PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/12-11:42:50
G08     281.0          22.9                5.3 +/-    1.53      10.8 +/-    1.53  0.080 / 0.160
G10     32.9           62.0                4.5 +/-    1.81       5.1 +/-    1.81  0.070 / 0.140
G14     241.2          56.6                6.4 +/-    3.41       7.5 +/-    3.41  0.030 / 0.020
G18     316.8          21.8                4.0 +/-    1.74       8.5 +/-    1.74  0.030 / 0.020
G20     79.6           45.8                6.1 +/-    1.07       8.2 +/-    1.07  0.080 / 0.090
G21     150.4          26.4                4.5 +/-    3.92       8.5 +/-    3.92  0.060 / 0.100
G24     46.4           18.3                3.5 +/-    1.85       8.1 +/-    1.85  0.050 / 0.030
G27     246.1          26.1                7.2 +/-    2.19      13.8 +/-    2.19  0.060 / 0.020
G31     182.9          14.0                4.3 +/-    0.86      11.0 +/-    0.86  0.190 / 0.360
G32     266.1          71.3                4.6 +/-    0.77       4.8 +/-    0.77  0.080 / 0.170