PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/25-19:57:50
G02     275.3          80.4               10.1 +/-    0.74      10.3 +/-    0.74  0.180 / 0.190
G05     168.3          23.3               13.1 +/-    2.02      26.7 +/-    2.02  0.180 / 0.230
G06     39.5           51.0               10.0 +/-    0.72      12.5 +/-    0.72  0.040 / 0.030
G12     320.1          57.7                8.4 +/-    0.71       9.8 +/-    0.71  0.030 / 0.030
G17     76.0           19.1                8.9 +/-    2.53      20.0 +/-    2.53  0.080 / 0.120
G19     65.0           32.7                7.9 +/-    1.82      13.1 +/-    1.82  0.110 / 0.180
G24     237.6          29.9               12.3 +/-    1.83      21.6 +/-    1.83  0.090 / 0.120
G25     317.3          18.4                8.9 +/-    3.79      20.4 +/-    3.79  0.100 / 0.180