PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/22-09:12:30
G01     223.6          15.4                5.9 +/-    1.66      14.5 +/-    1.66  0.130 / 0.180
G03     277.4          70.5                3.1 +/-    0.75       3.3 +/-    0.75  0.240 / 0.250
G14     88.1           22.9                3.0 +/-    0.66       6.1 +/-    0.66  0.050 / 0.050
G16     145.3          46.3                5.2 +/-    0.57       6.8 +/-    0.57  0.040 / 0.040
G22     209.5          68.1                3.9 +/-    0.99       4.2 +/-    0.99  0.040 / 0.050
G23     310.9          41.7                2.8 +/-    1.70       4.0 +/-    1.70  0.040 / 0.050
G26     94.3           54.6                5.4 +/-    0.95       6.5 +/-    0.95  0.130 / 0.290
G31     46.6           29.2                1.4 +/-    0.85       2.6 +/-    0.85  0.130 / 0.230