PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/03-11:27:40
G08     279.4          19.7                5.8 +/-    1.80      12.8 +/-    1.80  0.040 / 0.070
G10     46.6           61.1                5.5 +/-    0.36       6.2 +/-    0.36  0.050 / 0.070
G11     317.0          10.6               -5.6 +/-   12.61     -15.4 +/-   12.61  0.030 / 0.040
G14     250.5          58.4                8.4 +/-    0.58       9.7 +/-    0.58  0.030 / 0.030
G18     315.6          24.6                3.4 +/-    2.45       6.7 +/-    2.45  0.140 / 0.620
G21     153.0          21.7                6.7 +/-    1.48      14.1 +/-    1.48  0.140 / 0.570
G24     43.1           15.3                3.3 +/-    0.82       8.1 +/-    0.82  0.060 / 0.130
G27     236.7          20.4                7.9 +/-    2.50      17.2 +/-    2.50  0.080 / 0.110
G31     178.6          24.4                6.5 +/-    1.09      12.9 +/-    1.09  0.090 / 0.190
G32     315.9          76.5                7.1 +/-    0.79       7.3 +/-    0.79  0.110 / 0.170