Contents  on 24 October '09

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 24 October '09

The MPC's NEO Confirmation Page has 14 listings: 4 new, 10 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had four new and ten updated listings. Of these, ten were "one nighters." So far The Tracking News has counted a total of 21 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 24 October '09

Minor Planet Electronic Circulars

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


MPEC 2009-U88 - "23:34 UT" - 2009 UC19


MPEC 2009-U87 - "23:28 UT" - 2009 UB19


MPEC 2009-U86 - "23:24 UT" - 2009 UA19


MPEC 2009-U85 - "18:35 UT" - Observations of Comets


MPEC 2009-U84 - "18:14 UT" - Comet C/2009 U3 (Hill)


MPEC 2009-U83 - "18:07 UT" - Comet C/2009 T3 (LINEAR)


MPEC 2009-U82 - "17:57 UT" - Comet P/2009 T2 (La Sagra)


MPEC 2009-U81 - "17:45 UT" - Comet P/2009 SK280 (Spacewatch-Hill)


MPEC 2009-U80 - "17:38 UT" - Comet P/2009 S1 (Gibbs)


MPEC 2009-U79 - "17:32 UT" - Comet P/2009 QG31 (La Sagra)


MPEC 2009-U78 - "17:25 UT" - Comet P/2009 Q5 (McNaught)


MPEC 2009-U77 - "17:18 UT" - Comet P/2009 Q4 (Boattini)


MPEC 2009-U76 - "14:03 UT" - Comet P/2009 U4 (McNaught)


MPEC 2009-U75 - "11:53 UT" - 2009 UW18


MPEC 2009-U74 - "11:49 UT" - 2009 UV18


<< DOU on 24 Oct. '09 >>  MPEC 2009-U73 - "06:11 UT" - Daily Orbit Update

Observers  on 24 October '09

A total of 56 observing facilities appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 5 in MPECs 2009-U77, 2009-U78 & 2009-U85 -- P/2009 Q5, P/2009 Q4, 226P, 127P, 64P
J51Atlante Obs. in the Canary Islands, 5 in MPECs 2009-U73, 2009-U82 & 2009-U85 -- P/2009 T2, C/2008 P1, 2005 RQ6, 127P, 22P
I32Beta Orionis Obs. in Argentina, 1 in MPEC 2009-U85 -- 199P
B75Betelgeuse Station in Italy, 5 in MPECs 2009-U82 & 2009-U85 -- P/2009 T2, C/2008 P1, C/2006 S3, 157P, 127P
215Buchloe Obs. in Germany, 15 in MPECs 2009-U79, 2009-U80, 2009-U81, 2009-U82, 2009-U83 & 2009-U85 -- C/2009 T3, P/2009 T2, P/2009 SK280, P/2009 S1, P/2009 QG31, C/2006 W3, 226P, 225P, 224P, 219P, 217P, 127P, 81P, 64P, 29P
I77CEAMIG-REA in Brazil, 1 in MPEC 2009-U76 -- P/2009 U4
I10Campo Catino Austral Obs. (CAO) in Chile, 3 in MPEC 2009-U85 -- 217P, 199P, 126P
703Catalina Sky Survey (CSS) in Arizona, 21 in MPECs 2009-U73, 2009-U82, 2009-U85 & 2009-U88 -- 2009 UC19, P/2009 T2, 2009 SW, C/2009 P2, 2009 NH, 2009 HV44, P/2008 O2, 2007 DA41, C/2006 S3, 1999 HY1, 85628, 33342, 30825, 21088, 17511, 162998, 16064, 154244, 143678, 1627, 64P
A77Chante-Perdrix Obs. in France, 4 in MPECs 2009-U82, 2009-U84 & 2009-U85 -- C/2009 U3, P/2009 T2, C/2007 Q3, 29P
480Cockfield Obs. in England, 1 in MPEC 2009-U82 -- P/2009 T2
B84Cyclops Obs. in The Netherlands, 1 in MPEC 2009-U85 -- C/2008 P1
E85Farm Cove Obs. in New Zealand, 2 in MPECs 2009-U79 & 2009-U82 -- P/2009 T2, P/2009 QG31
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2009-U88 -- 2009 UC19
372Geisei Obs. in Japan, 1 in MPEC 2009-U85 -- 64P
J95Great Shefford Obs. in England, 4 in MPECs 2009-U74, 2009-U86, 2009-U87 & 2009-U88 -- 2009 UV18, 2009 UC19, 2009 UB19, 2009 UA19
E16Grove Creek Obs. in New South Wales, 1 in MPEC 2009-U85 -- 217P
442Gualba Obs. in Spain, 1 in MPEC 2009-U85 -- 29P
379Hamamatsu-Yuto Obs. in Japan, 3 in MPEC 2009-U85 -- C/2008 P1, C/2006 W3, 22P
196Homburg-Erbach Obs. in Germany, 5 in MPEC 2009-U73 -- 2009 SM103, 2009 ML1, 16834, 136617, 1865
J28Jaen Obs. in Spain, 1 in MPEC 2009-U88 -- 2009 UC19
585Kiev Comet Station in the Ukraine, 9 in MPECs 2009-U78, 2009-U79, 2009-U80, 2009-U82, 2009-U83, 2009-U84 & 2009-U85 -- C/2009 U3, C/2009 T3, P/2009 T2, P/2009 S1, P/2009 QG31, P/2009 Q5, 157P, 127P, 47P
D95Kurihara Obs., 2 in MPEC 2009-U85 -- C/2006 W3, 22P
704LINEAR in New Mexico, 19 in MPECs 2009-U73, 2009-U74, 2009-U75, 2009-U83 & 2009-U85 -- 2009 UX17, 2009 UW18, 2009 UV18, C/2009 T3, P/2009 O3, C/2008 S3, C/2007 N3, 2004 XJ3, 2002 LV, 1999 HY1, 1985 WA, 89355, 85628, 66272, 30825, 162998, 217P, 127P, 30P
J38La Vara Obs. in Spain, 5 in MPECs 2009-U82 & 2009-U85 -- P/2009 T2, C/2008 P1, C/2006 W3, 217P, 127P
B33Libbiano Obs. in Italy, 1 in MPEC 2009-U88 -- 2009 UC19
I36Los Campitos Obs. in Argentina, 1 in MPEC 2009-U85 -- 126P
H01Magdalena Ridge Obs. (MRO) in New Mexico, 6 in MPECs 2009-U74, 2009-U75, 2009-U76, 2009-U86, 2009-U87 & 2009-U88 -- 2009 UW18, 2009 UV18, 2009 UC19, 2009 UB19, 2009 UA19, P/2009 U4
J40Malaga Obs. in Spain, 2 in MPECs 2009-U83 & 2009-U85 -- C/2009 T3, 30P
A01Masia Cal Maciarol Modul 1 (MCM1) in Spain, 5 in MPEC 2009-U85 -- C/2008 P1, C/2007 N3, 217P, 118P, 22P
J45Montana Cabreja Obs. in the Canary Islands, 3 in MPEC 2009-U85 -- C/2006 W3, 217P, 22P
213Montcabre Obs. in Spain, 3 in MPECs 2009-U73 & 2009-U85 -- 2009 KC3, C/2008 P1, C/2006 W3
G96Mt. Lemmon Survey (MLS) in Arizona, 12 in MPECs 2009-U73, 2009-U76, 2009-U77, 2009-U79, 2009-U85, 2009-U86, 2009-U87 & 2009-U88 -- 2009 UC19, 2009 UB19, 2009 UA19, P/2009 U4, 2009 TL4, P/2009 QG31, P/2009 Q4, P/2009 Q1, 2009 OC, P/2009 O3, 2004 TN, 2002 TN30
A13Naef Obs. in Switzerland, 1 in MPEC 2009-U73 -- 2009 KM7
D81Nagano Obs. in Japan, 2 in MPEC 2009-U85 -- 217P, 118P
J47Nazaret Obs. in Spain, 2 in MPEC 2009-U85 -- 217P, 29P
423North Ryde Obs. in New South Wales, 1 in MPEC 2009-U78 -- P/2009 Q5
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 8 in MPECs 2009-U77, 2009-U82, 2009-U83 & 2009-U85 -- C/2009 T3, P/2009 T2, P/2009 Q4, C/2008 P1, 217P, 118P, 30P, 22P
H06RAS Obs. Mayhill in New Mexico, 9 in MPECs 2009-U76, 2009-U81, 2009-U83, 2009-U84 & 2009-U85 -- P/2009 U4, C/2009 U3, C/2009 T3, P/2009 SK280, C/2009 O4, C/2008 P1, C/2007 Q3, 217P, 30P
H06%Ernesto Guido in Italy via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-U74 -- 2009 UV18
473Remanzacco Obs. in Italy, 5 in MPECs 2009-U79, 2009-U82, 2009-U85 & 2009-U87 -- 2009 UB19, P/2009 T2, P/2009 QG31, C/2006 W3, 22P
854Sabino Canyon Obs. in Arizona, 4 in MPECs 2009-U74, 2009-U75, 2009-U76 & 2009-U88 -- 2009 UW18, 2009 UV18, 2009 UC19, P/2009 U4
H36Sandlot Obs. in Kansas, 5 in MPECs 2009-U74, 2009-U75, 2009-U76, 2009-U86 & 2009-U87 -- 2009 UW18, 2009 UV18, 2009 UB19, 2009 UA19, P/2009 U4
B70Sant Celoni Obs. in Spain, 1 in MPEC 2009-U85 -- C/2008 S3
B74Santa Maria de Montmagastrell Obs. in Spain, 1 in MPEC 2009-U73 -- 2009 TK8
204Schiaparelli Obs. in Italy, 10 in MPECs 2009-U79, 2009-U81, 2009-U82 & 2009-U85 -- P/2009 T2, P/2009 SK280, P/2009 QG31, C/2009 P2, P/2009 O3, 225P, 224P, 219P, 157P, 127P
E12Siding Spring Survey (SSS) in New South Wales, 2 in MPECs 2009-U73 & 2009-U76 -- 2009 UY17, P/2009 U4
071Smolyan Obs. in Bulgaria, 3 in MPEC 2009-U85 -- C/2006 S3, 118P, 22P
691Spacewatch 0.9m telescope in Arizona, 2 in MPEC 2009-U73 -- 68359, 162168
291Spacewatch 1.8m telescope in Arizona, 18 in MPECs 2009-U73, 2009-U79 & 2009-U85 -- 2009 UN1, 2009 UM1, 2009 UM, 2009 UD2, 2009 TC8, 2009 TB3, 2009 SW171, 2009 SQ104, 2009 SB15, P/2009 QG31, P/2009 Q1, P/2009 O3, 2005 AT42, 2004 BG121, 2001 BP61, 1999 AJ39, 1995 SA, 54P
B01Taunus Obs. in Germany, 1 in MPEC 2009-U81 -- P/2009 SK280
926Tenagra II Obs. in Arizona, 13 in MPECs 2009-U73, 2009-U74, 2009-U87 & 2009-U88 -- 2009 UV18, 2009 UN, 2009 UM3, 2009 UK14, 2009 UJ5, 2009 UJ, 2009 UE, 2009 UC19, 2009 UB19, 2009 TO8, 2009 TK12, 2009 TF10, 2009 SO103
H53Thompsonville Obs. in Illinois, 2 in MPEC 2009-U85 -- C/2008 P1, 22P
H10Tzec Maun Obs. Mayhill in New Mexico, 7 in MPECs 2009-U74, 2009-U77, 2009-U82, 2009-U84 & 2009-U85 -- 2009 UV18, C/2009 U3, P/2009 T2, P/2009 Q4, 217P, 29P, 22P
D25Tzec Maun Obs. Pingelly in Western Australia, 2 in MPEC 2009-U85 -- C/2009 O4, 54P
H47Vicksburg Obs. in Mississippi, 8 in MPECs 2009-U77 & 2009-U85 -- P/2009 Q4, C/2007 N3, 217P, 118P, 81P, 47P, 30P, 29P
G56Walnut Creek Obs. in northern California, 2 in MPEC 2009-U73 -- 2009 UQ, 2009 UJ5
A79Zvezdno Obshtestvo Obs. in Bulgaria, 3 in MPECs 2009-U77, 2009-U79 & 2009-U82 -- P/2009 T2, P/2009 QG31, P/2009 Q4
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 24 October '09

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2358 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. Beginning Jan. 22nd, both are also posting impact solutions beyond 100 years for a few 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
2009 UW18JPL Sentry15492011-2093194.0e-09-4.49-4.620JPL: "Analysis based on 15 observations spanning 1.0774 days (2009-Oct-23.34501 to 2009-Oct-24.42245)." Diameter approximately 0.459 km. from mean, weighted H=19.3.
2009 UV18JPL Sentry15492016-21091012.2e-07-2.14-3.150JPL: "Analysis based on 32 observations spanning 2.0427 days (2009-Oct-22.39951 to 2009-Oct-24.44216)." Diameter approximately 2.102 km. from mean, weighted H=16.0.

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 24 October '09

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

2358Grabbed MPEC 2009-U86 - 2009 UA19 - see above
Grabbed MPEC 2009-U87 - 2009 UB19 - see above
Grabbed MPEC 2009-U88 - 2009 UC19 - see above
1903Grabbed MPEC 2009-U83 - Comet C/2009 T3 (LINEAR) - see above
Grabbed MPEC 2009-U84 - Comet C/2009 U3 (Hill) - see above
Grabbed MPEC 2009-U85 - Observations of Comets - see above
1806Grabbed MPEC 2009-U77 - Comet P/2009 Q4 (Boattini) - see above
Grabbed MPEC 2009-U78 - Comet P/2009 Q5 (McNaught) - see above
Grabbed MPEC 2009-U79 - Comet P/2009 QG31 (La Sagra) - see above
Grabbed MPEC 2009-U80 - Comet P/2009 S1 (Gibbs) - see above
Grabbed MPEC 2009-U81 - Comet P/2009 SK280 (Spacewatch-Hill) - see above
Grabbed MPEC 2009-U82 - Comet P/2009 T2 (La Sagra) - see above
1549Noted that JPL Sentry has posted 2009 UV18 as an impact risk - see above
Noted that JPL Sentry has posted 2009 UW18 as an impact risk - see above
Grabbed MPEC 2009-U73 - Daily Orbit Update - see above
Grabbed MPEC 2009-U74 - 2009 UV18 - see above
Grabbed MPEC 2009-U75 - 2009 UW18 - see above
Grabbed MPEC 2009-U76 - Comet P/2009 U4 (McNaught) - see above