PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/29-03:58:00
G08     286.1          23.4               -2.4 +/-   19.76      -4.9 +/-   19.76  0.030 / 0.030
G10     16.4           63.3                4.2 +/-    0.56       4.7 +/-    0.56  0.040 / 0.030
G14     235.7          52.8                6.1 +/-    1.63       7.5 +/-    1.63  0.050 / 0.120
G18     68.2           49.8              -40.9 +/-   62.23     -51.7 +/-   62.23  0.050 / 0.110
G21     148.4          35.3                7.2 +/-    1.45      11.4 +/-    1.45  0.050 / 0.070
G24     52.7           24.3                4.3 +/-    0.80       8.5 +/-    0.80  0.040 / 0.060
G27     247.3          28.5                5.2 +/-    1.34       9.3 +/-    1.34  0.060 / 0.120
G31     182.6          10.9               -2.3 +/-   17.45      -6.3 +/-   17.45  0.090 / 0.120
G32     257.5          70.8               10.2 +/-    4.62      10.7 +/-    4.62  0.080 / 0.110