PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-20:42:50
G02     204.5          38.4               16.7 +/-    1.05      25.0 +/-    1.05  0.110 / 0.190
G06     148.7          73.5               15.6 +/-    0.72      16.2 +/-    0.72  0.110 / 0.220
G12     310.0          19.4               13.3 +/-    2.54      29.7 +/-    2.54  0.080 / 0.090
G17     37.4           48.3               13.2 +/-    0.55      17.0 +/-    0.55  0.080 / 0.090
G19     4.5            63.9               12.9 +/-    0.29      14.2 +/-    0.29  0.030 / 0.060
G24     293.2          40.1               14.0 +/-    0.76      20.3 +/-    0.76  0.030 / 0.050
G28     106.1          28.6               14.2 +/-    0.62      25.7 +/-    0.62  0.070 / 0.150