PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/09-12:12:30
G01     223.9          15.5                3.8 +/-    4.78       9.3 +/-    4.78  0.040 / 0.040
G03     271.2          72.0                6.1 +/-    0.84       6.4 +/-    0.84  0.040 / 0.040
G14     88.4           22.4                5.0 +/-    2.72      10.4 +/-    2.72  0.270 / 0.240
G16     147.9          45.4                6.0 +/-    1.00       8.0 +/-    1.00  0.160 / 0.340
G22     203.3          66.9                4.9 +/-    0.68       5.3 +/-    0.68  0.040 / 0.040
G23     309.5          39.8                3.4 +/-    1.10       5.0 +/-    1.10  0.030 / 0.020
G26     96.7           55.1                5.5 +/-    1.73       6.6 +/-    1.73  0.120 / 0.210
G31     46.3           30.3                4.5 +/-    1.38       7.8 +/-    1.38  0.100 / 0.180