PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/11-14:27:40
G08     290.3          22.0                5.1 +/-    1.36      10.7 +/-    1.36  0.060 / 0.080
G10     17.7           63.2                4.1 +/-    0.44       4.5 +/-    0.44  0.040 / 0.070
G14     234.8          49.5                8.4 +/-    1.04      10.6 +/-    1.04  0.100 / 0.120
G21     148.2          32.7                7.7 +/-    1.80      12.7 +/-    1.80  0.090 / 0.110
G24     52.2           23.7                5.3 +/-    1.17      10.7 +/-    1.17  0.160 / 0.330
G27     248.0          28.6                4.5 +/-    1.50       8.1 +/-    1.50  0.260 / 0.250
G31     182.5          11.2               -0.2 +/-   18.84      -0.6 +/-   18.84  0.090 / 0.110
G32     259.6          72.1                5.7 +/-    0.35       5.9 +/-    0.35  0.100 / 0.110