PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/14-14:57:50
G08     270.8          18.2                6.2 +/-    1.95      14.3 +/-    1.95  0.100 / 0.150
G10     58.6           59.2                5.8 +/-    0.50       6.6 +/-    0.50  0.150 / 0.210
G11     313.8          14.4                3.4 +/-    1.43       8.5 +/-    1.43  0.050 / 0.090
G14     263.0          64.2                6.7 +/-    0.62       7.4 +/-    0.62  0.080 / 0.120
G21     153.7          14.1                9.3 +/-    3.50      23.6 +/-    3.50  0.170 / 0.360
G24     40.4           11.4                6.3 +/-    1.76      17.2 +/-    1.76  0.180 / 0.340
G27     231.7          16.2                7.3 +/-    2.05      17.7 +/-    2.05  0.060 / 0.050
G31     178.2          29.8               10.1 +/-    1.36      17.8 +/-    1.36  0.050 / 0.040
G32     337.7          74.4                6.2 +/-    0.38       6.4 +/-    0.38  0.140 / 0.280