PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-00:42:10
G02     43.7           46.2               11.4 +/-    0.62      15.1 +/-    0.62  0.040 / 0.040
G05     106.2          68.7               14.4 +/-    0.71      15.4 +/-    0.71  0.030 / 0.040
G12     189.0          53.8               15.8 +/-    0.81      19.1 +/-    0.81  0.030 / 0.030
G25     276.4          57.9               19.7 +/-    1.28      22.8 +/-    1.28  0.030 / 0.020
G29     314.9          36.1               12.7 +/-    0.94      19.8 +/-    0.94  0.040 / 0.040