PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/21-00:12:40
G01     238.1          29.6               10.9 +/-    2.44      19.2 +/-    2.44  0.050 / 0.040
G03     313.2          51.9                8.3 +/-    1.04      10.2 +/-    1.04  0.040 / 0.040
G14     67.1           38.1                8.8 +/-    2.17      13.3 +/-    2.17  0.070 / 0.090
G16     156.2          28.0                9.6 +/-    1.50      17.5 +/-    1.50  0.070 / 0.100
G22     286.6          71.9                9.2 +/-    0.65       9.6 +/-    0.65  0.040 / 0.050
G23     294.3          26.1                9.9 +/-    1.61      18.9 +/-    1.61  0.040 / 0.050
G26     125.3          45.7                9.7 +/-    0.86      13.0 +/-    0.86  0.100 / 0.140
G31     41.4           47.5                6.9 +/-    0.76       8.9 +/-    0.76  0.130 / 0.150
G32     85.4           15.9                8.0 +/-    1.62      19.4 +/-    1.62  0.130 / 0.160