PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/28-15:28:00
G10     249.4          26.3                5.9 +/-    1.96      11.2 +/-    1.96  0.110 / 0.450
G13     54.6           30.2                5.8 +/-    1.71      10.1 +/-    1.71  0.110 / 0.440
G15     92.3           58.6                6.3 +/-    1.01       7.2 +/-    1.01  0.030 / 0.030
G16     298.1          15.2                2.5 +/-    1.68       6.3 +/-    1.68  0.030 / 0.040
G20     268.2          50.0                7.4 +/-    2.66       9.3 +/-    2.66  0.030 / 0.040
G21     336.0          61.0                4.8 +/-    0.58       5.4 +/-    0.58  0.030 / 0.040
G26     271.2          15.8                6.2 +/-    3.09      15.1 +/-    3.09  0.120 / 0.120
G29     163.2          50.4                7.8 +/-    0.48       9.8 +/-    0.48  0.070 / 0.140