PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/15-14:12:30
G01     306.4          33.7                6.8 +/-    1.92      11.1 +/-    1.92  0.040 / 0.050
G10     107.0          39.7                7.2 +/-    0.61      10.5 +/-    0.61  0.030 / 0.060
G11     283.8          27.1               10.3 +/-    1.79      19.1 +/-    1.79  0.020 / 0.030
G14     352.7          67.2                6.7 +/-    0.48       7.2 +/-    0.48  0.030 / 0.030
G22     310.7          29.2                7.3 +/-    0.97      12.9 +/-    0.97  0.080 / 0.120
G25     82.1           17.0                8.5 +/-    2.03      20.0 +/-    2.03  0.110 / 0.130
G31     162.8          67.1                9.9 +/-    0.52      10.7 +/-    0.52  0.090 / 0.080
G32     38.4           50.8                7.1 +/-    1.24       8.8 +/-    1.24  0.080 / 0.110