PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/07-18:27:50
G01     246.1          32.6               10.2 +/-    1.32      16.9 +/-    1.32  0.050 / 0.120
G03     314.3          50.9                7.9 +/-    0.96       9.9 +/-    0.96  0.050 / 0.130
G11     235.8          10.3                9.0 +/-    2.93      25.0 +/-    2.93  0.040 / 0.050
G14     64.3           39.0                7.7 +/-    1.26      11.4 +/-    1.26  0.040 / 0.040
G16     161.7          22.1               10.1 +/-    1.03      21.1 +/-    1.03  0.030 / 0.050
G22     295.6          71.1                8.6 +/-    0.85       9.0 +/-    0.85  0.030 / 0.050
G23     290.6          23.1                9.2 +/-    1.41      18.9 +/-    1.41  0.090 / 0.120
G26     131.4          41.9               10.8 +/-    0.59      15.2 +/-    0.59  0.090 / 0.140
G31     40.3           53.4                7.5 +/-    0.74       9.1 +/-    0.74  0.040 / 0.060
G32     81.6           19.6                8.4 +/-    1.01      18.7 +/-    1.01  0.050 / 0.050