PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/15-17:27:30
G10     248.9          27.2                8.8 +/-    1.54      16.5 +/-    1.54  0.040 / 0.050
G13     54.7           29.7                7.6 +/-    1.69      13.3 +/-    1.69  0.040 / 0.050
G15     88.2           57.3                9.3 +/-    1.16      10.9 +/-    1.16  0.160 / 0.470
G16     296.9          16.0                7.8 +/-    2.09      19.0 +/-    2.09  0.150 / 0.460
G20     269.1          51.2                9.4 +/-    3.22      11.6 +/-    3.22  0.090 / 0.150
G21     331.6          58.3                7.8 +/-    0.64       9.0 +/-    0.64  0.140 / 0.210
G26     270.0          16.2                9.0 +/-    3.48      21.6 +/-    3.48  0.030 / 0.040
G29     163.2          53.3               10.8 +/-    0.70      13.1 +/-    0.70  0.040 / 0.030