PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/03-16:28:00
G02     307.9          80.0                5.9 +/-    0.85       5.9 +/-    0.85  0.050 / 0.110
G05     166.5          30.0                9.3 +/-    0.68      16.3 +/-    0.68  0.060 / 0.110
G06     41.5           40.5                6.3 +/-    0.53       9.1 +/-    0.53  0.090 / 0.250
G12     314.1          74.2                6.2 +/-    1.00       6.4 +/-    1.00  0.090 / 0.250
G17     84.6           11.2                8.3 +/-    3.40      22.6 +/-    3.40  0.030 / 0.030
G19     69.9           32.3                7.0 +/-    0.45      11.7 +/-    0.45  0.030 / 0.030
G24     228.6          24.2                9.5 +/-    1.42      19.0 +/-    1.42  0.080 / 0.150
G25     317.5          27.3                4.3 +/-    1.48       8.0 +/-    1.48  0.080 / 0.180