PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/26-23:27:50
G02     57.4           34.7               11.2 +/-    1.17      17.8 +/-    1.17  0.050 / 0.080
G05     61.1           62.4               11.0 +/-    0.55      12.3 +/-    0.55  0.060 / 0.110
G12     183.6          33.5               12.8 +/-    1.03      20.9 +/-    1.03  0.030 / 0.040
G13     129.9          13.6               13.7 +/-    4.02      35.3 +/-    4.02  0.030 / 0.030
G21     269.2          15.1               11.8 +/-    1.08      29.3 +/-    1.08  0.110 / 0.280
G25     240.5          53.5               11.8 +/-    4.43      14.3 +/-    4.43  0.100 / 0.310
G29     326.0          51.2               11.4 +/-    1.65      14.2 +/-    1.65  0.190 / 0.320