PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/07-14:28:10
G01     312.3          28.6                5.0 +/-    1.31       9.0 +/-    1.31  0.110 / 0.130
G10     98.5           45.0                7.4 +/-    1.21      10.0 +/-    1.21  0.080 / 0.120
G11     292.3          26.0                5.6 +/-    2.19      10.8 +/-    2.19  0.030 / 0.040
G14     333.6          69.6                5.2 +/-    0.45       5.5 +/-    0.45  0.040 / 0.040
G22     307.7          22.8                6.1 +/-    1.68      12.5 +/-    1.68  0.160 / 0.220
G25     89.5           14.5                7.5 +/-    1.63      19.0 +/-    1.63  0.200 / 0.280
G31     169.7          58.6                8.6 +/-    0.74       9.9 +/-    0.74  0.040 / 0.040
G32     29.9           56.5                5.3 +/-    0.92       6.3 +/-    0.92  0.030 / 0.040