PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/03-21:57:30
G10     300.4          53.5               11.0 +/-    1.53      13.3 +/-    1.53  0.050 / 0.040
G15     46.1           28.1               10.0 +/-    1.35      18.2 +/-    1.35  0.050 / 0.040
G20     356.4          65.1               11.8 +/-    0.66      12.9 +/-    0.66  0.060 / 0.070
G21     96.8           74.3               13.0 +/-    0.30      13.4 +/-    0.30  0.060 / 0.080
G24     98.2           27.0               12.4 +/-    0.91      23.2 +/-    0.91  0.070 / 0.110
G27     300.1          34.6               10.4 +/-    1.05      16.6 +/-    1.05  0.080 / 0.120
G32     210.4          32.8               14.5 +/-    0.92      24.0 +/-    0.92  0.060 / 0.100