PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/30-16:57:50
G10     262.2          36.9               11.1 +/-    1.08      17.1 +/-    1.08  0.140 / 0.270
G13     44.0           20.7                9.6 +/-    1.90      20.8 +/-    1.90  0.150 / 0.320
G15     63.3           50.6               10.4 +/-    0.54      13.1 +/-    0.54  0.040 / 0.050
G20     292.1          59.5               10.4 +/-    0.86      11.8 +/-    0.86  0.040 / 0.060
G21     352.5          68.2               10.1 +/-    1.01      10.8 +/-    1.01  0.150 / 0.260
G24     126.3          11.1                6.5 +/-   35.95      17.6 +/-   35.95  0.110 / 0.290
G26     257.4          10.2                9.6 +/-    1.73      26.7 +/-    1.73  0.040 / 0.070
G27     320.7          14.8                7.4 +/-    3.03      18.6 +/-    3.03  0.030 / 0.070
G29     166.7          37.7               12.8 +/-    1.35      19.4 +/-    1.35  0.070 / 0.080