PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/26-18:42:30
G03     221.9          65.4               12.2 +/-    0.85      13.3 +/-    0.85  0.060 / 0.070
G09     304.8          19.4               10.1 +/-    1.56      22.5 +/-    1.56  0.040 / 0.050
G14     101.7          14.0               13.5 +/-    2.18      34.4 +/-    2.18  0.110 / 0.330
G16     121.5          61.2               13.0 +/-    0.38      14.6 +/-    0.38  0.130 / 0.370
G22     190.9          51.1               13.0 +/-    0.64      16.2 +/-    0.64  0.140 / 0.220
G23     323.2          53.0               12.1 +/-    0.51      14.7 +/-    0.51  0.250 / 0.180
G26     64.0           49.6               11.1 +/-    0.74      14.1 +/-    0.74  0.040 / 0.040
G31     54.0           16.6                8.7 +/-    2.03      20.8 +/-    2.03  0.040 / 0.050