PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/23-01:28:10
G01     316.8          22.3                9.1 +/-    2.70      18.9 +/-    2.70  0.040 / 0.030
G10     86.8           51.1                8.5 +/-    1.22      10.6 +/-    1.22  0.040 / 0.030
G11     296.9          26.5                7.5 +/-    1.46      14.2 +/-    1.46  0.110 / 0.220
G14     319.0          71.5                7.3 +/-    0.63       7.6 +/-    0.63  0.170 / 0.380
G18     106.0          25.6                7.4 +/-    2.01      14.2 +/-    2.01  0.250 / 0.280
G22     302.9          13.7                7.3 +/-    2.15      18.7 +/-    2.15  0.150 / 0.140
G25     93.9           10.8                7.8 +/-    2.11      21.5 +/-    2.11  0.160 / 0.220
G31     177.1          45.8                9.5 +/-    0.75      12.6 +/-    0.75  0.240 / 0.300
G32     10.4           65.6                6.4 +/-    0.59       7.0 +/-    0.59  0.040 / 0.040