PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/07-16:57:30
G02     260.4          78.1                6.9 +/-    0.35       7.0 +/-    0.35  0.410 / 0.520
G05     169.9          20.9                7.9 +/-    3.90      17.0 +/-    3.90  0.320 / 0.270
G06     39.7           51.7                8.1 +/-    0.59       9.9 +/-    0.59  0.150 / 0.140
G12     320.7          57.1                6.8 +/-    0.53       7.9 +/-    0.53  0.100 / 0.120
G17     73.4           22.0                7.6 +/-    1.73      16.0 +/-    1.73  0.070 / 0.120
G19     63.6           33.4                8.4 +/-    0.97      13.8 +/-    0.97  0.060 / 0.160
G24     240.1          31.1                7.9 +/-    1.45      13.5 +/-    1.45  0.080 / 0.080
G25     317.1          16.4                5.7 +/-    2.14      13.6 +/-    2.14  0.070 / 0.120