PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/24-00:58:00
G02     244.0          77.4                9.9 +/-    0.58      10.1 +/-    0.58  0.040 / 0.060
G05     170.6          17.3               18.3 +/-    1.04      43.0 +/-    1.04  0.070 / 0.070
G06     40.6           58.0                8.9 +/-    0.78      10.3 +/-    0.78  0.050 / 0.150
G12     321.5          52.1               10.8 +/-    1.56      13.3 +/-    1.56  0.060 / 0.150
G17     69.1           25.8                9.5 +/-    0.91      18.3 +/-    0.91  0.100 / 0.100
G19     56.8           39.3                9.3 +/-    0.43      13.7 +/-    0.43  0.120 / 0.120
G24     245.0          34.7               13.4 +/-    1.73      21.5 +/-    1.73  0.030 / 0.040
G25     316.7          11.7                2.9 +/-   21.20       7.8 +/-   21.20  0.030 / 0.030