Contents  on 29 May '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 29 May '09

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

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had five updated listings. Of these, four were "one nighters." So far The Tracking News has counted a total of seven listings on the NEOCP at some point today.

New MPECs  on 29 May '09

Minor Planet Electronic Circulars

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


MPEC 2009-K72 - "19:33 UT" - Observations of Comets


MPEC 2009-K71 - "19:22 UT" - Comet C/2009 F6 (Yi-SWAN)


MPEC 2009-K70 - "19:17 UT" - Comet C/2009 F5 (McNaught)


MPEC 2009-K69 - "19:13 UT" - Comet C/2009 F4 (McNaught)


MPEC 2009-K68 - "19:08 UT" - Comet C/2009 E1 (Itagaki)


MPEC 2009-K67 - "15:29 UT" - Comet C/2009 K5 (McNaught)


<< DOU on 29 May '09 >>  MPEC 2009-K66 - "06:08 UT" - Daily Orbit Update

Observers  on 29 May '09

A total of 63 observing facilities appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 7 in MPECs 2009-K68, 2009-K70, 2009-K71 & 2009-K72 -- C/2009 F6, C/2009 F5, C/2009 E1, C/2006 W3, C/2006 Q1, C/2005 L3, 74P
J10Alicante Obs. in Spain, 6 in MPEC 2009-K72 -- C/2008 FK75, C/2006 Q1, 116P, 88P, 77P, 65P
J24Altamira Obs. in Spain, 17 in MPECs 2009-K68, 2009-K70 & 2009-K72 -- C/2009 F5, C/2009 E1, C/2008 Q1, C/2008 N1, C/2008 A1, C/2006 W3, C/2006 Q1, C/2005 L3, 217P, 209P, 199P, 144P, 116P, 74P, 65P, 29P, 22P
J51Atlante Obs. in the Canary Islands, 5 in MPECs 2009-K70 & 2009-K72 -- C/2009 F5, C/2006 Q1, 116P, 74P, 65P
467Auckland Obs. in New Zealand, 5 in MPECs 2009-K69 & 2009-K72 -- C/2009 F4, C/2008 FK75, 143P, 88P, 77P
I32Beta Orionis Obs. in Argentina, 1 in MPEC 2009-K72 -- C/2008 Q3
B88Bigmuskie Obs. in Italy, 3 in MPEC 2009-K66 -- 159399, 5693, 3988
215Buchloe Obs. in Germany, 8 in MPEC 2009-K72 -- C/2008 FK75, C/2007 M1, C/2007 D1, C/2006 Q1, C/2002 VQ94, 144P, 116P, 74P
235CAST Obs. in Italy, 9 in MPEC 2009-K72 -- C/2008 FK75, C/2006 Q1, C/2005 L3, 144P, 116P, 88P, 77P, 74P, 65P
I77CEAMIG-REA in Brazil, 1 in MPEC 2009-K67 -- C/2009 K5
B09Capannoli Obs. in Italy, 3 in MPECs 2009-K70 & 2009-K72 -- C/2009 F5, C/2006 Q1, C/2005 L3
703Catalina Sky Survey (CSS) in Arizona, 5 in MPECs 2009-K66 & 2009-K72 -- C/2008 Q1, C/2007 M1, 5626, 217P, 77P
693Catalina Station in Arizona, 1 in MPEC 2009-K66 -- 2009 KE5
470Ceccano Obs. in Italy, 3 in MPEC 2009-K72 -- C/2008 A1, C/2006 W3, C/2006 Q1
A77Chante-Perdrix Obs. in France, 3 in MPECs 2009-K70 & 2009-K72 -- C/2009 F5, C/2006 W3, C/2006 Q1
H26Doc Greiner Research Obs. in Wisconsin, 1 in MPEC 2009-K66 -- 2006 HR29
I21El Condor Obs. in Argentina, 2 in MPEC 2009-K72 -- C/2008 Q3, C/2007 B2
808El Leoncito Obs. in Argentina, 4 in MPECs 2009-K69, 2009-K70 & 2009-K72 -- C/2009 F5, C/2009 F4, C/2008 Q3, 143P
E85Farm Cove Obs. in New Zealand, 3 in MPECs 2009-K69, 2009-K70 & 2009-K72 -- C/2009 F5, C/2009 F4, 199P
J95Great Shefford Obs. in England, 4 in MPEC 2009-K66 -- 2009 KW2, 2009 KR4, 2009 KE5, 2009 KD5
E16Grove Creek Obs. in New South Wales, 6 in MPECs 2009-K66, 2009-K67 & 2009-K72 -- 2009 KE3, 2009 KC3, C/2009 K5, C/2007 B2, 89P, 22P
442Gualba Obs. in Spain, 2 in MPEC 2009-K72 -- C/2005 L3, 19P
B19Iluro Obs. in Spain, 3 in MPEC 2009-K72 -- C/2008 FK75, C/2006 Q1, C/2005 L3
987Isle of Man Obs. on the Isle of Man, 1 in MPEC 2009-K72 -- C/2006 W3
J28Jaen Obs. in Spain, 1 in MPEC 2009-K72 -- C/2008 FK75
D32JiangNanTianChi Obs. in China, 2 in MPEC 2009-K72 -- 77P, 74P
585Kiev Comet Station in the Ukraine, 4 in MPECs 2009-K69, 2009-K70, 2009-K71 & 2009-K72 -- C/2009 F6, C/2009 F5, C/2009 F4, 143P
704LINEAR in New Mexico, 2 in MPEC 2009-K66 -- 2009 HV44, 159608
J31La Axarquia Obs. in Spain, 2 in MPEC 2009-K72 -- C/2005 L3, 65P
212La Dehesilla Obs. in Spain, 9 in MPECs 2009-K69, 2009-K70 & 2009-K72 -- C/2009 F5, C/2009 F4, C/2008 Q1, C/2008 FK75, C/2006 Q1, C/2005 S4, 210P, 144P, 29P
J75La Sagra Obs. in Spain, 3 in MPEC 2009-K66 -- 2009 KY1, 2009 KD5, 2000 KN44
J38La Vara Obs. in Spain, 3 in MPEC 2009-K72 -- 116P, 88P, 65P
844Los Molinos Obs. in Uruguay, 2 in MPECs 2009-K67 & 2009-K72 -- C/2009 K5, C/2008 Q3
H01Magdalena Ridge Obs. (MRO) in New Mexico, 4 in MPEC 2009-K66 -- 2009 KT4, 2009 KN4, 2009 KM, 2009 HC
B82Maidbronn Obs. in Germany, 3 in MPECs 2009-K71 & 2009-K72 -- C/2009 F6, C/2006 Q1, 19P
J40Malaga Obs. in Spain, 2 in MPEC 2009-K72 -- C/2008 N1, C/2006 Q1
932McCarthy Obs. in Connecticut, 1 in MPEC 2009-K66 -- 2009 KK
J46Montana Blanca Obs. in the Canary Islands, 1 in MPEC 2009-K70 -- C/2009 F5
213Montcabre Obs. in Spain, 4 in MPEC 2009-K72 -- C/2008 FK75, C/2006 Q1, 116P, 65P
945Monte Deva Obs. in Spain, 7 in MPEC 2009-K72 -- C/2006 W3, C/2006 Q1, C/2005 L3, 116P, 77P, 65P, 22P
G96Mt. Lemmon Survey in Arizona, 1 in MPEC 2009-K66 -- 2002 HF8
A13Naef Obs. in Switzerland, 5 in MPECs 2009-K66 & 2009-K72 -- 2000 KN44, 159399, 138883, 220P, 158P
J47Nazaret Obs. in Spain, 10 in MPECs 2009-K70 & 2009-K72 -- C/2009 F5, C/2008 FK75, C/2006 Q1, C/2005 L3, 210P, 144P, 116P, 67P, 29P, 19P
B49Paus Obs. in Spain, 3 in MPEC 2009-K72 -- C/2008 N1, C/2007 M1, C/2006 Q1
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 8 in MPECs 2009-K66, 2009-K70 & 2009-K72 -- 2009 JM2, 2009 JK1, C/2009 F5, C/2008 Q1, C/2006 Q1, C/2005 L3, 65P, 19P
J53Posadas Obs. in Spain, 7 in MPEC 2009-K72 -- C/2008 Q1, C/2008 FK75, C/2006 Q1, C/2005 L3, 88P, 77P, 65P
H06RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-K72 -- C/2006 S3
D90RAS Obs. Moorook in South Australia, 1 in MPEC 2009-K72 -- C/2006 S3
473Remanzacco Obs. in Italy, 3 in MPECs 2009-K70 & 2009-K72 -- C/2009 F5, C/2008 Q1, C/2006 Q1
B70Sant Celoni Obs. in Spain, 1 in MPEC 2009-K72 -- C/2006 W3
B74Santa Maria de Montmagastrell Obs. in Spain, 8 in MPECs 2009-K69 & 2009-K72 -- C/2009 F4, C/2008 N1, 144P, 143P, 88P, 74P, 22P, 19P
204Schiaparelli Obs. in Italy, 12 in MPECs 2009-K69, 2009-K70 & 2009-K72 -- C/2009 F5, C/2009 F4, C/2008 Q1, C/2008 FK75, C/2007 M1, C/2006 Q1, C/2005 S4, C/2005 L3, C/2002 VQ94, 220P, 169P, 158P
E12Siding Spring Survey (SSS) in New South Wales, 2 in MPECs 2009-K66 & 2009-K67 -- C/2009 K5, 1566
B40Skylive Obs. in Italy, 3 in MPEC 2009-K72 -- C/2006 W3, C/2006 Q1, 116P
691Spacewatch 0.9m telescope in Arizona, 5 in MPECs 2009-K66 & 2009-K72 -- 2009 KE5, 2009 HV58, 2004 JR1, 65803, 220P
291Spacewatch 1.8m telescope in Arizona, 10 in MPEC 2009-K66 -- 2009 KM, 2009 KK, 2009 KE5, 2009 KD5, 2009 JR5, 2009 HZ67, 2009 HV58, 2009 HF88, 2009 HC21, 2004 BJ86
A71Stixendorf Obs. in Austria, 7 in MPECs 2009-K68 & 2009-K72 -- C/2009 E1, C/2008 Q1, C/2006 W3, 88P, 77P, 67P, 65P
6735Jim Young via Table Mtn. Obs. in southern California, 1 in MPEC 2009-K66 -- 2009 KE5
I19Tanti Obs. in Argentina, 3 in MPECs 2009-K69, 2009-K70 & 2009-K72 -- C/2009 F5, C/2009 F4, C/2008 Q3
B26Terres Blanches Obs. in France, 1 in MPEC 2009-K72 -- C/2007 D1
H10Tzec Maun Obs. Mayhill in New Mexico, 4 in MPECs 2009-K68 & 2009-K72 -- C/2009 E1, C/2006 W3, 169P, 43P
D25Tzec Maun Obs. Pingelly in Western Australia, 2 in MPECs 2009-K69 & 2009-K72 -- C/2009 F4, 89P
A79Zvezdno Obshtestvo Obs. in Bulgaria, 1 in MPEC 2009-K70 -- C/2009 F5
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 29 May '09

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS at 2358 UTC 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 KT4NEODyS1319R E M O V E D-
JPL Sentry1319R E M O V E DJPL: Risk listing removed at 0929 UTC.
2009 KN4JPL Sentry13192065-2101143.4e-07-3.36-3.640JPL: "Analysis based on 20 observations spanning 4.6815 days (2009-May-23.78358 to 2009-May-28.46513)." Diameter approximately 0.807 km. from mean, weighted H=18.1.
NEODyS13192065-208582.17e-07-3.54-3.690NEODyS: "Based on 20 optical observations (of which 0 are rejected as outliers) from 2009/05/23.784 to 2009/05/28.466."
2009 KC3NEODyS1319R E M O V E D-
JPL Sentry1319R E M O V E DJPL: Risk listing removed at 0850 UTC.
2009 KMJPL Sentry1319209114.1e-07-3.87-3.870JPL: "Analysis based on 61 observations spanning 11.069 days (2009-May-17.26047 to 2009-May-28.3295)." Diameter approximately 0.310 km. from mean, weighted H=20.2.
2009 KKJPL Sentry1633202215.7e-05-1.40-1.401JPL: "Analysis based on 83 observations spanning 11.027 days (2009-May-17.25987 to 2009-May-28.28729)." Diameter approximately 0.270 km. from mean, weighted H=20.5.
NEODyS1319202215.67e-05-1.40-1.401NEODyS: "Based on 83 optical observations (of which 0 are rejected as outliers) from 2009/05/17.261 to 2009/05/28.288. NOTE: The Virtual Impactor in 2022/05/29.761 ... is rated as Torino Scale 1."
2009 HCJPL Sentry13192095-209921.0e-06-6.35-6.380JPL: "Analysis based on 146 observations spanning 41.139 days (2009-Apr-17.23164 to 2009-May-28.37086)." Diameter approximately 0.037 km. from mean, weighted H=24.8.

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 May '09

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

2147Grabbed MPEC 2009-K70 - Comet C/2009 F5 (McNaught) - see above
Grabbed MPEC 2009-K71 - Comet C/2009 F6 (Yi-SWAN) - see above
Grabbed MPEC 2009-K72 - Observations of Comets - see above
1919Grabbed MPEC 2009-K68 - Comet C/2009 E1 (Itagaki) - see above
Grabbed MPEC 2009-K69 - Comet C/2009 F4 (McNaught) - see above
1633Noted that JPL Sentry has updated its 2009 KK risk assessment - see above
Grabbed MPEC 2009-K67 - Comet C/2009 K5 (McNaught) - see above
1319Noted that JPL Sentry has updated its 2009 HC risk assessment - see above
Noted that JPL Sentry has removed 2009 KC3 as an impact risk - see above
Noted that NEODyS has removed 2009 KC3 as an impact risk - see above
Noted that NEODyS has updated its 2009 KK risk assessment - see above
Noted that JPL Sentry has updated its 2009 KM risk assessment - see above
Noted that JPL Sentry has updated its 2009 KN4 risk assessment - see above
Noted that NEODyS has updated its 2009 KN4 risk assessment - see above
Noted that JPL Sentry has removed 2009 KT4 as an impact risk - see above
Noted that NEODyS has removed 2009 KT4 as an impact risk - see above
Grabbed MPEC 2009-K66 - Daily Orbit Update - see above