PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/27-18:12:50
G01     280.6          41.3                7.9 +/-    1.27      11.3 +/-    1.27  0.040 / 0.080
G03     314.6          25.2                8.3 +/-    2.58      16.1 +/-    2.58  0.040 / 0.080
G10     125.3          23.1               10.6 +/-    1.55      21.8 +/-    1.55  0.110 / 0.190
G11     259.4          23.4                8.6 +/-    1.10      17.5 +/-    1.10  0.110 / 0.160
G14     33.6           54.9                8.4 +/-    0.72      10.0 +/-    0.72  0.020 / 0.030
G22     314.6          45.9                7.1 +/-    1.59       9.4 +/-    1.59  0.030 / 0.030
G25     59.4           18.6                8.1 +/-    0.57      18.5 +/-    0.57  0.050 / 0.100
G26     152.3          19.2               12.0 +/-    2.36      27.0 +/-    2.36  0.060 / 0.120
G31     81.1           79.2                9.9 +/-    0.38      10.1 +/-    0.38  0.070 / 0.080
G32     58.2           36.7                7.6 +/-    0.80      11.7 +/-    0.80  0.070 / 0.090