obs. in the Canary Islands, 3 in MPEC 2010-U50 -- 2010 TJ7, 2007 RU17, 143381
B75Betelgeuse Station in Italy, 1 in MPEC 2010-U50 -- 2003 UV11
235CAST Obs. in Italy, 3 in MPECs 2010-U49, 2010-U54 & 2010-U55 -- P/2010 U2, C/2010 S1, P/2010 R2
160Castelmartini Obs. in Italy, 10 in MPECs 2010-U50, 2010-U53 & 2010-U54 -- 2010 TX168, P/2010 R2, C/2010 R1, 2010 PM10, 2010 LY63, 2007 VG189, 2003 UV11, 153814, 143381, 137032
703Catalina Sky Survey (CSS) in Arizona, 19 in MPECs 2010-U50 & 2010-U57 -- 2010 UH7, 2010 TX168, 2010 TC55, 2010 TC47, 2010 RA147, 2004 VT60, 2004 FU4, 2003 UV11, 2003 TX7, 2003 HQ32, 2001 WT1, 65679, 249595, 216115, 199145, 168378, 137062, 4688, 1864
J01Cielo Profundo Obs. in Spain, 1 in MPEC 2010-U49 -- P/2010 U2
448Desert Moon Obs. in New Mexico, 2 in MPEC 2010-U50 -- 2010 TC47, 4401
J04ESA Optical Ground Station in the Canary Islands, 1 in MPEC 2010-U50 -- 2010 TW54
F65Faulkes Telescope North in Hawaii, 1 in MPEC 2010-U49 -- P/2010 U2
B21Gaisberg Obs. in Austria, 2 in MPECs 2010-U56 & 2010-U57 -- 2010 UH7, 2010 UG7
H15ISON-NM Obs. in New Mexico, 1 in MPEC 2010-U55 -- C/2010 S1
C32Ka-Dar Obs. TAU Station in Russia, 1 in MPEC 2010-U49 -- P/2010 U2
585Kiev Comet Station in the Ukraine, 3 in MPECs 2010-U53, 2010-U54 & 2010-U55 -- C/2010 S1, P/2010 R2, C/2010 R1
704LINEAR in New Mexico, 9 in MPEC 2010-U50 -- 2010 UX6, 2010 UP, 2010 TV149, 25916, 169352, 12923, 11405, 7336, 5011
J75La Sagra Obs. in Spain, 3 in MPEC 2010-U50 -- 2010 RA147, 2010 PM10, 168378
844Los Molinos Obs. in Uruguay, 1 in MPEC 2010-U51 -- 2010 UE7
C34MPC code C34, 1 in MPEC 2010-U50 -- 2010 TC55
560Madonna di Dossobuono Obs. in Italy, 1 in MPEC 2010-U50 -- 2010 UD
J40Malaga Obs. in Spain, 1 in MPEC 2010-U55 -- C/2010 S1
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-U50 -- 2010 SZ16
213Montcabre Obs. in Spain, 2 in MPECs 2010-U49 & 2010-U54 -- P/2010 U2, P/2010 R2
G96Mt. Lemmon Survey (MLS) in Arizona, 5 in MPECs 2010-U50, 2010-U52, 2010-U56 & 2010-U57 -- 2010 UH7, 2010 UG7, 2010 UF7, 17182, 154007
J47Nazaret Obs. in Spain, 1 in MPEC 2010-U54 -- P/2010 R2
J69North Obs. in England, 1 in MPEC 2010-U50 -- 2003 UV11
A53Peschiera del Garda Obs. in Italy, 4 in MPEC 2010-U50 -- 2010 TX168, 2010 TJ7, 2010 TG19, 2007 RU17
D29Purple Mtn. Obs. Xuyi Station in China, 1 in MPEC 2010-U49 -- P/2010 U2
H06%Ernesto Guido in Italy via RAS Obs. Mayhill in New Mexico, 2 in MPECs 2010-U50 & 2010-U51 -- 2010 UE7, 2003 UV11
473Remanzacco Obs. in Italy, 2 in MPECs 2010-U52 & 2010-U55 -- 2010 UF7, C/2010 S1
461SZTE Asteroid Program in Hungary, 1 in MPEC 2010-U50 -- 168378
854Sabino Canyon Obs. in Arizona, 3 in MPECs 2010-U51, 2010-U56 & 2010-U57 -- 2010 UH7, 2010 UG7, 2010 UE7
H36Sandlot Obs. in Kansas, 4 in MPECs 2010-U51, 2010-U52, 2010-U56 & 2010-U57 -- 2010 UH7, 2010 UG7, 2010 UF7, 2010 UE7
B70Sant Celoni Obs. in Spain, 1 in MPEC 2010-U49 -- P/2010 U2
204Schiaparelli Obs. in Italy, 7 in MPECs 2010-U50, 2010-U51, 2010-U52, 2010-U56 & 2010-U57 -- 2010 UH7, 2010 UG7, 2010 UF7, 2010 UE7, 2010 UB7, 2010 TU149, 5869
E12Siding Spring Survey (SSS) in New South Wales, 2 in MPECs 2010-U50 & 2010-U51 -- 2010 UE7, 16657
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2010-U50 -- 2002 GM9
291Spacewatch 1.8m telescope in Arizona, 8 in MPECs 2010-U50 & 2010-U57 -- 2010 UH7, 2010 TR54, 2010 TJ167, 2010 RS3, 2010 MF1, 2010 JG88, 2010 HQ80, 2010 FO92
A48Verona Obs. in Italy, 2 in MPEC 2010-U50 -- 2010 UD, 2010 TF54
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 29 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 UC7JPL Sentry01222092-2109331.9e-05-4.78-5.160JPL: "Analysis based on 27 observations spanning .45990 days (2010-Oct-28.43616 to 2010-Oct-28.89606)." Diameter approximately 0.040 km. from mean, weighted H=24.7.
2010 UA7NEODyS17102052-208624.27e-10-8.77-9.020NEODyS: "Based on 11 optical observations (of which 0 are rejected as outliers) from 2010/10/28.266 to 2010/10/28.904."
JPL Sentry01222086-210334.4e-09-7.69-7.800JPL: "Analysis based on 11 observations spanning .63829 days (2010-Oct-28.26478 to 2010-Oct-28.90307)." Diameter approximately 0.081 km. from mean, weighted H=23.1.
2010 UZ6NEODyS1710206118.01e-09-8.90-8.900NEODyS: "Based on 16 optical observations (of which 0 are rejected as outliers) from 2010/10/28.217 to 2010/10/28.858."
JPL Sentry0122206113.5e-08-8.22-8.220JPL: "Analysis based on 16 observations spanning .64092 days (2010-Oct-28.21653 to 2010-Oct-28.85745)." Diameter approximately 0.018 km. from mean, weighted H=26.4.
2010 UY6JPL Sentry0122210811.0e-10-7.83-7.830JPL: "Analysis based on 30 observations spanning 5.0626 days (2010-Oct-22.96674 to 2010-Oct-28.02934)." Diameter approximately 0.330 km. from mean, weighted H=20.1.
2010 UX6JPL Sentry1710207928.1e-07-5.33-5.340JPL: "Analysis based on 50 observations spanning 1.0800 days (2010-Oct-27.77604 to 2010-Oct-28.85604)." Diameter approximately 0.085 km. from mean, weighted H=23.0.
NEODyS1710207918.21e-07-5.33-5.330NEODyS: "Based on 50 optical observations (of which 0 are rejected as outliers) from 2010/10/27.777 to 2010/10/28.857."
2010 TU149NEODyS1710R E M O V E D-
2010 TW54JPL Sentry17102074-2107143.0e-05-6.14-6.170JPL: "Analysis based on 70 observations spanning 4.9304 days (2010-Oct-11.34885 to 2010-Oct-16.27929)." Diameter approximately 0.010 km. from mean, weighted H=27.5.
NEODyS17102081-208841.68e-06-7.31-7.330NEODyS: "Based on 70 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 29 October '10

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

2124Grabbed MPEC 2010-U56 - 2010 UG7 - see above
Grabbed MPEC 2010-U57 - 2010 UH7 - see above
1825Grabbed MPEC 2010-U55 - Comet C/2010 S1 (LINEAR) - see above
1710Noted that NEODyS has removed 2010 TU149 as an impact risk - 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 NEODyS has posted 2010 UA7 as an impact risk - see above
Noted that JPL Sentry has updated its 2010 UX6 risk assessment - see above
Noted that NEODyS has posted 2010 UX6 as an impact risk - see above
Noted that NEODyS has posted 2010 UZ6 as an impact risk - see above
Grabbed MPEC 2010-U50 - Daily Orbit Update - see above
Grabbed MPEC 2010-U51 - 2010 UE7 - see above
Grabbed MPEC 2010-U52 - 2010 UF7 - see above
Grabbed MPEC 2010-U53 - Comet C/2010 R1 (LINEAR) - see above
Grabbed MPEC 2010-U54 - Comet P/2010 R2 (La Sagra) - see above
0223Grabbed MPEC 2010-U49 - Comet P/2010 U2 (Hill) - see above
0122Noted that JPL Sentry has posted 2010 UA7 as an impact risk - see above
Noted that JPL Sentry has posted 2010 UC7 as an impact risk - see above
Noted that JPL Sentry has posted 2010 UY6 as an impact risk - see above
Noted that JPL Sentry has posted 2010 UZ6 as an impact risk - see above