PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/13-13:58:00
G01     287.9          41.3               -0.4 +/-    1.77      -0.6 +/-    1.77  0.060 / 0.070
G03     313.2          21.7                4.7 +/-    2.77      10.0 +/-    2.77  0.060 / 0.080
G10     121.1          26.1                6.9 +/-    1.52      13.2 +/-    1.52  0.050 / 0.040
G11     261.5          24.9                5.8 +/-    5.54      11.4 +/-    5.54  0.050 / 0.050
G14     28.4           57.1                5.6 +/-    1.47       6.5 +/-    1.47  0.080 / 0.120
G18     245.1          46.7                5.8 +/-    4.23       7.6 +/-    4.23  0.090 / 0.100
G22     314.9          43.5                6.7 +/-    1.06       9.2 +/-    1.06  0.080 / 0.060
G25     63.1           17.7                6.7 +/-    2.00      15.5 +/-    2.00  0.060 / 0.060
G31     131.8          79.6                7.4 +/-    0.75       7.5 +/-    0.75  0.120 / 0.280
G32     49.4           44.3                6.0 +/-    1.61       8.2 +/-    1.61  0.090 / 0.250