PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/14-13:58:00
G01     223.3          14.7                6.2 +/-    3.33      15.5 +/-    3.33  0.230 / 0.360
G03     263.9          72.7                7.6 +/-    0.44       7.9 +/-    0.44  0.230 / 0.280
G14     89.5           21.4                5.9 +/-    2.40      12.6 +/-    2.40  0.050 / 0.040
G16     148.5          45.9                7.8 +/-    1.46      10.4 +/-    1.46  0.050 / 0.030
G22     197.4          64.5                6.9 +/-    0.39       7.6 +/-    0.39  0.040 / 0.040
G23     309.8          39.7                6.0 +/-    1.12       8.7 +/-    1.12  0.050 / 0.040
G26     96.1           55.5                6.5 +/-    0.91       7.8 +/-    0.91  0.130 / 0.260
G31     46.5           30.2                5.9 +/-    1.69      10.2 +/-    1.69  0.120 / 0.240