| Description: The fast_hk_pickup_rate element provides the rate at which fast housekeeping is collected. Fast housekeeping is a partial gathering of the available engineering data values, or items, that pertain to and describe the condition of the instrument itself. Note: For Cassini, this value (n) is stored in the band suffix, or backplane, of the spectral cube for the infrared channel. If (n) is set to zero, then housekeeping values will be collected at every pixel (i.e., every pixel of the backplane will have a value). If (n) is set from 1 to swath_length, then housekeeping values will be collected every nth line (i.e., only the first pixel of every nth line of the backplane will have a value). If no infrared housekeeping items were selected for the cube, then this keyword will not be present. |