PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/08-08:12:30
G01     221.7          13.7                4.3 +/-    2.56      11.2 +/-    2.56  0.040 / 0.040
G03     271.1          70.7                4.3 +/-    0.58       4.5 +/-    0.58  0.040 / 0.050
G14     90.1           21.7                3.1 +/-    1.49       6.6 +/-    1.49  0.040 / 0.040
G16     142.1          48.9                6.1 +/-    1.40       7.8 +/-    1.40  0.040 / 0.030
G22     207.1          66.1                4.0 +/-    0.56       4.4 +/-    0.56  0.140 / 0.430
G23     313.5          44.3                4.2 +/-    1.15       5.8 +/-    1.15  0.150 / 0.670
G26     89.0           54.5                5.6 +/-    1.29       6.7 +/-    1.29  0.150 / 0.240
G31     47.7           26.9                1.6 +/-    2.12       2.9 +/-    2.12  0.110 / 0.260