PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/25-16:57:50
G01     316.9          22.2                8.0 +/-    2.58      16.8 +/-    2.58  0.080 / 0.320
G10     87.4           50.6                8.1 +/-    1.04      10.2 +/-    1.04  0.070 / 0.250
G11     299.9          24.1                6.7 +/-    1.57      13.4 +/-    1.57  0.030 / 0.040
G14     311.6          70.8                8.0 +/-    0.54       8.5 +/-    0.54  0.040 / 0.040
G22     303.4          14.8                5.4 +/-    1.99      13.6 +/-    1.99  0.060 / 0.040
G25     97.0           10.9               11.9 +/-    4.58      32.5 +/-    4.58  0.050 / 0.040
G31     174.8          48.0               11.8 +/-    0.90      15.2 +/-    0.90  0.160 / 0.140
G32     17.2           63.4                8.3 +/-    0.61       9.1 +/-    0.61  0.130 / 0.160