PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/17-03:13:10
G08     304.4          21.0                8.8 +/-    1.75      19.0 +/-    1.75  0.110 / 0.070
G10     343.8          61.5                9.2 +/-    0.58      10.3 +/-    0.58  0.060 / 0.090
G14     221.6          33.9               13.0 +/-    1.39      21.1 +/-    1.39  0.030 / 0.050
G20     17.3           64.9               11.3 +/-    1.24      12.3 +/-    1.24  0.040 / 0.050
G21     139.6          52.3               10.9 +/-    0.98      13.3 +/-    0.98  0.080 / 0.140
G24     66.1           28.6                6.9 +/-    1.99      12.4 +/-    1.99  0.080 / 0.150
G27     267.4          36.1               11.6 +/-    1.29      18.0 +/-    1.29  0.060 / 0.080
G32     229.5          60.0               11.1 +/-    2.23      12.6 +/-    2.23  0.040 / 0.110