PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/17-23:43:10
G01     44.7           20.9                6.1 +/-    3.26      13.2 +/-    3.26  0.160 / 0.220
G06     179.3          28.1               10.4 +/-    1.19      19.0 +/-    1.19  0.190 / 0.280
G13     242.8          26.8                8.9 +/-    2.84      16.8 +/-    2.84  0.040 / 0.040
G15     276.5          14.3                4.8 +/-    1.45      12.0 +/-    1.45  0.040 / 0.030
G17     350.7          74.7                7.3 +/-    0.57       7.6 +/-    0.57  0.080 / 0.180
G19     258.7          64.9                8.9 +/-    0.87       9.7 +/-    0.87  0.070 / 0.170
G24     317.6          15.3                4.4 +/-    2.06      10.9 +/-    2.06  0.090 / 0.260
G28     57.9           52.6                7.7 +/-    0.77       9.4 +/-    0.77  0.080 / 0.280
G30     152.4          33.9               11.5 +/-    1.25      18.6 +/-    1.25  0.030 / 0.060