PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/07-00:58:10
G08     293.6          23.4               12.0 +/-    1.31      24.3 +/-    1.31  0.030 / 0.030
G10     1.0            62.9               12.3 +/-    0.93      13.6 +/-    0.93  0.030 / 0.020
G14     228.7          46.5               15.2 +/-    2.20      20.0 +/-    2.20  0.040 / 0.080
G18     60.3           52.6               13.5 +/-    0.81      16.5 +/-    0.81  0.050 / 0.070
G21     144.9          41.2               15.7 +/-    1.18      22.4 +/-    1.18  0.050 / 0.080
G24     59.1           27.4               12.7 +/-    1.72      23.4 +/-    1.72  0.080 / 0.090
G27     254.6          32.3               14.2 +/-    1.33      23.8 +/-    1.33  0.070 / 0.090
G32     241.3          63.7               13.8 +/-    1.13      15.2 +/-    1.13  0.090 / 0.100