PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/08-11:12:50
G01     314.2          27.2                5.8 +/-    1.00      10.7 +/-    1.00  0.120 / 0.160
G10     95.3           45.5                5.9 +/-    1.27       7.9 +/-    1.27  0.110 / 0.120
G11     291.4          27.1                6.1 +/-    1.95      11.3 +/-    1.95  0.050 / 0.050
G14     334.1          70.6                5.4 +/-    0.90       5.6 +/-    0.90  0.050 / 0.040
G18     289.6          48.7                6.3 +/-    4.29       8.1 +/-    4.29  0.040 / 0.020
G20     114.1          21.0                4.0 +/-    1.69       8.7 +/-    1.69  0.040 / 0.030
G22     307.4          22.8                4.8 +/-    2.04       9.9 +/-    2.04  0.050 / 0.050
G25     90.6           12.8                3.7 +/-    1.41       9.6 +/-    1.41  0.050 / 0.050
G31     173.9          53.0                7.3 +/-    0.96       8.9 +/-    0.96  0.080 / 0.130
G32     15.4           63.4                4.9 +/-    0.77       5.4 +/-    0.77  0.070 / 0.130