PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/07-18:58:10
G01     233.3          23.4                9.8 +/-    1.27      20.0 +/-    1.27  0.100 / 0.150
G03     301.8          63.6                8.4 +/-    0.51       9.2 +/-    0.51  0.110 / 0.180
G14     78.0           30.7                8.8 +/-    0.94      15.2 +/-    0.94  0.030 / 0.040
G16     154.5          35.6               11.0 +/-    0.91      17.2 +/-    0.91  0.040 / 0.040
G22     243.2          75.7               10.1 +/-    0.49      10.4 +/-    0.49  0.050 / 0.080
G23     301.1          32.0                8.9 +/-    0.87      14.9 +/-    0.87  0.040 / 0.070
G26     113.0          51.2                9.9 +/-    0.58      12.3 +/-    0.58  0.080 / 0.210
G31     42.3           40.0                6.6 +/-    1.17       9.6 +/-    1.17  0.120 / 0.300
G32     92.7           11.1                9.5 +/-    1.79      26.0 +/-    1.79  0.040 / 0.050