PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/24-02:57:30
G02     40.0           49.4                6.2 +/-    0.68       7.8 +/-    0.68  0.040 / 0.040
G05     121.2          66.8                9.2 +/-    0.56       9.9 +/-    0.56  0.040 / 0.050
G06     57.4           11.2                5.3 +/-    1.54      14.5 +/-    1.54  0.030 / 0.050
G12     193.7          61.0                9.0 +/-    0.66      10.1 +/-    0.66  0.030 / 0.060
G25     287.7          56.1                7.9 +/-    0.64       9.4 +/-    0.64  0.030 / 0.050
G29     311.5          32.3                6.6 +/-    1.64      11.0 +/-    1.64  0.040 / 0.040