PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/09-03:27:50
G01     293.3          39.5                1.8 +/-    1.08       2.6 +/-    1.08  0.060 / 0.100
G03     310.7          13.2                3.9 +/-    2.66      10.2 +/-    2.66  0.050 / 0.090
G10     117.8          31.4                2.0 +/-    0.63       3.5 +/-    0.63  0.050 / 0.080
G11     265.4          27.6                1.5 +/-    1.46       2.7 +/-    1.46  0.050 / 0.090
G14     23.6           59.0                2.7 +/-    0.92       3.1 +/-    0.92  0.030 / 0.050
G22     313.2          36.1                3.0 +/-    1.27       4.7 +/-    1.27  0.040 / 0.050
G25     65.7           17.7                2.6 +/-    1.41       6.1 +/-    1.41  0.050 / 0.060
G26     160.1          10.2              -15.8 +/-   31.44     -43.9 +/-   31.44  0.040 / 0.050
G31     148.6          77.0                1.4 +/-    0.91       1.5 +/-    0.91  0.070 / 0.160
G32     46.9           45.5                1.2 +/-    0.47       1.6 +/-    0.47  0.060 / 0.140