PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/08-14:13:00
G03     211.4          57.9                9.2 +/-    0.72      10.6 +/-    0.72  0.110 / 0.380
G07     256.3          14.3                7.9 +/-    0.73      20.0 +/-    0.73  0.140 / 0.430
G09     309.9          27.3                4.7 +/-    1.78       8.8 +/-    1.78  0.100 / 0.080
G14     107.9          10.2                7.5 +/-    2.54      20.9 +/-    2.54  0.100 / 0.110
G16     94.0           63.9                7.9 +/-    0.80       8.7 +/-    0.80  0.030 / 0.050
G22     184.6          39.1                8.9 +/-    2.06      13.2 +/-    2.06  0.030 / 0.060
G23     335.9          63.4                7.1 +/-    0.59       7.8 +/-    0.59  0.040 / 0.050
G26     53.1           42.1                8.3 +/-    0.74      11.7 +/-    0.74  0.040 / 0.050
G27     134.4          10.3              -11.4 +/-   27.11     -31.6 +/-   27.11  0.040 / 0.050