PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/21-23:12:40
G01     235.6          25.8                7.7 +/-    1.42      14.8 +/-    1.42  0.090 / 0.130
G03     308.4          57.7                6.6 +/-    1.78       7.6 +/-    1.78  0.090 / 0.110
G14     75.6           31.2                6.3 +/-    1.69      10.8 +/-    1.69  0.150 / 0.130
G16     155.0          32.8                8.7 +/-    1.39      14.3 +/-    1.39  0.230 / 0.170
G22     264.3          75.0                7.4 +/-    1.07       7.6 +/-    1.07  0.040 / 0.030
G23     297.3          27.4                7.5 +/-    2.23      13.9 +/-    2.23  0.030 / 0.030
G26     120.3          49.3                9.2 +/-    0.75      11.7 +/-    0.75  0.090 / 0.110
G31     41.0           45.6                6.2 +/-    0.81       8.3 +/-    0.81  0.080 / 0.220
G32     89.8           13.6                6.9 +/-    1.68      17.7 +/-    1.68  0.050 / 0.040