PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/07-00:58:10
G02     5.3            73.6                8.9 +/-    0.53       9.3 +/-    0.53  0.020 / 0.030
G05     159.9          40.5               15.1 +/-    1.30      21.8 +/-    1.30  0.020 / 0.030
G06     43.6           34.3                7.4 +/-    1.15      11.9 +/-    1.15  0.130 / 0.400
G12     295.7          76.9                9.3 +/-    0.77       9.5 +/-    0.77  0.130 / 0.420
G17     89.7           10.9               10.1 +/-    2.83      27.7 +/-    2.83  0.040 / 0.060
G19     80.0           24.7               10.5 +/-    1.77      20.7 +/-    1.77  0.050 / 0.050
G24     223.7          18.4               13.3 +/-    2.57      30.4 +/-    2.57  0.030 / 0.040
G25     316.0          33.7               10.5 +/-    1.21      17.0 +/-    1.21  0.030 / 0.040
G29     290.4          11.8               11.3 +/-    2.00      30.3 +/-    2.00  0.050 / 0.120