PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/24-19:42:40
G03     198.2          42.7               13.7 +/-    1.22      19.0 +/-    1.22  0.070 / 0.120
G07     267.7          23.0                9.7 +/-    1.82      19.9 +/-    1.82  0.080 / 0.090
G09     315.9          38.4                9.7 +/-    1.06      14.6 +/-    1.06  0.030 / 0.040
G16     64.3           60.5               12.4 +/-    0.66      14.0 +/-    0.66  0.040 / 0.040
G22     183.1          27.2               14.6 +/-    1.78      27.1 +/-    1.78  0.070 / 0.160
G23     350.0          73.0               11.1 +/-    0.51      11.5 +/-    0.51  0.070 / 0.140
G26     45.5           31.8                9.3 +/-    0.33      15.7 +/-    0.33  0.040 / 0.070
G27     122.9          19.9               15.7 +/-    1.38      34.7 +/-    1.38  0.040 / 0.070