PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/16-07:58:10
G01     72.7           33.0                5.8 +/-    1.46       9.6 +/-    1.46  0.030 / 0.050
G07     136.4          31.6                8.3 +/-    0.88      14.0 +/-    0.88  0.040 / 0.050
G11     55.0           31.2                4.0 +/-    1.43       6.9 +/-    1.43  0.070 / 0.080
G13     278.5          37.1                5.4 +/-    1.58       8.3 +/-    1.58  0.060 / 0.060
G15     304.0          15.2                2.7 +/-    1.15       6.6 +/-    1.15  0.070 / 0.210
G17     231.4          69.3                7.7 +/-    0.55       8.2 +/-    0.55  0.080 / 0.170
G19     223.1          42.0                7.8 +/-    1.70      11.0 +/-    1.70  0.030 / 0.030
G28     17.8           59.4                5.4 +/-    1.15       6.1 +/-    1.15  0.040 / 0.030
G30     132.9          62.9                7.7 +/-    0.35       8.5 +/-    0.35  0.050 / 0.070