PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/24-14:57:50
G01     69.7           32.8                9.0 +/-    0.96      14.9 +/-    0.96  0.050 / 0.030
G07     138.0          30.2                8.8 +/-    1.64      15.3 +/-    1.64  0.030 / 0.050
G11     52.6           29.5                7.9 +/-    0.96      13.9 +/-    0.96  0.040 / 0.070
G13     273.0          37.5                9.9 +/-    0.60      15.0 +/-    0.60  0.040 / 0.080
G15     304.1          14.1                6.1 +/-    1.53      15.6 +/-    1.53  0.030 / 0.050
G17     235.3          70.2               10.4 +/-    1.12      10.9 +/-    1.12  0.040 / 0.050
G18     48.0           17.5                6.9 +/-    1.07      16.2 +/-    1.07  0.060 / 0.170
G19     224.7          39.8               12.4 +/-    0.98      18.1 +/-    0.98  0.050 / 0.160
G28     21.0           59.1               10.1 +/-    0.33      11.5 +/-    0.33  0.060 / 0.110
G30     136.6          62.0               11.8 +/-    0.39      13.2 +/-    0.39  0.060 / 0.130