PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/04-14:57:30
G02     264.8          80.0               11.9 +/-    0.81      12.1 +/-    0.81  0.170 / 0.170
G05     172.1          19.4               12.7 +/-    1.62      28.4 +/-    1.62  0.170 / 0.170
G06     39.7           53.9               10.4 +/-    0.57      12.5 +/-    0.57  0.110 / 0.340
G12     320.7          57.8               10.8 +/-    1.31      12.5 +/-    1.31  0.120 / 0.380
G17     77.6           16.5               11.1 +/-    1.02      26.7 +/-    1.02  0.040 / 0.050
G19     65.0           33.1               10.9 +/-    0.57      17.9 +/-    0.57  0.030 / 0.040
G24     240.7          31.4               14.1 +/-    1.11      24.0 +/-    1.11  0.110 / 0.270
G25     317.7          20.1               11.6 +/-    2.20      25.4 +/-    2.20  0.120 / 0.260