PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/03-21:57:50
G02     34.1           54.6                8.9 +/-    0.71      10.7 +/-    0.71  0.040 / 0.030
G05     134.2          63.9               11.7 +/-    0.33      12.8 +/-    0.33  0.040 / 0.040
G06     55.4           13.0                7.6 +/-    2.25      19.7 +/-    2.25  0.040 / 0.030
G12     191.9          63.8               10.7 +/-    0.72      11.7 +/-    0.72  0.040 / 0.030
G19     100.8          10.6               10.0 +/-    1.43      27.6 +/-    1.43  0.050 / 0.100
G25     293.8          54.7                8.6 +/-    2.04      10.3 +/-    2.04  0.090 / 0.090
G29     308.2          28.4                8.5 +/-    0.94      15.4 +/-    0.94  0.170 / 0.260