PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/11-07:27:30
G01     100.8          28.4                4.8 +/-    0.96       8.7 +/-    0.96  0.040 / 0.050
G07     115.5          52.4                4.9 +/-    0.26       6.0 +/-    0.26  0.050 / 0.050
G08     41.7           14.4                0.7 +/-    1.94       1.8 +/-    1.94  0.030 / 0.040
G11     80.5           41.5                3.9 +/-    1.26       5.6 +/-    1.26  0.020 / 0.040
G13     305.8          30.7                2.8 +/-    1.41       4.9 +/-    1.41  0.040 / 0.050
G17     208.3          45.7                5.7 +/-    0.75       7.6 +/-    0.75  0.040 / 0.040
G19     210.7          19.7                4.7 +/-    1.60      10.5 +/-    1.60  0.070 / 0.130
G28     331.4          61.7                2.9 +/-    0.59       3.2 +/-    0.59  0.060 / 0.110
G30     57.2           79.4                4.7 +/-    0.49       4.8 +/-    0.49  0.190 / 0.350