Water vapor total column measurements at Observatoire de Haute Provence (5° 42' E , +43° 55' N, http://www.obs-hp.fr), south of France, were obtained using observations of astronomical objects made between July 1994 and June 2005 on the 193-cm telescope with Elodie high-resolution spectrometer (http://atlas.obs-hp.fr/elodie/). Spectra of stars, nebulae, and other astronomical objects were taken on a daily basis for 10 years by astronomers. More than 20 000 spectra are today available on-line for intensive use of the Elodie archive. Water vapour absorption lines in the visible part of the spectra are often a problem for astronomers as they mask it for analysis of the other parts of the spectra.
TELLODIE is a web service developed in the frame of the Virtual Observatory. TELLODIE is :
- 1- A time serie of telluric line intensities and broadenings (presently, water vapour absorption lines at 592 nm, to be expended in near future) measured on Elodie spectra, that can be explore on individual spectra basis;
- 2- A time serie of water vapor total column amounts over OHP station measured from previous time serie, to be explored on individual spectra, temporal averages (daily, weekly, monthly, and seasonal) basis;
- 3- An online workflow for extension or modification of the input parameters of the spectral analysis (to be added soon)
TELLODIE is regularly updated and provides VOtable and .txt as output formats.