PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/14-13:42:30
G02     320.3          79.7                4.7 +/-    0.79       4.8 +/-    0.79  0.030 / 0.030
G05     168.8          29.1                7.4 +/-    2.17      13.1 +/-    2.17  0.030 / 0.030
G06     41.2           41.1                3.0 +/-    1.20       4.3 +/-    1.20  0.090 / 0.110
G12     313.1          71.7                4.3 +/-    0.68       4.5 +/-    0.68  0.080 / 0.110
G17     85.6           10.5                7.2 +/-    2.82      19.8 +/-    2.82  0.170 / 0.110
G19     71.3           31.4                6.9 +/-    1.89      11.7 +/-    1.89  0.150 / 0.120
G24     226.4          22.9                6.3 +/-    2.00      12.9 +/-    2.00  0.050 / 0.050
G25     317.0          30.6                6.6 +/-    1.49      11.3 +/-    1.49  0.080 / 0.050