PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/22-02:58:00
G01     222.2          14.7                4.7 +/-    1.90      11.9 +/-    1.90  0.030 / 0.040
G03     281.9          68.7                3.9 +/-    0.63       4.1 +/-    0.63  0.040 / 0.040
G09     295.8          10.3              -14.5 +/-   20.13     -40.3 +/-   20.13  0.260 / 0.400
G14     87.5           24.7                4.7 +/-    0.88       9.3 +/-    0.88  0.230 / 0.420
G16     141.3          47.9                6.8 +/-    1.16       8.8 +/-    1.16  0.100 / 0.190
G22     215.4          68.5                5.7 +/-    0.83       6.0 +/-    0.83  0.100 / 0.170
G23     310.5          40.9                4.0 +/-    1.30       5.7 +/-    1.30  0.050 / 0.100
G26     91.0           54.2                5.5 +/-    0.62       6.6 +/-    0.62  0.070 / 0.100
G31     47.0           28.2                1.4 +/-    0.96       2.5 +/-    0.96  0.140 / 0.410