PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/28-19:27:40
G10     271.5          42.1               18.5 +/-    1.43      26.1 +/-    1.43  0.040 / 0.040
G13     39.9           14.4               11.2 +/-    3.90      28.3 +/-    3.90  0.040 / 0.040
G15     55.4           45.7               15.8 +/-    1.19      21.0 +/-    1.19  0.440 / 0.690
G16     275.1          11.4               11.4 +/-   20.97      30.7 +/-   20.97  0.180 / 0.490
G20     307.6          62.5               18.6 +/-    0.61      20.6 +/-    0.61  0.130 / 0.300
G21     10.7           73.4               18.6 +/-    0.68      19.3 +/-    0.68  0.120 / 0.330
G24     119.2          16.1               20.1 +/-    2.10      48.7 +/-    2.10  0.040 / 0.060
G27     317.2          21.4               13.6 +/-    2.11      29.0 +/-    2.11  0.050 / 0.050
G29     167.7          28.3               21.0 +/-    1.36      38.1 +/-    1.36  0.230 / 0.200
G32     204.3          12.8               21.9 +/-    2.09      57.4 +/-    2.09  0.200 / 0.250