PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/01-21:57:50
G05     49.0           16.3                8.5 +/-    0.72      20.4 +/-    0.72  0.280 / 0.420
G10     236.5          14.6               16.3 +/-    1.52      41.0 +/-    1.52  0.240 / 0.520
G13     73.5           35.2               10.8 +/-    0.79      17.0 +/-    0.79  0.180 / 0.230
G15     122.6          53.1               14.2 +/-    0.70      17.2 +/-    0.70  0.150 / 0.210
G16     313.6          12.6                8.9 +/-    2.86      23.4 +/-    2.86  0.130 / 0.350
G20     249.2          37.5               14.2 +/-    0.87      21.5 +/-    0.87  0.110 / 0.420
G21     313.9          46.9               10.2 +/-    0.89      13.3 +/-    0.89  0.050 / 0.060
G25     199.5          11.0               17.6 +/-   19.90      48.0 +/-   19.90  0.040 / 0.060
G26     286.9          20.0               10.0 +/-    1.42      22.0 +/-    1.42  0.120 / 0.240
G29     153.4          71.0               12.3 +/-    0.64      12.9 +/-    0.64  0.140 / 0.320