PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/28-22:43:00
G02     256.9          79.1               12.5 +/-    0.65      12.7 +/-    0.65  0.040 / 0.050
G05     169.4          20.4               20.0 +/-    0.87      43.6 +/-    0.87  0.050 / 0.040
G06     40.2           53.4               10.7 +/-    0.54      13.0 +/-    0.54  0.080 / 0.140
G12     321.5          57.2               11.0 +/-    1.12      12.9 +/-    1.12  0.110 / 0.140
G17     73.2           22.1               10.2 +/-    1.61      21.3 +/-    1.61  0.050 / 0.190
G19     59.9           37.6               11.1 +/-    0.83      16.9 +/-    0.83  0.050 / 0.190
G24     240.6          32.4               18.8 +/-    2.09      31.4 +/-    2.09  0.030 / 0.030
G25     317.3          15.2               10.1 +/-    2.84      25.0 +/-    2.84  0.030 / 0.030