PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/27-08:43:10
G10     259.4          33.0                5.7 +/-    2.08       9.4 +/-    2.08  0.110 / 0.300
G13     46.3           24.3                3.6 +/-    1.86       7.2 +/-    1.86  0.100 / 0.330
G15     67.5           52.7                5.3 +/-    0.64       6.5 +/-    0.64  0.040 / 0.050
G16     286.4          13.9                4.5 +/-    1.21      11.4 +/-    1.21  0.060 / 0.040
G20     35.2           56.2                3.9 +/-    0.94       4.6 +/-    0.94  0.040 / 0.040
G21     349.4          67.5                4.2 +/-    0.96       4.5 +/-    0.96  0.030 / 0.040
G26     258.3          11.3                6.8 +/-    3.02      18.3 +/-    3.02  0.110 / 0.230
G27     321.1          13.6                2.1 +/-    2.58       5.5 +/-    2.58  0.100 / 0.270
G29     166.8          38.6                7.0 +/-    0.91      10.4 +/-    0.91  0.060 / 0.070