PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/16-02:12:30
G02     31.8           56.2                6.6 +/-    1.12       7.7 +/-    1.12  0.030 / 0.030
G05     140.4          60.6                9.7 +/-    0.51      10.9 +/-    0.51  0.020 / 0.020
G06     51.2           20.3                6.0 +/-    1.60      13.0 +/-    1.60  0.140 / 0.220
G12     209.8          72.2                7.8 +/-    0.73       8.2 +/-    0.73  0.190 / 0.300
G19     98.0           10.7                6.0 +/-    2.12      16.6 +/-    2.12  0.060 / 0.050
G25     299.2          52.8                6.9 +/-    2.02       8.4 +/-    2.02  0.040 / 0.060
G29     307.8          30.3                6.5 +/-    1.69      11.3 +/-    1.69  0.030 / 0.040