PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/13-11:57:10
G02     37.1           51.2                4.4 +/-    0.80       5.5 +/-    0.80  0.030 / 0.030
G05     141.1          63.8                6.6 +/-    0.47       7.3 +/-    0.47  0.020 / 0.030
G06     55.3           12.4                0.6 +/-    1.73       1.5 +/-    1.73  0.030 / 0.040
G12     188.3          61.9                8.2 +/-    0.58       9.1 +/-    0.58  0.040 / 0.030
G25     291.9          55.1                5.3 +/-    1.52       6.3 +/-    1.52  0.050 / 0.100
G29     308.9          29.5                3.0 +/-    1.30       5.3 +/-    1.30  0.130 / 0.090