PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-05:12:20
G10     298.2          52.0                7.7 +/-    1.52       9.5 +/-    1.52  0.040 / 0.050
G15     46.1           28.2                3.8 +/-    0.92       6.9 +/-    0.92  0.040 / 0.050
G20     19.1           63.1                6.9 +/-    0.40       7.6 +/-    0.40  0.070 / 0.080
G21     97.2           74.3                7.5 +/-    0.58       7.8 +/-    0.58  0.070 / 0.100
G24     96.3           26.7                7.7 +/-    1.02      14.5 +/-    1.02  0.040 / 0.050
G27     299.5          34.6                8.3 +/-    1.70      13.2 +/-    1.70  0.040 / 0.040
G32     210.6          34.5               10.3 +/-    2.18      16.5 +/-    2.18  0.050 / 0.090