PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/23-08:12:50
G01     244.4          33.0                5.7 +/-    1.59       9.4 +/-    1.59  0.040 / 0.040
G03     314.9          50.3                4.3 +/-    1.21       5.4 +/-    1.21  0.040 / 0.030
G14     64.7           38.1                2.9 +/-    1.09       4.4 +/-    1.09  0.060 / 0.070
G16     161.0          21.9                4.3 +/-    3.36       9.1 +/-    3.36  0.050 / 0.080
G18     216.1          23.1                5.7 +/-    2.67      11.7 +/-    2.67  0.130 / 0.100
G22     295.0          71.0                4.3 +/-    0.49       4.5 +/-    0.49  0.080 / 0.100
G23     291.6          25.1                5.4 +/-    1.09      10.4 +/-    1.09  0.050 / 0.090
G26     132.5          41.7                5.6 +/-    1.38       7.9 +/-    1.38  0.050 / 0.080
G31     41.2           52.4                4.2 +/-    0.93       5.1 +/-    0.93  0.110 / 0.210
G32     80.0           21.8                3.5 +/-    1.44       7.4 +/-    1.44  0.080 / 0.130