PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/23-16:27:50
G01     277.2          41.3                8.6 +/-    1.31      12.3 +/-    1.31  0.030 / 0.030
G03     315.4          28.8                8.7 +/-    1.73      15.6 +/-    1.73  0.030 / 0.030
G10     127.0          21.0               12.4 +/-    0.96      26.6 +/-    0.96  0.050 / 0.060
G11     258.0          22.3                5.7 +/-    2.35      11.8 +/-    2.35  0.060 / 0.060
G14     35.8           54.0                8.9 +/-    0.59      10.7 +/-    0.59  0.040 / 0.070
G22     314.8          49.4                7.6 +/-    1.15       9.7 +/-    1.15  0.040 / 0.070
G25     57.3           18.3                8.0 +/-    1.20      18.3 +/-    1.20  0.070 / 0.090
G26     150.1          21.6               12.3 +/-    1.12      26.0 +/-    1.12  0.070 / 0.100
G31     67.0           76.9                9.8 +/-    0.38      10.1 +/-    0.38  0.050 / 0.090
G32     60.8           34.6                7.7 +/-    1.17      12.3 +/-    1.17  0.050 / 0.080