PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/09-20:27:50
G02     30.9           56.6                8.0 +/-    1.53       9.3 +/-    1.53  0.060 / 0.060
G05     140.1          61.4                9.7 +/-    0.54      10.9 +/-    0.54  0.090 / 0.060
G06     52.8           16.4                6.9 +/-    1.37      16.6 +/-    1.37  0.050 / 0.050
G12     203.8          70.4                9.2 +/-    0.56       9.7 +/-    0.56  0.050 / 0.050
G25     299.0          52.2                8.9 +/-    2.60      11.0 +/-    2.60  0.030 / 0.030
G29     306.9          28.1                8.5 +/-    1.46      15.5 +/-    1.46  0.030 / 0.030