PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/08-19:43:10
G02     64.7           29.0                8.9 +/-    1.30      15.8 +/-    1.30  0.120 / 0.120
G05     53.2           60.2                9.5 +/-    0.32      10.8 +/-    0.32  0.060 / 0.120
G12     183.8          25.3               11.1 +/-    3.27      21.5 +/-    3.27  0.120 / 0.140
G13     124.5          19.8               13.1 +/-    1.10      28.9 +/-    1.10  0.110 / 0.120
G15     160.5          17.1               13.7 +/-    1.60      32.4 +/-    1.60  0.030 / 0.040
G20     212.0          68.5                8.9 +/-    0.68       9.5 +/-    0.68  0.030 / 0.040
G21     277.0          22.4                9.7 +/-    0.64      20.1 +/-    0.64  0.160 / 0.220
G25     222.8          45.3               10.4 +/-    2.61      13.9 +/-    2.61  0.200 / 0.260
G29     336.7          64.8               11.0 +/-    0.46      12.1 +/-    0.46  0.090 / 0.210