PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/22-22:58:10
G02     242.6          76.4               11.0 +/-    0.48      11.3 +/-    0.48  0.050 / 0.050
G05     170.8          17.0               20.0 +/-    1.74      47.4 +/-    1.74  0.050 / 0.040
G06     40.7           57.4               10.3 +/-    0.70      12.0 +/-    0.70  0.090 / 0.140
G12     321.8          53.0               10.9 +/-    0.84      13.3 +/-    0.84  0.060 / 0.140
G17     69.8           24.6               10.3 +/-    0.84      20.4 +/-    0.84  0.070 / 0.110
G19     56.1           39.9               10.8 +/-    0.90      15.8 +/-    0.90  0.070 / 0.120
G24     244.7          34.7               13.8 +/-    1.24      22.0 +/-    1.24  0.030 / 0.030
G25     316.7          11.8                1.7 +/-   33.29       4.5 +/-   33.29  0.030 / 0.040