PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/26-13:13:10
G01     221.6          13.1               14.7 +/-    2.75      38.1 +/-    2.75  0.050 / 0.040
G03     255.6          72.6                8.6 +/-    0.95       8.9 +/-    0.95  0.050 / 0.030
G14     91.5           20.1                7.5 +/-    1.85      16.4 +/-    1.85  0.160 / 0.470
G16     145.6          48.5               10.6 +/-    0.38      13.7 +/-    0.38  0.170 / 0.630
G22     197.2          62.9                8.7 +/-    0.32       9.7 +/-    0.32  0.040 / 0.040
G23     311.8          41.8                6.7 +/-    1.48       9.4 +/-    1.48  0.040 / 0.030
G26     90.7           55.5                8.4 +/-    0.96      10.0 +/-    0.96  0.140 / 0.280
G31     47.6           27.8                5.8 +/-    2.03      10.6 +/-    2.03  0.150 / 0.240