PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/04-23:57:40
G02     227.7          71.1               10.6 +/-    0.42      11.1 +/-    0.42  0.030 / 0.050
G05     173.3          11.5               16.8 +/-   26.04      45.3 +/-   26.04  0.030 / 0.080
G06     43.6           64.5               10.5 +/-    0.52      11.5 +/-    0.52  0.130 / 0.310
G12     321.1          45.6               10.5 +/-    0.94      14.0 +/-    0.94  0.150 / 0.280
G17     63.7           29.4                9.9 +/-    0.55      17.6 +/-    0.55  0.060 / 0.120
G19     49.4           43.7               10.2 +/-    0.92      14.1 +/-    0.92  0.060 / 0.100
G24     252.5          38.2               12.1 +/-    1.10      18.2 +/-    1.10  0.040 / 0.050