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                9.7 +/-    0.74       9.8 +/-    0.74  0.040 / 0.040
G05     167.7          23.9               14.2 +/-    1.67      28.4 +/-    1.67  0.030 / 0.040
G06     40.0           50.2               10.2 +/-    0.74      12.8 +/-    0.74  0.090 / 0.140
G12     320.5          60.2                9.2 +/-    1.06      10.4 +/-    1.06  0.070 / 0.090
G17     75.8           20.8               10.5 +/-    1.03      22.7 +/-    1.03  0.130 / 0.140
G19     63.9           35.0               10.2 +/-    1.38      16.3 +/-    1.38  0.100 / 0.180
G24     237.4          30.1               13.4 +/-    2.53      23.4 +/-    2.53  0.120 / 0.180
G25     317.7          18.3                7.7 +/-    1.77      17.7 +/-    1.77  0.100 / 0.200