PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/16-15:12:50
G01     302.9          36.4                6.5 +/-    2.94      10.1 +/-    2.94  0.050 / 0.060
G10     110.6          35.7                6.8 +/-    0.55      10.7 +/-    0.55  0.060 / 0.050
G11     275.1          28.0                6.1 +/-    1.29      11.1 +/-    1.29  0.040 / 0.040
G14     8.5            64.3                5.7 +/-    0.61       6.3 +/-    0.61  0.040 / 0.050
G18     263.8          51.3                8.1 +/-    4.15      10.1 +/-    4.15  0.070 / 0.090
G20     123.3          10.5                7.0 +/-    1.59      19.3 +/-    1.59  0.120 / 0.080
G22     311.9          31.3                7.7 +/-    1.26      13.1 +/-    1.26  0.050 / 0.070
G25     74.8           16.7                6.6 +/-    1.06      15.8 +/-    1.06  0.070 / 0.060
G31     169.1          67.1                6.8 +/-    0.37       7.3 +/-    0.37  0.110 / 0.180
G32     37.5           51.9                6.2 +/-    0.73       7.7 +/-    0.73  0.110 / 0.170