PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/30-12:12:40
G01     320.4          13.6                2.1 +/-    1.23       5.5 +/-    1.23  0.040 / 0.060
G08     266.6          15.4                6.0 +/-    2.83      14.9 +/-    2.83  0.040 / 0.060
G10     71.2           56.1                3.5 +/-    0.87       4.1 +/-    0.87  0.050 / 0.130
G11     309.1          18.8                4.0 +/-    1.54       9.0 +/-    1.54  0.060 / 0.120
G14     276.1          66.8                3.3 +/-    0.64       3.6 +/-    0.64  0.120 / 0.260
G18     309.3          35.5                3.7 +/-    1.00       5.8 +/-    1.00  0.130 / 0.420
G27     227.0          11.8                3.0 +/-    3.03       8.1 +/-    3.03  0.030 / 0.030
G31     175.9          37.9                4.8 +/-    1.01       7.2 +/-    1.01  0.030 / 0.030
G32     0.1            70.2                3.0 +/-    0.68       3.2 +/-    0.68  0.130 / 0.310