PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/04-18:27:30
G10     289.4          49.2                9.7 +/-    3.23      12.3 +/-    3.23  0.040 / 0.030
G15     48.1           36.1                8.0 +/-    0.92      12.5 +/-    0.92  0.030 / 0.030
G20     338.4          65.3                9.1 +/-    0.39       9.9 +/-    0.39  0.120 / 0.060
G21     78.6           75.7               10.4 +/-    0.48      10.7 +/-    0.48  0.050 / 0.070
G24     99.7           23.9               12.6 +/-    1.19      25.4 +/-    1.19  0.080 / 0.120
G27     307.7          30.0               10.8 +/-    1.35      18.9 +/-    1.35  0.080 / 0.150
G29     168.1          12.6               12.3 +/-    3.08      32.4 +/-    3.08  0.160 / 0.160
G32     208.3          26.4               11.7 +/-    1.51      22.1 +/-    1.51  0.110 / 0.100