PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/24-08:12:40
G02     66.6           25.9                3.5 +/-    2.51       6.8 +/-    2.51  0.040 / 0.050
G05     50.1           53.2                5.0 +/-    0.63       6.0 +/-    0.63  0.030 / 0.030
G12     184.5          26.2                4.4 +/-    1.06       8.3 +/-    1.06  0.090 / 0.130
G13     123.1          20.0                8.5 +/-    1.88      18.7 +/-    1.88  0.080 / 0.140
G15     158.6          18.6                6.5 +/-    1.22      14.9 +/-    1.22  0.060 / 0.050
G20     215.8          61.7                7.0 +/-    1.00       7.8 +/-    1.00  0.060 / 0.040
G21     277.9          23.3                3.5 +/-    0.77       7.1 +/-    0.77  0.190 / 0.220
G25     228.6          46.6                5.8 +/-    2.60       7.7 +/-    2.60  0.160 / 0.170
G29     334.4          62.8                4.9 +/-    0.70       5.4 +/-    0.70  0.120 / 0.300