PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/22-23:27:50
G10     257.5          31.2               16.5 +/-    1.85      28.3 +/-    1.85  0.120 / 0.400
G13     48.2           26.6               12.4 +/-    1.25      23.4 +/-    1.25  0.190 / 0.400
G15     73.7           55.6               14.9 +/-    0.84      17.7 +/-    0.84  0.080 / 0.120
G16     290.4          13.6               12.4 +/-    2.18      32.0 +/-    2.18  0.070 / 0.110
G18     281.2          59.9               13.6 +/-    1.87      15.5 +/-    1.87  0.050 / 0.030
G20     48.7           41.1               11.5 +/-    1.41      16.4 +/-    1.41  0.030 / 0.030
G21     345.2          66.1               14.2 +/-    0.91      15.3 +/-    0.91  0.150 / 0.150
G26     263.1          12.2               16.5 +/-    2.19      43.8 +/-    2.19  0.150 / 0.160
G27     321.2          12.9               10.1 +/-    3.61      26.5 +/-    3.61  0.110 / 0.280
G29     165.5          38.2               14.8 +/-    0.71      22.1 +/-    0.71  0.110 / 0.310