PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/26-21:12:30
G02     331.0          79.8                9.3 +/-    0.41       9.5 +/-    0.41  0.090 / 0.260
G05     164.6          32.2               13.9 +/-    1.41      23.3 +/-    1.41  0.110 / 0.290
G06     41.5           40.4                9.6 +/-    0.64      13.9 +/-    0.64  0.070 / 0.100
G12     313.0          72.0                9.9 +/-    0.60      10.3 +/-    0.60  0.050 / 0.100
G17     84.4           13.3               11.0 +/-    1.27      28.6 +/-    1.27  0.030 / 0.030
G19     72.1           30.3               11.7 +/-    0.66      20.3 +/-    0.66  0.030 / 0.040
G24     228.8          23.6               13.7 +/-    2.84      27.6 +/-    2.84  0.070 / 0.190
G25     317.5          27.2                8.4 +/-    1.18      15.6 +/-    1.18  0.070 / 0.160