PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/07-21:57:30
G10     244.4          22.8               11.9 +/-    4.28      24.4 +/-    4.28  0.130 / 0.600
G13     60.4           32.4               10.2 +/-    0.69      17.0 +/-    0.69  0.180 / 0.720
G15     102.2          57.6               11.2 +/-    0.65      13.0 +/-    0.65  0.040 / 0.050
G16     303.4          15.2                6.5 +/-    2.46      16.1 +/-    2.46  0.040 / 0.050
G20     260.7          45.7                9.4 +/-    1.57      12.6 +/-    1.57  0.110 / 0.250
G21     324.8          54.2               10.2 +/-    0.93      12.2 +/-    0.93  0.110 / 0.270
G26     275.6          18.0                9.7 +/-    1.78      22.5 +/-    1.78  0.060 / 0.140
G29     160.5          58.5               12.4 +/-    0.94      14.3 +/-    0.94  0.050 / 0.130