PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/16-17:13:10
G03     235.4          70.0               16.4 +/-    0.73      17.4 +/-    0.73  0.120 / 0.220
G09     300.8          14.4                8.7 +/-    2.08      21.8 +/-    2.08  0.100 / 0.200
G14     95.9           18.9               10.5 +/-    1.36      23.7 +/-    1.36  0.040 / 0.050
G16     132.7          56.2               12.6 +/-    0.33      14.8 +/-    0.33  0.040 / 0.040
G22     193.8          57.7               10.9 +/-    0.57      12.6 +/-    0.57  0.030 / 0.050
G23     318.2          48.3                9.2 +/-    0.53      11.8 +/-    0.53  0.030 / 0.040
G31     50.7           21.4                8.8 +/-    2.76      18.8 +/-    2.76  0.040 / 0.060