PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/11-19:27:30
G02     233.9          72.0               11.9 +/-    0.66      12.4 +/-    0.66  0.050 / 0.280
G05     172.7          13.9               13.7 +/-    2.66      35.0 +/-    2.66  0.090 / 0.310
G06     41.7           59.5               11.5 +/-    0.44      13.1 +/-    0.44  0.060 / 0.060
G12     322.3          52.2               10.1 +/-    1.72      12.5 +/-    1.72  0.040 / 0.070
G17     68.5           24.3               10.5 +/-    0.59      20.8 +/-    0.59  0.030 / 0.050
G19     51.9           42.6               10.6 +/-    0.54      14.9 +/-    0.54  0.030 / 0.050
G24     246.9          36.2               13.7 +/-    1.06      21.2 +/-    1.06  0.050 / 0.110