PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/22-18:13:10
G03     193.9          34.2               12.3 +/-    0.43      19.8 +/-    0.43  0.080 / 0.150
G07     274.5          27.5               11.0 +/-    0.97      20.2 +/-    0.97  0.070 / 0.120
G08     155.4          13.1               13.6 +/-    4.34      35.4 +/-    4.34  0.110 / 0.160
G09     318.5          45.6               11.4 +/-    0.96      15.3 +/-    0.96  0.110 / 0.150
G16     52.4           53.6               12.7 +/-    0.77      15.4 +/-    0.77  0.030 / 0.030
G22     180.0          18.7               11.4 +/-    2.85      26.0 +/-    2.85  0.030 / 0.030
G23     19.7           79.9               11.0 +/-    0.80      11.1 +/-    0.80  0.040 / 0.060
G26     43.4           24.3               10.9 +/-    1.81      21.6 +/-    1.81  0.050 / 0.050
G27     116.2          25.0               13.9 +/-    0.96      27.2 +/-    0.96  0.160 / 0.120