PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/26-22:28:10
G02     35.3           53.6               12.2 +/-    1.14      14.8 +/-    1.14  0.040 / 0.040
G05     131.6          64.7               13.3 +/-    0.53      14.6 +/-    0.53  0.040 / 0.040
G06     55.9           12.3                9.1 +/-    1.48      24.1 +/-    1.48  0.040 / 0.030
G12     191.7          62.8               12.3 +/-    0.80      13.7 +/-    0.80  0.040 / 0.040
G19     101.7          9.8                11.9 +/-    1.59      33.3 +/-    1.59  0.130 / 0.250
G25     292.2          55.2                9.8 +/-    1.66      11.6 +/-    1.66  0.160 / 0.240
G29     308.9          29.2               10.3 +/-    0.85      18.3 +/-    0.85  0.040 / 0.040