Filtergraph calibration for the Polarimetric and Heliosismic Imager

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Meteospace, a New Instrument for Solar Survey at the Calern Observatory

International audienceHigh cadence observations of solar activity (active regions, flares, filaments) in the Hα line were performed at Meudon and Haute Provence Observatories from 1956 to 2004. More than 7 million images were recorded, mainly on 35 mm films. After a review of the scientific interest of solar surveys at high temporal resolution and the historical background, we describe the new instrument which will operate automatically in 2020 at the Calern station of the Côte d’Azur observatory (1270 m). It will replace the former heliographs with improved cadence, seeing and time coverage. We summarize the capabilities of the optical design and present new scientific perspectives in terms of flare onset and Moreton wave detection

VizieR Online Data Catalog: Mutual phenomena of Galilean satellites PHEMU03 (Arlot+, 2009)

VizieR Online Data Catalog. vol. 349.In 2003, the Sun and the Earth passed through both the equatorial plane of Jupiter and therefore the orbital planes of its main satellites. During this period, mutual eclipses and occultations were observed and we present the data collected. Light curves of mutual eclipses and occultations were recorded by the observers of the international campaign PHEMU03 organized by the Institut de Mecanique Celeste, Paris, France We completed 377 observations of 118 mutual events from 42 sites and the corresponding data are presented in this paper. For each observation, information about the telescope, receptor, site, and observational conditions are provided. This paper gathers all data and indicates a first estimate of its precision. This catalogue of these rare events should constitute an improved basis for accurate astrometric data useful in the development of dynamical models. (5 data files)

VizieR Online Data Catalog: Mutual phenomena of Galilean satellites PHEMU03 (Arlot+, 2009)

VizieR Online Data Catalog. vol. 349.In 2003, the Sun and the Earth passed through both the equatorial plane of Jupiter and therefore the orbital planes of its main satellites. During this period, mutual eclipses and occultations were observed and we present the data collected. Light curves of mutual eclipses and occultations were recorded by the observers of the international campaign PHEMU03 organized by the Institut de Mecanique Celeste, Paris, France We completed 377 observations of 118 mutual events from 42 sites and the corresponding data are presented in this paper. For each observation, information about the telescope, receptor, site, and observational conditions are provided. This paper gathers all data and indicates a first estimate of its precision. This catalogue of these rare events should constitute an improved basis for accurate astrometric data useful in the development of dynamical models. (5 data files)

The PHEMU03 catalogue of observations of the mutual phenomena of the Galilean satellites of Jupiter

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