PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/09-17:13:00
G01     284.9          41.0                8.2 +/-    1.14      11.7 +/-    1.14  0.040 / 0.060
G03     313.8          23.2                6.8 +/-    3.42      13.8 +/-    3.42  0.040 / 0.070
G10     123.2          25.5                9.7 +/-    0.94      18.7 +/-    0.94  0.040 / 0.070
G11     263.1          24.4                9.5 +/-    0.89      18.8 +/-    0.89  0.050 / 0.080
G14     28.8           56.9                6.0 +/-    0.62       7.0 +/-    0.62  0.020 / 0.030
G22     314.6          43.6                7.4 +/-    1.20      10.2 +/-    1.20  0.020 / 0.020
G25     62.7           19.0                8.2 +/-    0.77      18.4 +/-    0.77  0.040 / 0.080
G26     153.8          16.9               10.9 +/-    1.88      25.9 +/-    1.88  0.050 / 0.100
G31     97.7           79.9                7.9 +/-    0.67       8.0 +/-    0.67  0.140 / 0.150
G32     55.6           38.5                7.4 +/-    0.30      11.1 +/-    0.30  0.120 / 0.210