PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/28-19:28:00
G10     271.5          42.1               17.0 +/-    0.76      23.9 +/-    0.76  0.100 / 0.230
G13     39.9           14.4               12.4 +/-    2.62      31.4 +/-    2.62  0.110 / 0.190
G15     55.4           45.7               16.1 +/-    0.58      21.5 +/-    0.58  0.040 / 0.050
G16     275.1          11.4               14.9 +/-    2.79      40.2 +/-    2.79  0.040 / 0.050
G20     307.6          62.5               17.7 +/-    0.85      19.7 +/-    0.85  0.120 / 0.280
G21     10.7           73.4               19.3 +/-    0.52      20.0 +/-    0.52  0.090 / 0.210
G24     119.2          16.1               21.7 +/-    2.20      52.5 +/-    2.20  0.150 / 0.590
G27     317.2          21.4               12.1 +/-    1.94      25.7 +/-    1.94  0.170 / 0.720
G29     167.7          28.3               20.5 +/-    1.67      37.3 +/-    1.67  0.170 / 0.400
G32     204.3          12.8               23.0 +/-    3.24      60.5 +/-    3.24  0.120 / 0.340