PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/31-23:13:10
G02     360.0          75.0               13.7 +/-    0.56      14.1 +/-    0.56  0.030 / 0.030
G05     160.9          39.1               18.6 +/-    1.24      27.5 +/-    1.24  0.030 / 0.030
G06     43.3           34.8               11.6 +/-    0.79      18.5 +/-    0.79  0.160 / 0.230
G12     298.2          76.9               13.8 +/-    0.76      14.1 +/-    0.76  0.110 / 0.290
G17     89.2           10.5               13.1 +/-    2.61      36.3 +/-    2.61  0.040 / 0.070
G19     78.6           25.9               13.7 +/-    1.77      26.3 +/-    1.77  0.040 / 0.070
G24     224.3          19.2               19.5 +/-    2.25      43.8 +/-    2.25  0.060 / 0.110
G25     316.3          32.8               13.9 +/-    1.53      23.1 +/-    1.53  0.080 / 0.130
G29     289.4          10.8               -0.2 +/-   35.35      -0.4 +/-   35.35  0.070 / 0.400