PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/23-05:27:50
G01     262.2          39.4                5.0 +/-    1.08       7.3 +/-    1.08  0.060 / 0.080
G03     316.2          32.6                3.2 +/-    3.53       5.3 +/-    3.53  0.050 / 0.080
G10     133.1          12.9                4.6 +/-    1.72      12.1 +/-    1.72  0.040 / 0.080
G11     242.6          18.0                6.0 +/-    2.71      13.9 +/-    2.71  0.040 / 0.060
G14     51.9           45.0                2.4 +/-    0.31       3.3 +/-    0.31  0.040 / 0.040
G22     312.4          57.6                3.8 +/-    0.93       4.4 +/-    0.93  0.030 / 0.060
G25     43.8           12.2                3.2 +/-    1.11       8.6 +/-    1.11  0.130 / 0.250
G26     146.0          29.1                6.1 +/-    1.35      10.9 +/-    1.35  0.100 / 0.240
G31     45.8           69.3                4.3 +/-    0.84       4.5 +/-    0.84  0.070 / 0.100
G32     68.5           30.2                3.8 +/-    0.61       6.6 +/-    0.61  0.070 / 0.100