PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/09-16:28:00
G01     307.9          32.5                6.2 +/-    1.78      10.4 +/-    1.78  0.120 / 0.150
G10     105.0          41.1                8.5 +/-    1.01      12.2 +/-    1.01  0.140 / 0.150
G11     285.6          27.1                4.8 +/-    1.89       8.9 +/-    1.89  0.030 / 0.030
G14     351.3          67.6                6.6 +/-    0.45       7.1 +/-    0.45  0.030 / 0.040
G22     309.6          26.1                6.5 +/-    1.72      12.5 +/-    1.72  0.040 / 0.040
G25     83.7           16.4                8.4 +/-    1.86      20.3 +/-    1.86  0.040 / 0.050
G31     166.8          64.4                9.3 +/-    0.62      10.2 +/-    0.62  0.080 / 0.160
G32     35.8           52.7                7.0 +/-    1.01       8.6 +/-    1.01  0.070 / 0.120