PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/10-09:12:30
G08     296.5          23.0                6.8 +/-    1.43      13.9 +/-    1.43  0.030 / 0.020
G10     2.0            62.7                6.1 +/-    0.64       6.7 +/-    0.64  0.030 / 0.030
G14     226.4          44.0                8.4 +/-    2.18      11.4 +/-    2.18  0.050 / 0.090
G20     60.5           54.0                6.7 +/-    0.52       8.1 +/-    0.52  0.040 / 0.080
G21     144.4          41.8                7.5 +/-    0.49      10.6 +/-    0.49  0.160 / 0.110
G24     58.4           26.1                5.7 +/-    2.29      10.8 +/-    2.29  0.080 / 0.120
G27     260.4          33.6                8.1 +/-    1.92      13.2 +/-    1.92  0.070 / 0.050
G32     236.5          59.0                5.2 +/-    1.77       6.0 +/-    1.77  0.070 / 0.050