PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/27-00:12:50
G02     26.8           60.7               10.1 +/-    0.43      11.4 +/-    0.43  0.030 / 0.030
G05     147.0          56.4               13.9 +/-    0.78      16.4 +/-    0.78  0.030 / 0.030
G06     50.4           20.4                8.5 +/-    0.70      18.5 +/-    0.70  0.030 / 0.050
G12     209.6          74.6               12.4 +/-    0.85      12.8 +/-    0.85  0.040 / 0.050
G19     93.8           15.5               11.6 +/-    1.26      28.6 +/-    1.26  0.040 / 0.040
G25     306.1          47.9               12.8 +/-    1.28      16.6 +/-    1.28  0.030 / 0.050
G29     301.9          22.1               10.8 +/-    1.80      22.6 +/-    1.80  0.090 / 0.190