As a backup possibility for the case, if the TRACE is not
available, the EIT imaging measurements in the limited FOV with the
highest possible frame cadence are proposed. The EIT is worser (backup)
alternative of the TRACE measurements due to the decrease of the frame
cadence, decrease of the practical spatial resolution and also due to
loosing of the Ly 
bandpass.
FOV (HxV) : 2x4 32x32 sub-arrays (166.4'' x 332.8'')
Bandpasses : Fe IX-X 171 Å (1.3x10
K),
He II 304 Å (8.0x10
K)
Compression : square root (roughly 1:2) and ADCT (1:5), frame volume decrease from 112 kb to
roughly 12kb
Telemetry : < 20 sec
Exposures : 171 Å : 12 sec, 304 Å : 52 sec
Dwell time : 8 sec (readout, CCD clearing)
Cadence : 171 Å : 20 sec, 304 Å : 9 min
Order : After each 27 Fe IX-X 171 Å frames acquired in a sequence (9 min) one He II 304 Å frame
should be inserted with the resulting cycle time of 10 minutes
Total time : up to app. 7 hours