PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/06-19:12:50
G05     46.3           24.1                8.8 +/-    2.02      17.5 +/-    2.02  0.060 / 0.090
G13     83.6           35.1               10.2 +/-    1.23      16.2 +/-    1.23  0.070 / 0.080
G15     135.4          47.3                9.9 +/-    0.94      12.9 +/-    0.94  0.080 / 0.090
G20     242.6          32.4               10.1 +/-    2.71      16.9 +/-    2.71  0.080 / 0.110
G21     306.6          41.7                8.9 +/-    0.77      12.6 +/-    0.77  0.320 / 0.440
G25     203.6          17.4               10.9 +/-    5.34      25.5 +/-    5.34  0.220 / 0.380
G26     294.6          20.1                7.9 +/-    2.45      17.3 +/-    2.45  0.030 / 0.060
G29     141.5          80.8                8.8 +/-    0.64       8.9 +/-    0.64  0.040 / 0.050