PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/17-10:27:50
G08     306.3          20.8                4.3 +/-    3.43       9.2 +/-    3.43  0.040 / 0.050
G10     339.5          61.1                4.7 +/-    0.36       5.3 +/-    0.36  0.050 / 0.050
G14     219.2          34.3                7.4 +/-    1.75      12.0 +/-    1.75  0.120 / 0.070
G20     43.3           59.0                5.5 +/-    0.98       6.3 +/-    0.98  0.090 / 0.110
G21     136.9          51.0                6.8 +/-    0.48       8.5 +/-    0.48  0.100 / 0.150
G24     68.9           28.8                3.5 +/-    0.98       6.2 +/-    0.98  0.110 / 0.130
G27     273.8          36.6                7.7 +/-    1.90      11.8 +/-    1.90  0.030 / 0.020
G32     225.3          50.5                7.7 +/-    2.54       9.7 +/-    2.54  0.020 / 0.030