PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/27-17:12:30
G01     310.8          30.0                7.2 +/-    1.59      12.7 +/-    1.59  0.060 / 0.170
G10     100.8          43.8                9.8 +/-    0.41      13.4 +/-    0.41  0.090 / 0.140
G11     289.2          26.9                6.8 +/-    1.13      12.7 +/-    1.13  0.040 / 0.040
G14     342.9          69.0                7.7 +/-    0.84       8.2 +/-    0.84  0.040 / 0.070
G22     308.0          22.7                4.8 +/-    1.82      10.0 +/-    1.82  0.040 / 0.040
G25     87.2           15.2                8.9 +/-    0.86      22.0 +/-    0.86  0.030 / 0.040
G31     170.3          59.9               11.3 +/-    0.96      12.8 +/-    0.96  0.060 / 0.140
G32     31.2           55.6                7.0 +/-    0.46       8.3 +/-    0.46  0.050 / 0.150