PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/28-17:42:50
G01     106.3          26.0               17.3 +/-    1.04      33.0 +/-    1.04  0.060 / 0.160
G07     107.9          58.0               18.1 +/-    0.38      20.9 +/-    0.38  0.060 / 0.160
G08     42.1           21.3               12.2 +/-    1.30      26.1 +/-    1.30  0.020 / 0.050
G09     174.6          12.8               19.9 +/-    1.79      52.1 +/-    1.79  0.030 / 0.050
G11     88.7           43.0               16.7 +/-    0.32      23.2 +/-    0.32  0.030 / 0.040
G13     309.0          29.1               16.0 +/-    1.15      28.5 +/-    1.15  0.030 / 0.030
G17     206.9          36.2               19.0 +/-    1.74      29.5 +/-    1.74  0.030 / 0.090
G18     79.8           24.5               15.8 +/-    1.56      31.2 +/-    1.56  0.040 / 0.100
G28     319.8          61.1               16.7 +/-    0.50      18.7 +/-    0.50  0.050 / 0.090
G30     30.1           78.5               17.5 +/-    0.87      17.8 +/-    0.87  0.050 / 0.090