PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/10-21:43:10
G10     247.3          23.0               16.7 +/-    1.69      34.2 +/-    1.69  0.060 / 0.120
G13     58.8           33.5               13.9 +/-    1.56      22.7 +/-    1.56  0.080 / 0.160
G15     95.7           57.9               15.9 +/-    0.45      18.5 +/-    0.45  0.170 / 0.230
G16     302.6          14.0               12.7 +/-    1.35      32.3 +/-    1.35  0.110 / 0.200
G18     263.4          53.4               14.1 +/-    2.17      17.1 +/-    2.17  0.030 / 0.050
G20     40.3           51.5               14.2 +/-    0.87      17.6 +/-    0.87  0.040 / 0.040
G21     330.0          58.3               14.4 +/-    0.53      16.6 +/-    0.53  0.050 / 0.060
G26     275.0          16.6               15.2 +/-    2.17      36.3 +/-    2.17  0.080 / 0.060
G29     161.9          50.5               16.3 +/-    0.70      20.4 +/-    0.70  0.030 / 0.040