PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/26-13:28:00
G02     201.4          25.8                7.6 +/-    1.25      14.7 +/-    1.25  0.180 / 0.110
G06     169.8          59.4                8.8 +/-    0.97      10.0 +/-    0.97  0.130 / 0.130
G17     31.2           53.2                6.7 +/-    0.62       8.1 +/-    0.62  0.200 / 0.360
G19     347.7          68.9                6.5 +/-    0.60       6.9 +/-    0.60  0.190 / 0.340
G24     307.1          32.3                4.9 +/-    2.09       8.1 +/-    2.09  0.050 / 0.040
G28     95.0           35.8                7.4 +/-    1.36      11.6 +/-    1.36  0.040 / 0.030
G30     157.9          10.2                8.0 +/-    5.98      22.4 +/-    5.98  0.060 / 0.030