PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/13-17:13:10
G10     305.5          55.0                8.4 +/-    0.66      10.0 +/-    0.66  0.100 / 0.080
G15     45.5           22.2                5.9 +/-    0.69      12.3 +/-    0.69  0.080 / 0.070
G20     8.3            64.4                8.6 +/-    0.32       9.4 +/-    0.32  0.040 / 0.050
G21     107.1          71.4               10.1 +/-    0.70      10.6 +/-    0.70  0.040 / 0.040
G24     95.3           28.1                9.3 +/-    2.58      17.0 +/-    2.58  0.040 / 0.030
G27     296.4          36.1               10.5 +/-    1.46      16.3 +/-    1.46  0.040 / 0.040
G32     211.4          37.1               12.8 +/-    1.93      19.5 +/-    1.93  0.070 / 0.140