PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/04-23:42:50
G02     51.7           38.9                9.5 +/-    0.54      14.1 +/-    0.54  0.110 / 0.580
G05     75.7           67.0               12.3 +/-    0.42      13.2 +/-    0.42  0.160 / 0.610
G12     188.4          45.3               13.6 +/-    1.74      18.2 +/-    1.74  0.050 / 0.070
G21     264.0          11.3               13.2 +/-    5.26      35.8 +/-    5.26  0.050 / 0.070
G25     254.1          57.2               13.3 +/-    0.71      15.5 +/-    0.71  0.040 / 0.060
G29     323.8          47.7               12.3 +/-    0.92      16.0 +/-    0.92  0.040 / 0.050