PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-14:42:40
G07     317.6          51.5               11.4 +/-    1.63      14.1 +/-    1.63  0.040 / 0.050
G08     118.5          47.1               13.2 +/-    1.12      17.3 +/-    1.12  0.050 / 0.060
G09     233.1          82.8               10.7 +/-    0.80      10.8 +/-    0.80  0.030 / 0.050
G16     43.9           14.2                8.4 +/-    1.51      21.2 +/-    1.51  0.040 / 0.050
G23     149.7          49.9               12.3 +/-    0.75      15.6 +/-    0.75  0.030 / 0.070
G27     66.9           36.0                9.8 +/-    0.52      15.3 +/-    0.52  0.030 / 0.060
G28     229.6          20.7               14.0 +/-    1.98      30.2 +/-    1.98  0.060 / 0.150
G30     293.4          28.2                9.1 +/-    1.00      16.6 +/-    1.00  0.060 / 0.140