PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/10-09:27:30
G08     289.4          23.4                6.4 +/-    1.18      12.9 +/-    1.18  0.030 / 0.030
G10     17.0           62.8                6.8 +/-    0.93       7.5 +/-    0.93  0.030 / 0.040
G14     232.5          50.2                8.2 +/-    2.34      10.3 +/-    2.34  0.060 / 0.120
G18     317.7          14.6                2.8 +/-    1.76       7.1 +/-    1.76  0.050 / 0.120
G20     70.1           50.2                6.8 +/-    1.03       8.6 +/-    1.03  0.080 / 0.110
G21     147.8          35.1                7.3 +/-    0.89      11.5 +/-    0.89  0.080 / 0.120
G24     52.3           23.0                4.8 +/-    2.18       9.9 +/-    2.18  0.030 / 0.030
G27     252.9          30.3                9.1 +/-    1.77      15.9 +/-    1.77  0.030 / 0.020
G32     247.1          64.8                6.4 +/-    0.31       7.0 +/-    0.31  0.080 / 0.130