PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/26-17:43:00
G02     67.3           28.0               12.6 +/-    2.14      23.0 +/-    2.14  0.090 / 0.190
G05     48.4           53.8               12.7 +/-    0.90      15.3 +/-    0.90  0.110 / 0.210
G12     180.7          18.9               13.4 +/-    1.40      30.3 +/-    1.40  0.080 / 0.110
G13     118.0          22.9               14.9 +/-    1.73      30.6 +/-    1.73  0.090 / 0.080
G15     161.5          19.4               12.9 +/-    1.44      28.8 +/-    1.44  0.090 / 0.120
G21     281.1          24.5               12.3 +/-    2.19      24.3 +/-    2.19  0.090 / 0.140
G25     219.5          41.7               15.1 +/-    1.96      21.3 +/-    1.96  0.040 / 0.040
G29     335.9          65.5               12.5 +/-    0.45      13.6 +/-    0.45  0.040 / 0.040