PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/06-20:58:10
G10     272.0          42.3               10.4 +/-    1.46      14.6 +/-    1.46  0.240 / 0.630
G13     39.8           14.1                6.7 +/-    3.38      17.0 +/-    3.38  0.300 / 0.480
G15     55.8           46.6                7.7 +/-    1.05      10.2 +/-    1.05  0.040 / 0.040
G16     275.0          11.2                8.3 +/-   13.43      22.4 +/-   13.43  0.040 / 0.040
G20     307.3          62.3                9.6 +/-    0.57      10.7 +/-    0.57  0.150 / 0.340
G21     11.3           73.6               10.2 +/-    0.84      10.6 +/-    0.84  0.100 / 0.330
G24     118.6          16.4               11.1 +/-    2.26      26.7 +/-    2.26  0.280 / 0.210
G27     317.1          21.6                9.3 +/-    2.29      19.7 +/-    2.29  0.170 / 0.200
G29     167.7          27.6               11.4 +/-    0.99      21.1 +/-    0.99  0.040 / 0.060
G32     204.5          12.7               13.6 +/-    1.77      35.6 +/-    1.77  0.040 / 0.050