PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/27-06:57:30
G05     52.0           9.5                 3.3 +/-    1.79       9.2 +/-    1.79  0.040 / 0.040
G10     241.5          19.4                5.9 +/-    2.01      13.2 +/-    2.01  0.030 / 0.050
G13     65.2           34.2                5.3 +/-    0.95       8.6 +/-    0.95  0.060 / 0.120
G15     107.9          56.3                7.5 +/-    0.76       8.8 +/-    0.76  0.070 / 0.110
G16     311.5          12.1                4.1 +/-    2.96      10.8 +/-    2.96  0.130 / 0.240
G20     256.4          43.2                7.7 +/-    2.07      10.7 +/-    2.07  0.140 / 0.290
G21     324.6          54.5                5.2 +/-    0.48       6.3 +/-    0.48  0.130 / 0.320
G26     283.2          18.1                5.8 +/-    1.32      13.4 +/-    1.32  0.170 / 0.320
G29     155.9          57.2                8.7 +/-    0.41      10.2 +/-    0.41  0.200 / 0.310