Contents  on 23 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 23 May '09

The MPC's NEO Confirmation Page has 4 listings: 2 new, 2 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two new and two updated listings. All of these were "one nighters." So far The Tracking News has counted a total of five 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 23 May '09

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there have been seven MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2009-K35 - "15:48 UT" - Observations of Comets


MPEC 2009-K34 - "15:34 UT" - Comet C/2009 F6 (Yi-SWAN)


MPEC 2009-K33 - "14:31 UT" - Comet C/2009 F5 (McNaught)


MPEC 2009-K32 - "14:27 UT" - Comet C/2009 F4 (McNaught)


MPEC 2009-K31 - "14:22 UT" - Comet C/2009 E1 (Itagaki)


<< DOU on 23 May '09 >>  MPEC 2009-K30 - "06:07 UT" - Daily Orbit Update


MPEC 2009-K29 - "02:11 UT" - 2009 KW2

Observers  on 23 May '09

A total of 61 observing facilities appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 1 in MPEC 2009-K35 -- C/2008 A1
J10Alicante Obs. in Spain, 3 in MPEC 2009-K35 -- C/2006 OF2, 116P, 29P
J24Altamira Obs. in Spain, 16 in MPECs 2009-K31, 2009-K33 & 2009-K35 -- C/2009 F5, C/2009 E1, C/2008 T2, C/2008 Q1, C/2008 FK75, C/2008 A1, C/2007 N3, C/2006 Q1, C/2006 OF2, 217P, 144P, 116P, 88P, 77P, 74P, 65P
B03Alter Satzberg Obs. in Austria, 1 in MPEC 2009-K30 -- 2009 KJ
H55Astronomical Research Obs. (ARO) in Illinois, 9 in MPEC 2009-K30 -- 2009 KY1, 2009 KM, 2009 KL, 2009 KK, 2009 HG, 2009 FN28, 2006 SU19, 2003 MU, 154244
J51Atlante Obs. in the Canary Islands, 2 in MPEC 2009-K35 -- 88P, 65P
A81Balzaretto Obs. in Italy, 2 in MPEC 2009-K35 -- 116P, 65P
B87Banyoles Obs. in Spain, 1 in MPEC 2009-K35 -- 116P
I32Beta Orionis Obs. in Argentina, 1 in MPEC 2009-K35 -- C/2008 Q3
300Bisei Spaceguard Center in Japan, 1 in MPEC 2009-K30 -- 2009 KV2
B96Brixiis Obs. in Belgium, 2 in MPEC 2009-K35 -- C/2006 Q1, 77P
215Buchloe Obs. in Germany, 10 in MPECs 2009-K32, 2009-K33 & 2009-K35 -- C/2009 F5, C/2009 F4, C/2008 Q1, C/2006 OF2, C/2005 L3, 220P, 218P, 215P, 29P, 19P
235CAST Obs. in Italy, 4 in MPEC 2009-K35 -- C/2008 FK75, C/2006 W3, C/2006 Q1, C/2005 L3
I77CEAMIG-REA in Brazil, 1 in MPEC 2009-K29 -- 2009 KW2
B09Capannoli Obs. in Italy, 5 in MPEC 2009-K35 -- C/2008 Q1, C/2008 FK75, 88P, 74P, 65P
B20Carmelita Obs. in Spain, 5 in MPEC 2009-K35 -- C/2006 Q1, C/2005 L3, 116P, 77P, 65P
160Castelmartini Obs. in Italy, 5 in MPECs 2009-K31 & 2009-K35 -- C/2009 E1, C/2006 W3, C/2006 Q1, 116P, 65P
703Catalina Sky Survey in Arizona, 1 in MPEC 2009-K35 -- 210P
A77Chante-Perdrix Obs. in France, 1 in MPEC 2009-K33 -- C/2009 F5
850Cordell-Lorenz Obs. in Tennessee, 3 in MPEC 2009-K35 -- C/2008 N1, 219P, 19P
I31Cristo Rey Obs. in Argentina, 1 in MPEC 2009-K35 -- C/2008 Q3
B83Gieres Obs. in France, 1 in MPEC 2009-K35 -- C/2005 L3
J95Great Shefford Obs. in England, 1 in MPEC 2009-K30 -- 2009 KV2
E16Grove Creek Obs. in New South Wales, 1 in MPEC 2009-K35 -- 218P
442Gualba Obs. in Spain, 2 in MPECs 2009-K31 & 2009-K35 -- C/2009 E1, 29P
379Hamamatsu-Yuto Obs. in Japan, 1 in MPEC 2009-K35 -- C/2006 W3
240Herrenberg Obs. in Germany, 1 in MPEC 2009-K35 -- C/2005 L3
B19Iluro Obs. in Spain, 2 in MPEC 2009-K35 -- C/2008 FK75, C/2006 Q1
J28Jaen Obs. in Spain, 1 in MPEC 2009-K35 -- C/2006 Q1
585Kiev Comet Station in the Ukraine, 7 in MPECs 2009-K31, 2009-K32, 2009-K33, 2009-K34 & 2009-K35 -- C/2009 F6, C/2009 F5, C/2009 F4, C/2009 E1, C/2008 FK75, 77P, 67P
704LINEAR in New Mexico, 17 in MPECs 2009-K30 & 2009-K35 -- 2008 SN1, 2007 VW137, 2007 TY18, C/2006 U6, 1998 KG3, 65996, 53435, 24445, 185851, 164202, 137170, 100756, 4503, 2368, 1862, 1580, 143P
J31La Axarquia Obs. in Spain, 1 in MPEC 2009-K35 -- 116P
212La Dehesilla Obs. in Spain, 4 in MPECs 2009-K32 & 2009-K35 -- C/2009 F4, C/2008 FK75, 218P, 210P
J75La Sagra Obs. in Spain, 2 in MPECs 2009-K33 & 2009-K35 -- C/2009 F5, 215P
B82Maidbronn Obs. in Germany, 4 in MPECs 2009-K34 & 2009-K35 -- C/2009 F6, C/2006 Q1, C/2005 L3, 19P
J46Montana Blanca Obs. in the Canary Islands, 1 in MPEC 2009-K35 -- 65P
213Montcabre Obs. in Spain, 1 in MPEC 2009-K35 -- C/2008 FK75
945Monte Deva Obs. in Spain, 6 in MPEC 2009-K35 -- C/2008 T2, C/2008 FK75, C/2006 W3, C/2006 Q1, C/2005 L3, 65P
900Moriyama Obs. in Japan, 8 in MPECs 2009-K32 & 2009-K35 -- C/2009 F4, C/2008 Q1, C/2008 FK75, C/2006 Q1, C/2006 OF2, C/2005 L3, 77P, 29P
A13Naef Obs. in Switzerland, 2 in MPECs 2009-K30 & 2009-K35 -- 2003 GS, 215P
J47Nazaret Obs. in Spain, 11 in MPECs 2009-K33 & 2009-K35 -- C/2009 F5, C/2008 FK75, C/2005 L3, 220P, 169P, 116P, 88P, 67P, 65P, 29P, 19P
D92Osaki Obs. in Japan, 7 in MPECs 2009-K34 & 2009-K35 -- C/2009 F6, C/2008 T2, C/2007 N3, C/2006 OF2, 116P, 67P, 29P
A32Panker Obs. in Germany, 12 in MPECs 2009-K30, 2009-K34 & 2009-K35 -- C/2009 F6, C/2008 Q1, C/2008 FK75, C/2008 A1, C/2007 N3, C/2006 W3, C/2006 Q1, C/2005 L3, 207945, 116P, 65P, 29P
B49Paus Obs. in Spain, 2 in MPEC 2009-K35 -- C/2008 N1, C/2006 W3
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 5 in MPECs 2009-K30 & 2009-K35 -- 2009 JM2, C/2008 Q1, C/2008 FK75, C/2006 Q1, C/2005 L3
473Remanzacco Obs. in Italy, 1 in MPEC 2009-K35 -- C/2005 L3
461SZTE Asteroid Program in Hungary, 1 in MPEC 2009-K35 -- C/2005 S4
B70Sant Celoni Obs. in Spain, 1 in MPEC 2009-K35 -- C/2008 FK75
B74Santa Maria de Montmagastrell Obs. in Spain, 8 in MPECs 2009-K33 & 2009-K35 -- C/2009 F5, C/2008 FK75, C/2006 U6, 144P, 116P, 77P, 74P, 65P
204Schiaparelli Obs. in Italy, 9 in MPEC 2009-K35 -- C/2008 T2, C/2007 N3, C/2006 OF2, 215P, 77P, 67P, 65P, 59P, 29P
D93Sendai Obs. in Japan, 10 in MPEC 2009-K35 -- C/2008 Q1, C/2008 FK75, C/2006 W3, C/2005 L3, 217P, 116P, 88P, 77P, 74P, 65P
E12Siding Spring Survey (SSS) in New South Wales, 2 in MPECs 2009-K29 & 2009-K30 -- 2009 KW2, 2007 BT2
B40Skylive Obs. in Italy, 5 in MPECs 2009-K30, 2009-K33 & 2009-K35 -- 2009 JM2, C/2009 F5, C/2006 Q1, 77P, 65P
071Smolyan Obs. in Bulgaria, 6 in MPEC 2009-K35 -- C/2007 N3, C/2006 OF2, C/2005 L3, 144P, 67P, 59P
A97Stammersdorf Obs. in Austria, 2 in MPEC 2009-K35 -- C/2008 FK75, 88P
611Starkenburg Obs. in Germany, 1 in MPEC 2009-K30 -- 2009 KY1
A71Stixendorf Obs. in Austria, 2 in MPEC 2009-K35 -- 215P, 143P
B26Terres Blanches Obs. in France, 8 in MPEC 2009-K35 -- C/2006 U6, C/2005 L3, 144P, 143P, 116P, 88P, 74P, 19P
H10Tzec Maun Obs. Mayhill in New Mexico, 3 in MPEC 2009-K35 -- 169P, 158P, 19P
D25Tzec Maun Obs. Pingelly in Western Australia, 1 in MPEC 2009-K35 -- C/2008 Q3
H47Vicksburg Obs. in Mississippi, 4 in MPEC 2009-K35 -- C/2006 Q1, 116P, 88P, 65P
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 23 May '09

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. 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 KMJPL Sentry1614209112.9e-07-4.01-4.010JPL: "Analysis based on 47 observations spanning 4.9452 days (2009-May-17.26047 to 2009-May-22.20566)." Diameter approximately 0.310 km. from mean, weighted H=20.2.
2009 KKJPL Sentry16142022-204993.8e-05-1.57-1.631JPL: "Analysis based on 62 observations spanning 4.8779 days (2009-May-17.25987 to 2009-May-22.137774)." Diameter approximately 0.271 km. from mean, weighted H=20.5.
NEODyS16142022-203853.76e-05-1.58-1.641NEODyS: "Based on 62 optical observations (of which 0 are rejected as outliers) from 2009/05/17.261 to 2009/05/22.139. NOTE: The Virtual Impactor in 2022/05/29.771 ... is rated as Torino Scale 1."

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 23 May '09

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

1717Noted that the NEOCP has become active
1614Noted that JPL Sentry has updated its 2009 KK risk assessment - 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
Grabbed MPEC 2009-K30 - Daily Orbit Update - see above
Grabbed MPEC 2009-K31 - Comet C/2009 E1 (Itagaki) - see above
Grabbed MPEC 2009-K32 - Comet C/2009 F4 (McNaught) - see above
Grabbed MPEC 2009-K33 - Comet C/2009 F5 (McNaught) - see above
Grabbed MPEC 2009-K34 - Comet C/2009 F6 (Yi-SWAN) - see above
Grabbed MPEC 2009-K35 - Observations of Comets - see above
0434Grabbed MPEC 2009-K29 - 2009 KW2 - see above
Noted that the NEOCP has become empty