PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/22-19:58:00
G03     196.8          39.6               15.2 +/-    1.02      22.3 +/-    1.02  0.090 / 0.120
G07     270.4          24.9               14.3 +/-    1.35      28.1 +/-    1.35  0.090 / 0.130
G08     156.9          10.1              -11.9 +/-   35.67     -33.0 +/-   35.67  0.070 / 0.130
G09     317.0          41.1               13.2 +/-    1.02      18.8 +/-    1.02  0.080 / 0.110
G16     59.3           58.4               13.4 +/-    0.60      15.5 +/-    0.60  0.210 / 0.380
G22     182.3          24.3               15.7 +/-    1.77      31.2 +/-    1.77  0.040 / 0.040
G23     356.5          75.6               12.7 +/-    0.99      13.1 +/-    0.99  0.040 / 0.040
G26     44.5           29.1               10.9 +/-    1.48      19.4 +/-    1.48  0.030 / 0.030
G27     120.3          22.0               14.6 +/-    2.14      30.7 +/-    2.14  0.030 / 0.030