PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/17-07:28:10
G01     87.3           32.3                6.9 +/-    0.55      11.5 +/-    0.55  0.060 / 0.070
G07     127.7          42.4                8.5 +/-    1.12      11.9 +/-    1.12  0.030 / 0.060
G11     66.1           38.1                4.9 +/-    0.65       7.3 +/-    0.65  0.050 / 0.060
G13     293.5          35.7                4.7 +/-    0.84       7.4 +/-    0.84  0.050 / 0.070
G15     313.7          11.2                0.4 +/-   11.20       1.2 +/-   11.20  0.110 / 0.310
G17     216.3          57.7                8.9 +/-    0.86      10.4 +/-    0.86  0.120 / 0.360
G19     215.7          30.7                8.2 +/-    1.70      14.1 +/-    1.70  0.060 / 0.050
G28     355.2          61.4                5.0 +/-    0.92       5.6 +/-    0.92  0.050 / 0.040
G30     111.0          73.7                6.5 +/-    0.79       6.7 +/-    0.79  0.110 / 0.110