PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/15-16:58:00
G02     228.2          67.7               10.2 +/-    0.92      10.9 +/-    0.92  0.140 / 0.300
G05     174.5          10.8               -5.0 +/-   20.95     -13.7 +/-   20.95  0.160 / 0.370
G06     43.2           62.0                8.7 +/-    0.52       9.7 +/-    0.52  0.060 / 0.090
G12     322.5          50.8                8.3 +/-    0.77      10.4 +/-    0.77  0.050 / 0.110
G17     66.8           24.7                9.2 +/-    1.73      18.1 +/-    1.73  0.040 / 0.040
G19     47.7           45.2                8.8 +/-    1.11      11.8 +/-    1.11  0.030 / 0.040
G24     249.7          37.9               12.4 +/-    1.69      18.7 +/-    1.69  0.030 / 0.030