PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/02-19:12:40
G02     85.4           13.8                8.9 +/-    2.57      22.9 +/-    2.57  0.130 / 0.110
G05     44.9           30.5                9.1 +/-    1.51      15.9 +/-    1.51  0.090 / 0.150
G13     92.9           33.6               10.8 +/-    1.16      17.7 +/-    1.16  0.140 / 0.210
G15     142.8          41.2               13.3 +/-    1.01      18.9 +/-    1.01  0.120 / 0.230
G20     237.1          26.5               13.9 +/-    2.98      26.2 +/-    2.98  0.090 / 0.110
G21     300.1          37.1               11.0 +/-    2.29      16.8 +/-    2.29  0.060 / 0.090
G25     207.6          23.6               12.1 +/-    1.81      24.4 +/-    1.81  0.030 / 0.020
G26     301.9          19.1                9.5 +/-    1.30      21.3 +/-    1.30  0.030 / 0.020
G29     73.7           86.8               12.3 +/-    0.37      12.4 +/-    0.37  0.110 / 0.120