PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/25-01:42:40
G02     1.0            75.3                7.8 +/-    0.48       8.1 +/-    0.48  0.070 / 0.060
G05     161.0          38.3               12.5 +/-    0.68      18.7 +/-    0.68  0.080 / 0.050
G06     42.7           36.6                7.9 +/-    1.25      12.2 +/-    1.25  0.030 / 0.020
G12     303.6          74.6               11.0 +/-    0.55      11.3 +/-    0.55  0.020 / 0.030
G17     87.6           12.8               10.4 +/-    1.98      27.3 +/-    1.98  0.060 / 0.060
G19     78.1           25.8               10.3 +/-    1.97      19.8 +/-    1.97  0.040 / 0.050
G24     225.6          20.1               13.8 +/-    4.10      30.3 +/-    4.10  0.130 / 0.360
G25     316.6          31.5                9.3 +/-    1.17      15.7 +/-    1.17  0.410 / 0.440