PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/29-17:43:10
G01     43.1           19.1                8.5 +/-    0.56      19.2 +/-    0.56  0.180 / 0.340
G06     174.4          36.5               10.6 +/-    1.65      16.3 +/-    1.65  0.150 / 0.240
G13     240.8          24.4                9.2 +/-    2.57      18.2 +/-    2.57  0.060 / 0.100
G15     276.1          13.1               11.0 +/-    1.71      28.6 +/-    1.71  0.060 / 0.120
G17     349.6          73.6               10.0 +/-    0.66      10.4 +/-    0.66  0.040 / 0.050
G19     263.6          64.8                8.9 +/-    1.15       9.7 +/-    1.15  0.050 / 0.050
G24     317.3          17.1               10.2 +/-    2.43      24.0 +/-    2.43  0.070 / 0.140
G28     66.7           48.6                9.8 +/-    0.42      12.6 +/-    0.42  0.080 / 0.160
G30     153.7          31.6               12.4 +/-    1.03      21.0 +/-    1.03  0.070 / 0.240