PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/19-11:42:40
G08     267.9          19.1                3.6 +/-    3.18       8.0 +/-    3.18  0.170 / 0.360
G10     59.2           58.2                4.1 +/-    0.64       4.7 +/-    0.64  0.100 / 0.270
G14     263.7          66.2                3.9 +/-    0.58       4.3 +/-    0.58  0.030 / 0.030
G18     312.4          33.0                2.5 +/-    0.79       4.2 +/-    0.79  0.030 / 0.020
G20     93.9           37.5                5.1 +/-    1.58       7.8 +/-    1.58  0.030 / 0.020
G21     153.8          14.2                4.5 +/-    4.42      11.4 +/-    4.42  0.030 / 0.020
G27     235.0          17.7                3.5 +/-    3.31       8.2 +/-    3.31  0.220 / 0.260
G31     180.0          26.9                4.9 +/-    1.74       9.2 +/-    1.74  0.120 / 0.120
G32     313.6          74.7                4.7 +/-    0.71       4.9 +/-    0.71  0.040 / 0.050