PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/17-02:12:50
G01     284.6          41.3                9.5 +/-    4.79      13.5 +/-    4.79  0.050 / 0.070
G03     313.3          19.8                4.0 +/-    1.25       8.8 +/-    1.25  0.060 / 0.070
G10     123.3          24.5                7.0 +/-    1.18      13.8 +/-    1.18  0.050 / 0.040
G11     259.0          24.2                9.1 +/-    3.61      18.0 +/-    3.61  0.050 / 0.050
G14     29.8           56.5                6.2 +/-    0.99       7.3 +/-    0.99  0.050 / 0.070
G18     244.4          45.2                7.8 +/-    5.03      10.5 +/-    5.03  0.050 / 0.070
G22     314.4          42.0                6.6 +/-    0.54       9.3 +/-    0.54  0.070 / 0.230
G25     60.0           17.6                6.2 +/-    1.19      14.6 +/-    1.19  0.090 / 0.250
G31     95.4           79.5                6.6 +/-    0.46       6.7 +/-    0.46  0.080 / 0.130
G32     56.1           37.9                5.7 +/-    1.06       8.6 +/-    1.06  0.080 / 0.120