PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/11-01:42:10
G02     37.6           51.6                8.4 +/-    0.50      10.4 +/-    0.50  0.020 / 0.040
G05     127.6          65.4               10.8 +/-    0.80      11.8 +/-    0.80  0.030 / 0.040
G06     56.1           12.5                6.3 +/-    1.62      16.8 +/-    1.62  0.030 / 0.060
G12     194.5          63.3               11.2 +/-    1.15      12.3 +/-    1.15  0.040 / 0.050
G25     291.7          55.0                9.3 +/-    0.64      11.0 +/-    0.64  0.030 / 0.040
G29     309.7          30.2                9.0 +/-    0.83      15.8 +/-    0.83  0.040 / 0.040