PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/09-16:43:10
G02     269.5          79.9               13.7 +/-    0.83      13.9 +/-    0.83  0.190 / 0.170
G05     172.6          20.0               15.1 +/-    0.99      33.2 +/-    0.99  0.140 / 0.180
G06     40.0           51.2               14.6 +/-    0.75      18.1 +/-    0.75  0.100 / 0.150
G12     320.3          60.2               13.8 +/-    1.50      15.7 +/-    1.50  0.090 / 0.200
G17     79.1           15.2               13.6 +/-    1.90      33.5 +/-    1.90  0.030 / 0.040
G19     66.7           32.0               13.1 +/-    2.43      22.1 +/-    2.43  0.040 / 0.040
G24     239.1          30.4               12.1 +/-    1.66      20.9 +/-    1.66  0.090 / 0.160
G25     317.7          22.6               12.7 +/-    3.13      26.2 +/-    3.13  0.080 / 0.200