PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/07-04:12:30
G08     296.7          22.5                8.3 +/-    1.91      17.1 +/-    1.91  0.060 / 0.120
G10     1.2            62.8                7.2 +/-    0.64       8.0 +/-    0.64  0.070 / 0.110
G14     227.3          41.0               11.4 +/-    1.57      16.3 +/-    1.57  0.050 / 0.110
G20     47.8           60.3               12.1 +/-    0.80      13.8 +/-    0.80  0.060 / 0.090
G21     145.2          44.1                9.8 +/-    1.19      13.3 +/-    1.19  0.070 / 0.110
G24     57.9           26.1                7.4 +/-    0.53      14.1 +/-    0.53  0.060 / 0.090
G27     257.5          33.0                8.9 +/-    1.28      14.7 +/-    1.28  0.050 / 0.100
G32     242.0          67.4                9.0 +/-    0.68       9.7 +/-    0.68  0.050 / 0.090