PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/14-00:12:30
G02     340.0          79.5                7.8 +/-    0.72       7.9 +/-    0.72  0.030 / 0.050
G05     163.9          32.7               13.4 +/-    0.89      22.3 +/-    0.89  0.030 / 0.040
G06     41.4           41.2                7.4 +/-    0.68      10.6 +/-    0.68  0.050 / 0.110
G12     313.7          70.0                8.6 +/-    0.84       9.1 +/-    0.84  0.050 / 0.090
G17     83.5           15.1                8.8 +/-    2.01      21.8 +/-    2.01  0.100 / 0.190
G19     72.7           29.5                9.2 +/-    1.17      16.3 +/-    1.17  0.100 / 0.160
G24     229.5          23.8               13.2 +/-    2.95      26.5 +/-    2.95  0.030 / 0.040
G25     317.6          26.6                7.5 +/-    2.08      14.0 +/-    2.08  0.030 / 0.070