Purpose: Perform measurement of coronal proton temperature, outflow velocity, and electron density. The primary observable quantities are resonantly scattered Ly-alpha profile, OVI intensity, visible polarized radiance.
Description: Duration 27 minutes.
There will be several versions with
different dwell times, each one optimized for a particular target
(streamers, quiet corona, coronal holes).
Using the mirror mechanism, scan through the following radial positions in
the corona: 1.5, 1.8, 2.2, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0 R
(TBC).
At each mirror position, measure resonantly scattered Ly-alpha profile.
Dwell times increase with height in the corona.
Intensities of OVI 1032/1037 Å 
are also measured.
Polarized visible radiance is measured at one position along the
spectrograph entrance slit for each mirror position.