Description:
The gap
(in time slices if positive and seconds if negative) between full calculations of the output
map bolometer positions. Setting a larger value for this will speed up the map maker but
will introduce larger spatial errors. The default value of -0.5 (i.e. 100 samples at a sample
rate of 200 Hz) seems to produce spatial errors of under 0.1 arc-sec. This level of errors
seems to cause about 1% of bolometers samples to be pushed into a neighouring map
pixel. For tstep=100, the calculation of bolometer positions speeds up by about a factor
of 60. Setting tstep to 1 (or zero) causes all bolometer positions to be calculated in full,
without any approximation. [-0.5]
Type:
real SMURF Usage
MAKEMAP, CALCQU
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