PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/15-00:28:10
G02     207.1          48.0               13.3 +/-    0.37      17.2 +/-    0.37  0.090 / 0.050
G06     124.0          78.8               12.4 +/-    0.56      12.6 +/-    0.56  0.110 / 0.040
G12     313.3          24.1                9.3 +/-    1.17      18.6 +/-    1.17  0.060 / 0.030
G17     42.7           44.8               11.9 +/-    0.80      16.0 +/-    0.80  0.070 / 0.030
G19     20.8           58.4               11.4 +/-    0.87      13.1 +/-    0.87  0.030 / 0.010
G24     283.9          41.9                3.4 +/-    1.40       4.9 +/-    1.40  0.030 / 0.010
G28     113.1          22.9               14.0 +/-    2.47      28.7 +/-    2.47  0.110 / 0.170