Contents  on 18 July '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 July '09

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

When last checked at 2346 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one new listing. This was a "one nighter." So far The Tracking News has counted a total of four 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 July '09

Minor Planet Electronic Circulars

As of last check at 2346 UTC, there have been nine MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2009-O14 - "21:15 UT" - Observations of Comets


MPEC 2009-O13 - "21:04 UT" - Comet P/2009 L2 (Yang-Gao)


MPEC 2009-O12 - "21:00 UT" - Comet C/2009 K5 (McNaught)


MPEC 2009-O11 - "20:56 UT" - Comet C/2009 K2 (Catalina)


MPEC 2009-O10 - "14:43 UT" - 2008 WK32


MPEC 2009-O09 - "14:41 UT" - 2008 CJ116


MPEC 2009-O08 - "12:50 UT" - 2009 OG


MPEC 2009-O07 - "11:00 UT" - 2009 OF


<< DOU on 18 July '09 >>  MPEC 2009-O06 - "06:06 UT" - Daily Orbit Update

Observers  on 18 July '09

A total of 55 observing facilities appear in today's MPECs.

CodeObserver / observatory
834AAAA Buenos Aires Obs. in Argentina, 1 in MPEC 2009-O14 -- C/2008 Q3
349Ageo Obs. in Japan, 3 in MPEC 2009-O14 -- C/2008 Q3, C/2006 W3, C/2006 Q1
J10Alicante Obs. in Spain, 5 in MPECs 2009-O13 & 2009-O14 -- P/2009 L2, C/2006 W3, C/2006 Q1, 217P, 22P
J51Atlante Obs. in the Canary Islands, 7 in MPECs 2009-O06 & 2009-O14 -- C/2008 N1, C/2006 W3, 2002 LV, 24761, 5626, 217P, 22P
A81Balzaretto Obs. in Italy, 3 in MPECs 2009-O06 & 2009-O13 -- 2009 NJ, P/2009 L2, 162483
J05Bootes Obs., 1 in MPEC 2009-O14 -- C/2008 P1
235CAST Obs. in Italy, 8 in MPECs 2009-O13 & 2009-O14 -- P/2009 L2, C/2009 E1, C/2008 N1, C/2008 FK75, C/2006 W3, C/2006 Q1, C/2005 L3, 65P
I77CEAMIG-REA in Brazil, 2 in MPECs 2009-O07 & 2009-O08 -- 2009 OG, 2009 OF
B66Casasco Obs. in Italy, 2 in MPEC 2009-O14 -- C/2006 W3, 22P
160Castelmartini Obs. in Italy, 8 in MPECs 2009-O11, 2009-O13 & 2009-O14 -- P/2009 L2, C/2009 K2, C/2009 F5, C/2009 E1, C/2008 N1, C/2008 FK75, C/2006 W3, 169P
A77Chante-Perdrix Obs. in France, 1 in MPEC 2009-O14 -- 43P
850Cordell-Lorenz Obs. in Tennessee, 2 in MPECs 2009-O11 & 2009-O13 -- P/2009 L2, C/2009 K2
H26Doc Greiner Research Obs. (DGRO) in Wisconsin, 3 in MPEC 2009-O06 -- 2009 NL, 2009 NE, 2002 LV
J21El Boalo, 1 in MPEC 2009-O06 -- 2002 LV
I21El Condor Obs. in Argentina, 9 in MPECs 2009-O06, 2009-O08 & 2009-O13 -- 2009 OG, 2009 NL, 2009 MC9, P/2009 L2, 2001 FE90, 52768, 24761, 17274, 143651
J19El Maestrat Obs. in Spain, 1 in MPEC 2009-O14 -- 22P
E10Faulkes Telescope South in New South Wales, 1 in MPEC 2009-O06 -- 2009 OC
B23Fiamene Obs. in Italy, 1 in MPEC 2009-O14 -- C/2006 W3
B83Gieres Obs. in France, 2 in MPEC 2009-O14 -- C/2006 W3, C/2006 Q1
E16Grove Creek Obs. in New South Wales, 1 in MPEC 2009-O08 -- 2009 OG
240Herrenberg Obs. in Germany, 1 in MPEC 2009-O06 -- 2005 SN25
J28Jaen Obs. in Spain, 2 in MPECs 2009-O11 & 2009-O13 -- P/2009 L2, C/2009 K2
585Kiev Comet Station in the Ukraine, 4 in MPECs 2009-O11, 2009-O13 & 2009-O14 -- P/2009 L2, C/2009 K2, C/2008 P1, 217P
704LINEAR in New Mexico, 6 in MPECs 2009-O06, 2009-O07, 2009-O13 & 2009-O14 -- 2009 OF, P/2009 L2, C/2006 W3, 2001 AA50, 16960, 15745
212La Dehesilla Obs. in Spain, 1 in MPEC 2009-O14 -- 116P
J75La Sagra Obs. in Spain, 1 in MPEC 2009-O14 -- 158P
J38La Vara Obs. in Spain, 4 in MPECs 2009-O13 & 2009-O14 -- P/2009 L2, C/2006 W3, C/2005 L3, 65P
J59Linceo Obs. in Spain, 1 in MPEC 2009-O13 -- P/2009 L2
I36Los Campitos Obs. in Argentina, 2 in MPECs 2009-O12 & 2009-O14 -- C/2009 K5, C/2007 B2
844Los Molinos Obs. in Uruguay, 1 in MPEC 2009-O14 -- 199P
130Lumezzane Obs. in Italy, 6 in MPECs 2009-O06, 2009-O11, 2009-O13 & 2009-O14 -- P/2009 L2, 2009 KJ22, C/2009 K2, C/2006 Q1, 163758, 219P
H01Magdalena Ridge Obs. (MRO) in New Mexico, 3 in MPEC 2009-O06 -- 2009 MS, 2009 MN8, 2009 FY29
213Montcabre Obs. in Spain, 1 in MPEC 2009-O14 -- C/2006 W3
945Monte Deva Obs. in Spain, 4 in MPEC 2009-O14 -- C/2006 W3, C/2006 Q1, 217P, 22P
900Moriyama Obs. in Japan, 11 in MPECs 2009-O11 & 2009-O14 -- C/2009 K2, C/2009 E1, C/2008 Q3, C/2008 Q1, C/2008 FK75, C/2006 S3, C/2005 L3, 219P, 199P, 116P, 22P
474Mt. John Obs. in New Zealand, 3 in MPEC 2009-O06 -- 2005 RQ6, 2003 CR1, 2002 XN14
B49Paus Obs. in Spain, 2 in MPECs 2009-O13 & 2009-O14 -- P/2009 L2, C/2006 W3
322Perth Obs. in Western Australia, 2 in MPECs 2009-O12 & 2009-O14 -- C/2009 K5, C/2007 B2
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 3 in MPECs 2009-O13 & 2009-O14 -- P/2009 L2, C/2008 N1, C/2006 W3
J53Posadas Obs. in Spain, 6 in MPECs 2009-O13 & 2009-O14 -- P/2009 L2, C/2008 Q1, C/2008 N1, C/2008 FK75, C/2006 W3, C/2005 L3
H06RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-O14 -- C/2006 W3
D90RAS Obs. Moorook in South Australia, 1 in MPEC 2009-O14 -- 22P
473Remanzacco Obs. in Italy, 1 in MPEC 2009-O13 -- P/2009 L2
I20Rio Cuarto Obs. in Argentina, 4 in MPEC 2009-O06 -- 2009 ML1, 2009 LX, 2000 XK44, 159402
H36Sandlot Obs. in Kansas, 1 in MPEC 2009-O07 -- 2009 OF
204Schiaparelli Obs. in Italy, 18 in MPECs 2009-O06, 2009-O11, 2009-O13 & 2009-O14 -- 2009 NL, P/2009 L2, C/2009 K2, 2009 JK1, C/2009 E1, C/2008 Q1, C/2008 P1, C/2008 N1, C/2008 FK75, 2008 ER7, C/2006 W3, C/2006 S3, C/2006 Q1, C/2005 L3, 433, 217P, 158P, 65P
E12Siding Spring Survey (SSS) in New South Wales, 3 in MPECs 2009-O08, 2009-O09 & 2009-O10 -- 2009 OG, 2008 WK32, 2008 CJ116
B40Skylive Obs. in Italy, 3 in MPEC 2009-O14 -- C/2006 W3, 217P, 22P
A71Stixendorf Obs. in Austria, 4 in MPECs 2009-O13 & 2009-O14 -- P/2009 L2, C/2006 W3, 65P, 22P
F85Tiki Obs. in Tahiti, 1 in MPEC 2009-O08 -- 2009 OG
H10Tzec Maun Obs. Mayhill in New Mexico, 10 in MPECs 2009-O07, 2009-O11, 2009-O13 & 2009-O14 -- 2009 OF, P/2009 L2, C/2009 K2, C/2006 W3, C/2006 S3, 217P, 169P, 65P, 43P, 22P
D25Tzec Maun Obs. Pingelly in Western Australia, 2 in MPEC 2009-O14 -- C/2006 W3, 22P
G56Walnut Creek Obs. in northern California, 4 in MPECs 2009-O06 & 2009-O07 -- 2009 OF, 2009 NJ, 2009 KL2, 2009 KJ22
J08Zonalunar Obs. in Spain, 4 in MPECs 2009-O06 & 2009-O14 -- 2009 NE, C/2008 P1, C/2006 W3, 162483
A79Zvezdno Obshtestvo Obs. in Bulgaria, 4 in MPECs 2009-O11, 2009-O13 & 2009-O14 -- P/2009 L2, C/2009 K2, 217P, 22P
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 18 July '09

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2346 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 OFJPL Sentry15012039-205333.8e-07-4.31-4.440JPL: "Analysis based on 17 observations spanning 1.0448 days (2009-Jul-17.21281 to 2009-Jul-18.25762)." Diameter approximately 0.200 km. from mean, weighted H=21.1.

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 18 July '09

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

2140Grabbed MPEC 2009-O14 - Observations of Comets - see above
2111Grabbed MPEC 2009-O11 - Comet C/2009 K2 (Catalina) - see above
Grabbed MPEC 2009-O12 - Comet C/2009 K5 (McNaught) - see above
Grabbed MPEC 2009-O13 - Comet P/2009 L2 (Yang-Gao) - see above
Noted that the NEOCP has become active
1501Noted that JPL Sentry has posted 2009 OF as an impact risk - see above
Grabbed MPEC 2009-O06 - Daily Orbit Update - see above
Grabbed MPEC 2009-O07 - 2009 OF - see above
Grabbed MPEC 2009-O08 - 2009 OG - see above
Grabbed MPEC 2009-O09 - 2008 CJ116 - see above
Grabbed MPEC 2009-O10 - 2008 WK32 - see above
Noted that the NEOCP has become empty