PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/11-08:12:40
G01     76.3           33.2                3.5 +/-    1.09       5.7 +/-    1.09  0.050 / 0.040
G07     134.5          34.2                6.4 +/-    1.51      10.3 +/-    1.51  0.040 / 0.050
G11     57.3           33.0                2.5 +/-    1.17       4.1 +/-    1.17  0.050 / 0.100
G13     282.4          37.1                4.6 +/-    2.53       7.1 +/-    2.53  0.050 / 0.080
G15     306.6          14.4                0.6 +/-    3.97       1.5 +/-    3.97  0.040 / 0.030
G17     226.6          66.6                6.4 +/-    1.05       6.9 +/-    1.05  0.030 / 0.030
G19     221.0          39.2                5.0 +/-    1.35       7.3 +/-    1.35  0.080 / 0.100
G28     12.3           60.0                2.7 +/-    0.62       3.1 +/-    0.62  0.070 / 0.090
G30     129.0          66.0                5.4 +/-    0.51       5.8 +/-    0.51  0.100 / 0.200