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               11.1 +/-    0.58      11.3 +/-    0.58  0.030 / 0.040
G05     169.4          20.4               18.3 +/-    1.65      39.8 +/-    1.65  0.040 / 0.030
G06     40.2           53.4               10.4 +/-    0.55      12.6 +/-    0.55  0.100 / 0.120
G12     321.5          57.2               10.3 +/-    0.53      12.0 +/-    0.53  0.150 / 0.190
G17     73.2           22.1               10.0 +/-    0.95      21.0 +/-    0.95  0.160 / 0.230
G19     59.9           37.6               11.4 +/-    0.92      17.3 +/-    0.92  0.130 / 0.150
G24     240.6          32.4               15.9 +/-    1.10      26.6 +/-    1.10  0.050 / 0.040
G25     317.3          15.2                9.3 +/-    1.91      22.9 +/-    1.91  0.060 / 0.090