PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/15-23:12:20
G10     298.4          52.9                8.8 +/-    1.36      10.7 +/-    1.36  0.040 / 0.030
G15     46.2           28.6                7.3 +/-    1.15      13.1 +/-    1.15  0.050 / 0.030
G20     352.0          65.2                9.0 +/-    0.42       9.8 +/-    0.42  0.060 / 0.150
G21     92.5           75.0               10.6 +/-    0.44      10.9 +/-    0.44  0.060 / 0.080
G24     99.3           26.5                9.7 +/-    0.93      18.4 +/-    0.93  0.070 / 0.100
G27     301.6          34.0                8.5 +/-    0.93      13.8 +/-    0.93  0.100 / 0.110
G32     210.0          31.1               10.4 +/-    1.02      17.8 +/-    1.02  0.060 / 0.060