PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-00:12:30
G02     32.1           56.4               10.7 +/-    0.47      12.6 +/-    0.47  0.040 / 0.040
G05     139.2          61.3               14.2 +/-    1.16      15.9 +/-    1.16  0.030 / 0.040
G06     53.2           16.2                9.3 +/-    2.35      22.6 +/-    2.35  0.030 / 0.040
G12     198.8          68.9               13.4 +/-    0.70      14.3 +/-    0.70  0.030 / 0.040
G19     98.2           12.2               12.1 +/-    0.93      32.3 +/-    0.93  0.050 / 0.060
G25     299.7          52.0               11.6 +/-    0.93      14.2 +/-    0.93  0.060 / 0.060
G29     305.8          25.9               11.3 +/-    2.57      21.7 +/-    2.57  0.140 / 0.320