PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/26-18:27:50
G03     238.6          69.9               12.0 +/-    0.72      12.7 +/-    0.72  0.050 / 0.040
G09     300.9          14.5                9.8 +/-    2.59      24.6 +/-    2.59  0.050 / 0.040
G14     96.3           18.3               11.7 +/-    1.42      26.8 +/-    1.42  0.110 / 0.230
G16     133.6          56.2               12.2 +/-    0.62      14.3 +/-    0.62  0.110 / 0.230
G22     195.1          58.2               12.6 +/-    0.63      14.5 +/-    0.63  0.090 / 0.280
G23     317.7          47.7               11.2 +/-    2.30      14.6 +/-    2.30  0.140 / 0.190
G26     74.2           52.7               10.8 +/-    0.47      13.2 +/-    0.47  0.030 / 0.050
G31     50.6           21.7                9.2 +/-    3.09      19.4 +/-    3.09  0.030 / 0.050