PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/02-11:58:10
G08     267.4          15.7                5.6 +/-    2.49      13.8 +/-    2.49  0.040 / 0.050
G10     69.8           56.5                5.3 +/-    0.47       6.2 +/-    0.47  0.030 / 0.050
G11     309.6          18.4                3.9 +/-    1.78       8.9 +/-    1.78  0.130 / 0.150
G14     274.0          66.3                6.7 +/-    0.46       7.3 +/-    0.46  0.330 / 0.190
G18     309.9          34.9                3.7 +/-    1.63       5.9 +/-    1.63  0.340 / 0.590
G21     155.1          10.0                5.5 +/-    3.07      15.5 +/-    3.07  0.200 / 0.500
G27     227.5          12.3                3.6 +/-    3.34       9.6 +/-    3.34  0.120 / 0.180
G31     176.0          37.1                6.8 +/-    0.86      10.5 +/-    0.86  0.100 / 0.200
G32     358.3          70.7                5.2 +/-    0.64       5.5 +/-    0.64  0.130 / 0.380