Copernicus was the third satellite in the OAO program. It was launched the
21 august of 1972 and operated till 1981. The main instrument was an
ultraviolet telescope with a spectrometer to measure interstellar
absorption lines in the spectra of stellar objects.
However it carried also an X-ray experiment provided by University College of
London/MSSL consisted in 4 co-aligned experiments sensitive in the 1-10 keV
energy range. This database accesses the raw FITS file containing data
obtained from the UCL X-ray Experiment (UCLXE) package on board Copernicus.