PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/01-19:43:20
G05     48.5           19.9               13.3 +/-    0.71      29.3 +/-    0.71  0.070 / 0.090
G10     236.5          11.8               20.3 +/-   29.31      54.4 +/-   29.31  0.090 / 0.080
G13     77.1           37.4               17.9 +/-    0.63      27.2 +/-    0.63  0.150 / 0.250
G15     123.4          52.3               20.8 +/-    1.20      25.5 +/-    1.20  0.150 / 0.270
G18     246.0          42.8               22.1 +/-    0.90      30.8 +/-    0.90  0.040 / 0.050
G20     27.9           66.2               18.5 +/-    0.57      20.0 +/-    0.57  0.040 / 0.050
G21     314.7          48.8               18.2 +/-    1.29      23.3 +/-    1.29  0.070 / 0.150
G26     291.4          19.0               18.7 +/-    1.16      42.2 +/-    1.16  0.080 / 0.120
G29     153.2          66.7               20.7 +/-    0.50      22.3 +/-    0.50  0.050 / 0.120