PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/27-22:12:30
G02     30.3           57.8               10.8 +/-    0.82      12.5 +/-    0.82  0.040 / 0.030
G05     141.5          60.5               12.0 +/-    0.82      13.5 +/-    0.82  0.040 / 0.030
G06     53.0           16.2                9.3 +/-    1.98      22.6 +/-    1.98  0.050 / 0.030
G12     196.5          68.7               11.0 +/-    0.24      11.7 +/-    0.24  0.040 / 0.040
G19     97.5           13.1               11.3 +/-    2.11      29.4 +/-    2.11  0.140 / 0.250
G25     300.1          52.0               10.6 +/-    1.85      13.1 +/-    1.85  0.110 / 0.250
G29     305.2          25.3               10.8 +/-    1.33      20.9 +/-    1.33  0.130 / 0.300