Table 418. Polar Day-Night Indicator Values for 1985 POLAR FLAG CENTER COLAT JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC COLAT (DEG) 1 1.25 50 50 -18 0 0 0 0 0 26 50 50 50 3 6.25 50 50 -5 0 0 0 0 0 0 9 50 50 5 11.25 50 -20 0 0 0 0 0 0 0 22 50 50 7 16.25 50 -5 0 0 0 0 0 0 0 0 7 50 9 21.25 -15 0 0 0 0 0 0 0 0 0 27 50 64 158.75 0 0 0 26 50 -17 0 0 0 0 0 66 163.75 0 0 0 5 50 50 -8 0 0 0 0 68 168.75 0 0 0 19 50 50 50 -25 0 0 0 0 70 173.75 0 0 0 5 50 50 50 50 -7 0 0 0 72 178.75 0 0 23 50 50 50 50 50 -20 0 0 0
Table 418. Polar Day-Night Indicator Values for 1985 POLAR FLAG COLAT CENTER COLAT (DEG) JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 1 3 5 7 9 64 66 68 70 72 1.25 6.25 11.25 16.25 21.25 158.75 163.75 168.75 173.75 178.75 50 50 50 50 -15 0 0 0 50 50 -20 -5 0 0 0 0 0 0 -18 -5 0 0 0 0 0 0 0 23 0 0 0 0 0 0 0 19 5 50 0 0 0 0 0 26 5 50 50 50 0 0 0 0 0 50 50 50 50 50 0 0 0 0 0 -17 50 50 50 50 0 0 0 0 0 0 -8 -25 50 50 26 0 0 0 0 0 0 0 -7 -20 50 9 22 0 0 0 0 0 0 0 50 50 50 7 27 0 0 0 0 0 50 50 50 50 50 0 0 0 0 0