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   PR # 42052
   We propose to make an ASCA observation of 4U1822-37 simultaneously
   with XTE in order to determine the 0.5-200 keV spectrum. A previous
   ASCA observation of 4U1822-37 shows a narrow iron K line at 6.4 keV
   and a warm iron absorption edge at 7.2 keV. There is also evidence
   for a Compton broadened iron K line centered on 6 keV, but this
   feature is very dependant on the assumed continuum model, which is
   poorly determined. The simultaneous XTE measurement is crucial to
   determine the overall spectral shape.
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