PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/17-10:57:40
G02     259.9          78.6                5.8 +/-    0.56       5.9 +/-    0.56  0.080 / 0.100
G05     171.8          19.2                5.8 +/-    2.18      12.9 +/-    2.18  0.080 / 0.110
G06     39.6           53.5                4.6 +/-    0.56       5.5 +/-    0.56  0.030 / 0.030
G12     321.1          58.0                4.6 +/-    0.84       5.4 +/-    0.84  0.030 / 0.030
G17     76.5           16.9                4.5 +/-    2.29      10.6 +/-    2.29  0.040 / 0.030
G19     60.3           37.6                5.2 +/-    0.73       7.9 +/-    0.73  0.040 / 0.030
G24     235.0          30.8                5.5 +/-    2.04       9.5 +/-    2.04  0.050 / 0.050