PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/12-23:12:50
G05     49.0           18.8                7.8 +/-    0.89      17.6 +/-    0.89  0.150 / 0.470
G10     237.8          13.2               13.7 +/-    3.33      35.6 +/-    3.33  0.160 / 0.350
G13     74.4           37.3                9.6 +/-    0.70      14.6 +/-    0.70  0.100 / 0.280
G15     123.5          53.3               10.8 +/-    0.72      13.1 +/-    0.72  0.090 / 0.260
G16     313.9          12.0                8.6 +/-    3.32      22.9 +/-    3.32  0.070 / 0.180
G18     247.4          43.1               13.9 +/-    2.08      19.3 +/-    2.08  0.070 / 0.140
G20     31.3           63.1                9.9 +/-    0.61      10.9 +/-    0.61  0.030 / 0.030
G26     287.2          19.6               10.1 +/-    1.17      22.4 +/-    1.17  0.030 / 0.030
G29     156.4          66.9               11.7 +/-    1.41      12.6 +/-    1.41  0.040 / 0.050