PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/19-16:57:50
G05     52.5           10.9                8.8 +/-    0.85      24.0 +/-    0.85  0.180 / 0.300
G10     244.0          22.8               12.2 +/-    0.78      25.1 +/-    0.78  0.180 / 0.320
G13     60.9           32.4                8.7 +/-    0.67      14.5 +/-    0.67  0.160 / 0.770
G15     100.5          57.1               10.8 +/-    0.91      12.6 +/-    0.91  0.180 / 0.740
G16     302.9          15.6                5.8 +/-    3.42      14.3 +/-    3.42  0.040 / 0.070
G20     261.4          47.2               12.2 +/-    0.88      16.0 +/-    0.88  0.040 / 0.050
G21     324.8          54.1                9.5 +/-    0.84      11.5 +/-    0.84  0.030 / 0.040
G26     275.9          18.1                9.1 +/-    1.56      20.9 +/-    1.56  0.030 / 0.040
G29     160.8          60.4               12.4 +/-    0.85      14.0 +/-    0.85  0.120 / 0.260