PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/24-21:12:40
G10     257.5          31.2               17.8 +/-    2.06      30.4 +/-    2.06  0.040 / 0.050
G13     48.2           26.6               13.0 +/-    2.01      24.5 +/-    2.01  0.040 / 0.050
G15     72.0           54.7               14.3 +/-    0.42      17.1 +/-    0.42  0.170 / 0.450
G16     291.7          13.3               14.3 +/-    2.25      37.1 +/-    2.25  0.160 / 0.560
G18     282.4          60.6               15.8 +/-    0.99      17.9 +/-    0.99  0.120 / 0.370
G20     48.2           41.9               13.3 +/-    0.66      18.8 +/-    0.66  0.120 / 0.350
G21     347.5          66.7               13.5 +/-    0.89      14.6 +/-    0.89  0.080 / 0.170
G26     264.5          12.1               16.6 +/-    1.83      44.1 +/-    1.83  0.080 / 0.210
G27     321.2          12.8               12.8 +/-    2.43      33.4 +/-    2.43  0.060 / 0.090
G29     164.7          36.8               16.0 +/-    1.15      24.5 +/-    1.15  0.060 / 0.090