PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/10-15:43:00
G03     226.8          66.9               12.4 +/-    0.69      13.4 +/-    0.69  0.120 / 0.260
G09     303.9          18.3                9.2 +/-    1.38      21.0 +/-    1.38  0.120 / 0.310
G14     99.7           16.4               11.3 +/-    2.03      27.2 +/-    2.03  0.050 / 0.070
G16     122.3          60.1               11.9 +/-    0.29      13.5 +/-    0.29  0.050 / 0.050
G22     188.8          51.1               13.5 +/-    0.94      16.8 +/-    0.94  0.030 / 0.030
G23     323.6          53.4               10.7 +/-    0.48      13.0 +/-    0.48  0.040 / 0.040
G26     65.6           49.8               11.1 +/-    0.47      14.0 +/-    0.47  0.050 / 0.060
G31     53.4           17.1               10.3 +/-    3.50      24.4 +/-    3.50  0.040 / 0.060