PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/11-17:12:30
G02     30.9           56.8                9.9 +/-    0.38      11.6 +/-    0.38  0.030 / 0.050
G05     139.9          63.7               12.2 +/-    0.73      13.4 +/-    0.73  0.040 / 0.050
G06     55.6           12.7                6.7 +/-    2.32      17.6 +/-    2.32  0.030 / 0.040
G12     189.7          62.3               12.7 +/-    1.61      14.2 +/-    1.61  0.030 / 0.040
G19     100.7          11.8                9.2 +/-    1.23      24.7 +/-    1.23  0.030 / 0.040
G25     290.1          56.7                9.2 +/-    1.02      10.8 +/-    1.02  0.030 / 0.050
G29     308.8          29.2                7.4 +/-    1.72      13.2 +/-    1.72  0.040 / 0.050