PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/28-02:43:10
G08     318.3          13.4               12.9 +/-   34.15      33.4 +/-   34.15  0.050 / 0.290
G10     306.9          54.3               18.0 +/-   30.61      21.6 +/-   30.61  0.050 / 0.260
G14     212.2          20.1               21.5 +/-   32.47      47.2 +/-   32.47  0.040 / 0.230
G15     45.7           24.6                7.3 +/-    5.10      14.3 +/-    5.10  0.030 / 0.220
G18     9.8            64.9               19.9 +/-   30.36      21.8 +/-   30.36  0.030 / 0.250
G20     76.9           12.2                6.6 +/-   24.06      17.6 +/-   24.06  0.030 / 0.210
G21     114.3          69.2               23.2 +/-   31.47      24.6 +/-   31.47  0.090 / 0.120
G24     91.2           28.9                9.4 +/-    2.62      16.9 +/-    2.62  0.090 / 0.110
G27     290.3          37.3               17.6 +/-   28.44      26.9 +/-   28.44  0.340 / 0.390
G32     214.3          38.3               19.9 +/-   29.33      29.9 +/-   29.33  0.110 / 0.330