PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/05-00:58:10
G02     356.4          76.5                7.7 +/-    0.80       7.9 +/-    0.80  0.020 / 0.070
G05     161.8          36.9               14.6 +/-    1.67      22.3 +/-    1.67  0.030 / 0.040
G06     42.4           37.6                7.2 +/-    0.88      10.9 +/-    0.88  0.040 / 0.070
G12     306.6          73.7                8.5 +/-    0.62       8.9 +/-    0.62  0.040 / 0.080
G17     86.7           13.1               11.3 +/-    0.77      29.3 +/-    0.77  0.110 / 0.160
G19     76.7           26.8               10.3 +/-    0.87      19.2 +/-    0.87  0.100 / 0.140
G24     226.5          21.0               13.6 +/-    2.24      29.1 +/-    2.24  0.080 / 0.120
G25     316.9          30.3                7.7 +/-    0.47      13.5 +/-    0.47  0.070 / 0.140