PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/20-20:28:10
G10     287.7          49.3               10.3 +/-    1.23      13.1 +/-    1.23  0.100 / 0.120
G15     48.1           35.2                8.4 +/-    0.58      13.4 +/-    0.58  0.080 / 0.130
G20     336.3          65.2                9.0 +/-    0.73       9.8 +/-    0.73  0.050 / 0.050
G21     60.9           77.3               11.8 +/-    0.76      12.1 +/-    0.76  0.040 / 0.060
G24     107.5          23.1               11.2 +/-    1.72      23.0 +/-    1.72  0.040 / 0.080
G27     308.6          30.1               10.9 +/-    1.66      19.0 +/-    1.66  0.040 / 0.070
G29     168.2          15.5               13.0 +/-    2.03      31.9 +/-    2.03  0.090 / 0.160
G32     207.2          24.6               10.9 +/-    2.64      21.5 +/-    2.64  0.060 / 0.180