PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/13-14:12:20
G02     240.1          73.5                6.6 +/-    0.68       6.9 +/-    0.68  0.090 / 0.090
G05     173.2          14.6                8.4 +/-    1.66      21.2 +/-    1.66  0.100 / 0.090
G06     40.5           57.5                6.8 +/-    0.58       7.9 +/-    0.58  0.060 / 0.110
G12     321.4          52.3                6.4 +/-    1.02       7.8 +/-    1.02  0.120 / 0.100
G17     69.1           24.2                7.2 +/-    1.24      14.3 +/-    1.24  0.060 / 0.060
G19     57.8           37.0                7.1 +/-    1.58      10.8 +/-    1.58  0.060 / 0.050
G24     246.8          34.7                8.8 +/-    1.76      14.0 +/-    1.76  0.040 / 0.030
G25     316.1          11.1              -12.8 +/-   25.73     -34.8 +/-   25.73  0.060 / 0.040