PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/07-16:13:00
G01     315.1          25.0                6.0 +/-    2.31      11.7 +/-    2.31  0.110 / 0.150
G10     92.4           48.3                7.5 +/-    1.10       9.7 +/-    1.10  0.120 / 0.120
G11     296.7          25.1                5.6 +/-    0.66      11.0 +/-    0.66  0.030 / 0.050
G14     322.1          70.5                6.8 +/-    0.57       7.2 +/-    0.57  0.030 / 0.040
G22     305.2          18.0                6.7 +/-    2.32      15.5 +/-    2.32  0.130 / 0.240
G25     93.8           12.5                9.5 +/-    1.55      25.1 +/-    1.55  0.190 / 0.220
G31     173.1          52.5               11.0 +/-    0.68      13.4 +/-    0.68  0.030 / 0.040
G32     23.1           60.4                6.9 +/-    0.71       7.8 +/-    0.71  0.040 / 0.040