PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/13-20:28:10
G10     271.3          41.9               11.4 +/-    1.52      16.1 +/-    1.52  0.160 / 0.220
G13     40.0           14.5                9.5 +/-    2.53      23.8 +/-    2.53  0.110 / 0.200
G15     56.1           46.6               10.2 +/-    0.68      13.4 +/-    0.68  0.040 / 0.040
G16     275.5          11.5                9.5 +/-    6.82      25.7 +/-    6.82  0.040 / 0.050
G20     306.4          62.2               11.1 +/-    1.01      12.3 +/-    1.01  0.140 / 0.560
G21     9.7            73.3               12.3 +/-    0.95      12.8 +/-    0.95  0.110 / 0.370
G24     119.2          16.1               13.4 +/-    1.51      32.4 +/-    1.51  0.230 / 0.700
G27     317.4          21.2               10.1 +/-    4.70      21.6 +/-    4.70  0.210 / 0.720
G29     167.6          28.3               12.9 +/-    0.89      23.3 +/-    0.89  0.040 / 0.060
G32     204.4          12.3               15.0 +/-    4.95      39.8 +/-    4.95  0.040 / 0.050