PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/27-17:43:00
G01     298.1          37.9                7.8 +/-    2.14      11.8 +/-    2.14  0.040 / 0.090
G03     310.1          14.0                6.4 +/-    1.52      16.3 +/-    1.52  0.080 / 0.080
G10     114.7          33.8               11.0 +/-    1.11      17.8 +/-    1.11  0.040 / 0.040
G11     274.0          27.0                8.8 +/-    0.89      16.5 +/-    0.89  0.040 / 0.040
G14     12.8           62.7                7.9 +/-    0.96       8.8 +/-    0.96  0.090 / 0.130
G22     312.6          33.8                6.8 +/-    0.82      11.0 +/-    0.82  0.070 / 0.140
G25     73.4           18.6                8.6 +/-    1.73      19.7 +/-    1.73  0.020 / 0.020
G31     152.4          74.5               10.9 +/-    0.80      11.2 +/-    0.80  0.020 / 0.030
G32     45.6           45.9                8.1 +/-    0.85      10.7 +/-    0.85  0.100 / 0.080