PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/08-21:27:50
G03     191.6          25.5                9.5 +/-    2.89      18.4 +/-    2.89  0.090 / 0.160
G07     283.9          33.5                8.4 +/-    0.83      13.7 +/-    0.83  0.090 / 0.140
G08     147.5          22.1               12.5 +/-    1.12      26.2 +/-    1.12  0.180 / 0.330
G09     320.3          55.3                7.8 +/-    1.79       9.3 +/-    1.79  0.190 / 0.390
G16     45.3           46.0                7.9 +/-    0.59      10.5 +/-    0.59  0.060 / 0.090
G22     178.4          11.3               10.6 +/-    1.43      28.7 +/-    1.43  0.060 / 0.090
G23     79.5           82.4                6.7 +/-    0.45       6.8 +/-    0.45  0.040 / 0.070
G26     43.0           16.8                7.2 +/-    0.46      17.2 +/-    0.46  0.030 / 0.070
G27     105.7          30.9               11.0 +/-    0.71      19.0 +/-    0.71  0.020 / 0.040
G30     270.3          12.3                8.4 +/-    3.78      22.3 +/-    3.78  0.030 / 0.030