Purpose: Scan the solar disk in order to determine spectral radiance integrated over the disk. Spectral features to be observed include Ly-alpha and OVI 1032/1037 Å.
Description: Duration 0.5 hours. Scan solar disk from -1 to +1
R
using Coarse Pointing motion. Telescope mirror/occulter in fixed
position (e.g. 1.5 R
). Narrowest Ly-alpha entrance slit in place.
Neutral density filter in place for Ly
.