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Qui sommes nous

About us

Aboudarham Jean : scientific director (Meudon)
Grimaud Frank : computer technician (Tarbes)
Lafon Martine: technical director (Tarbes)
Maeght Patrick : assistant ingineer (Tarbes)
Meunier Nadège : scientific director (Tarbes)
Micheneau Paulette : ingineer (Meudon)
Rénié Christian: technical director (Meudon)
Roudier Thierry : associate astronomer (Tarbes)

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Origin

BASS 2000 has been initiated by the Institut National des Sciences de l'Univers together with the Midi-Pyrénées Observatory, the research group "solar and stellar magnetodynamic", the CNRS laboratory 5572, the Midi-Pyrénées Région, the Bagnères de Bigorre City, and the CNES (Centre National des Etudes Spatiales) in Toulouse. It is currently funded by the national program "Sun-Earth relationship Program", the Midi-Pyrénées Observatory and the Astrophysic Laboratory of Toulouse.

BASS 2000 is a national data base dedicated to ground based solar observations obtained with instruments such as THEMIS (Canaries), the spectrohelioph of the Meudon Observatory, the Radioheliograph in Nançay, Solar instruments at the Pic du Midi Observatory, as well as simulation or magnetic field extrapolations concerning solar physics. This data base is complementary to the solar database MEDOC (SOHO and TRACE data) at the Institut d'Astrophysique Spatiale and to the interplanetary and plasma data base at the CNES ( CDDP ).

Objectives

Our main purpose is to archive and diffuse these solar ground based data as well as data reduction tools associated to these data. Our main objectives are :

• to build a new tool in order to make the most of these data
• to favour a better standardization of solar data
• to allow a long term safe-keeping of these data
• to develop an educatioal tool in solar physics.

The catalogues

BASS 2000 is constituted of a long term archive in Tarbes (Midi-Pyrénées Observatory, France) under the responsibility of Nadège Meunier and of a solar survey archive located in Meudon (Paris-Meudon Observatory) under the responsibility of Jean Aboudarham :

• The long term archive in Tarbes provides an on-line catalog and sends the requested data on Exabyte or DAT tapes, DLTs or via the network depending on the volume. The data base is managed by an Oracle SGBD whose SQL is interfaced with php3 for the interrogation and data request on the Web. Data are archived in FITS format (as well as mpeg for movies) whose keywords have been defined with THEMIS and SOHO. The site also provides an user help (THEMIS page, line informations,…) as well as a pedagogic tool (gallery, lessons, FAQ, etc.)

• The solar survey archive in Meudon , dedicated to Full Disk Observations, provides on-line daily data from various instruments (H-alpha coronagraph of the Pic-du-Midi Observatory as a ground-based support to SOHO, Meudon spectroheliograph, Nançay radioheliograph). Many facilities such as useful links, tools, and informations have been implemented.

The full list of available data can be found here.

The two archives are currently being upgraded. The long term archive will provide new keywords for a better data request and data processing codes as well as processed data, while the solar survey as been completely remodelled recently. All suggestions about our sites are welcome.