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               10.0 +/-    0.74      11.6 +/-    0.74  0.030 / 0.040
G05     141.5          60.5               11.3 +/-    0.57      12.7 +/-    0.57  0.040 / 0.040
G06     53.0           16.2                8.7 +/-    0.82      21.0 +/-    0.82  0.040 / 0.040
G12     196.5          68.7               10.2 +/-    0.68      10.9 +/-    0.68  0.030 / 0.040
G19     97.5           13.1               11.9 +/-    1.17      31.0 +/-    1.17  0.040 / 0.040
G25     300.1          52.0                9.5 +/-    0.74      11.7 +/-    0.74  0.040 / 0.060
G29     305.2          25.3               10.7 +/-    2.12      20.8 +/-    2.12  0.110 / 0.170