PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/17-17:28:10
G01     317.3          21.6                7.4 +/-    3.22      15.8 +/-    3.22  0.170 / 0.300
G08     254.7          10.8                7.9 +/-    4.02      21.6 +/-    4.02  0.140 / 0.220
G10     86.2           51.1                6.8 +/-    0.79       8.4 +/-    0.79  0.240 / 0.400
G11     300.4          24.0                7.0 +/-    1.74      13.9 +/-    1.74  0.230 / 0.390
G14     309.8          70.8                6.6 +/-    0.52       6.9 +/-    0.52  0.230 / 0.240
G18     106.5          23.8                8.2 +/-    2.28      16.5 +/-    2.28  0.150 / 0.180
G22     302.9          14.0                5.6 +/-    2.34      14.2 +/-    2.34  0.030 / 0.050
G25     97.6           10.5                6.9 +/-   27.57      19.1 +/-   27.57  0.040 / 0.040
G31     175.3          46.8                8.1 +/-    0.82      10.7 +/-    0.82  0.050 / 0.030
G32     15.6           64.1                6.6 +/-    0.57       7.2 +/-    0.57  0.030 / 0.070