PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/14-16:43:00
G02     22.2           62.8                8.8 +/-    0.40       9.8 +/-    0.40  0.120 / 0.230
G05     151.5          56.3               10.1 +/-    0.59      11.9 +/-    0.59  0.170 / 0.220
G06     51.3           18.7                7.3 +/-    2.58      16.6 +/-    2.58  0.020 / 0.040
G12     197.7          71.3                9.6 +/-    0.76      10.1 +/-    0.76  0.020 / 0.030
G19     94.1           16.7                9.1 +/-    1.18      21.7 +/-    1.18  0.030 / 0.040
G25     301.9          51.8                9.2 +/-    3.12      11.3 +/-    3.12  0.030 / 0.040
G29     303.3          23.5                7.2 +/-    1.19      14.6 +/-    1.19  0.040 / 0.040