PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/12-22:43:10
G02     247.7          77.5               10.3 +/-    0.60      10.5 +/-    0.60  0.160 / 0.290
G05     170.4          17.9               15.6 +/-    2.18      36.1 +/-    2.18  0.110 / 0.280
G06     39.7           59.1               13.1 +/-    0.59      15.0 +/-    0.59  0.080 / 0.100
G12     320.8          50.5               10.6 +/-    1.21      13.3 +/-    1.21  0.100 / 0.140
G17     71.7           21.4               10.2 +/-    1.70      21.7 +/-    1.70  0.030 / 0.030
G19     58.5           37.2               11.4 +/-    2.13      17.4 +/-    2.13  0.030 / 0.030
G24     242.9          33.8               12.7 +/-    2.52      20.6 +/-    2.52  0.060 / 0.070
G25     316.6          13.6                8.2 +/-    4.32      21.2 +/-    4.32  0.050 / 0.070