PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/08-14:12:50
G05     49.5           16.1                5.2 +/-    1.12      12.5 +/-    1.12  0.040 / 0.070
G10     238.0          15.2                4.5 +/-    1.91      11.1 +/-    1.91  0.060 / 0.070
G13     71.6           35.6                9.3 +/-    0.97      14.6 +/-    0.97  0.050 / 0.080
G15     122.1          54.1                9.2 +/-    0.66      11.1 +/-    0.66  0.050 / 0.080
G16     312.7          12.6                3.6 +/-    2.14       9.6 +/-    2.14  0.210 / 0.420
G20     250.9          39.3                8.1 +/-    1.26      11.9 +/-    1.26  0.220 / 0.480
G21     319.0          51.2                6.8 +/-    0.91       8.5 +/-    0.91  0.030 / 0.030
G26     286.9          19.3                3.9 +/-    1.11       8.8 +/-    1.11  0.020 / 0.030
G29     155.6          67.6               10.3 +/-    0.57      11.1 +/-    0.57  0.120 / 0.200