PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/23-00:43:00
G02     224.7          69.6               12.7 +/-    0.60      13.4 +/-    0.60  0.030 / 0.030
G05     174.0          10.1               -8.2 +/-   10.80     -22.8 +/-   10.80  0.030 / 0.030
G06     45.1           66.8               12.1 +/-    0.48      13.1 +/-    0.48  0.050 / 0.040
G12     320.6          43.4               11.4 +/-    0.43      15.6 +/-    0.43  0.040 / 0.050
G17     61.7           31.1               12.0 +/-    0.68      20.6 +/-    0.68  0.130 / 0.000
G19     47.6           44.7               12.6 +/-    1.33      17.1 +/-    1.33  0.050 / 0.110
G24     255.0          39.0               14.2 +/-    1.33      21.0 +/-    1.33  0.060 / 0.110