PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/24-20:12:30
G01     227.5          18.1               13.1 +/-    1.66      30.1 +/-    1.66  0.030 / 0.040
G03     287.5          68.2                7.7 +/-    0.41       8.2 +/-    0.41  0.040 / 0.040
G14     85.1           25.8               10.1 +/-    0.88      19.5 +/-    0.88  0.060 / 0.100
G16     150.2          42.9               13.1 +/-    1.10      18.2 +/-    1.10  0.050 / 0.090
G22     218.7          71.8                9.7 +/-    0.91      10.1 +/-    0.91  0.040 / 0.070
G23     306.5          36.6                8.3 +/-    0.91      12.8 +/-    0.91  0.040 / 0.100
G26     100.7          54.0               10.1 +/-    0.46      12.2 +/-    0.46  0.040 / 0.080
G31     44.5           33.7                6.4 +/-    0.85      10.4 +/-    0.85  0.050 / 0.070