PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/12-16:57:40
G02     25.7           60.5                9.6 +/-    0.83      10.8 +/-    0.83  0.030 / 0.040
G05     147.7          59.3               11.6 +/-    0.55      13.2 +/-    0.55  0.030 / 0.020
G06     52.9           16.3                7.1 +/-    1.83      17.1 +/-    1.83  0.020 / 0.030
G12     193.7          67.8                9.9 +/-    0.32      10.6 +/-    0.32  0.020 / 0.030
G19     96.7           14.8                8.8 +/-    1.35      21.9 +/-    1.35  0.070 / 0.040
G25     297.9          53.9                8.9 +/-    2.10      10.7 +/-    2.10  0.040 / 0.040
G29     305.5          25.7                8.8 +/-    1.04      17.0 +/-    1.04  0.070 / 0.160