PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/17-07:12:40
G01     96.0           30.2                6.7 +/-    0.64      11.6 +/-    0.64  0.040 / 0.060
G07     120.5          48.9                7.8 +/-    1.07      10.0 +/-    1.07  0.040 / 0.050
G08     41.9           10.9                4.0 +/-    2.03      11.0 +/-    2.03  0.040 / 0.050
G11     75.0           40.8                6.1 +/-    0.48       8.8 +/-    0.48  0.030 / 0.050
G13     301.6          33.0                4.0 +/-    1.23       6.7 +/-    1.23  0.130 / 0.310
G17     210.8          50.1                9.9 +/-    0.33      12.5 +/-    0.33  0.120 / 0.320
G19     212.3          23.8                6.4 +/-    2.97      12.8 +/-    2.97  0.060 / 0.040
G28     340.4          61.8                4.0 +/-    0.67       4.4 +/-    0.67  0.040 / 0.050
G30     82.7           78.3                5.4 +/-    0.65       5.5 +/-    0.65  0.050 / 0.120