PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/31-23:42:40
G10     282.9          45.7               12.8 +/-    1.16      17.1 +/-    1.16  0.070 / 0.090
G15     49.3           38.2               12.5 +/-    0.71      18.7 +/-    0.71  0.070 / 0.110
G18     332.6          66.8               12.5 +/-    0.46      13.4 +/-    0.46  0.050 / 0.040
G20     64.6           24.0               11.2 +/-    1.04      22.4 +/-    1.04  0.040 / 0.040
G21     57.5           77.0               12.5 +/-    0.59      12.8 +/-    0.59  0.040 / 0.070
G24     109.2          21.8               15.8 +/-    1.08      33.2 +/-    1.08  0.050 / 0.070
G27     308.6          30.1               12.4 +/-    1.58      21.6 +/-    1.58  0.040 / 0.050
G29     167.3          14.1               16.4 +/-    1.39      41.6 +/-    1.39  0.040 / 0.050
G32     207.8          20.4               15.9 +/-    0.94      34.7 +/-    0.94  0.110 / 0.270