PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/26-21:12:40
G01     227.3          18.4               10.0 +/-    2.52      22.9 +/-    2.52  0.190 / 0.390
G03     291.4          66.8                6.4 +/-    0.71       6.9 +/-    0.71  0.240 / 0.330
G14     85.3           24.6               10.5 +/-    0.77      20.7 +/-    0.77  0.090 / 0.210
G16     149.6          42.4               13.5 +/-    0.78      18.9 +/-    0.78  0.080 / 0.220
G22     221.6          71.8                8.8 +/-    0.91       9.2 +/-    0.91  0.040 / 0.040
G23     304.9          34.3                9.1 +/-    1.00      14.6 +/-    1.00  0.030 / 0.050
G26     105.8          54.4               10.6 +/-    0.34      12.7 +/-    0.34  0.040 / 0.090
G31     43.4           38.0                5.7 +/-    1.18       8.6 +/-    1.18  0.040 / 0.090