PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/08-04:12:50
G01     320.2          13.5                5.6 +/-    2.28      14.6 +/-    2.28  0.110 / 0.250
G08     260.6          15.9                8.9 +/-    3.04      21.8 +/-    3.04  0.130 / 0.260
G10     69.3           57.0                4.7 +/-    0.82       5.5 +/-    0.82  0.040 / 0.060
G11     306.1          22.3                4.6 +/-    1.24       9.6 +/-    1.24  0.040 / 0.050
G14     284.4          70.1                6.7 +/-    0.54       7.1 +/-    0.54  0.150 / 0.550
G18     96.0           34.2                5.5 +/-    1.08       8.9 +/-    1.08  0.170 / 0.430
G21     154.9          10.2                4.9 +/-    1.59      13.6 +/-    1.59  0.030 / 0.040
G27     226.6          11.9                7.9 +/-    2.76      21.0 +/-    2.76  0.030 / 0.040
G31     177.5          35.6                8.6 +/-    1.66      13.5 +/-    1.66  0.110 / 0.330
G32     350.7          71.7                5.4 +/-    0.60       5.7 +/-    0.60  0.140 / 0.310