PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/14-00:27:50
G02     2.3            74.6                9.0 +/-    0.45       9.3 +/-    0.45  0.020 / 0.020
G05     160.5          39.4               12.4 +/-    0.86      18.2 +/-    0.86  0.020 / 0.020
G06     43.3           35.0                8.8 +/-    1.31      14.0 +/-    1.31  0.050 / 0.060
G12     299.0          76.3               11.0 +/-    0.32      11.3 +/-    0.32  0.040 / 0.050
G17     89.0           11.2               10.4 +/-    2.90      28.3 +/-    2.90  0.130 / 0.250
G19     79.0           25.4               10.4 +/-    1.97      20.1 +/-    1.97  0.110 / 0.320
G24     224.4          19.1               13.5 +/-    2.46      30.4 +/-    2.46  0.080 / 0.080
G25     316.3          32.8                9.0 +/-    1.65      14.8 +/-    1.65  0.080 / 0.060
G29     289.6          11.1               -3.4 +/-   20.95      -9.3 +/-   20.95  0.070 / 0.140