PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/01-04:27:50
G01     276.6          41.4                7.6 +/-    0.95      10.9 +/-    0.95  0.080 / 0.110
G03     314.6          23.4                4.3 +/-    2.42       8.8 +/-    2.42  0.080 / 0.150
G10     127.0          21.5                6.9 +/-    1.92      14.7 +/-    1.92  0.060 / 0.040
G11     252.4          23.1                9.6 +/-    0.78      19.6 +/-    0.78  0.050 / 0.050
G14     40.0           51.4                6.2 +/-    0.81       7.7 +/-    0.81  0.040 / 0.040
G22     314.5          47.4                7.7 +/-    1.16      10.0 +/-    1.16  0.040 / 0.040
G25     53.2           16.1                4.0 +/-    3.95       9.6 +/-    3.95  0.140 / 0.160
G26     152.9          20.1                8.2 +/-    1.01      18.0 +/-    1.01  0.120 / 0.210
G31     73.0           79.1                8.3 +/-    0.57       8.5 +/-    0.57  0.020 / 0.020
G32     58.9           37.1                5.0 +/-    0.53       7.7 +/-    0.53  0.020 / 0.020