PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/28-11:27:50
G01     319.9          16.2                5.5 +/-    1.14      13.2 +/-    1.14  0.170 / 0.270
G08     258.9          14.7                4.4 +/-    1.71      11.0 +/-    1.71  0.120 / 0.260
G10     76.2           53.6                4.1 +/-    0.65       5.0 +/-    0.65  0.040 / 0.030
G11     304.6          22.4                4.4 +/-    2.49       9.2 +/-    2.49  0.050 / 0.020
G14     290.3          70.7                4.4 +/-    0.77       4.6 +/-    0.77  0.030 / 0.020
G18     305.6          40.8                5.4 +/-    1.64       7.8 +/-    1.64  0.020 / 0.020
G20     103.2          30.7                4.2 +/-    0.93       7.2 +/-    0.93  0.040 / 0.050
G27     227.6          11.2                3.5 +/-    2.04       9.5 +/-    2.04  0.040 / 0.050
G31     177.9          37.6                6.0 +/-    1.42       9.0 +/-    1.42  0.280 / 0.250
G32     347.0          71.5                3.9 +/-    0.79       4.1 +/-    0.79  0.320 / 0.340