PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/24-02:12:40
G02     44.3           45.2                9.6 +/-    0.64      12.9 +/-    0.64  0.030 / 0.050
G05     104.6          68.8               11.7 +/-    0.38      12.5 +/-    0.38  0.030 / 0.040
G12     192.8          56.5               15.4 +/-    1.32      18.0 +/-    1.32  0.050 / 0.070
G25     273.0          58.8               12.6 +/-    0.75      14.5 +/-    0.75  0.040 / 0.050
G29     318.2          41.2               11.6 +/-    0.96      16.6 +/-    0.96  0.040 / 0.030