PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/19-15:27:50
G05     49.0           17.8                4.8 +/-    0.80      11.1 +/-    0.80  0.060 / 0.060
G10     237.2          14.1                8.2 +/-    3.70      20.8 +/-    3.70  0.050 / 0.070
G13     73.2           35.9                9.9 +/-    1.10      15.4 +/-    1.10  0.110 / 0.330
G15     125.5          53.2               11.2 +/-    0.64      13.6 +/-    0.64  0.120 / 0.270
G16     313.3          12.6                5.2 +/-    2.58      13.8 +/-    2.58  0.030 / 0.030
G20     249.7          38.3               11.2 +/-    1.59      16.8 +/-    1.59  0.030 / 0.040
G21     316.8          49.7                9.1 +/-    0.89      11.6 +/-    0.89  0.060 / 0.120
G26     287.4          19.6                6.6 +/-    1.64      14.7 +/-    1.64  0.060 / 0.120
G29     155.2          69.6               10.6 +/-    0.77      11.3 +/-    0.77  0.070 / 0.090