PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/27-17:27:50
G10     270.9          41.9               12.9 +/-    1.09      18.2 +/-    1.09  0.270 / 0.290
G13     40.1           14.8                9.7 +/-    3.57      24.2 +/-    3.57  0.240 / 0.190
G15     55.0           44.8               12.0 +/-    1.20      16.2 +/-    1.20  0.340 / 0.500
G16     275.4          11.7                6.7 +/-   21.36      17.9 +/-   21.36  0.360 / 0.550
G20     307.9          62.7               13.0 +/-    0.63      14.4 +/-    0.63  0.150 / 0.270
G21     10.6           73.2               14.7 +/-    0.43      15.2 +/-    0.43  0.110 / 0.240
G24     119.8          15.8               13.1 +/-    2.85      32.0 +/-    2.85  0.060 / 0.040
G27     317.5          21.1               10.2 +/-    2.46      22.0 +/-    2.46  0.050 / 0.040
G29     167.8          29.2               13.4 +/-    1.40      23.9 +/-    1.40  0.140 / 0.470
G32     204.1          12.7               12.6 +/-    4.45      33.1 +/-    4.45  0.140 / 0.430