PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/12-01:12:50
G02     26.8           60.9               11.3 +/-    0.79      12.8 +/-    0.79  0.020 / 0.020
G05     147.4          55.9               14.5 +/-    0.40      17.2 +/-    0.40  0.030 / 0.030
G06     50.0           21.2                9.2 +/-    2.58      19.6 +/-    2.58  0.030 / 0.050
G12     213.6          75.4               12.8 +/-    0.48      13.2 +/-    0.48  0.030 / 0.040
G19     93.4           15.5               11.8 +/-    1.50      29.1 +/-    1.50  0.210 / 0.140
G25     306.8          47.2               11.5 +/-    1.13      15.1 +/-    1.13  0.170 / 0.120
G29     301.6          21.8               10.8 +/-    0.90      22.7 +/-    0.90  0.060 / 0.080