PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/19-17:57:50
G10     269.5          41.1               12.0 +/-    1.06      17.1 +/-    1.06  0.220 / 0.240
G13     40.7           15.7                9.9 +/-    3.20      24.1 +/-    3.20  0.140 / 0.300
G15     56.3           46.2                9.7 +/-    0.79      12.8 +/-    0.79  0.260 / 0.590
G16     276.6          12.1               10.7 +/-    2.17      28.6 +/-    2.17  0.210 / 0.600
G20     304.9          62.2               10.6 +/-    0.64      11.9 +/-    0.64  0.050 / 0.050
G21     6.7            72.4               11.8 +/-    0.74      12.3 +/-    0.74  0.050 / 0.040
G24     120.9          15.1               12.5 +/-    2.69      31.1 +/-    2.69  0.190 / 0.270
G27     318.1          20.1                8.8 +/-    1.75      19.3 +/-    1.75  0.230 / 0.290
G29     167.6          30.4               11.8 +/-    0.88      20.5 +/-    0.88  0.120 / 0.370
G32     203.9          11.4               -2.3 +/-   40.92      -6.2 +/-   40.92  0.200 / 0.520