PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/08-23:43:00
G02     228.8          71.5               11.1 +/-    0.87      11.7 +/-    0.87  0.030 / 0.070
G05     173.1          12.0               19.5 +/-    2.12      52.0 +/-    2.12  0.030 / 0.070
G06     43.2           63.8               11.0 +/-    0.45      12.1 +/-    0.45  0.130 / 0.240
G12     321.2          46.4                9.9 +/-    1.42      13.1 +/-    1.42  0.120 / 0.250
G17     64.3           28.8                9.1 +/-    0.59      16.3 +/-    0.59  0.030 / 0.050
G19     50.0           43.4                9.2 +/-    1.04      12.7 +/-    1.04  0.030 / 0.050
G24     251.7          37.9               12.6 +/-    0.80      19.0 +/-    0.80  0.070 / 0.080