PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/29-20:12:50
G01     279.7          41.3               14.7 +/-    1.52      21.0 +/-    1.52  0.110 / 0.110
G03     314.5          24.4                9.2 +/-    2.50      18.2 +/-    2.50  0.080 / 0.090
G10     125.8          22.6               10.1 +/-    1.15      20.9 +/-    1.15  0.040 / 0.060
G11     257.7          23.3               12.8 +/-    4.54      26.1 +/-    4.54  0.030 / 0.060
G14     35.4           54.0                8.8 +/-    1.80      10.6 +/-    1.80  0.020 / 0.020
G22     314.5          45.5               10.2 +/-    1.27      13.7 +/-    1.27  0.020 / 0.020
G25     58.4           18.3                8.7 +/-    1.75      20.0 +/-    1.75  0.080 / 0.180
G26     152.9          19.2               12.5 +/-    2.51      28.1 +/-    2.51  0.070 / 0.130
G31     82.5           79.9               10.5 +/-    0.76      10.6 +/-    0.76  0.040 / 0.050
G32     58.3           36.9                7.6 +/-    1.04      11.7 +/-    1.04  0.050 / 0.060