PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/29-20:43:10
G02     71.3           24.0               15.0 +/-    1.03      30.0 +/-    1.03  0.070 / 0.200
G05     47.1           52.5               14.7 +/-    0.69      18.0 +/-    0.69  0.050 / 0.140
G12     181.8          16.8               18.5 +/-    5.13      44.1 +/-    5.13  0.070 / 0.100
G13     117.0          25.4               18.3 +/-    0.83      35.4 +/-    0.83  0.060 / 0.130
G15     156.0          24.1               21.1 +/-    1.74      42.1 +/-    1.74  0.060 / 0.170
G18     223.2          13.8               19.6 +/-    2.15      50.2 +/-    2.15  0.070 / 0.190
G20     222.7          78.1               18.4 +/-    0.67      18.8 +/-    0.67  0.030 / 0.040
G21     283.9          27.2               17.5 +/-    1.82      32.6 +/-    1.82  0.030 / 0.030
G25     214.9          37.4               19.7 +/-    1.29      29.9 +/-    1.29  0.030 / 0.050
G29     344.4          73.0               18.2 +/-    0.75      18.9 +/-    0.75  0.030 / 0.050