PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/28-14:27:50
G10     249.0          27.4                6.4 +/-    1.52      11.9 +/-    1.52  0.100 / 0.290
G13     54.6           29.5                5.8 +/-    1.05      10.3 +/-    1.05  0.140 / 0.320
G15     84.8           56.2                6.6 +/-    0.36       7.7 +/-    0.36  0.050 / 0.040
G16     296.8          16.1                3.9 +/-    1.74       9.5 +/-    1.74  0.030 / 0.050
G20     270.2          52.3                8.3 +/-    1.30      10.2 +/-    1.30  0.040 / 0.050
G21     333.1          59.1                5.6 +/-    0.81       6.4 +/-    0.81  0.030 / 0.050
G26     270.4          16.1                4.4 +/-    1.24      10.8 +/-    1.24  0.100 / 0.120
G29     163.2          53.5                8.2 +/-    0.70       9.9 +/-    0.70  0.110 / 0.140