PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/22-18:12:50
G05     47.9           20.7               10.8 +/-    0.84      23.3 +/-    0.84  0.060 / 0.150
G10     235.1          10.1              -15.7 +/-   28.35     -43.7 +/-   28.35  0.060 / 0.190
G13     80.0           37.4               13.7 +/-    1.05      20.8 +/-    1.05  0.040 / 0.050
G15     125.9          51.0               15.7 +/-    0.91      19.6 +/-    0.91  0.040 / 0.050
G18     244.0          41.5               16.0 +/-    1.63      22.7 +/-    1.63  0.050 / 0.070
G20     24.6           69.0               13.8 +/-    0.51      14.7 +/-    0.51  0.050 / 0.070
G21     313.3          48.0               12.9 +/-    0.95      16.6 +/-    0.95  0.090 / 0.190
G25     199.0          11.3               17.7 +/-    2.38      48.1 +/-    2.38  0.080 / 0.170
G26     294.4          18.7               12.7 +/-    1.57      28.9 +/-    1.57  0.160 / 0.380
G29     150.5          68.1               16.9 +/-    0.76      18.0 +/-    0.76  0.230 / 0.440