PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/14-07:28:10
G01     94.0           30.8                6.9 +/-    1.74      11.9 +/-    1.74  0.030 / 0.040
G07     122.4          47.3                7.2 +/-    0.77       9.4 +/-    0.77  0.030 / 0.050
G08     42.1           9.4                 2.2 +/-    2.70       6.1 +/-    2.70  0.030 / 0.040
G11     72.7           40.2                5.9 +/-    0.87       8.5 +/-    0.87  0.040 / 0.040
G13     299.8          33.7                2.8 +/-    0.66       4.5 +/-    0.66  0.110 / 0.640
G17     212.0          52.0                7.9 +/-    0.58       9.7 +/-    0.58  0.070 / 0.470
G19     213.0          25.4                5.5 +/-    1.73      10.7 +/-    1.73  0.030 / 0.040
G28     343.9          61.8                4.3 +/-    0.53       4.8 +/-    0.53  0.040 / 0.050
G30     90.5           77.6                5.9 +/-    0.31       6.0 +/-    0.31  0.090 / 0.080