PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/15-23:57:50
G05     48.0           19.0                8.4 +/-    0.75      18.8 +/-    0.75  0.060 / 0.150
G10     234.4          10.2              -12.0 +/-   40.35     -33.3 +/-   40.35  0.070 / 0.130
G13     79.4           36.4               12.2 +/-    0.91      18.8 +/-    0.91  0.160 / 0.430
G15     131.9          50.0               13.9 +/-    0.65      17.6 +/-    0.65  0.120 / 0.420
G16     315.4          12.2               10.4 +/-    3.11      27.6 +/-    3.11  0.200 / 0.300
G20     242.3          21.4               11.3 +/-    0.94      24.0 +/-    0.94  0.210 / 0.230
G21     309.8          44.4               12.0 +/-    1.07      16.4 +/-    1.07  0.050 / 0.070
G25     200.6          13.0               14.8 +/-    2.87      38.5 +/-    2.87  0.050 / 0.090
G26     288.9          21.1               12.8 +/-    1.99      27.5 +/-    1.99  0.140 / 0.370
G29     153.5          76.9               12.8 +/-    0.61      13.1 +/-    0.61  0.120 / 0.350