PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/11-00:27:50
G02     30.3           57.4               11.9 +/-    1.61      13.9 +/-    1.61  0.050 / 0.050
G05     142.2          59.6               15.3 +/-    1.24      17.4 +/-    1.24  0.040 / 0.060
G06     51.0           20.2                9.9 +/-    3.21      21.6 +/-    3.21  0.040 / 0.030
G12     212.3          73.3               13.5 +/-    0.91      14.0 +/-    0.91  0.030 / 0.030
G19     97.1           11.1               13.8 +/-    1.54      37.5 +/-    1.54  0.230 / 0.150
G25     301.3          51.4               13.1 +/-    2.51      16.2 +/-    2.51  0.200 / 0.210
G29     306.3          28.3               11.8 +/-    1.01      21.4 +/-    1.01  0.030 / 0.030