PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/09-15:12:40
G02     54.8           36.3                8.1 +/-    0.64      12.5 +/-    0.64  0.030 / 0.040
G05     72.1           68.1                8.2 +/-    0.52       8.8 +/-    0.52  0.030 / 0.030
G12     183.7          37.4               10.8 +/-    1.41      16.4 +/-    1.41  0.150 / 0.370
G13     130.8          11.3               11.1 +/-   11.01      30.1 +/-   11.01  0.140 / 0.320
G21     267.2          13.3                9.5 +/-    1.84      24.5 +/-    1.84  0.130 / 0.390
G25     246.8          55.4                9.4 +/-    0.55      11.2 +/-    0.55  0.110 / 0.400
G29     324.5          48.6                8.3 +/-    1.11      10.7 +/-    1.11  0.040 / 0.080