PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/22-04:58:10
G08     270.9          20.2                3.6 +/-    1.79       7.8 +/-    1.79  0.030 / 0.040
G10     48.7           61.1                2.8 +/-    0.86       3.2 +/-    0.86  0.030 / 0.040
G11     313.2          16.0                6.4 +/-    2.30      15.6 +/-    2.30  0.070 / 0.170
G14     257.9          64.4                3.7 +/-    1.47       4.0 +/-    1.47  0.110 / 0.210
G18     85.0           41.5                3.4 +/-    0.69       4.8 +/-    0.69  0.110 / 0.210
G21     153.2          20.8                4.7 +/-    1.41      10.1 +/-    1.41  0.110 / 0.260
G24     42.8           15.3                4.2 +/-    0.71      10.4 +/-    0.71  0.100 / 0.340
G27     234.5          19.1                6.0 +/-    1.24      13.4 +/-    1.24  0.100 / 0.310
G31     179.2          25.0                3.9 +/-    0.83       7.6 +/-    0.83  0.070 / 0.210
G32     314.4          75.7                5.8 +/-    0.68       6.0 +/-    0.68  0.160 / 0.190