PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/18-18:12:40
G01     233.7          23.7               11.2 +/-    1.02      22.5 +/-    1.02  0.040 / 0.050
G03     302.0          63.9                9.0 +/-    1.07       9.9 +/-    1.07  0.030 / 0.040
G14     77.4           31.2               11.0 +/-    1.07      18.8 +/-    1.07  0.060 / 0.110
G16     154.3          35.4               12.8 +/-    0.75      20.2 +/-    0.75  0.050 / 0.090
G22     243.0          75.9               10.7 +/-    0.93      11.0 +/-    0.93  0.040 / 0.050
G23     301.0          32.0                9.6 +/-    1.11      16.1 +/-    1.11  0.050 / 0.060
G26     113.2          50.9               11.7 +/-    1.12      14.6 +/-    1.12  0.110 / 0.170
G31     42.3           40.0                7.9 +/-    1.08      11.5 +/-    1.08  0.120 / 0.150
G32     92.4           11.2               11.0 +/-    2.46      29.9 +/-    2.46  0.040 / 0.050