PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/10-18:58:10
G01     229.0          19.5               11.9 +/-    1.84      26.4 +/-    1.84  0.060 / 0.090
G03     290.9          67.9               10.4 +/-    0.88      11.1 +/-    0.88  0.050 / 0.070
G14     83.0           27.4               10.7 +/-    1.39      19.7 +/-    1.39  0.030 / 0.040
G16     150.8          41.2               15.6 +/-    0.61      22.3 +/-    0.61  0.030 / 0.040
G22     222.0          73.0               11.9 +/-    0.95      12.4 +/-    0.95  0.090 / 0.200
G23     305.3          35.8                9.8 +/-    0.72      15.3 +/-    0.72  0.100 / 0.220
G26     103.4          53.4               12.1 +/-    0.68      14.7 +/-    0.68  0.050 / 0.090
G31     44.0           34.9                9.7 +/-    1.27      15.4 +/-    1.27  0.050 / 0.080