PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/14-08:27:40
G03     220.4          60.3                8.2 +/-    1.03       9.3 +/-    1.03  0.110 / 0.340
G07     256.8          16.9                6.2 +/-    2.67      14.6 +/-    2.67  0.090 / 0.330
G09     310.8          30.0                7.3 +/-    5.17      12.7 +/-    5.17  0.040 / 0.070
G16     103.1          65.3                6.7 +/-    0.78       7.2 +/-    0.78  0.040 / 0.060
G22     188.3          43.3                4.7 +/-    2.41       6.5 +/-    2.41  0.040 / 0.070
G23     327.3          57.2                3.7 +/-    0.74       4.3 +/-    0.74  0.080 / 0.060
G26     56.2           46.3              -79.4 +/-   65.52    -105.1 +/-   65.52  0.190 / 0.260
G27     133.7          10.3              -11.8 +/-   27.50     -32.6 +/-   27.50  0.200 / 0.320
G31     58.2           12.0                7.7 +/-    8.71      20.6 +/-    8.71  0.030 / 0.050