PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/30-20:43:00
G01     319.1          19.1               13.1 +/-    1.35      29.4 +/-    1.35  0.060 / 0.060
G08     259.2          14.1               15.9 +/-    1.02      40.3 +/-    1.02  0.040 / 0.050
G10     79.2           51.9               13.3 +/-    0.41      16.4 +/-    0.41  0.190 / 0.340
G11     306.4          20.2               14.2 +/-    2.24      31.0 +/-    2.24  0.210 / 0.310
G14     282.5          67.8               13.3 +/-    0.50      14.3 +/-    0.50  0.200 / 0.250
G20     105.4          27.8               13.8 +/-    0.87      25.3 +/-    0.87  0.190 / 0.270
G31     175.5          41.0               16.4 +/-    1.13      23.5 +/-    1.13  0.040 / 0.050
G32     8.2            67.8               12.4 +/-    1.23      13.3 +/-    1.23  0.030 / 0.040