PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/11-15:28:00
G03     189.5          19.2               12.2 +/-    3.86      27.4 +/-    3.86  0.070 / 0.140
G07     291.0          37.6                9.5 +/-    1.64      14.4 +/-    1.64  0.070 / 0.150
G08     143.5          27.9               13.2 +/-    0.81      24.1 +/-    0.81  0.030 / 0.040
G09     320.2          63.7                9.1 +/-    0.94      10.0 +/-    0.94  0.030 / 0.050
G16     42.4           36.2                8.2 +/-    1.37      12.7 +/-    1.37  0.060 / 0.120
G23     123.0          73.4               11.7 +/-    0.60      12.2 +/-    0.60  0.050 / 0.110
G27     97.8           34.2               10.7 +/-    1.48      17.2 +/-    1.48  0.060 / 0.080
G30     274.9          14.0               11.0 +/-    1.51      28.0 +/-    1.51  0.040 / 0.070