PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-03:42:40
G10     251.8          27.6               10.9 +/-    1.50      20.1 +/-    1.50  0.110 / 0.270
G13     52.4           29.2                8.6 +/-    1.68      15.3 +/-    1.68  0.100 / 0.220
G15     84.4           57.5               10.1 +/-    0.93      11.8 +/-    0.93  0.040 / 0.040
G16     293.3          15.6                7.1 +/-    1.01      17.4 +/-    1.01  0.030 / 0.040
G20     282.4          60.7                9.1 +/-    1.19      10.3 +/-    1.19  0.110 / 0.130
G21     334.6          60.7                8.0 +/-    0.54       9.0 +/-    0.54  0.070 / 0.140
G26     265.0          15.1                9.5 +/-    1.20      23.6 +/-    1.20  0.030 / 0.030
G29     165.6          49.1               10.5 +/-    0.61      13.5 +/-    0.61  0.030 / 0.030