PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/15-23:27:50
G10     271.3          40.7               12.8 +/-    1.91      18.3 +/-    1.91  0.120 / 0.190
G13     40.2           15.1                9.2 +/-    3.17      22.8 +/-    3.17  0.230 / 0.240
G15     57.5           48.9               10.4 +/-    0.88      13.2 +/-    0.88  0.040 / 0.040
G16     273.7          10.9               12.0 +/-    2.35      32.9 +/-    2.35  0.040 / 0.040
G20     273.2          35.2               17.3 +/-    0.72      27.3 +/-    0.72  0.130 / 0.200
G21     9.6            73.7               11.6 +/-    0.36      12.0 +/-    0.36  0.110 / 0.180
G24     115.5          16.6               13.6 +/-    0.87      32.5 +/-    0.87  0.100 / 0.280
G27     316.9          21.6               10.3 +/-    2.88      21.9 +/-    2.88  0.100 / 0.320
G29     168.7          28.3               13.3 +/-    1.10      24.2 +/-    1.10  0.170 / 0.500
G32     204.4          14.3               15.2 +/-    2.40      38.6 +/-    2.40  0.150 / 0.440