PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/16-20:12:30
G03     310.6          56.1                8.9 +/-    2.27      10.5 +/-    2.27  0.040 / 0.030
G14     71.5           34.4                9.1 +/-    1.38      14.6 +/-    1.38  0.050 / 0.040
G16     159.3          28.0               10.7 +/-    2.83      19.6 +/-    2.83  0.030 / 0.050
G22     277.5          74.6               10.0 +/-    0.52      10.3 +/-    0.52  0.060 / 0.050
G23     295.3          26.6               10.6 +/-    2.20      20.0 +/-    2.20  0.100 / 0.180
G26     124.6          46.7               11.0 +/-    0.33      14.5 +/-    0.33  0.090 / 0.140
G31     40.5           47.5                7.4 +/-    0.74       9.7 +/-    0.74  0.060 / 0.090
G32     86.8           15.9                9.7 +/-    2.20      23.7 +/-    2.20  0.050 / 0.110