PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/24-17:42:50
G01     235.8          25.4               11.9 +/-    1.62      22.9 +/-    1.62  0.030 / 0.030
G03     305.2          62.2               11.3 +/-    0.87      12.7 +/-    0.87  0.030 / 0.040
G14     74.9           32.9                8.7 +/-    1.50      14.3 +/-    1.50  0.080 / 0.130
G16     155.5          33.1               14.0 +/-    1.96      23.0 +/-    1.96  0.090 / 0.120
G22     252.9          76.4               11.7 +/-    0.61      12.0 +/-    0.61  0.050 / 0.050
G23     299.3          30.6                9.9 +/-    1.72      17.0 +/-    1.72  0.070 / 0.050
G26     116.7          49.6               11.9 +/-    0.53      15.1 +/-    0.53  0.090 / 0.080
G31     41.7           42.1                8.2 +/-    1.06      11.5 +/-    1.06  0.070 / 0.100
G32     90.6           12.6                9.2 +/-    1.43      24.3 +/-    1.43  0.030 / 0.030