PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/11-19:12:30
G02     53.2           38.3                9.5 +/-    1.16      14.1 +/-    1.16  0.050 / 0.050
G05     69.5           66.3               10.8 +/-    0.59      11.6 +/-    0.59  0.050 / 0.060
G12     185.8          40.0               13.1 +/-    0.74      19.0 +/-    0.74  0.320 / 0.330
G13     131.4          10.9               10.6 +/-   18.59      29.0 +/-   18.59  0.200 / 0.370
G21     266.5          12.7               10.3 +/-   19.16      27.0 +/-   19.16  0.170 / 0.550
G25     248.4          55.7               11.7 +/-    2.45      13.9 +/-    2.45  0.290 / 0.360
G29     324.8          49.0                9.9 +/-    0.47      12.7 +/-    0.47  0.060 / 0.080