PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/15-00:58:00
G02     25.4           61.9                3.3 +/-    8.98       3.7 +/-    8.98  0.020 / 0.030
G05     148.8          54.7                7.5 +/-    8.18       9.0 +/-    8.18  0.020 / 0.030
G06     49.5           22.1                4.7 +/-    9.88       9.9 +/-    9.88  0.040 / 0.050
G12     217.2          76.4                3.3 +/-    8.81       3.4 +/-    8.81  0.040 / 0.050
G19     92.4           16.3                9.2 +/-    8.47      22.2 +/-    8.47  0.050 / 0.080
G25     307.9          46.3                4.6 +/-    8.82       6.1 +/-    8.82  0.060 / 0.080
G29     300.7          20.9                5.7 +/-    9.38      12.4 +/-    9.38  0.030 / 0.040