PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/09-00:12:30
G02     280.5          81.5                9.5 +/-    0.93       9.6 +/-    0.93  0.040 / 0.040
G05     167.7          23.9               15.5 +/-    0.89      31.1 +/-    0.89  0.030 / 0.050
G06     40.0           50.2                9.3 +/-    0.44      11.7 +/-    0.44  0.090 / 0.120
G12     320.5          60.2                9.8 +/-    0.85      11.1 +/-    0.85  0.070 / 0.160
G17     75.8           20.8                9.7 +/-    1.39      20.8 +/-    1.39  0.090 / 0.220
G19     63.9           35.0                9.8 +/-    0.79      15.5 +/-    0.79  0.090 / 0.220
G24     237.4          30.1               12.3 +/-    2.73      21.4 +/-    2.73  0.040 / 0.030
G25     317.7          18.3                8.5 +/-    1.71      19.4 +/-    1.71  0.030 / 0.030