PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/06-23:13:00
G10     275.7          44.0               10.0 +/-    0.68      13.6 +/-    0.68  0.090 / 0.150
G13     38.7           11.6                8.2 +/-    2.24      22.0 +/-    2.24  0.090 / 0.150
G15     52.8           43.0                9.1 +/-    0.40      12.7 +/-    0.40  0.060 / 0.040
G20     312.4          62.8                9.9 +/-    0.51      10.9 +/-    0.51  0.040 / 0.040
G21     21.6           75.3               10.0 +/-    0.77      10.3 +/-    0.77  0.190 / 0.380
G24     115.4          18.3               13.1 +/-    1.37      30.0 +/-    1.37  0.180 / 0.560
G27     315.4          23.8                7.1 +/-    1.83      14.3 +/-    1.83  0.040 / 0.050
G29     167.6          23.7               13.5 +/-    2.57      27.1 +/-    2.57  0.040 / 0.070
G32     205.3          15.0               16.7 +/-    1.83      41.7 +/-    1.83  0.110 / 0.330