PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/28-00:57:40
G02     46.3           43.9                9.6 +/-    1.09      13.2 +/-    1.09  0.040 / 0.060
G05     96.5           68.9               11.7 +/-    0.68      12.5 +/-    0.68  0.040 / 0.090
G12     188.0          50.5               14.5 +/-    1.16      18.2 +/-    1.16  0.040 / 0.050
G25     270.0          58.2               12.4 +/-    0.43      14.3 +/-    0.43  0.030 / 0.040
G29     316.9          38.6               10.3 +/-    1.04      15.3 +/-    1.04  0.040 / 0.060