PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/13-20:58:10
G10     288.5          49.5               11.4 +/-    1.35      14.5 +/-    1.35  0.090 / 0.100
G15     48.0           35.0                9.4 +/-    0.77      14.9 +/-    0.77  0.080 / 0.110
G20     337.3          65.2               10.6 +/-    0.34      11.6 +/-    0.34  0.040 / 0.050
G21     63.5           77.2               13.1 +/-    0.66      13.4 +/-    0.66  0.040 / 0.050
G24     106.8          23.4               12.6 +/-    1.86      25.5 +/-    1.86  0.040 / 0.070
G27     308.1          30.5               11.9 +/-    1.31      20.6 +/-    1.31  0.040 / 0.080
G29     168.1          14.8               14.7 +/-    2.20      36.7 +/-    2.20  0.160 / 0.250
G32     207.4          25.1               12.5 +/-    3.22      24.4 +/-    3.22  0.140 / 0.250