PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/31-22:27:50
G10     248.4          24.0               17.3 +/-    1.43      34.6 +/-    1.43  0.030 / 0.050
G13     57.3           32.8               13.5 +/-    0.69      22.4 +/-    0.69  0.040 / 0.060
G15     93.5           58.0               17.5 +/-    0.40      20.3 +/-    0.40  0.070 / 0.160
G16     300.9          14.2               10.7 +/-    1.52      27.0 +/-    1.52  0.080 / 0.130
G18     265.0          54.0               17.7 +/-    1.15      21.3 +/-    1.15  0.040 / 0.080
G20     41.5           50.0               12.6 +/-    0.33      15.8 +/-    0.33  0.040 / 0.070
G21     331.2          59.1               13.8 +/-    0.31      15.8 +/-    0.31  0.030 / 0.060
G26     273.2          16.2               15.0 +/-    1.66      36.3 +/-    1.66  0.030 / 0.050
G29     162.6          49.4               17.4 +/-    0.93      22.1 +/-    0.93  0.060 / 0.070