PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/29-01:12:30
G02     28.7           58.7                6.7 +/-    0.88       7.7 +/-    0.88  0.110 / 0.070
G05     144.8          57.9               10.4 +/-    0.58      12.1 +/-    0.58  0.070 / 0.070
G06     49.9           22.1                5.7 +/-    2.82      11.9 +/-    2.82  0.020 / 0.030
G12     218.0          74.9                8.2 +/-    0.41       8.4 +/-    0.41  0.030 / 0.020
G19     95.6           12.4                7.9 +/-    1.38      21.0 +/-    1.38  0.030 / 0.040
G25     303.3          50.3                6.8 +/-    2.57       8.6 +/-    2.57  0.030 / 0.030
G29     305.2          27.5                7.3 +/-    2.79      13.5 +/-    2.79  0.230 / 0.160