PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/11-17:13:10
G05     49.5           16.5                7.6 +/-    1.81      18.3 +/-    1.81  0.080 / 0.160
G10     238.5          17.2               11.7 +/-    1.39      27.5 +/-    1.39  0.140 / 0.170
G13     69.6           34.6               10.4 +/-    0.70      16.7 +/-    0.70  0.040 / 0.080
G15     116.0          54.8               10.8 +/-    0.95      12.9 +/-    0.95  0.050 / 0.060
G16     310.0          14.1                7.4 +/-    2.74      18.8 +/-    2.74  0.130 / 0.450
G20     252.9          41.6               10.8 +/-    2.64      15.2 +/-    2.64  0.110 / 0.380
G21     317.1          49.0                9.4 +/-    0.78      12.0 +/-    0.78  0.030 / 0.030
G26     283.5          19.7                6.8 +/-    1.71      15.1 +/-    1.71  0.020 / 0.030
G29     156.5          69.0               11.9 +/-    0.70      12.6 +/-    0.70  0.070 / 0.120