PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/28-21:28:00
G08     293.5          23.2               10.4 +/-    1.43      21.1 +/-    1.43  0.080 / 0.090
G10     3.1            63.0               10.1 +/-    0.83      11.1 +/-    0.83  0.090 / 0.110
G14     229.3          46.5               14.5 +/-    1.44      19.2 +/-    1.44  0.050 / 0.100
G18     62.8           51.2               11.3 +/-    0.72      14.0 +/-    0.72  0.050 / 0.120
G21     145.0          38.3               12.0 +/-    0.65      17.9 +/-    0.65  0.050 / 0.110
G24     58.3           27.1               10.8 +/-    0.73      20.1 +/-    0.73  0.050 / 0.110
G27     253.9          32.0               12.7 +/-    1.70      21.3 +/-    1.70  0.030 / 0.040
G32     242.5          64.2               14.6 +/-    0.38      16.0 +/-    0.38  0.030 / 0.040