Each hard X-ray count rate measurement transferred from HXT to the DP consists of 12-bits. The data are then compressed into 8-bits in the DP according to the following rule:
m = n (n = 0- 15),
m = int(4 x sqrt(n)) (n = 16-4080),
m = 255 (n = 4081-4095),
where int(n) represents the truncated integer value of 
. Count rate data for
HXT telemetered down to the ground (as well as the variable data which is
obtained by reading the HXT reformatted database with YODAT) are the compressed
numbers; they need be decompressed before starting any analyses on HXT.
Decompressed HXT data are obtained by the following command: