PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-21:27:50
G10     264.8          37.1               17.0 +/-    1.38      26.0 +/-    1.38  0.300 / 0.310
G13     42.8           19.6               10.1 +/-    1.85      22.4 +/-    1.85  0.170 / 0.200
G15     66.9           55.3               13.5 +/-    0.81      16.0 +/-    0.81  0.170 / 0.330
G16     280.2          12.9               14.7 +/-    2.03      38.5 +/-    2.03  0.180 / 0.410
G20     293.6          59.3               13.8 +/-    0.60      15.8 +/-    0.60  0.200 / 0.280
G21     357.8          70.4               13.9 +/-    1.01      14.7 +/-    1.01  0.140 / 0.290
G24     119.9          13.3               18.1 +/-    1.75      47.0 +/-    1.75  0.040 / 0.040
G27     319.9          16.4               12.3 +/-    1.84      29.5 +/-    1.84  0.040 / 0.040
G29     167.8          34.0               18.8 +/-    1.24      30.4 +/-    1.24  0.180 / 0.190