PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/12-11:28:00
G03     231.2          66.6                5.3 +/-    0.59       5.8 +/-    0.59  0.080 / 0.060
G09     305.0          20.6                5.1 +/-    2.49      11.0 +/-    2.49  0.050 / 0.060
G14     100.5          16.1                2.9 +/-    1.83       7.0 +/-    1.83  0.090 / 0.280
G16     117.2          60.9                6.6 +/-    0.40       7.5 +/-    0.40  0.130 / 0.350
G22     190.4          51.0                6.5 +/-    2.24       8.1 +/-    2.24  0.040 / 0.050
G23     323.8          53.7                5.3 +/-    0.99       6.4 +/-    0.99  0.040 / 0.060
G26     63.4           48.7                2.8 +/-    0.58       3.6 +/-    0.58  0.050 / 0.050
G31     54.2           15.7                3.3 +/-    1.72       8.0 +/-    1.72  0.040 / 0.050