PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/11-14:57:50
G02     27.1           59.7                6.4 +/-    0.39       7.3 +/-    0.39  0.040 / 0.070
G05     151.4          57.9                7.9 +/-    0.76       9.2 +/-    0.76  0.040 / 0.060
G06     52.4           17.3                4.2 +/-    0.49       9.9 +/-    0.49  0.030 / 0.030
G12     197.7          69.5                7.2 +/-    0.70       7.6 +/-    0.70  0.020 / 0.040
G19     96.5           14.5                7.1 +/-    2.15      17.9 +/-    2.15  0.030 / 0.040
G25     297.5          54.5                5.1 +/-    1.23       6.1 +/-    1.23  0.030 / 0.040
G29     305.3          25.7                5.5 +/-    1.46      10.6 +/-    1.46  0.070 / 0.150