PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/07-00:28:00
G02     303.4          81.8                9.0 +/-    0.88       9.1 +/-    0.88  0.030 / 0.040
G05     166.5          26.8               15.0 +/-    0.93      28.2 +/-    0.93  0.040 / 0.040
G06     40.3           47.2                7.3 +/-    0.60       9.6 +/-    0.60  0.110 / 0.170
G12     319.1          63.4               10.6 +/-    1.53      11.8 +/-    1.53  0.100 / 0.150
G17     78.3           19.1               10.2 +/-    1.07      23.0 +/-    1.07  0.040 / 0.110
G19     67.0           33.1               10.0 +/-    0.83      16.4 +/-    0.83  0.050 / 0.120
G24     234.7          28.1               14.0 +/-    1.90      25.6 +/-    1.90  0.030 / 0.040
G25     317.8          21.0                9.2 +/-    1.56      19.8 +/-    1.56  0.040 / 0.040