PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/07-20:27:20
G02     53.4           38.5                9.0 +/-    0.69      13.4 +/-    0.69  0.040 / 0.040
G05     69.3           66.0                8.9 +/-    0.41       9.7 +/-    0.41  0.030 / 0.050
G12     182.7          35.9               10.0 +/-    1.71      15.6 +/-    1.71  0.040 / 0.110
G13     132.5          11.2                0.6 +/-   32.54       1.6 +/-   32.54  0.060 / 0.080
G21     266.2          12.6               10.6 +/-    8.16      27.8 +/-    8.16  0.040 / 0.050
G25     245.4          55.6               11.6 +/-    1.21      13.8 +/-    1.21  0.050 / 0.060
G29     323.5          47.6                9.0 +/-    1.10      11.7 +/-    1.10  0.240 / 0.630