PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/29-12:43:10
G01     227.2          18.7                5.5 +/-    1.70      12.5 +/-    1.70  0.160 / 0.320
G03     284.4          70.7                3.5 +/-    0.39       3.6 +/-    0.39  0.180 / 0.340
G14     84.6           25.0                6.3 +/-    0.57      12.2 +/-    0.57  0.050 / 0.040
G16     151.9          40.7                7.8 +/-    0.66      11.2 +/-    0.66  0.030 / 0.040
G22     209.5          70.7                5.1 +/-    1.14       5.3 +/-    1.14  0.030 / 0.040
G23     305.9          36.3                3.0 +/-    1.11       4.7 +/-    1.11  0.040 / 0.030
G26     105.8          54.1                6.1 +/-    0.38       7.4 +/-    0.38  0.110 / 0.220
G31     44.5           34.5                4.0 +/-    0.96       6.3 +/-    0.96  0.100 / 0.180
G32     95.8           11.1                5.6 +/-    2.31      15.3 +/-    2.31  0.050 / 0.100