PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/09-19:13:20
G10     258.0          32.7               11.8 +/-    1.41      19.6 +/-    1.41  0.040 / 0.040
G13     46.9           24.5               12.8 +/-    2.82      25.3 +/-    2.82  0.040 / 0.030
G15     76.6           57.7               13.8 +/-    1.12      16.0 +/-    1.12  0.130 / 0.280
G16     287.3          14.6                7.9 +/-    1.51      20.0 +/-    1.51  0.120 / 0.330
G20     281.9          55.8               11.3 +/-    2.05      13.3 +/-    2.05  0.130 / 0.230
G21     346.6          66.2               13.2 +/-    0.43      14.3 +/-    0.43  0.110 / 0.150
G26     260.7          12.0                9.4 +/-    4.49      25.1 +/-    4.49  0.040 / 0.030
G29     166.4          41.0               14.1 +/-    0.71      20.2 +/-    0.71  0.040 / 0.040