PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/16-19:42:40
G02     26.8           60.6               12.4 +/-    0.49      14.1 +/-    0.49  0.030 / 0.050
G05     153.0          56.7               13.7 +/-    0.55      16.1 +/-    0.55  0.030 / 0.040
G06     52.2           18.6               10.9 +/-    1.42      24.9 +/-    1.42  0.040 / 0.060
G12     203.4          71.0               11.6 +/-    0.42      12.2 +/-    0.42  0.050 / 0.070
G19     98.3           10.2               11.8 +/-    2.30      32.9 +/-    2.30  0.030 / 0.050
G20     197.5          23.8               15.7 +/-    1.47      31.6 +/-    1.47  0.040 / 0.070
G25     297.5          55.2               13.3 +/-    0.97      15.8 +/-    0.97  0.060 / 0.130
G29     306.0          27.4               11.0 +/-    1.17      20.3 +/-    1.17  0.060 / 0.130