PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/11-22:42:50
G02     86.8           12.3               13.9 +/-    1.01      36.7 +/-    1.01  0.060 / 0.090
G05     45.1           31.9               12.2 +/-    0.68      20.6 +/-    0.68  0.050 / 0.080
G13     94.5           35.6               16.2 +/-    1.02      25.5 +/-    1.02  0.090 / 0.210
G15     142.3          41.6               19.2 +/-    1.25      27.2 +/-    1.25  0.100 / 0.250
G18     234.6          30.7               16.1 +/-    1.61      27.7 +/-    1.61  0.170 / 0.360
G20     14.0           78.2               13.7 +/-    0.63      14.0 +/-    0.63  0.150 / 0.290
G21     301.0          39.0               14.0 +/-    1.16      20.7 +/-    1.16  0.020 / 0.030
G25     202.1          18.7               19.6 +/-    4.40      44.6 +/-    4.40  0.030 / 0.080
G26     302.6          18.7               12.5 +/-    2.29      28.5 +/-    2.29  0.060 / 0.080
G29     127.4          83.9               15.4 +/-    0.71      15.5 +/-    0.71  0.050 / 0.090