PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/22-01:57:40
G01     310.1          30.7                4.9 +/-    1.08       8.4 +/-    1.08  0.040 / 0.040
G10     101.4          43.7                6.0 +/-    0.43       8.3 +/-    0.43  0.040 / 0.050
G11     284.7          29.1                6.6 +/-    0.91      11.8 +/-    0.91  0.100 / 0.140
G14     351.7          68.2                3.8 +/-    0.41       4.1 +/-    0.41  0.090 / 0.130
G18     114.5          17.5                5.8 +/-    1.28      13.5 +/-    1.28  0.040 / 0.020
G22     307.9          22.2                8.2 +/-    3.11      17.0 +/-    3.11  0.040 / 0.020
G25     83.2           15.1                6.5 +/-    0.94      16.1 +/-    0.94  0.120 / 0.150
G31     173.5          58.6                7.6 +/-    0.57       8.7 +/-    0.57  0.080 / 0.140
G32     27.7           57.6                3.8 +/-    1.26       4.4 +/-    1.26  0.040 / 0.040