PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/30-07:12:40
G01     66.7           32.2                5.5 +/-    0.92       9.2 +/-    0.92  0.040 / 0.050
G07     139.3          27.0                7.9 +/-    1.42      14.8 +/-    1.42  0.040 / 0.040
G11     51.7           28.0                3.7 +/-    1.92       6.8 +/-    1.92  0.040 / 0.090
G13     271.7          36.5                6.5 +/-    1.40      10.0 +/-    1.40  0.080 / 0.130
G15     299.1          16.2                3.5 +/-    2.43       8.5 +/-    2.43  0.100 / 0.260
G17     242.6          73.4                7.9 +/-    0.38       8.2 +/-    0.38  0.120 / 0.200
G19     227.3          46.8                7.5 +/-    2.70       9.9 +/-    2.70  0.020 / 0.020
G28     27.0           58.1                7.5 +/-    1.32       8.7 +/-    1.32  0.020 / 0.020
G30     138.4          57.3                8.6 +/-    0.57      10.1 +/-    0.57  0.060 / 0.060