PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/13-21:12:40
G08     301.3          22.4               13.6 +/-    1.70      28.2 +/-    1.70  0.090 / 0.100
G10     347.8          61.9               13.8 +/-    0.81      15.4 +/-    0.81  0.080 / 0.090
G14     222.4          37.5               20.0 +/-    1.92      30.4 +/-    1.92  0.040 / 0.060
G20     50.9           57.1               14.4 +/-    0.71      16.8 +/-    0.71  0.050 / 0.080
G21     140.7          49.1               16.8 +/-    1.16      21.5 +/-    1.16  0.060 / 0.160
G24     62.6           27.0               13.9 +/-    0.89      25.9 +/-    0.89  0.060 / 0.140
G27     267.1          35.5               18.3 +/-    1.28      28.8 +/-    1.28  0.060 / 0.100
G32     231.0          60.2               17.4 +/-    0.61      19.8 +/-    0.61  0.060 / 0.110