PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/30-00:42:40
G10     248.4          23.9               12.5 +/-    1.68      25.0 +/-    1.68  0.040 / 0.060
G13     57.0           32.6                8.3 +/-    0.73      13.8 +/-    0.73  0.040 / 0.070
G15     96.3           58.6               11.3 +/-    0.43      13.0 +/-    0.43  0.070 / 0.170
G16     299.7          14.7                7.0 +/-    2.73      17.4 +/-    2.73  0.090 / 0.130
G18     264.2          53.1               10.4 +/-    0.78      12.6 +/-    0.78  0.140 / 0.290
G20     42.0           49.4                8.4 +/-    0.56      10.7 +/-    0.56  0.120 / 0.310
G21     330.1          58.4                8.2 +/-    0.45       9.4 +/-    0.45  0.060 / 0.060
G26     271.9          16.4               10.8 +/-    1.80      26.0 +/-    1.80  0.040 / 0.060
G29     163.4          50.7               11.0 +/-    0.72      13.7 +/-    0.72  0.050 / 0.070