PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/25-10:57:50
G08     277.3          22.0                8.6 +/-    1.37      17.9 +/-    1.37  0.100 / 0.150
G10     40.9           61.2                5.4 +/-    0.85       6.1 +/-    0.85  0.140 / 0.150
G14     246.4          59.6                8.1 +/-    0.64       9.3 +/-    0.64  0.020 / 0.020
G18     316.0          24.8                5.0 +/-    2.11       9.7 +/-    2.11  0.030 / 0.020
G20     83.9           43.5                6.2 +/-    1.70       8.5 +/-    1.70  0.020 / 0.020
G21     151.7          23.4                6.6 +/-    1.82      13.4 +/-    1.82  0.030 / 0.020
G24     44.3           16.1                4.5 +/-    4.02      10.8 +/-    4.02  0.040 / 0.040
G27     242.5          23.8                8.4 +/-    1.90      16.9 +/-    1.90  0.040 / 0.040
G31     181.7          17.9                3.5 +/-    3.43       8.1 +/-    3.43  0.090 / 0.090
G32     276.6          72.8                6.7 +/-    0.24       7.0 +/-    0.24  0.080 / 0.100