PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/14-19:42:30
G02     280.2          80.4               13.0 +/-    0.80      13.1 +/-    0.80  0.070 / 0.150
G05     168.0          24.9               16.9 +/-    1.23      33.2 +/-    1.23  0.090 / 0.150
G06     40.4           47.2               12.5 +/-    0.54      16.3 +/-    0.54  0.030 / 0.040
G12     320.2          65.2                9.9 +/-    1.40      10.8 +/-    1.40  0.030 / 0.040
G17     78.7           16.9               12.2 +/-    2.09      29.0 +/-    2.09  0.080 / 0.290
G19     64.6           35.1               12.3 +/-    0.71      19.4 +/-    0.71  0.080 / 0.260
G24     234.6          28.6               14.1 +/-    1.82      25.5 +/-    1.82  0.090 / 0.150
G25     317.7          20.9                9.8 +/-    2.68      21.0 +/-    2.68  0.070 / 0.150