PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/08-13:58:00
G02     30.5           58.1                7.0 +/-    0.75       8.1 +/-    0.75  0.030 / 0.030
G05     149.0          57.6               10.5 +/-    0.66      12.2 +/-    0.66  0.030 / 0.030
G06     50.8           22.0                4.5 +/-    1.97       9.3 +/-    1.97  0.030 / 0.030
G12     210.7          72.8                4.7 +/-    0.85       4.9 +/-    0.85  0.030 / 0.020
G19     97.5           11.0               11.0 +/-    1.10      30.0 +/-    1.10  0.200 / 0.230
G20     198.5          21.2                7.1 +/-    2.27      15.1 +/-    2.27  0.180 / 0.280
G25     301.5          51.7                6.2 +/-    2.56       7.7 +/-    2.56  0.040 / 0.040
G29     307.3          30.1                3.5 +/-    1.44       6.1 +/-    1.44  0.050 / 0.050