PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/25-21:12:30
G02     25.1           61.6               12.4 +/-    1.15      13.9 +/-    1.15  0.040 / 0.040
G05     150.7          57.4               16.2 +/-    0.52      18.8 +/-    0.52  0.040 / 0.050
G06     52.3           18.1                9.4 +/-    2.48      21.7 +/-    2.48  0.030 / 0.030
G12     201.1          70.5               15.2 +/-    0.33      16.0 +/-    0.33  0.020 / 0.030
G19     98.3           10.2               12.5 +/-    1.42      34.9 +/-    1.42  0.040 / 0.040
G20     197.3          24.1               18.2 +/-    3.48      36.2 +/-    3.48  0.050 / 0.040
G25     297.3          55.4               12.0 +/-    1.95      14.2 +/-    1.95  0.080 / 0.140
G29     305.6          26.7               12.9 +/-    1.42      24.2 +/-    1.42  0.100 / 0.110