PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/11-08:12:50
G08     266.3          17.7                6.0 +/-    1.21      13.9 +/-    1.21  0.220 / 0.230
G10     65.2           56.7                3.6 +/-    1.05       4.2 +/-    1.05  0.260 / 0.280
G11     310.2          18.5                0.4 +/-    9.97       0.8 +/-    9.97  0.110 / 0.250
G14     270.5          67.7                4.2 +/-    1.01       4.5 +/-    1.01  0.120 / 0.310
G18     311.1          34.6                2.9 +/-    2.12       4.7 +/-    2.12  0.030 / 0.020
G20     97.0           35.5                3.4 +/-    0.98       5.4 +/-    0.98  0.040 / 0.030
G21     155.0          13.3                5.5 +/-    2.72      14.2 +/-    2.72  0.040 / 0.040
G27     231.9          15.5                6.2 +/-    2.64      15.3 +/-    2.64  0.040 / 0.050
G31     178.0          31.7                5.7 +/-    1.38       9.6 +/-    1.38  0.110 / 0.190
G32     328.0          74.2                5.8 +/-    0.57       6.0 +/-    0.57  0.110 / 0.220