Contents  on 29 June '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 June '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 three 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 June '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-M52 - "15:27 UT" - Observations of Comets


MPEC 2009-M51 - "15:10 UT" - Comet P/2009 L2 (Yang-Gao)


MPEC 2009-M50 - "15:02 UT" - Comet C/2009 K2 (Catalina)


MPEC 2009-M49 - "14:53 UT" - Comet P/2009 K1 (Gibbs)


MPEC 2009-M48 - "14:03 UT" - 2009 MN8


MPEC 2009-M47 - "13:37 UT" - 2009 MM8


<< DOU on 29 June '09 >>  MPEC 2009-M46 - "06:06 UT" - Daily Orbit Update

Observers  on 29 June '09

A total of 59 observing facilities appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 6 in MPEC 2009-M52 -- C/2009 E1, C/2008 P1, C/2006 W3, 217P, 199P, 22P
J97Alginet Obs. in Spain, 3 in MPEC 2009-M52 -- C/2008 FK75, C/2006 Q1, C/2005 L3
J10Alicante Obs. in Spain, 3 in MPECs 2009-M51 & 2009-M52 -- P/2009 L2, C/2006 W3, C/2006 Q1
J24Altamira Obs. in Spain, 3 in MPECs 2009-M51 & 2009-M52 -- P/2009 L2, 219P, 77P
J51Atlante Obs. in the Canary Islands, 7 in MPEC 2009-M52 -- C/2009 F5, C/2009 E1, C/2008 Q3, C/2008 P1, C/2006 W3, C/2006 Q1, 22P
467Auckland Obs. in New Zealand, 1 in MPEC 2009-M52 -- C/2009 F4
B88Bigmuskie Obs. in Italy, 1 in MPEC 2009-M46 -- 2001 FE90
B96Brixiis Obs. in Belgium, 2 in MPECs 2009-M51 & 2009-M52 -- P/2009 L2, C/2006 W3
493Calar Alto Obs. in Spain, 1 in MPEC 2009-M51 -- P/2009 L2
B09Capannoli Obs. in Italy, 3 in MPECs 2009-M51 & 2009-M52 -- P/2009 L2, C/2008 N1, C/2006 Q1
703Catalina Sky Survey (CSS) in Arizona, 4 in MPECs 2009-M49, 2009-M50 & 2009-M52 -- C/2009 K2, P/2009 K1, 169P, 88P
A77Chante-Perdrix Obs. in France, 5 in MPECs 2009-M51 & 2009-M52 -- P/2009 L2, C/2009 E1, C/2006 W3, C/2006 S3, 22P
B11Cima Rest Obs. in Italy, 4 in MPECs 2009-M50 & 2009-M52 -- C/2009 K2, C/2008 Q1, C/2008 N1, C/2008 A1
850Cordell-Lorenz Obs. in Tennessee, 6 in MPECs 2009-M50, 2009-M51 & 2009-M52 -- P/2009 L2, C/2009 K2, C/2009 E1, C/2008 N1, C/2006 W3, C/2006 Q1
H26Doc Greiner Research Obs. (DGRO) in Wisconsin, 3 in MPECs 2009-M46 & 2009-M52 -- 2009 MX6, C/2009 E1, 2002 UX
I21El Condor Obs. in Argentina, 10 in MPECs 2009-M46, 2009-M51 & 2009-M52 -- 2009 MA, P/2009 L2, 2009 KN4, C/2008 Q3, 2001 FE90, 52768, 17274, 154244, 143651, 433
762Four Winds Obs. in Michigan, 3 in MPEC 2009-M52 -- C/2006 Q1, 116P, 65P
750Hobbs Obs. in Wisconsin, 1 in MPEC 2009-M51 -- P/2009 L2
J28Jaen Obs. in Spain, 1 in MPEC 2009-M52 -- 22P
D32JiangNanTianChi Obs. in China, 1 in MPEC 2009-M51 -- P/2009 L2
585Kiev Comet Station in the Ukraine, 7 in MPECs 2009-M50, 2009-M51 & 2009-M52 -- P/2009 L2, C/2009 K2, C/2009 E1, C/2006 W3, 219P, 88P, 22P
704LINEAR in New Mexico, 1 in MPEC 2009-M52 -- 219P
212La Dehesilla Obs. in Spain, 4 in MPECs 2009-M51 & 2009-M52 -- P/2009 L2, C/2008 Q3, C/2008 FK75, C/2005 L3
J75La Sagra Obs. in Spain, 4 in MPEC 2009-M46 -- 2009 LS, 2009 KL2, 194386, 9950
J38La Vara Obs. in Spain, 2 in MPEC 2009-M52 -- C/2006 W3, C/2005 L3
J59Linceo Obs. in Spain, 1 in MPEC 2009-M51 -- P/2009 L2
A02Masia Cal Maciarol Modul 8 in Spain, 1 in MPEC 2009-M51 -- P/2009 L2
232Masquefa Obs. in Spain, 4 in MPECs 2009-M51 & 2009-M52 -- P/2009 L2, C/2008 FK75, C/2006 Q1, C/2005 L3
213Montcabre Obs. in Spain, 6 in MPECs 2009-M51 & 2009-M52 -- P/2009 L2, C/2009 E1, C/2006 W3, C/2006 Q1, C/2005 L3, 22P
945Monte Deva Obs. in Spain, 1 in MPEC 2009-M52 -- C/2006 Q1
900Moriyama Obs. in Japan, 20 in MPECs 2009-M50, 2009-M51 & 2009-M52 -- P/2009 L2, C/2009 K2, C/2009 F5, C/2009 F4, C/2009 E1, C/2008 Q3, C/2008 P1, C/2008 N1, C/2008 FK75, C/2008 A1, C/2006 W3, C/2006 S3, C/2006 Q1, C/2005 L3, 219P, 217P, 116P, 88P, 65P, 22P
G96Mt. Lemmon Survey (MLS) in Arizona, 2 in MPECs 2009-M47 & 2009-M52 -- 2009 MM8, C/2007 M1
A13Naef Obs. in Switzerland, 3 in MPECs 2009-M46 & 2009-M52 -- 2009 KJ22, C/2008 N1, 9162
D81Nagano Obs. in Japan, 1 in MPEC 2009-M52 -- C/2006 Q1
J47Nazaret Obs. in Spain, 10 in MPECs 2009-M51 & 2009-M52 -- P/2009 L2, C/2009 E1, C/2008 Q3, C/2008 N1, C/2006 W3, C/2005 L3, 219P, 169P, 88P, 22P
B49Paus Obs. in Spain, 4 in MPECs 2009-M51 & 2009-M52 -- P/2009 L2, C/2009 E1, C/2008 N1, C/2006 W3
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 8 in MPECs 2009-M50, 2009-M51 & 2009-M52 -- P/2009 L2, C/2009 K2, C/2009 E1, C/2008 N1, C/2007 M1, C/2006 W3, C/2006 S3, 22P
J53Posadas Obs. in Spain, 10 in MPECs 2009-M51 & 2009-M52 -- P/2009 L2, C/2008 Q3, C/2008 Q1, C/2008 FK75, C/2006 W3, C/2006 Q1, C/2005 L3, 217P, 65P, 22P
D29Purple Mtn. Obs. XuYi Station in China, 1 in MPEC 2009-M51 -- P/2009 L2
H06RAS Obs. Mayhill in New Mexico, 4 in MPECs 2009-M51 & 2009-M52 -- P/2009 L2, C/2006 W3, 217P, 22P
D90RAS Obs. Moorook in South Australia, 2 in MPEC 2009-M52 -- 199P, 88P
I20Rio Cuarto Obs. in Argentina, 1 in MPEC 2009-M52 -- C/2008 Q3
939Rodeno Obs. in Spain, 10 in MPECs 2009-M51 & 2009-M52 -- P/2009 L2, C/2008 FK75, C/2006 W3, C/2006 Q1, C/2005 L3, 217P, 88P, 77P, 65P, 22P
J07SPAG Monfrague Obs. in Spain, 1 in MPEC 2009-M52 -- C/2006 W3
B74Santa Maria de Montmagastrell Obs. in Spain, 6 in MPECs 2009-M51 & 2009-M52 -- P/2009 L2, C/2009 F4, C/2008 FK75, C/2005 L3, 65P, 22P
204Schiaparelli Obs. in Italy, 1 in MPEC 2009-M49 -- P/2009 K1
D93Sendai Obs. in Japan, 9 in MPECs 2009-M51 & 2009-M52 -- P/2009 L2, C/2008 Q3, C/2008 Q1, C/2008 A1, C/2006 W3, C/2005 L3, 217P, 88P, 65P
E12Siding Spring Survey in New South Wales, 1 in MPEC 2009-M48 -- 2009 MN8
510Siegen Obs. in Germany, 4 in MPECs 2009-M51 & 2009-M52 -- P/2009 L2, C/2009 E1, C/2006 W3, C/2006 Q1
B40Skylive Obs. in Italy, 9 in MPECs 2009-M46, 2009-M51 & 2009-M52 -- P/2009 L2, C/2009 E1, C/2008 N1, C/2008 FK75, C/2006 W3, C/2006 Q1, C/2005 L3, 2002 LV, 22P
291Spacewatch 1.8m telescope in Arizona, 1 in MPEC 2009-M52 -- 169P
I19Tanti Obs. in Argentina, 1 in MPEC 2009-M52 -- C/2008 Q3
926Tenagra II Obs. in Arizona, 1 in MPEC 2009-M51 -- P/2009 L2
B26Terres Blanches Obs. in France, 2 in MPEC 2009-M52 -- C/2008 FK75, C/2005 L3
H53Thompsonville Obs. in Illinois, 4 in MPECs 2009-M46 & 2009-M52 -- C/2008 FK75, C/2006 Q1, 2001 FE90, 212546
H10Tzec Maun Obs. Mayhill in New Mexico, 5 in MPEC 2009-M52 -- C/2009 F4, C/2008 Q1, C/2006 W3, 219P, 22P
H47Vicksburg Obs. in Mississippi, 4 in MPECs 2009-M51 & 2009-M52 -- P/2009 L2, C/2006 W3, 217P, 22P
367Yatsuka Obs. in Japan, 6 in MPECs 2009-M51 & 2009-M52 -- P/2009 L2, C/2008 Q3, C/2006 W3, C/2006 Q1, C/2005 L3, 88P
J08Zonalunar Obs. in Spain, 4 in MPEC 2009-M52 -- C/2008 N1, C/2006 W3, C/2005 L3, 88P
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 29 June '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 MN8JPL Sentry16012065-210838.0e-09-7.14-7.370JPL: "Analysis based on 9 observations spanning .89031 days (2009-Jun-28.66337 to 2009-Jun-29.55368)." Diameter approximately 0.093 km. from mean, weighted H=22.8.

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 June '09

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

1601Noted that JPL Sentry has posted 2009 MN8 as an impact risk - see above
Grabbed MPEC 2009-M52 - Observations of Comets - see above
1531Grabbed MPEC 2009-M50 - Comet C/2009 K2 (Catalina) - see above
Grabbed MPEC 2009-M51 - Comet P/2009 L2 (Yang-Gao) - see above
1502Grabbed MPEC 2009-M49 - Comet P/2009 K1 (Gibbs) - see above
1429Grabbed MPEC 2009-M46 - Daily Orbit Update - see above
Grabbed MPEC 2009-M47 - 2009 MM8 - see above
Grabbed MPEC 2009-M48 - 2009 MN8 - see above