PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/15-23:27:40
G02     243.4          76.8               13.7 +/-    0.64      14.0 +/-    0.64  0.040 / 0.050
G05     170.7          17.2               20.2 +/-    1.69      47.6 +/-    1.69  0.050 / 0.060
G06     40.7           57.4               13.5 +/-    0.78      15.7 +/-    0.78  0.060 / 0.150
G12     321.7          52.8               14.1 +/-    0.97      17.2 +/-    0.97  0.060 / 0.140
G17     69.7           24.8               13.0 +/-    0.85      25.4 +/-    0.85  0.030 / 0.050
G19     56.4           39.7               12.9 +/-    0.63      18.9 +/-    0.63  0.030 / 0.040
G24     244.7          34.6               16.9 +/-    1.57      26.9 +/-    1.57  0.190 / 0.380
G25     316.7          11.9                5.5 +/-   23.69      14.8 +/-   23.69  0.170 / 0.350