PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/12-00:43:10
G02     38.3           50.4                7.9 +/-    1.26      10.0 +/-    1.26  0.030 / 0.050
G05     124.5          66.3                8.5 +/-    0.60       9.1 +/-    0.60  0.040 / 0.050
G06     55.9           13.5                5.9 +/-    1.78      15.1 +/-    1.78  0.050 / 0.060
G12     197.6          64.1                8.5 +/-    0.53       9.3 +/-    0.53  0.050 / 0.080
G25     287.6          56.6                5.7 +/-    2.01       6.6 +/-    2.01  0.020 / 0.040
G29     312.8          35.0                6.5 +/-    1.53      10.3 +/-    1.53  0.030 / 0.040