PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/22-04:42:40
G08     278.3          22.3                5.3 +/-    1.08      11.0 +/-    1.08  0.030 / 0.020
G10     33.1           62.7                3.4 +/-    0.41       3.8 +/-    0.41  0.030 / 0.030
G11     316.9          10.8               -4.7 +/-    9.71     -12.9 +/-    9.71  0.030 / 0.020
G14     245.3          59.0                4.9 +/-    1.19       5.6 +/-    1.19  0.030 / 0.030
G18     77.0           45.8              -67.6 +/-   46.52     -90.1 +/-   46.52  0.070 / 0.150
G21     151.2          28.0                5.7 +/-    1.51      10.4 +/-    1.51  0.070 / 0.130
G24     47.1           20.1                5.2 +/-    3.84      11.5 +/-    3.84  0.270 / 0.090
G27     240.5          23.9                5.3 +/-    2.66      10.6 +/-    2.66  0.190 / 0.180
G31     180.7          17.9                4.6 +/-    1.04      10.7 +/-    1.04  0.070 / 0.050
G32     282.9          74.9                5.5 +/-    0.56       5.6 +/-    0.56  0.070 / 0.040