PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/13-23:27:50
G03     207.3          52.3                8.8 +/-    1.51      10.8 +/-    1.51  0.070 / 0.210
G07     262.8          21.2                7.4 +/-    1.71      15.8 +/-    1.71  0.090 / 0.230
G09     314.2          35.7                6.6 +/-    1.42      10.3 +/-    1.42  0.040 / 0.060
G16     81.1           63.9                7.5 +/-    0.69       8.3 +/-    0.69  0.050 / 0.050
G22     187.3          35.6                9.8 +/-    0.65      15.3 +/-    0.65  0.160 / 0.320
G23     333.2          63.5                6.5 +/-    0.86       7.2 +/-    0.86  0.150 / 0.280
G26     50.2           40.4                6.0 +/-    0.86       8.7 +/-    0.86  0.030 / 0.040
G27     131.9          14.1                9.0 +/-    1.50      23.0 +/-    1.50  0.030 / 0.040