#define nlcntx 3
#define necntx 3
#define lines_in_edge (nlcntx-1)/2
#define elems_in_edge (necntx-1)/2
#define num_diffs_surr (nlcntx * necntx) - 1
#define num_test_groups 5
#define min(a,b)  ((a) < (b) ? (a) : (b))
#define max_vza 65.49
#define dtr (3.14159 / 180.0)
#define rtd (180.0 / 3.14159)
#define bad_data -999.0
#define badsza_data -327.67
#define conf_clr_thresh 0.99
#define prob_clr_thresh 0.95
#define prob_cld_thresh 0.66