PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/07-13:27:50
G01     313.1          28.4                5.2 +/-    0.81       9.5 +/-    0.81  0.070 / 0.130
G10     97.4           44.4                7.2 +/-    0.59       9.8 +/-    0.59  0.100 / 0.130
G11     289.2          27.6                5.1 +/-    2.61       9.5 +/-    2.61  0.040 / 0.040
G14     339.8          70.1                5.2 +/-    0.50       5.5 +/-    0.50  0.040 / 0.040
G18     285.8          50.0                7.8 +/-    1.80       9.8 +/-    1.80  0.040 / 0.040
G20     115.4          19.6                6.3 +/-    1.86      14.1 +/-    1.86  0.050 / 0.040
G22     307.6          22.4                5.4 +/-    2.49      11.2 +/-    2.49  0.030 / 0.030
G25     87.8           13.4                6.3 +/-    1.17      16.2 +/-    1.17  0.050 / 0.030
G31     174.9          53.9                9.2 +/-    0.48      11.1 +/-    0.48  0.070 / 0.150
G32     20.9           61.2                6.3 +/-    0.68       7.1 +/-    0.68  0.070 / 0.170