PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/13-09:28:10
G01     68.1           32.6                5.0 +/-    0.97       8.4 +/-    0.97  0.040 / 0.040
G07     138.6          27.9                5.5 +/-    0.86      10.1 +/-    0.86  0.040 / 0.050
G11     51.2           28.0                2.8 +/-    1.09       5.2 +/-    1.09  0.050 / 0.110
G13     271.1          37.5                7.0 +/-    1.36      10.6 +/-    1.36  0.050 / 0.090
G15     304.0          13.7                3.0 +/-    1.93       7.7 +/-    1.93  0.060 / 0.090
G17     239.5          73.4                7.5 +/-    0.48       7.8 +/-    0.48  0.060 / 0.080
G18     45.9           15.8                2.3 +/-    1.28       5.6 +/-    1.28  0.080 / 0.110
G19     225.5          40.2                6.3 +/-    2.57       9.1 +/-    2.57  0.080 / 0.110
G28     21.3           59.2                5.4 +/-    0.39       6.2 +/-    0.39  0.130 / 0.430
G30     138.1          61.4                7.7 +/-    0.56       8.6 +/-    0.56  0.150 / 0.420