PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/09-17:12:30
G01     227.6          18.1               11.4 +/-    2.48      26.2 +/-    2.48  0.030 / 0.040
G03     282.4          70.4               10.0 +/-    0.66      10.5 +/-    0.66  0.040 / 0.040
G14     84.4           26.9                8.6 +/-    2.06      16.0 +/-    2.06  0.050 / 0.110
G16     148.0          43.8               11.7 +/-    2.05      16.1 +/-    2.05  0.090 / 0.100
G22     212.2          71.0               10.9 +/-    0.67      11.5 +/-    0.67  0.040 / 0.050
G23     307.6          38.2                9.5 +/-    1.32      14.2 +/-    1.32  0.050 / 0.070
G26     98.4           53.7               10.7 +/-    0.57      13.0 +/-    0.57  0.090 / 0.150
G31     45.0           32.4                8.2 +/-    1.54      13.7 +/-    1.54  0.170 / 0.210