PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/11-09:58:10
G01     223.3          15.2                6.4 +/-    4.41      15.8 +/-    4.41  0.040 / 0.040
G03     274.6          71.0                5.2 +/-    0.83       5.4 +/-    0.83  0.040 / 0.040
G14     88.6           22.5                3.6 +/-    2.12       7.4 +/-    2.12  0.030 / 0.040
G16     145.5          46.5                6.5 +/-    0.66       8.5 +/-    0.66  0.040 / 0.050
G22     207.3          67.4                5.9 +/-    0.34       6.4 +/-    0.34  0.220 / 0.270
G23     310.9          41.5                4.5 +/-    1.98       6.4 +/-    1.98  0.180 / 0.350
G26     94.0           54.7                6.7 +/-    0.49       8.0 +/-    0.49  0.140 / 0.190
G31     46.7           29.1                3.3 +/-    2.14       5.9 +/-    2.14  0.130 / 0.260