PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/15-08:57:40
G02     201.2          21.8                4.8 +/-    2.88      10.0 +/-    2.88  0.070 / 0.090
G06     169.9          56.3                6.7 +/-    0.65       7.9 +/-    0.65  0.060 / 0.110
G13     225.0          11.5                4.4 +/-    2.71      11.9 +/-    2.71  0.040 / 0.030
G17     27.7           55.8                4.1 +/-    0.74       4.9 +/-    0.74  0.040 / 0.030
G19     320.6          70.2                4.3 +/-    0.38       4.5 +/-    0.38  0.150 / 0.220
G24     305.6          34.7                3.6 +/-    1.10       5.7 +/-    1.10  0.110 / 0.220
G28     89.5           39.7                5.3 +/-    1.14       7.7 +/-    1.14  0.030 / 0.030
G30     158.0          13.7                5.3 +/-    2.74      13.7 +/-    2.74  0.030 / 0.030