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Comment: update FOV table


Typically, SoloHI images will have one of 3 typical FOVs defined below. These are used in the observing programs/modes currently defined but could be changed in-flight if necessary.

3968 - 
 detector size FOV split (radial x transverse)FOV (radial x transverse)TM/raw imagecompression ratesDownlinked pixelsTypical cadenceComments
SoloHI Full frame image

5º to 45º x 40º (star)

1960 px * 3968 1960 px

5º-45º x 5º-45º (40ºx40º)

info missing

lossless (factor 2.5) - lossy (up to 50)

SoloHI inner FOV subframe image

192 px * 512 px

5.8º-7.68º x 5º (1.88ºx5º)

13.5º-(incl. 2x2 bin)

24-36 min (inner FOV)
30-72 min (outer FOV) 

(star) split in 2 or 3 readout frames depending on solar distance,
e.g. 5º to 25º x 40º (inner) + 25º to 45º x 40º (outer) at perihelion,
each with different cadence. Details in table below.

SoloHI inner FOV subframe images
(3 images of 1.88ºx5º) 

5.8º to 7.68º x 5º
13.5º to 15.38º x 5º

to 20.38º x 5º


192 px * 512 px (not binned)
96 px * 256 px (binned 2x2)
96 px * 256 px (binned 2x2)

18-36 sec
36-72 sec
1.5-3.0 min

Subframe images typically only used at and near perihelion (up to 0.36AU)
Radial Swath subframe image

3968 px * 512 px

5º-45º x 5º (40ºx5º)(40ºx5º) 5º to 25º x 5º
25º to 45º x 5º 

1960 px * 256 px 
(incl. 2x2 bin)

6 min (inner FOV)
12 min (outer FOV) 

Radial swath images typically only used at and near perihelion (up to 0.36AU)


Observational modes

Main science programs