Coordinated SPDE rocket, Yohkoh and ground observations of an emerging flux region and a filament

Abstract

During the first flight of the Solar Plasma Diagnostic Experiment (SPDE), May 12, 1992, we obtained UV filtergrams at high resolution (full Sun 0.82″ spatial resolution in the 160 nm continuum, the CIV lines and Lyman α) with the Ultraviolet Filtergraph Camera (UVFC). Closely coordinated observations were obtained with the Soft X-ray Telescope (SXT) of the Yohkoh satellite and from dedicated ground programs in particular at Sacramento Peak, La Palma and Pic-du-Midi observatories. With this unique set of data we cover the solar atmosphere as a whole, from the temperature minimum to the high corona with essential steps in the chromosphere and transition region. After the necessary calibrations of the data set, we present the first results of the multitemperature development of an emerging flux region and of a filament that rapidly changed right during the rocket short lifetime.