PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/29-21:58:10
G02     27.5           59.9                9.0 +/-    0.52      10.2 +/-    0.52  0.040 / 0.050
G05     145.4          58.2               11.7 +/-    0.85      13.5 +/-    0.85  0.040 / 0.050
G06     51.7           18.2                6.7 +/-    0.43      15.5 +/-    0.43  0.060 / 0.180
G12     199.9          71.5                9.0 +/-    1.21       9.4 +/-    1.21  0.070 / 0.220
G19     95.3           14.7                9.2 +/-    0.98      23.0 +/-    0.98  0.050 / 0.040
G25     303.3          50.1                9.4 +/-    0.46      11.9 +/-    0.46  0.040 / 0.040
G29     303.4          23.4                7.7 +/-    1.85      15.6 +/-    1.85  0.050 / 0.070