PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/11-15:12:40
G02     62.7           29.7                7.9 +/-    1.28      13.9 +/-    1.28  0.050 / 0.030
G05     55.7           60.3                8.6 +/-    0.60       9.7 +/-    0.60  0.020 / 0.030
G12     185.5          30.5               10.9 +/-    2.20      18.9 +/-    2.20  0.120 / 0.180
G13     127.3          17.1               11.7 +/-    1.83      27.6 +/-    1.83  0.080 / 0.170
G15     161.3          14.7               10.6 +/-    1.52      26.4 +/-    1.52  0.040 / 0.040
G20     210.3          61.9               11.0 +/-    0.60      12.3 +/-    0.60  0.040 / 0.040
G21     274.9          22.2                8.6 +/-    2.84      17.9 +/-    2.84  0.110 / 0.110
G25     231.0          49.4               10.1 +/-    3.08      12.8 +/-    3.08  0.120 / 0.080
G29     336.4          63.0                7.6 +/-    0.64       8.4 +/-    0.64  0.070 / 0.080