PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/27-14:12:50
G02     237.1          71.4                5.6 +/-    0.71       5.9 +/-    0.71  0.090 / 0.310
G05     174.5          13.3                5.9 +/-    0.96      15.2 +/-    0.96  0.090 / 0.280
G06     40.9           58.2                5.3 +/-    1.00       6.1 +/-    1.00  0.030 / 0.050
G12     322.2          54.0                5.0 +/-    1.11       6.1 +/-    1.11  0.060 / 0.050
G17     71.1           21.2                5.1 +/-    0.79      10.8 +/-    0.79  0.090 / 0.110
G19     52.6           42.7                5.3 +/-    0.68       7.3 +/-    0.68  0.090 / 0.090
G24     242.7          34.9                7.9 +/-    1.39      12.6 +/-    1.39  0.040 / 0.040
G25     316.5          14.0                2.7 +/-    3.62       7.0 +/-    3.62  0.040 / 0.040