PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/16-17:27:50
G01     258.1          38.0               10.0 +/-    3.42      15.1 +/-    3.42  0.040 / 0.040
G03     316.6          41.4               10.5 +/-    1.21      15.0 +/-    1.21  0.040 / 0.040
G11     244.6          15.8               11.3 +/-    1.07      27.5 +/-    1.07  0.170 / 0.160
G14     53.0           45.4                9.9 +/-    1.40      13.2 +/-    1.40  0.080 / 0.120
G22     309.8          62.4                9.2 +/-    0.86      10.2 +/-    0.86  0.030 / 0.030
G23     282.9          17.1                1.0 +/-    8.30       2.3 +/-    8.30  0.030 / 0.030
G25     44.5           13.5                7.8 +/-    3.68      20.2 +/-    3.68  0.070 / 0.090
G26     140.6          33.4               14.9 +/-    1.02      24.3 +/-    1.02  0.050 / 0.070
G31     43.1           63.7                9.3 +/-    0.41      10.3 +/-    0.41  0.180 / 0.290
G32     72.9           25.8                9.9 +/-    2.05      19.0 +/-    2.05  0.050 / 0.070