PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/17-23:28:10
G01     319.7          15.7                7.5 +/-    1.80      18.3 +/-    1.80  0.280 / 0.440
G08     258.6          14.5               10.8 +/-    2.02      27.2 +/-    2.02  0.250 / 0.490
G10     74.5           55.4                9.4 +/-    0.60      11.2 +/-    0.60  0.140 / 0.400
G11     304.8          22.6                7.2 +/-    2.05      14.8 +/-    2.05  0.130 / 0.350
G14     291.8          70.6               10.3 +/-    0.81      10.8 +/-    0.81  0.040 / 0.070
G18     99.5           30.6               10.5 +/-    0.61      18.2 +/-    0.61  0.080 / 0.080
G27     224.6          10.0               14.5 +/-    4.54      40.5 +/-    4.54  0.020 / 0.030
G31     179.8          35.7               13.3 +/-    1.57      20.8 +/-    1.57  0.020 / 0.030
G32     352.9          70.7                9.4 +/-    0.68       9.9 +/-    0.68  0.040 / 0.050