PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/26-17:12:40
G10     261.6          36.4               12.6 +/-    1.60      19.4 +/-    1.60  0.110 / 0.270
G13     44.4           21.2               10.1 +/-    2.29      21.6 +/-    2.29  0.100 / 0.240
G15     64.2           51.2               10.2 +/-    0.59      12.7 +/-    0.59  0.120 / 0.340
G16     283.6          14.3                7.7 +/-    2.08      19.4 +/-    2.08  0.140 / 0.380
G20     290.8          59.1               12.2 +/-    1.21      13.9 +/-    1.21  0.050 / 0.070
G21     351.2          67.8               10.5 +/-    0.92      11.3 +/-    0.92  0.040 / 0.060
G24     126.8          10.8               11.2 +/-   36.10      30.7 +/-   36.10  0.050 / 0.050
G27     320.9          14.2                6.9 +/-    1.31      17.6 +/-    1.31  0.050 / 0.050
G29     166.6          38.3               13.3 +/-    1.00      19.9 +/-    1.00  0.400 / 0.350