PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/23-02:12:30
G08     287.5          23.5               10.3 +/-    1.06      20.9 +/-    1.06  0.030 / 0.070
G10     13.8           63.3               10.9 +/-    0.47      12.0 +/-    0.47  0.030 / 0.040
G14     234.3          51.7               13.4 +/-    0.59      16.6 +/-    0.59  0.040 / 0.080
G18     67.4           49.9               11.6 +/-    1.01      14.7 +/-    1.01  0.040 / 0.080
G21     147.8          35.9               12.2 +/-    0.90      19.0 +/-    0.90  0.040 / 0.130
G24     53.8           24.9                9.7 +/-    0.57      18.9 +/-    0.57  0.040 / 0.100
G27     248.6          29.2               12.1 +/-    1.81      21.6 +/-    1.81  0.090 / 0.110
G32     253.1          69.0               12.2 +/-    0.38      13.0 +/-    0.38  0.090 / 0.120