PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/06-16:28:10
G01     311.8          29.0                5.6 +/-    0.88      10.1 +/-    0.88  0.110 / 0.200
G10     99.2           44.7                7.6 +/-    1.05      10.3 +/-    1.05  0.160 / 0.190
G11     291.0          26.5                8.3 +/-    0.75      15.6 +/-    0.75  0.030 / 0.040
G14     338.2          69.4                5.8 +/-    0.37       6.1 +/-    0.37  0.040 / 0.040
G22     307.6          22.0                6.9 +/-    1.94      14.4 +/-    1.94  0.030 / 0.040
G25     88.7           14.7                8.9 +/-    3.20      22.3 +/-    3.20  0.040 / 0.030
G31     170.6          58.6                7.5 +/-    0.41       8.6 +/-    0.41  0.240 / 0.250
G32     29.9           56.5                5.5 +/-    1.03       6.4 +/-    1.03  0.180 / 0.270