PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/27-07:42:40
G10     258.6          33.7                6.2 +/-    1.83      10.1 +/-    1.83  0.040 / 0.040
G13     46.4           23.7                4.8 +/-    2.14       9.8 +/-    2.14  0.030 / 0.040
G15     68.9           53.4                7.4 +/-    0.57       8.9 +/-    0.57  0.080 / 0.310
G16     292.3          13.3                5.1 +/-    1.48      13.3 +/-    1.48  0.110 / 0.190
G20     283.3          56.3                7.4 +/-    2.35       8.7 +/-    2.35  0.080 / 0.110
G21     352.9          67.8                6.5 +/-    0.75       6.9 +/-    0.75  0.060 / 0.090
G26     263.9          11.7                5.9 +/-    5.37      15.9 +/-    5.37  0.100 / 0.290
G27     322.3          10.4              -14.7 +/-    9.83     -40.5 +/-    9.83  0.120 / 0.290
G29     163.3          34.9                7.5 +/-    0.75      12.0 +/-    0.75  0.260 / 0.160