PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/04-12:27:20
G10     95.0           46.9                5.8 +/-    0.61       7.6 +/-    0.61  0.030 / 0.040
G11     294.5          25.7                5.3 +/-    1.15      10.3 +/-    1.15  0.030 / 0.050
G14     322.0          70.0                5.1 +/-    0.61       5.4 +/-    0.61  0.110 / 0.220
G18     293.1          46.1                7.5 +/-    4.89       9.9 +/-    4.89  0.120 / 0.260
G22     306.8          22.1                5.5 +/-    2.04      11.5 +/-    2.04  0.110 / 0.180
G25     92.3           13.3                4.2 +/-    2.39      10.8 +/-    2.39  0.090 / 0.120
G31     170.5          55.8                8.2 +/-    0.72       9.7 +/-    0.72  0.090 / 0.160
G32     26.9           58.4                4.7 +/-    1.06       5.4 +/-    1.06  0.120 / 0.200