PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/17-18:43:00
G05     48.2           18.8                8.5 +/-    1.38      19.3 +/-    1.38  0.050 / 0.080
G10     235.8          13.9               13.7 +/-    2.33      34.9 +/-    2.33  0.070 / 0.080
G13     74.9           35.2               11.1 +/-    1.35      17.5 +/-    1.35  0.070 / 0.120
G15     125.2          52.3               11.6 +/-    0.31      14.2 +/-    0.31  0.050 / 0.100
G16     313.8          12.7                6.0 +/-    2.48      15.8 +/-    2.48  0.030 / 0.040
G20     248.6          37.9               12.3 +/-    1.03      18.5 +/-    1.03  0.030 / 0.040
G21     312.9          46.1               10.3 +/-    1.03      13.6 +/-    1.03  0.130 / 0.320
G25     200.1          12.0               13.5 +/-    1.83      36.0 +/-    1.83  0.110 / 0.300
G26     287.7          20.2                8.2 +/-    2.21      18.0 +/-    2.21  0.150 / 0.300
G29     152.8          73.4               11.0 +/-    0.52      11.4 +/-    0.52  0.140 / 0.360