PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/26-07:12:40
G08     318.2          13.6                2.5 +/-    1.91       6.5 +/-    1.91  0.030 / 0.050
G10     313.4          56.7                3.5 +/-    0.52       4.1 +/-    0.52  0.040 / 0.040
G14     212.6          20.8                4.4 +/-    1.75       9.5 +/-    1.75  0.030 / 0.040
G15     45.6           18.7                2.7 +/-    0.94       6.2 +/-    0.94  0.040 / 0.040
G20     14.8           63.9                5.2 +/-    0.44       5.7 +/-    0.44  0.060 / 0.090
G21     119.8          65.8                5.9 +/-    0.85       6.4 +/-    0.85  0.050 / 0.070
G24     86.2           29.0                4.8 +/-    0.60       8.6 +/-    0.60  0.110 / 0.260
G27     291.4          36.5                4.7 +/-    0.94       7.2 +/-    0.94  0.090 / 0.220
G32     215.4          36.5                6.5 +/-    2.56      10.0 +/-    2.56  0.060 / 0.150