PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/16-19:13:10
G01     84.5           32.9               12.6 +/-    0.71      20.9 +/-    0.71  0.110 / 0.350
G07     129.7          41.7               13.7 +/-    0.89      19.3 +/-    0.89  0.090 / 0.260
G11     64.2           38.2               10.8 +/-    0.73      16.2 +/-    0.73  0.030 / 0.030
G13     289.0          37.1               10.7 +/-    1.56      16.3 +/-    1.56  0.030 / 0.040
G15     312.3          11.7                9.0 +/-    1.70      24.1 +/-    1.70  0.050 / 0.080
G17     219.0          55.0               14.0 +/-    1.29      16.7 +/-    1.29  0.050 / 0.110
G18     59.3           22.9               10.0 +/-    0.96      20.6 +/-    0.96  0.110 / 0.140
G19     217.1          30.1               14.6 +/-    1.84      25.6 +/-    1.84  0.060 / 0.140
G28     359.1          61.3               10.7 +/-    1.21      12.0 +/-    1.21  0.040 / 0.060
G30     118.4          71.4               12.6 +/-    0.69      13.2 +/-    0.69  0.050 / 0.070