PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/22-00:42:40
G02     337.5          79.6                8.8 +/-    0.62       8.9 +/-    0.62  0.030 / 0.080
G05     164.3          31.8               14.4 +/-    1.06      24.2 +/-    1.06  0.020 / 0.040
G06     39.8           45.4                7.0 +/-    0.60       9.3 +/-    0.60  0.110 / 0.270
G12     315.6          65.8                7.9 +/-    0.75       8.6 +/-    0.75  0.120 / 0.270
G17     84.1           12.1               10.7 +/-    1.82      28.6 +/-    1.82  0.090 / 0.170
G19     72.6           28.3                8.6 +/-    0.64      15.7 +/-    0.64  0.070 / 0.160
G24     229.1          24.0               11.7 +/-    1.09      23.4 +/-    1.09  0.030 / 0.050
G25     317.2          27.4                6.5 +/-    1.51      12.1 +/-    1.51  0.030 / 0.050
G29     285.6          10.8               -0.5 +/-   27.63      -1.5 +/-   27.63  0.050 / 0.090