PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/19-17:58:00
G01     306.3          33.7                8.6 +/-    1.43      14.0 +/-    1.43  0.100 / 0.150
G10     106.9          39.9                9.3 +/-    0.86      13.5 +/-    0.86  0.080 / 0.150
G11     282.7          27.6                8.0 +/-    1.73      14.7 +/-    1.73  0.080 / 0.220
G14     357.2          66.7                7.8 +/-    0.59       8.4 +/-    0.59  0.080 / 0.230
G18     118.4          11.6                9.7 +/-    3.29      26.0 +/-    3.29  0.060 / 0.100
G22     310.1          26.9                6.5 +/-    1.32      12.2 +/-    1.32  0.070 / 0.090
G25     81.6           17.0                9.6 +/-    0.88      22.7 +/-    0.88  0.020 / 0.040
G31     166.5          65.9               10.5 +/-    0.83      11.4 +/-    0.83  0.040 / 0.040
G32     37.2           51.7                9.6 +/-    0.82      11.9 +/-    0.82  0.030 / 0.060