PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/05-16:28:10
G01     313.1          27.7                6.5 +/-    1.67      11.9 +/-    1.67  0.100 / 0.180
G10     97.0           46.0                8.0 +/-    0.72      10.7 +/-    0.72  0.110 / 0.230
G11     293.0          26.1                7.8 +/-    2.40      14.8 +/-    2.40  0.040 / 0.040
G14     333.0          69.9                7.3 +/-    0.78       7.7 +/-    0.78  0.040 / 0.040
G22     306.8          20.5                6.2 +/-    2.28      13.5 +/-    2.28  0.150 / 0.240
G25     90.4           14.0                9.5 +/-    1.62      24.1 +/-    1.62  0.160 / 0.230
G31     171.6          56.5               10.8 +/-    0.42      12.7 +/-    0.42  0.030 / 0.040
G32     27.6           57.9                6.9 +/-    0.73       8.0 +/-    0.73  0.030 / 0.040