PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/16-16:13:10
G02     247.6          75.4                8.4 +/-    0.65       8.6 +/-    0.65  0.050 / 0.080
G05     171.3          17.8               10.3 +/-    1.20      24.0 +/-    1.20  0.040 / 0.080
G06     39.9           54.8                8.6 +/-    0.67      10.3 +/-    0.67  0.140 / 0.240
G12     321.1          54.1                9.0 +/-    1.06      10.8 +/-    1.06  0.110 / 0.260
G17     70.9           23.6                9.1 +/-    0.58      18.5 +/-    0.58  0.030 / 0.030
G19     60.5           35.4                8.0 +/-    0.42      12.6 +/-    0.42  0.030 / 0.050
G24     243.4          33.1               10.8 +/-    1.77      17.8 +/-    1.77  0.120 / 0.120
G25     316.7          13.6                7.8 +/-    1.66      20.1 +/-    1.66  0.100 / 0.120