PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/15-17:12:50
G01     269.5          40.7                9.3 +/-    1.98      13.4 +/-    1.98  0.040 / 0.060
G03     316.3          33.3                7.8 +/-    1.59      12.8 +/-    1.59  0.050 / 0.060
G10     130.4          16.5               10.6 +/-    1.35      25.5 +/-    1.35  0.020 / 0.030
G11     252.3          20.0                9.6 +/-    6.15      21.2 +/-    6.15  0.020 / 0.030
G14     43.1           50.5               11.5 +/-    1.42      14.4 +/-    1.42  0.040 / 0.070
G22     313.9          54.2                9.4 +/-    1.13      11.3 +/-    1.13  0.060 / 0.080
G25     51.9           16.8                9.0 +/-    2.17      21.4 +/-    2.17  0.080 / 0.200
G26     146.8          26.1               12.7 +/-    2.79      24.3 +/-    2.79  0.090 / 0.150
G31     52.5           72.3                9.0 +/-    0.40       9.4 +/-    0.40  0.100 / 0.140
G32     65.5           31.2                7.8 +/-    4.43      13.2 +/-    4.43  0.120 / 0.090