PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/24-18:58:10
G10     250.9          28.7               15.1 +/-    1.46      27.1 +/-    1.46  0.040 / 0.040
G13     52.6           28.5               10.7 +/-    1.58      19.4 +/-    1.58  0.030 / 0.040
G15     85.5           57.5               12.6 +/-    0.74      14.6 +/-    0.74  0.090 / 0.190
G16     294.9          15.9                9.1 +/-    2.34      22.2 +/-    2.34  0.090 / 0.150
G20     271.7          52.1               14.2 +/-    2.45      17.4 +/-    2.45  0.040 / 0.040
G21     333.9          59.7               11.4 +/-    0.48      13.0 +/-    0.48  0.040 / 0.040
G26     267.8          15.4               12.0 +/-    2.52      29.5 +/-    2.52  0.130 / 0.540
G29     163.8          50.5               15.2 +/-    0.39      19.1 +/-    0.39  0.130 / 0.490