PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/10-20:13:10
G02     29.5           58.6               13.0 +/-    0.57      14.9 +/-    0.57  0.040 / 0.040
G05     148.9          59.7               16.2 +/-    0.75      18.5 +/-    0.75  0.030 / 0.040
G06     53.7           16.2                9.4 +/-    0.88      22.6 +/-    0.88  0.050 / 0.060
G12     198.6          67.8               12.4 +/-    0.49      13.2 +/-    0.49  0.040 / 0.060
G20     197.7          26.8               16.7 +/-    1.61      31.5 +/-    1.61  0.030 / 0.050
G25     292.4          57.2               13.3 +/-    0.96      15.5 +/-    0.96  0.030 / 0.040
G29     307.9          29.3               11.7 +/-    0.92      20.8 +/-    0.92  0.050 / 0.140