PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/25-22:57:50
G03     246.0          69.1                5.5 +/-    0.32       5.8 +/-    0.32  0.040 / 0.050
G09     304.0          21.2                5.1 +/-    1.99      11.0 +/-    1.99  0.040 / 0.060
G14     96.6           19.3                6.4 +/-    1.21      14.3 +/-    1.21  0.120 / 0.260
G16     124.5          57.6                8.8 +/-    0.32      10.3 +/-    0.32  0.110 / 0.280
G22     199.1          57.2                7.8 +/-    0.75       9.1 +/-    0.75  0.040 / 0.030
G23     318.2          48.0                6.1 +/-    1.26       7.9 +/-    1.26  0.030 / 0.030
G26     71.0           51.9                5.0 +/-    0.53       6.2 +/-    0.53  0.040 / 0.040
G31     51.9           20.2                5.5 +/-    3.15      12.1 +/-    3.15  0.040 / 0.040