PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/22-10:12:30
G02     34.5           54.0                4.4 +/-    0.71       5.2 +/-    0.71  0.040 / 0.050
G05     139.0          63.2                6.8 +/-    0.86       7.6 +/-    0.86  0.040 / 0.050
G06     54.0           16.2                2.6 +/-    1.32       6.3 +/-    1.32  0.150 / 0.200
G12     198.5          66.8                3.7 +/-    0.91       3.9 +/-    0.91  0.120 / 0.290
G19     100.6          10.2                4.8 +/-    2.23      13.4 +/-    2.23  0.030 / 0.040
G25     286.5          59.2                3.0 +/-    1.27       3.5 +/-    1.27  0.030 / 0.040
G29     309.4          30.8                1.7 +/-    1.35       2.9 +/-    1.35  0.030 / 0.030