| Parameter | Mand | Type | Default | Constraints |
| atthkset | yes | filename | atthk.dat | none |
| output fits file name | ||||
| timestep | yes | real | 1.0 |  0.0s |
| Duration (in sec) of `step' through
attitude information (output file entries are separated by this
duration) | ||||
| Parameter | Mand | Type | Default | Constraints |