PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/12-03:28:00
G02     76.5           18.7                4.2 +/-    4.62       9.6 +/-    4.62  0.080 / 0.270
G05     44.9           40.2                2.1 +/-   20.02       3.1 +/-   20.02  0.090 / 0.290
G12     180.2          12.1               10.6 +/-   20.11      28.3 +/-   20.11  0.040 / 0.070
G13     110.1          28.4                7.5 +/-   19.48      13.7 +/-   19.48  0.030 / 0.060
G15     151.8          29.5               10.2 +/-   17.04      18.0 +/-   17.04  0.070 / 0.120
G20     229.2          36.5               10.8 +/-   19.60      16.7 +/-   19.60  0.060 / 0.100
G21     288.2          29.5                7.1 +/-   15.23      12.6 +/-   15.23  0.090 / 0.170
G25     216.2          35.0                7.9 +/-   18.00      12.6 +/-   18.00  0.090 / 0.170
G26     312.8          15.5                6.6 +/-   23.09      16.2 +/-   23.09  0.070 / 0.190
G29     343.0          74.9                4.8 +/-    9.15       5.0 +/-    9.15  0.070 / 0.160