PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/03-17:57:20
G02     37.4           51.9                7.2 +/-    0.81       8.9 +/-    0.81  0.030 / 0.040
G05     123.6          67.7                7.3 +/-    0.84       7.9 +/-    0.84  0.030 / 0.040
G12     184.9          54.6                8.9 +/-    1.78      10.7 +/-    1.78  0.050 / 0.050
G25     281.2          58.2                8.7 +/-    0.76      10.0 +/-    0.76  0.030 / 0.060
G29     312.1          32.7                6.5 +/-    0.70      10.8 +/-    0.70  0.040 / 0.070