PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-21:57:40
G02     233.4          72.9               13.0 +/-    0.56      13.5 +/-    0.56  0.050 / 0.070
G05     172.4          13.9               19.5 +/-    2.81      49.8 +/-    2.81  0.040 / 0.070
G06     41.9           60.7               13.4 +/-    0.51      15.1 +/-    0.51  0.060 / 0.100
G12     321.8          49.9               12.3 +/-    1.06      15.5 +/-    1.06  0.070 / 0.110
G17     67.1           26.2               12.0 +/-    1.37      22.8 +/-    1.37  0.050 / 0.110
G19     52.0           42.4               12.7 +/-    0.93      17.7 +/-    0.93  0.060 / 0.140
G24     248.3          36.6               18.1 +/-    1.15      28.0 +/-    1.15  0.060 / 0.330