PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-01:12:30
G02     54.6           36.7               11.8 +/-    1.59      18.2 +/-    1.59  0.040 / 0.050
G05     68.3           65.0               13.0 +/-    0.70      14.2 +/-    0.70  0.050 / 0.060
G12     185.4          38.9               17.6 +/-    0.60      26.1 +/-    0.60  0.230 / 0.370
G13     133.3          10.8               11.2 +/-   30.00      30.8 +/-   30.00  0.230 / 0.300
G21     265.9          12.7               14.7 +/-   20.25      38.5 +/-   20.25  0.030 / 0.020
G25     248.8          55.7               15.4 +/-    2.23      18.2 +/-    2.23  0.030 / 0.030
G29     323.5          47.5               14.0 +/-    0.68      18.2 +/-    0.68  0.050 / 0.060