PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/12-16:12:30
G01     309.0          31.7                7.9 +/-    2.66      13.4 +/-    2.66  0.090 / 0.130
G10     103.6          42.0                8.7 +/-    0.79      12.3 +/-    0.79  0.070 / 0.140
G11     287.0          27.0                6.5 +/-    0.76      12.2 +/-    0.76  0.080 / 0.170
G14     348.0          68.2                7.4 +/-    0.45       8.0 +/-    0.45  0.090 / 0.150
G22     309.2          25.3                7.9 +/-    1.69      15.3 +/-    1.69  0.030 / 0.030
G25     85.0           16.1                8.5 +/-    2.60      20.7 +/-    2.60  0.020 / 0.030
G31     167.7          63.1                9.8 +/-    0.53      10.8 +/-    0.53  0.030 / 0.040
G32     34.5           53.5                8.0 +/-    1.36       9.7 +/-    1.36  0.040 / 0.040