PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/05-22:58:00
G02     230.3          71.9               11.9 +/-    0.62      12.5 +/-    0.62  0.040 / 0.040
G05     172.9          12.2               20.0 +/-    2.26      53.1 +/-    2.26  0.030 / 0.040
G06     42.7           66.3               10.6 +/-    0.52      11.5 +/-    0.52  0.070 / 0.110
G12     320.2          43.9               10.5 +/-    2.21      14.4 +/-    2.21  0.070 / 0.120
G17     66.4           25.1               11.4 +/-    0.70      22.1 +/-    0.70  0.030 / 0.060
G19     51.7           41.5               11.0 +/-    0.79      15.7 +/-    0.79  0.040 / 0.070
G24     250.0          37.4               13.5 +/-    0.70      20.5 +/-    0.70  0.160 / 0.240