PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/31-04:27:30
G10     264.0          36.2               12.2 +/-    1.01      18.9 +/-    1.01  0.100 / 0.290
G13     43.4           20.6                5.8 +/-    1.41      12.6 +/-    1.41  0.150 / 0.330
G15     62.9           51.2                9.2 +/-    0.80      11.4 +/-    0.80  0.050 / 0.040
G16     280.8          13.0               12.1 +/-    0.85      31.6 +/-    0.85  0.040 / 0.040
G20     316.6          67.0                7.0 +/-    0.81       7.5 +/-    0.81  0.140 / 0.160
G21     354.8          69.7                8.3 +/-    1.23       8.8 +/-    1.23  0.110 / 0.150
G24     122.3          12.6                4.1 +/-    1.65      10.8 +/-    1.65  0.080 / 0.090
G27     319.7          16.8                9.7 +/-    1.77      23.1 +/-    1.77  0.090 / 0.090
G29     168.0          34.9                7.4 +/-    0.88      11.8 +/-    0.88  0.080 / 0.240