PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/26-18:12:30
G02     30.1           57.7                8.9 +/-    0.51      10.3 +/-    0.51  0.040 / 0.030
G05     140.5          62.1               10.1 +/-    1.17      11.3 +/-    1.17  0.030 / 0.030
G06     54.5           13.6                8.0 +/-    2.06      20.5 +/-    2.06  0.030 / 0.050
G12     188.7          64.0                8.9 +/-    1.55       9.8 +/-    1.55  0.030 / 0.040
G19     98.9           12.7                8.9 +/-    1.29      23.4 +/-    1.29  0.040 / 0.050
G25     295.6          54.5                8.1 +/-    0.47       9.6 +/-    0.47  0.050 / 0.050
G29     306.7          26.8                5.3 +/-    1.67       9.9 +/-    1.67  0.120 / 0.290