PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/02-14:43:00
G02     230.8          71.6               12.8 +/-    1.04      13.4 +/-    1.04  0.140 / 0.450
G05     176.0          10.3               -4.5 +/-   28.15     -12.4 +/-   28.15  0.150 / 0.450
G06     42.3           64.4               11.3 +/-    0.52      12.3 +/-    0.52  0.030 / 0.070
G12     321.3          47.2               10.5 +/-    1.52      13.7 +/-    1.52  0.040 / 0.050
G17     69.2           22.7               10.0 +/-    0.91      20.7 +/-    0.91  0.080 / 0.120
G19     54.8           39.7               10.1 +/-    0.59      14.8 +/-    0.59  0.090 / 0.110
G24     252.0          37.2               11.5 +/-    0.97      17.5 +/-    0.97  0.030 / 0.030
G25     316.1          11.1               -4.5 +/-   35.80     -12.3 +/-   35.80  0.030 / 0.040