PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/16-21:42:30
G10     252.6          29.9               11.3 +/-    1.13      19.8 +/-    1.13  0.160 / 0.710
G13     51.0           27.4                6.9 +/-    1.71      12.8 +/-    1.71  0.180 / 0.840
G15     82.2           57.2                8.6 +/-    0.64      10.0 +/-    0.64  0.100 / 0.110
G16     293.5          15.6                6.9 +/-    4.61      16.9 +/-    4.61  0.080 / 0.120
G20     273.5          52.4               10.3 +/-    0.77      12.7 +/-    0.77  0.040 / 0.060
G21     336.0          61.0                8.4 +/-    0.49       9.5 +/-    0.49  0.040 / 0.050
G26     266.1          14.6               11.2 +/-    1.41      28.1 +/-    1.41  0.090 / 0.180
G29     164.1          47.6                9.4 +/-    0.82      12.2 +/-    0.82  0.070 / 0.190