PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/06-11:28:00
G01     245.5          33.4                4.4 +/-    1.10       7.3 +/-    1.10  0.030 / 0.040
G03     314.8          52.3                3.0 +/-    0.67       3.7 +/-    0.67  0.030 / 0.040
G14     64.5           37.9                2.3 +/-    1.09       3.4 +/-    1.09  0.040 / 0.070
G16     163.0          20.2               -1.3 +/-   15.80      -2.8 +/-   15.80  0.040 / 0.070
G18     215.9          23.4                3.8 +/-    1.75       7.6 +/-    1.75  0.070 / 0.120
G22     292.6          73.2                4.2 +/-    0.93       4.4 +/-    0.93  0.070 / 0.110
G23     290.1          22.7                3.6 +/-    1.59       7.5 +/-    1.59  0.050 / 0.100
G26     135.0          40.7                5.6 +/-    0.75       8.1 +/-    0.75  0.060 / 0.110
G31     40.9           54.4                1.7 +/-    0.41       2.0 +/-    0.41  0.100 / 0.240
G32     78.6           23.9                3.0 +/-    1.28       6.1 +/-    1.28  0.080 / 0.230