PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/14-16:28:10
G01     298.3          37.8                8.7 +/-    0.94      13.1 +/-    0.94  0.060 / 0.110
G03     310.2          14.8                7.5 +/-    1.44      18.6 +/-    1.44  0.060 / 0.120
G10     114.6          33.9                9.7 +/-    1.00      15.8 +/-    1.00  0.020 / 0.040
G11     274.9          26.8                9.3 +/-    1.10      17.4 +/-    1.10  0.020 / 0.040
G14     11.4           63.0                7.4 +/-    0.57       8.2 +/-    0.57  0.050 / 0.120
G22     312.7          34.4                7.7 +/-    1.38      12.4 +/-    1.38  0.050 / 0.100
G25     73.8           18.7                8.6 +/-    0.58      19.6 +/-    0.58  0.050 / 0.050
G31     150.5          74.6                9.9 +/-    1.00      10.3 +/-    1.00  0.050 / 0.060
G32     45.8           45.7                6.7 +/-    1.01       9.0 +/-    1.01  0.080 / 0.100