PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/24-18:57:30
G02     21.0           64.7               12.3 +/-    0.73      13.5 +/-    0.73  0.020 / 0.030
G05     158.7          50.8               17.2 +/-    0.67      21.5 +/-    0.67  0.020 / 0.040
G06     49.4           23.1               10.3 +/-    1.10      21.1 +/-    1.10  0.040 / 0.060
G12     218.4          76.3               12.5 +/-    1.00      12.9 +/-    1.00  0.040 / 0.070
G19     93.8           13.5               12.9 +/-    1.26      33.3 +/-    1.26  0.040 / 0.050
G20     197.3          18.4               16.3 +/-    1.32      37.4 +/-    1.32  0.040 / 0.050
G25     304.9          50.9               12.9 +/-    1.08      16.1 +/-    1.08  0.060 / 0.150
G29     302.2          23.9               12.4 +/-    1.53      24.8 +/-    1.53  0.090 / 0.120