PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/04-14:57:40
G03     308.0          60.1                8.7 +/-    0.75       9.9 +/-    0.75  0.070 / 0.090
G14     71.7           35.5                9.5 +/-    0.96      14.9 +/-    0.96  0.060 / 0.100
G16     155.7          31.4               11.7 +/-    1.42      20.0 +/-    1.42  0.070 / 0.130
G18     212.8          17.6               10.2 +/-    2.29      23.8 +/-    2.29  0.080 / 0.150
G22     254.6          77.4               10.8 +/-    1.00      11.0 +/-    1.00  0.040 / 0.040
G23     298.4          30.7                9.7 +/-    0.78      16.7 +/-    0.78  0.030 / 0.040
G26     118.9          48.2               11.7 +/-    0.54      15.1 +/-    0.54  0.090 / 0.100
G31     41.5           43.5                7.8 +/-    1.49      10.8 +/-    1.49  0.090 / 0.130
G32     88.8           13.6                9.4 +/-    5.17      24.1 +/-    5.17  0.040 / 0.050