PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/17-00:58:00
G02     29.0           59.0               10.4 +/-    1.06      11.9 +/-    1.06  0.030 / 0.030
G05     144.4          58.1               12.9 +/-    0.59      14.9 +/-    0.59  0.030 / 0.030
G06     51.3           19.2                9.1 +/-    1.98      20.3 +/-    1.98  0.030 / 0.030
G12     206.5          73.0               11.4 +/-    0.53      11.9 +/-    0.53  0.040 / 0.030
G19     95.4           14.2               12.3 +/-    1.39      31.3 +/-    1.39  0.150 / 0.110
G25     304.3          49.2               10.4 +/-    4.96      13.3 +/-    4.96  0.120 / 0.070
G29     303.3          23.4               10.0 +/-    1.12      20.2 +/-    1.12  0.130 / 0.190