PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/29-01:27:50
G02     34.9           53.4                6.6 +/-    1.04       8.0 +/-    1.04  0.060 / 0.060
G05     133.7          63.6                8.2 +/-    0.61       9.0 +/-    0.61  0.050 / 0.060
G06     53.4           17.0                5.9 +/-    1.59      13.9 +/-    1.59  0.030 / 0.030
G12     202.9          68.5                8.7 +/-    0.28       9.3 +/-    0.28  0.020 / 0.030
G25     294.2          54.8                7.4 +/-    3.14       8.8 +/-    3.14  0.040 / 0.040
G29     310.1          32.4                7.2 +/-    0.84      12.1 +/-    0.84  0.030 / 0.030