PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/29-15:57:50
G02     226.3          66.0               10.9 +/-    0.82      11.9 +/-    0.82  0.050 / 0.090
G06     44.0           63.0                8.3 +/-    0.47       9.2 +/-    0.47  0.060 / 0.100
G12     322.6          50.2                8.2 +/-    0.75      10.3 +/-    0.75  0.040 / 0.060
G17     66.1           24.9                7.4 +/-    0.87      14.5 +/-    0.87  0.040 / 0.050
G19     46.0           46.2                7.4 +/-    0.60       9.8 +/-    0.60  0.030 / 0.030
G24     250.9          38.5                9.4 +/-    1.25      14.1 +/-    1.25  0.030 / 0.030