Contents  on 18 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 18 May '09

The MPC's NEO Confirmation Page has 1 listing: 1 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one updated listing. So far The Tracking News has counted a total of thirteen 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 18 May '09

Minor Planet Electronic Circulars

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


MPEC 2009-K18 - "19:42 UT" - Observations of Comets


MPEC 2009-K17 - "19:30 UT" - Comet C/2009 F6 (Yi-SWAN)


MPEC 2009-K16 - "19:26 UT" - Comet C/2009 F5 (McNaught)


MPEC 2009-K15 - "19:21 UT" - Comet C/2009 F4 (McNaught)


MPEC 2009-K14 - "19:13 UT" - Comet C/2009 F2 (McNaught)


MPEC 2009-K13 - "19:09 UT" - Comet C/2009 E1 (Itagaki)


MPEC 2009-K12 - "16:06 UT" - Comet C/2009 K1 (Gibbs)


MPEC 2009-K11 - "15:31 UT" - 2009 KN


MPEC 2009-K10 - "15:28 UT" - 2009 KM


MPEC 2009-K09 - "15:22 UT" - 2009 KL


MPEC 2009-K08 - "15:17 UT" - 2009 KK


MPEC 2009-K07 - "15:13 UT" - 2009 KJ


MPEC 2009-K06 - "15:10 UT" - 2009 JR5


MPEC 2009-K05 - "10:47 UT" - 2008 JM20


<< DOU on 18 May '09 >>  MPEC 2009-K04 - "06:07 UT" - Daily Orbit Update

Observers  on 18 May '09

A total of 73 observing facilities appear in today's MPECs.

CodeObserver / observatory
834AAAA Buenos Aires Obs. in Argentina, 1 in MPEC 2009-K18 -- C/2008 Q3
349Ageo Obs. in Japan, 6 in MPECs 2009-K13 & 2009-K18 -- C/2009 E1, C/2008 T2, C/2008 N1, C/2006 Q1, C/2005 L3, 209P
J10Alicante Obs. in Spain, 8 in MPECs 2009-K16 & 2009-K18 -- C/2009 F5, C/2008 N1, C/2007 N3, C/2006 W3, C/2006 Q1, 144P, 116P, 65P
J24Altamira Obs. in Spain, 11 in MPECs 2009-K15, 2009-K16 & 2009-K18 -- C/2009 F5, C/2009 F4, C/2008 FK75, C/2006 U6, C/2006 Q1, C/2005 L3, 209P, 199P, 116P, 65P, 22P
B03Alter Satzberg Obs. in Austria, 3 in MPECs 2009-K07, 2009-K08 & 2009-K12 -- 2009 KK, 2009 KJ, C/2009 K1
H55Astronomical Research Obs. (ARO) in Illinois, 15 in MPECs 2009-K04, 2009-K06, 2009-K07, 2009-K08, 2009-K09, 2009-K10 & 2009-K12 -- 2009 KM, 2009 KL, 2009 KK, 2009 KJ, C/2009 K1, 2009 JR5, 2009 JR2, 2009 JQ2, 2009 JM2, 2009 HG, 2009 HD21, 2009 FN32, 2009 CC3, 2009 AV, 2001 HY7
J51Atlante Obs. in the Canary Islands, 1 in MPEC 2009-K04 -- 2009 JM2
467Auckland Obs. in New Zealand, 9 in MPECs 2009-K15, 2009-K16 & 2009-K18 -- C/2009 F5, C/2009 F4, C/2008 Q3, C/2007 M2, C/2007 B2, C/2006 U6, 209P, 88P, 77P
B87Banyoles Obs. in Spain, 2 in MPEC 2009-K18 -- C/2008 Q1, C/2005 L3
I32Beta Orionis Obs. in Argentina, 1 in MPEC 2009-K18 -- C/2008 Q3
B96Brixiis Obs. in Belgium, 1 in MPEC 2009-K18 -- C/2006 Q1
235CAST Obs. in Italy, 12 in MPECs 2009-K16 & 2009-K18 -- C/2009 F5, C/2008 FK75, C/2006 Q1, C/2006 OF2, C/2005 L3, 144P, 116P, 88P, 77P, 74P, 65P, 29P
703Catalina Sky Survey (CSS) in Arizona, 14 in MPECs 2009-K04, 2009-K07, 2009-K08, 2009-K09, 2009-K10 & 2009-K18 -- 2009 KM, 2009 KL, 2009 KK, 2009 KJ, 2009 HV44, C/2008 Q1, C/2006 U6, C/2005 L3, 37655, 198856, 163696, 1863, 88P, 74P
G58Chabot Obs. in northern California, 6 in MPECs 2009-K04, 2009-K08 & 2009-K10 -- 2009 KM, 2009 KK, 2001 FE90, 2000 FL1, 1998 SC15, 143651
A77Chante-Perdrix Obs. in France, 1 in MPEC 2009-K18 -- 19P
106Crni Vrh Obs. in Slovenia, 1 in MPEC 2009-K04 -- 198856
H26Doc Greiner Research Obs. (DGRO) in Wisconsin, 2 in MPEC 2009-K04 -- 2009 JM2, 2009 JG2
I21El Condor Obs. in Argentina, 1 in MPEC 2009-K18 -- C/2007 Q3
E85Farm Cove Obs. in New Zealand, 1 in MPEC 2009-K16 -- C/2009 F5
595Farra d'Isonzo Obs. in Italy, 3 in MPECs 2009-K07, 2009-K08 & 2009-K12 -- 2009 KK, 2009 KJ, C/2009 K1
E10Faulkes Telescope South in New South Wales, 1 in MPEC 2009-K06 -- 2009 JR5
E94Gisborne Obs. in New Zealand, 2 in MPEC 2009-K18 -- C/2008 Q3, 116P
J95Great Shefford Obs. in England, 2 in MPECs 2009-K05 & 2009-K09 -- 2009 KL, 2008 JM20
987Isle of Man Obs. on the Isle of Man, 1 in MPEC 2009-K17 -- C/2009 F6
J28Jaen Obs. in Spain, 2 in MPECs 2009-K08 & 2009-K18 -- 2009 KK, C/2005 L3
415Kambah Obs. in the Australian Capital Territory, 1 in MPEC 2009-K18 -- C/2008 Q3
585Kiev Comet Station in the Ukraine, 8 in MPECs 2009-K15, 2009-K16, 2009-K17 & 2009-K18 -- C/2009 F6, C/2009 F5, C/2009 F4, C/2008 Q1, 116P, 88P, 77P, 67P
400Kitami Obs. in Japan, 1 in MPEC 2009-K18 -- C/2007 D1
J31La Axarquia Obs. in Spain, 2 in MPECs 2009-K16 & 2009-K18 -- C/2009 F5, C/2006 Q1
J87La Canada Obs. in Spain, 1 in MPEC 2009-K18 -- 88P
212La Dehesilla Obs. in Spain, 12 in MPECs 2009-K15 & 2009-K18 -- C/2009 F4, C/2008 Q1, C/2007 N3, C/2006 OF2, C/2005 L3, 144P, 116P, 88P, 77P, 74P, 65P, 29P
J75La Sagra Obs. in Spain, 1 in MPEC 2009-K16 -- C/2009 F5
B33Libbiano Obs. in Italy, 4 in MPEC 2009-K18 -- C/2008 FK75, 88P, 77P, 65P
H01Magdalena Ridge Obs. (MRO) in New Mexico, 5 in MPECs 2009-K06, 2009-K08, 2009-K09, 2009-K10 & 2009-K11 -- 2009 KN, 2009 KM, 2009 KL, 2009 KK, 2009 JR5
B82Maidbronn Obs. in Germany, 3 in MPEC 2009-K18 -- C/2006 Q1, C/2005 L3, 19P
J40Malaga Obs. in Spain, 3 in MPEC 2009-K18 -- 116P, 67P, 29P
232Masquefa Obs. in Spain, 3 in MPEC 2009-K18 -- C/2006 Q1, C/2005 L3, 65P
118Modra Obs. in Slovakia, 1 in MPEC 2009-K18 -- C/2006 Q1
J45Montana Cabreja Obs. in the Canary Islands, 3 in MPEC 2009-K18 -- C/2007 N3, C/2006 OF2, 144P
213Montcabre Obs. in Spain, 5 in MPECs 2009-K17 & 2009-K18 -- C/2009 F6, C/2006 Q1, 67P, 29P, 19P
900Moriyama Obs. in Japan, 11 in MPECs 2009-K15, 2009-K16, 2009-K17 & 2009-K18 -- C/2009 F6, C/2009 F5, C/2009 F4, C/2008 T2, C/2008 FK75, C/2007 N3, 116P, 88P, 74P, 67P, 65P
G96Mt. Lemmon Survey (MLS) in Arizona, 12 in MPECs 2009-K04, 2009-K06, 2009-K07, 2009-K08, 2009-K09, 2009-K10, 2009-K11, 2009-K12 & 2009-K18 -- 2009 KN, 2009 KM, 2009 KL, 2009 KK, 2009 KJ, C/2009 K1, 2009 JR5, 2008 EN82, P/2005 SB216, 40329, 207P, 158P
J93Mt. Tuffley Obs. in England, 1 in MPEC 2009-K18 -- 116P
J47Nazaret Obs. in Spain, 4 in MPEC 2009-K18 -- 144P, 67P, 29P, 19P
423North Ryde Obs. in New South Wales, 4 in MPECs 2009-K14, 2009-K15 & 2009-K18 -- C/2009 F4, C/2009 F2, C/2008 Q3, C/2007 B2
D92Osaki Obs. in Japan, 9 in MPECs 2009-K17 & 2009-K18 -- C/2009 F6, C/2008 T2, C/2007 N3, 116P, 88P, 74P, 65P, 29P, 19P
B49Paus Obs. in Spain, 2 in MPEC 2009-K18 -- C/2008 Q1, C/2008 FK75
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 3 in MPEC 2009-K18 -- C/2005 L3, 88P, 65P
B94Petrozavodsk Obs. in Russia, 5 in MPEC 2009-K18 -- C/2007 N3, C/2006 Q1, C/2005 L3, 67P, 65P
J53Posadas Obs. in Spain, 11 in MPECs 2009-K16 & 2009-K18 -- C/2009 F5, C/2008 Q1, C/2008 FK75, C/2007 D1, C/2006 U6, C/2006 Q1, C/2005 L3, 143P, 116P, 77P, 65P
H06RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-K13 -- C/2009 E1
473Remanzacco Obs. in Italy, 2 in MPECs 2009-K07 & 2009-K08 -- 2009 KK, 2009 KJ
854Sabino Canyon Obs. in Arizona, 4 in MPECs 2009-K07, 2009-K08, 2009-K09 & 2009-K10 -- 2009 KM, 2009 KL, 2009 KK, 2009 KJ
H36Sandlot Obs. in Kansas, 3 in MPECs 2009-K08, 2009-K09 & 2009-K10 -- 2009 KM, 2009 KL, 2009 KK
B70Sant Celoni Obs. in Spain, 1 in MPEC 2009-K18 -- C/2006 Q1
B74Santa Maria de Montmagastrell Obs. in Spain, 6 in MPECs 2009-K16 & 2009-K18 -- C/2009 F5, C/2008 FK75, C/2005 L3, 143P, 65P, 19P
204Schiaparelli Obs. in Italy, 5 in MPEC 2009-K18 -- C/2007 D1, P/2005 SB216, 143P, 88P, 65P
B76Schonfeld Obs. in Germany, 1 in MPEC 2009-K04 -- 2009 JM2
D93Sendai Obs. in Japan, 11 in MPEC 2009-K18 -- C/2008 T2, C/2008 Q1, C/2008 FK75, C/2006 W3, C/2006 OF2, C/2005 L3, 144P, 116P, 88P, 77P, 65P
E12Siding Spring Survey (SSS) in New South Wales, 3 in MPECs 2009-K14 & 2009-K18 -- C/2009 F2, C/2007 M2, C/2007 B2
G68Sierra Stars Obs. in northern California, 2 in MPEC 2009-K18 -- 88P, 19P
B40Skylive Obs. in Italy, 4 in MPECs 2009-K13 & 2009-K18 -- C/2009 E1, C/2006 W3, C/2006 Q1, 19P
691Spacewatch 0.9m telescope in Arizona, 2 in MPECs 2009-K06 & 2009-K18 -- 2009 JR5, 207P
291Spacewatch 1.8m telescope in Arizona, 7 in MPECs 2009-K04, 2009-K06 & 2009-K18 -- 2009 JR5, 2009 JM1, 2009 HX67, 2009 HC, 2009 FV4, 2009 DZ, 158P
A97Stammersdorf Obs. in Austria, 4 in MPEC 2009-K18 -- 77P, 74P, 65P, 29P
A71Stixendorf Obs. in Austria, 9 in MPECs 2009-K13, 2009-K17 & 2009-K18 -- C/2009 F6, C/2009 E1, C/2008 T2, C/2008 FK75, C/2006 W3, 116P, 77P, 74P, 65P
673Table Mtn. Obs. in southern California, 1 in MPEC 2009-K16 -- C/2009 F5
6735Jim Young via Table Mtn. Obs. in southern California, 2 in MPECs 2009-K05 & 2009-K07 -- 2009 KJ, 2008 JM20
I19Tanti Obs. in Argentina, 1 in MPEC 2009-K18 -- C/2008 Q3
B26Terres Blanches Obs. in France, 4 in MPECs 2009-K16 & 2009-K18 -- C/2009 F5, C/2008 FK75, 88P, 19P
194Tivoli Obs. in Namibia, 7 in MPECs 2009-K14, 2009-K16 & 2009-K18 -- C/2009 F5, C/2009 F2, C/2008 Q3, C/2007 Q3, 209P, 199P, 22P
H10Tzec Maun Obs. Mayhill in New Mexico, 5 in MPECs 2009-K15, 2009-K16 & 2009-K18 -- C/2009 F5, C/2009 F4, C/2008 FK75, 116P, 19P
A48Verona Obs. in Italy, 1 in MPEC 2009-K04 -- 2009 JM2
367Yatsuka Obs. in Japan, 5 in MPECs 2009-K16 & 2009-K18 -- C/2009 F5, C/2008 Q1, C/2008 FK75, C/2006 Q1, C/2005 L3
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 18 May '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 KNJPL Sentry1717207811.0e-10-7.72-7.720JPL: "Analysis based on 19 observations spanning 1.0340 days (2009-May-17.37524 to 2009-May-18.40922)." Diameter approximately 0.220 km. from mean, weighted H=21.0.
2009 KMJPL Sentry17172051-2107327.2e-08-4.62-5.220JPL: "Analysis based on 27 observations spanning 1.0733 days (2009-May-17.26047 to 2009-May-18.33374)." Diameter approximately 0.314 km. from mean, weighted H=20.2.
2009 KKJPL Sentry17172013-2086251.5e-05-1.87-2.300JPL: "Analysis based on 34 observations spanning 1.0337 days (2009-May-17.25987 to 2009-May-18.2936)." Diameter approximately 0.286 km. from mean, weighted H=20.4.
2009 HCJPL Sentry13162095-209859.9e-07-6.38-6.650JPL: "Analysis based on 133 observations spanning 30.116 days (2009-Apr-17.23164 to 2009-May-17.34786)." Diameter approximately 0.037 km. from mean, weighted H=24.8.
NEODyS1316209015.43e-09-8.61-8.610NEODyS: "Based on 135 optical observations (of which 2 are rejected as outliers) from 2009/04/17.232 to 2009/05/17.349."

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 18 May '09

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

2000Grabbed MPEC 2009-K13 - Comet C/2009 E1 (Itagaki) - see above
Grabbed MPEC 2009-K14 - Comet C/2009 F2 (McNaught) - see above
Grabbed MPEC 2009-K15 - Comet C/2009 F4 (McNaught) - see above
Grabbed MPEC 2009-K16 - Comet C/2009 F5 (McNaught) - see above
Grabbed MPEC 2009-K17 - Comet C/2009 F6 (Yi-SWAN) - see above
Grabbed MPEC 2009-K18 - Observations of Comets - see above
1717Noted that JPL Sentry has posted 2009 KK as an impact risk - see above
Noted that JPL Sentry has posted 2009 KM as an impact risk - see above
Noted that JPL Sentry has posted 2009 KN as an impact risk - see above
Grabbed MPEC 2009-K12 - Comet C/2009 K1 (Gibbs) - see above
1607Grabbed MPEC 2009-K11 - 2009 KN - see above
1531Grabbed MPEC 2009-K06 - 2009 JR5 - see above
Grabbed MPEC 2009-K07 - 2009 KJ - see above
Grabbed MPEC 2009-K08 - 2009 KK - see above
Grabbed MPEC 2009-K09 - 2009 KL - see above
Grabbed MPEC 2009-K10 - 2009 KM - see above
1316Noted that JPL Sentry has updated its 2009 HC risk assessment - see above
Noted that NEODyS has updated its 2009 HC risk assessment - see above
Grabbed MPEC 2009-K04 - Daily Orbit Update - see above
Grabbed MPEC 2009-K05 - 2008 JM20 - see above