PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/17-15:43:10
G01     311.8          29.0                7.5 +/-    0.89      13.4 +/-    0.89  0.130 / 0.160
G10     99.2           44.7                9.5 +/-    0.76      12.9 +/-    0.76  0.070 / 0.160
G11     291.4          26.3                8.2 +/-    1.80      15.6 +/-    1.80  0.030 / 0.030
G14     337.2          69.4                8.5 +/-    0.39       9.0 +/-    0.39  0.040 / 0.040
G22     307.7          22.4                9.1 +/-    3.17      18.9 +/-    3.17  0.200 / 0.260
G25     88.8           14.7               10.7 +/-    2.71      26.8 +/-    2.71  0.150 / 0.250
G31     170.1          58.9               11.7 +/-    0.45      13.4 +/-    0.45  0.040 / 0.040
G32     30.2           56.3                7.5 +/-    1.32       8.8 +/-    1.32  0.030 / 0.040