PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/27-15:57:40
G01     285.8          40.9                1.3 +/-    1.50       1.9 +/-    1.50  0.040 / 0.050
G03     313.8          23.7                7.2 +/-    1.54      14.6 +/-    1.54  0.040 / 0.050
G10     122.7          25.9                9.9 +/-    1.09      19.0 +/-    1.09  0.050 / 0.050
G11     264.5          24.4               10.5 +/-    1.71      20.7 +/-    1.71  0.050 / 0.050
G14     27.1           57.7                7.9 +/-    1.84       9.1 +/-    1.84  0.070 / 0.130
G22     314.7          43.9                8.5 +/-    1.10      11.6 +/-    1.10  0.090 / 0.140
G25     63.5           19.1                8.2 +/-    1.64      18.5 +/-    1.64  0.020 / 0.020
G26     153.7          16.7               14.8 +/-    1.67      35.4 +/-    1.67  0.020 / 0.020
G31     98.6           79.6               10.5 +/-    0.22      10.7 +/-    0.22  0.090 / 0.120
G32     55.3           38.6                7.8 +/-    0.88      11.5 +/-    0.88  0.130 / 0.120