PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/27-14:27:40
G02     13.2           68.4                6.3 +/-    0.87       6.7 +/-    0.87  0.030 / 0.060
G05     159.9          45.7                9.5 +/-    1.01      12.7 +/-    1.01  0.060 / 0.060
G06     46.1           27.0                5.3 +/-    1.58       9.9 +/-    1.58  0.130 / 0.440
G12     248.3          80.6                6.0 +/-    0.54       6.1 +/-    0.54  0.200 / 0.420
G19     87.6           17.0                8.2 +/-    1.76      19.5 +/-    1.76  0.020 / 0.030
G24     219.8          13.5                9.4 +/-    1.56      24.3 +/-    1.56  0.030 / 0.030
G25     312.5          40.3                6.3 +/-    2.15       9.1 +/-    2.15  0.070 / 0.120
G29     295.5          16.7                4.7 +/-    2.52      11.3 +/-    2.52  0.070 / 0.120