PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/14-10:57:30
G10     304.2          53.8                3.1 +/-    0.67       3.7 +/-    0.67  0.050 / 0.070
G14     212.1          14.1                3.6 +/-    2.12       9.1 +/-    2.12  0.060 / 0.080
G15     45.5           22.7                2.4 +/-    2.09       4.9 +/-    2.09  0.190 / 0.380
G20     71.2           23.4                4.9 +/-    1.36      10.0 +/-    1.36  0.150 / 0.430
G21     111.3          69.6                5.6 +/-    1.04       5.9 +/-    1.04  0.030 / 0.030
G24     92.7           28.2                6.1 +/-    1.57      11.1 +/-    1.57  0.030 / 0.040
G27     294.0          36.5                7.2 +/-    2.18      11.1 +/-    2.18  0.080 / 0.130
G32     212.8          37.9                5.0 +/-    1.77       7.5 +/-    1.77  0.070 / 0.130