PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/07-22:43:00
G10     266.6          37.2               18.0 +/-    0.90      27.4 +/-    0.90  0.150 / 0.350
G13     42.7           20.1               17.4 +/-    1.35      38.2 +/-    1.35  0.180 / 0.330
G15     60.0           49.5               20.0 +/-    0.67      25.3 +/-    0.67  0.040 / 0.060
G16     282.2          11.3               15.8 +/-    1.63      42.9 +/-    1.63  0.040 / 0.050
G18     299.9          64.2               17.5 +/-    0.84      19.2 +/-    0.84  0.090 / 0.250
G20     54.8           34.3               16.5 +/-    0.64      26.5 +/-    0.64  0.100 / 0.260
G21     5.3            72.3               20.4 +/-    1.03      21.3 +/-    1.03  0.050 / 0.120
G24     121.6          13.8               22.3 +/-    1.85      57.2 +/-    1.85  0.050 / 0.140
G27     317.8          20.2               16.6 +/-    2.29      36.3 +/-    2.29  0.150 / 0.560
G29     166.5          27.9               21.9 +/-    1.58      40.2 +/-    1.58  0.150 / 0.580