PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/25-16:12:30
G02     204.6          35.6               12.6 +/-    1.46      19.7 +/-    1.46  0.060 / 0.100
G06     153.2          71.8               10.8 +/-    0.51      11.3 +/-    0.51  0.050 / 0.120
G12     308.0          16.2                7.1 +/-    1.97      17.0 +/-    1.97  0.110 / 0.090
G17     35.0           50.0                7.9 +/-    0.62       9.9 +/-    0.62  0.090 / 0.090
G19     9.4            63.0                9.3 +/-    0.73      10.3 +/-    0.73  0.030 / 0.050
G24     295.2          38.7                8.8 +/-    1.99      13.1 +/-    1.99  0.040 / 0.040
G28     101.7          34.8                9.3 +/-    0.65      14.9 +/-    0.65  0.060 / 0.040