PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/06-08:57:50
G01     63.1           31.4                3.5 +/-    1.27       6.0 +/-    1.27  0.030 / 0.040
G06     182.8          10.4              -16.6 +/-   21.10     -45.9 +/-   21.10  0.030 / 0.040
G07     140.9          23.7                5.9 +/-    2.96      12.0 +/-    2.96  0.120 / 0.270
G11     49.6           25.0                2.9 +/-    2.21       5.6 +/-    2.21  0.130 / 0.210
G13     268.0          35.7                7.2 +/-    1.79      11.2 +/-    1.79  0.070 / 0.120
G15     296.6          16.4                5.5 +/-    1.73      13.2 +/-    1.73  0.060 / 0.130
G17     253.4          76.3                6.4 +/-    0.26       6.5 +/-    0.26  0.030 / 0.030
G19     230.3          49.9                7.4 +/-    2.46       9.3 +/-    2.46  0.020 / 0.020
G28     32.2           57.2                3.4 +/-    0.79       4.0 +/-    0.79  0.080 / 0.070
G30     141.1          55.0                6.4 +/-    0.47       7.6 +/-    0.47  0.060 / 0.070