PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/26-11:27:50
G01     268.4          41.5               23.8 +/-    1.11      33.8 +/-    1.11  0.060 / 0.090
G03     316.7          35.3                4.5 +/-    1.52       7.1 +/-    1.52  0.050 / 0.090
G10     130.1          14.9                6.9 +/-    1.02      17.1 +/-    1.02  0.120 / 0.150
G11     248.6          18.9                5.7 +/-    1.64      12.9 +/-    1.64  0.140 / 0.190
G14     45.1           49.0                4.3 +/-    0.99       5.4 +/-    0.99  0.050 / 0.060
G18     230.4          37.9                7.9 +/-    1.53      12.0 +/-    1.53  0.040 / 0.050
G22     314.0          57.3                4.1 +/-    0.99       4.8 +/-    0.99  0.050 / 0.070
G25     51.2           15.8                3.0 +/-    1.27       7.2 +/-    1.27  0.040 / 0.060
G31     54.8           73.4                5.6 +/-    1.05       5.8 +/-    1.05  0.120 / 0.250
G32     62.0           35.8                3.8 +/-    0.60       5.9 +/-    0.60  0.110 / 0.220