PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/02-16:27:40
G02     28.4           59.7               14.5 +/-    0.53      16.5 +/-    0.53  0.040 / 0.060
G05     152.8          56.0               16.3 +/-    1.01      19.2 +/-    1.01  0.040 / 0.050
G06     51.0           20.9                9.9 +/-    0.75      21.3 +/-    0.75  0.040 / 0.040
G12     209.9          73.0               13.8 +/-    1.13      14.4 +/-    1.13  0.040 / 0.030
G19     97.2           11.1               13.1 +/-    1.42      35.7 +/-    1.42  0.080 / 0.150
G20     198.0          21.6               16.0 +/-    2.41      33.8 +/-    2.41  0.070 / 0.160
G25     301.2          52.5               12.0 +/-    1.72      14.7 +/-    1.72  0.090 / 0.250
G29     306.2          28.5               11.2 +/-    1.48      20.2 +/-    1.48  0.080 / 0.220