PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/26-18:57:50
G03     211.2          59.4               13.2 +/-    0.70      15.0 +/-    0.70  0.050 / 0.060
G07     254.4          12.8               14.2 +/-    1.57      37.3 +/-    1.57  0.050 / 0.070
G09     308.4          24.5               10.8 +/-    1.69      21.3 +/-    1.69  0.210 / 0.420
G14     106.8          9.6                14.7 +/-    1.77      41.3 +/-    1.77  0.190 / 0.520
G16     105.3          64.3               12.5 +/-    0.91      13.7 +/-    0.91  0.190 / 0.140
G22     188.0          43.9               12.8 +/-    1.02      17.6 +/-    1.02  0.100 / 0.170
G23     329.1          58.6               11.9 +/-    0.57      13.7 +/-    0.57  0.040 / 0.030
G26     56.2           45.2               10.3 +/-    0.70      13.9 +/-    0.70  0.040 / 0.030
G31     57.7           11.8                9.0 +/-    2.28      24.0 +/-    2.28  0.190 / 0.290