PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/26-17:27:40
G01     238.4          27.5               11.4 +/-    1.31      21.1 +/-    1.31  0.040 / 0.040
G03     308.6          59.6               11.1 +/-    1.06      12.7 +/-    1.06  0.040 / 0.040
G14     71.9           34.7                9.6 +/-    1.96      15.3 +/-    1.96  0.070 / 0.100
G16     157.1          30.2               13.1 +/-    1.37      22.9 +/-    1.37  0.070 / 0.120
G22     266.7          76.2               10.5 +/-    0.85      10.8 +/-    0.85  0.030 / 0.070
G23     297.0          28.7               10.2 +/-    1.83      18.4 +/-    1.83  0.040 / 0.060
G26     121.0          47.8               11.0 +/-    0.97      14.3 +/-    0.97  0.110 / 0.120
G31     41.1           45.0                9.3 +/-    1.00      12.5 +/-    1.00  0.100 / 0.090
G32     88.2           14.4               10.2 +/-    2.01      25.8 +/-    2.01  0.100 / 0.120