PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/27-00:27:50
G02     33.3           55.4               10.3 +/-    1.03      12.3 +/-    1.03  0.020 / 0.030
G05     137.0          62.3               12.9 +/-    0.39      14.3 +/-    0.39  0.020 / 0.030
G06     53.9           15.3                9.0 +/-    2.39      22.3 +/-    2.39  0.030 / 0.030
G12     197.5          67.6               12.4 +/-    0.32      13.2 +/-    0.32  0.030 / 0.030
G19     99.3           11.4               12.3 +/-    2.67      33.4 +/-    2.67  0.110 / 0.180
G25     298.1          52.7               12.5 +/-    2.18      15.3 +/-    2.18  0.180 / 0.210
G29     306.6          26.8               10.9 +/-    1.40      20.4 +/-    1.40  0.050 / 0.050