PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/28-23:42:40
G08     287.1          23.4               16.3 +/-    1.37      33.2 +/-    1.37  0.050 / 0.120
G10     15.4           63.3               11.8 +/-    0.94      13.0 +/-    0.94  0.060 / 0.130
G14     234.9          51.9               12.1 +/-    2.62      14.9 +/-    2.62  0.040 / 0.030
G18     69.1           48.8               10.9 +/-    0.67      13.9 +/-    0.67  0.040 / 0.040
G21     147.9          34.1               12.1 +/-    0.87      19.5 +/-    0.87  0.070 / 0.100
G24     53.3           24.6               11.0 +/-    1.19      21.7 +/-    1.19  0.080 / 0.110
G27     248.0          28.9               13.2 +/-    1.37      23.7 +/-    1.37  0.110 / 0.110
G32     252.7          67.9                8.5 +/-    0.84       9.1 +/-    0.84  0.100 / 0.120