PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/27-00:42:50
G02     39.2           50.2               10.3 +/-    1.19      13.0 +/-    1.19  0.040 / 0.040
G05     122.1          66.8               12.0 +/-    0.65      12.9 +/-    0.65  0.030 / 0.040
G06     57.6           10.5               10.3 +/-    2.30      28.4 +/-    2.30  0.030 / 0.030
G12     191.8          60.2               13.3 +/-    0.48      15.1 +/-    0.48  0.020 / 0.030
G25     287.2          56.3                9.7 +/-    1.90      11.4 +/-    1.90  0.130 / 0.300
G29     311.2          31.8               11.2 +/-    1.85      19.0 +/-    1.85  0.240 / 0.380