PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/07-21:27:40
G03     192.3          27.3               12.4 +/-    2.34      23.0 +/-    2.34  0.240 / 0.220
G07     282.2          32.5                9.5 +/-    2.51      15.8 +/-    2.51  0.270 / 0.350
G08     148.6          20.6               11.4 +/-    2.46      24.7 +/-    2.46  0.120 / 0.240
G09     320.1          53.4               10.0 +/-    0.76      12.2 +/-    0.76  0.120 / 0.180
G16     46.4           47.8                9.0 +/-    0.83      11.7 +/-    0.83  0.040 / 0.050
G22     179.0          13.0               12.8 +/-    3.56      33.3 +/-    3.56  0.040 / 0.060
G23     63.5           82.8                9.8 +/-    1.62       9.9 +/-    1.62  0.070 / 0.090
G26     43.0           18.4                7.8 +/-    3.58      17.8 +/-    3.58  0.070 / 0.090
G27     107.7          29.9               12.3 +/-    1.04      21.6 +/-    1.04  0.020 / 0.020
G30     268.9          11.1               -8.7 +/-   31.18     -23.7 +/-   31.18  0.020 / 0.030