PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/25-04:57:50
G08     265.8          18.3                5.1 +/-    1.45      11.6 +/-    1.45  0.030 / 0.030
G10     58.9           59.4                2.6 +/-    0.77       2.9 +/-    0.77  0.030 / 0.030
G11     310.0          19.2                4.6 +/-    1.23      10.4 +/-    1.23  0.110 / 0.170
G14     269.2          67.6                2.5 +/-    0.66       2.7 +/-    0.66  0.110 / 0.210
G18     90.4           38.2                3.9 +/-    0.93       5.9 +/-    0.93  0.230 / 0.230
G21     154.2          15.8                3.5 +/-    2.52       8.6 +/-    2.52  0.150 / 0.300
G24     40.4           11.7                4.3 +/-    1.68      11.5 +/-    1.68  0.160 / 0.270
G27     230.6          15.6                4.8 +/-    2.40      11.7 +/-    2.40  0.200 / 0.310
G31     178.2          30.1                6.3 +/-    1.11      11.0 +/-    1.11  0.070 / 0.050
G32     334.6          74.3                4.4 +/-    0.47       4.6 +/-    0.47  0.070 / 0.060