PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/11-13:43:10
G01     100.6          28.3                5.5 +/-    1.45      10.0 +/-    1.45  0.080 / 0.140
G07     116.2          50.3                6.8 +/-    0.34       8.5 +/-    0.34  0.080 / 0.130
G08     41.6           13.5                4.9 +/-    3.25      12.6 +/-    3.25  0.020 / 0.030
G11     78.4           40.1                7.1 +/-    1.23      10.3 +/-    1.23  0.030 / 0.030
G13     306.2          30.5                6.5 +/-    1.10      11.3 +/-    1.10  0.030 / 0.030
G17     208.0          46.6                7.3 +/-    1.47       9.6 +/-    1.47  0.030 / 0.040
G19     210.6          20.1                8.5 +/-    1.75      18.7 +/-    1.75  0.060 / 0.120
G28     330.3          61.5                5.6 +/-    0.80       6.2 +/-    0.80  0.060 / 0.110
G30     42.1           79.8                5.7 +/-    0.67       5.8 +/-    0.67  0.040 / 0.050