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PREVIOUS EXISTING CATALOGS
1 - LASCO CME Catalog (USA) : http://cdaw.gsfc.nasa.gov/CME_list/Visual detection and tracking of CMEs on
LASCO-C2/C3 images, the catalog is assembled by human operators.
Returned parameters :Time of appearance, Position angle, Angular
extent, Velocity, Acceleration.
2 - CACTus Catalog (Belgium) : http://sidc.oma.be/cactus/Fast automated detection based on objective
detection criteria.Returned parameters :
Time of appearance, Duration of liftoff, Position angle, Angular extent, Velocity.
A NEW APPROACHUse of the Synoptic Maps (instead of images):
Global vision in time. Specific characterization of CMEs is possible.Interaction of CMEs with streamers.
An automatic method :Detection based on objective criteria.Fast detection process.
THE LASCO ARTEMIS CME Catalog Links to the Virtual Observatory using SITools
F. Ernandes, M. Burtin, T. Fenouillet, L. Fiore, R. Savalle, C. Surace Laboratoire d’Astrophysique de Marseille, France
Summary
The LASCO-C2 coronagraph aboard the SOHO solar observatory has
been providing a continuous flow of coronal images for the past ten
years. Synoptic maps have been built from these images and offer a
view of the temporal evolution of the solar corona and Coronal Mass
Ejections (CMEs).
We present the LASCO-ARTEMIS (Automatic Recognition of Transient
Events and Marseille Inventory from Synoptic maps) data base. Data
have been released using a new automated method of detection of
CMEs based on an adaptive filtering and segmentation. time of
appearance, position angle, angular extent and average velocity are
released via the SITools environment and their Virtual Observatory
SVA (Services à Valeur Ajoutée ).
For each CME 5 parameters are returned :
Time of appearancePosition angleAngular extent
IntensityAverage velocity
Filtering
Thresholding
Segmentation
Merging with high-levelknowledge
METHODDetection maskSynoptic Map
Résumé
Le coronographe LASCO-C2 installé sur le satellite SOHO fournit
depuis plus de dix ans un flow continu d’images coronales Des cartes
synoptiques ont été construites et offrent une vue de l’évolution
temporemme à la fois de la courronne solaire mais aussi des éjections
de masses solaires (CMEs)
Dans ce poster nous présentons la base de données LASCO -
ARTEMIS (Automatic Recognition of Transient Events and Marseille
Inventory from Synoptic maps). Les données ont été traitées en
utilisant une nouvelle méthode automatique de détection des CMEs,
basée sur un filtrage adaptatif et une segmentation. Date, heure, angle
de positionnement, extension angulaire sont les données disponibles
sous forme de VOTable en utilisant l’environnement SITools et
l’utilisation des Services à Valeur Ajoutée (SVA)
SITools:
Towards a VO - compliant portal for LAM archives
Developed by CNES in partnership with a computing and consulting company, SiTools (Système d’Information, de Préservation et d’Accès aux Données) provides a customizable portal, a powerful query builder and a set of J2EE-compliant tools.
This modular system, which features a virtual Web Service bus, will ease the development of middleware layers enabling interconnection of VO value-added services (SVA) with existing astronomical datasets.
The SVAs modules Will allow connection throughout the Virtual Observatory and data extraction for Web Services analysis.
SiTools Architecture at LAM
Description of services
Web ServicesConnection bus
between the various services
Internet browser
Web Server
SiTools PortalJ2EE Platform
StrutsJSP + Taglib
Database Server
Repository
SANWebDAV User
Space
Application Server
AVS: Added-Value Services
Cluster Front-End
Batch Processing - RIO
Storage ServerOff-line Archives
Synonyms
Database ServerCatalog of archives
GALEX LASCO
Cutout,SIA,SSA
Cluster
VO User
Internet browser
Off-line archives
Embedded DBCoreServices
Value-AddedDistributedServices
?xml version="1.0" encoding="UTF-8"?><VOTABLE xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://www.ivoa.nett/xml/VOTable/VOTable/v1.1" version="1.1"><RESOURCE name="CME" type="results"><TABLE name="mySelection"><FIELD ID="col1" name="num_cme" datatype="string » ucd="meta.id"/><FIELD ID="col2" name="date_cme" datatype="date" ucd="time.epoch"/><FIELD ID="col3" name="pa" datatype="int" ucd="pos.posAng;meta.main"/><FIELD ID="col4" name="aw" datatype="int" ucd="phys.angSize"/><FIELD ID="col5" name="speed" datatype="int" ucd="phys.veloc;stat.fit;meta.modelled"/><FIELD ID="col6" name="corrspeed_med" datatype="int" ucd="phys.veloc;em.wl.central;stat.median"/><FIELD ID="col7" name="carr_rot" datatype="int" ucd="phys"/><FIELD ID="col8" name="speed_gr" datatype="string" ucd="phys.acceleration"/><FIELD ID="col9" name="corrspeed_mean" datatype="int" ucd="phys.veloc;stat.mean"/><DATA><TABLEDATA><TR><TD>CR1996_008</TD><TD>2002-11-04</TD><TD>45</TD><TD>8</TD><TD>230</TD><TD>396</TD><TD>1996</TD><TD></TD><TD>388</TD></TR><TR><TD>CR1996_005</TD><TD>2002-11-03</TD> <TD>141</TD><TD>59</TD><TD>560</TD><TD>604</TD><TD>1996</TD><TD></TD><TD>1170</TD></TR><TR><TD>CR1996_007</TD><TD>2002-11-03</TD><TD>258</TD><TD>10</TD><TD>0</TD><TD>0</TD><TD>1996</TD><TD></TD><TD>0</TD></TR><TR><TD>CR1996_009</TD><TD>2002-11-04</TD><TD>51</TD><TD>9</TD><TD>90</TD><TD>342</TD><TD>1996</TD><TD></TD><TD>352</TD></TR><TR><TD>CR1996_004</TD><TD>2002-11-03</TD><TD>170</TD><TD>14</TD><TD>0</TD><TD>0</TD><TD>1996</TD><TD></TD><TD>0</TD></TR><TR><TD>CR1996_006</TD><TD>2002-11-03</TD><TD>52</TD><TD>46</TD><TD>0</TD><TD>0</TD><TD>1996</TD><TD></TD><TD>0</TD></TR></TABLEDATA></DATA></TABLE></RESOURCE></VOTABLE>
CME
The LASCO ARTEMIS CME data base has been chosen to be part of the experimentation of using SITools as a VO compliant portal to the data bases of the LAM. The accessibility using SVA modules have been checked out and the new CME data will be soon accessible as public data on the LAM site.
Modifications are underway to make the LASCO ARTEMIS able to give added value data with direct acces to CME Characteristics
-Publication list•LASCO: Brueckner, G. E. et al, 1995, Solar Physics, v. 162, p. 357-402•Boursier, Y.; Llebaria, A.; Goudail, F.; Lamy, P.; Robelus, S.Automatic Detection of Coronal Mass Ejections on LASCO-C2 Synoptic Maps.2005, Proc. SPIE, Vol. 5901 - 02- •Yannick Boursier; Philippe Lamy; Antoine Llebaria; Sébastien Robelus;The Marseille-Artemis Catalog of LASCO CMEs; 2006, Proc. SOHO 17, in press•Levoir T., Harvey C.C., Thieman J.R., Bell E.V., Huc C, “SPASE prototype : an example application for the interoperability in Space Physics”,American Geophysical Union (AGU) Fall Meeting, San Francisco (USA), 8-12 December 2003
- Time of appearance - Position angle- Angular extent- Velocity- Acceleration
Using the SVA modules interfaces, the output data could be available as VOTable formated data
http://vds.cnes.fr/sitools/tech.htm
LASCO - ARTEMIShttp://lamwws.oamp.fr/SI/lascocme
The interface gives access to data of the processed images and characteristics of the CMEs :
Département d’Informatique Scientifique