PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/23-15:28:10
G01     223.1          14.5                7.7 +/-   13.85      19.4 +/-   13.85  0.360 / 0.490
G03     266.6          72.0                9.3 +/-    0.29       9.7 +/-    0.29  0.310 / 0.340
G14     90.0           21.1                6.9 +/-    1.10      14.8 +/-    1.10  0.120 / 0.280
G16     149.8          45.7                9.6 +/-    1.67      12.8 +/-    1.67  0.100 / 0.210
G22     200.0          65.0                9.5 +/-    0.59      10.4 +/-    0.59  0.040 / 0.030
G23     309.7          39.4                6.7 +/-    1.35       9.8 +/-    1.35  0.040 / 0.040
G26     97.0           55.9                8.3 +/-    1.06       9.8 +/-    1.06  0.040 / 0.040
G31     46.4           30.7                6.7 +/-    1.04      11.5 +/-    1.04  0.040 / 0.040