PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/25-14:27:30
G02     201.4          17.6                9.1 +/-    3.36      21.2 +/-    3.36  0.220 / 0.310
G06     167.7          55.4               10.1 +/-    0.82      12.0 +/-    0.82  0.160 / 0.290
G13     227.1          13.2                8.5 +/-    3.35      22.1 +/-    3.35  0.110 / 0.120
G17     24.0           58.6                9.2 +/-    0.74      10.6 +/-    0.74  0.100 / 0.120
G19     309.2          70.1                8.2 +/-    0.49       8.7 +/-    0.49  0.170 / 0.460
G24     309.2          31.0                8.2 +/-    1.29      14.0 +/-    1.29  0.090 / 0.230
G28     87.3           40.1                8.2 +/-    2.08      11.9 +/-    2.08  0.040 / 0.040
G30     157.8          16.5                8.8 +/-    2.23      21.1 +/-    2.23  0.040 / 0.030