PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/26-16:58:00
G01     252.2          35.7               12.1 +/-    2.07      19.0 +/-    2.07  0.030 / 0.030
G03     316.0          46.7               10.7 +/-    0.80      14.1 +/-    0.80  0.030 / 0.030
G11     240.9          13.2               10.3 +/-    2.02      26.8 +/-    2.02  0.050 / 0.090
G14     58.1           42.8                8.4 +/-    1.93      11.7 +/-    1.93  0.040 / 0.080
G22     304.5          67.4               10.9 +/-    0.45      11.7 +/-    0.45  0.040 / 0.030
G23     286.8          20.4                9.8 +/-    1.55      21.3 +/-    1.55  0.030 / 0.030
G25     40.9           11.1                9.6 +/-    2.65      26.1 +/-    2.65  0.210 / 0.230
G26     136.1          37.6               11.1 +/-    1.39      16.9 +/-    1.39  0.100 / 0.310
G31     41.2           58.3                9.3 +/-    0.49      10.8 +/-    0.49  0.080 / 0.090
G32     77.2           22.6                8.7 +/-    1.07      17.9 +/-    1.07  0.080 / 0.100