PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/05-01:12:20
G02     38.6           50.2                7.5 +/-    0.70       9.4 +/-    0.70  0.040 / 0.060
G05     124.0          66.4                8.2 +/-    0.77       8.9 +/-    0.77  0.040 / 0.040
G06     55.9           13.6                5.0 +/-    2.19      12.9 +/-    2.19  0.040 / 0.070
G12     197.6          63.9                9.4 +/-    0.49      10.4 +/-    0.49  0.050 / 0.060
G25     287.0          56.8                8.1 +/-    1.59       9.4 +/-    1.59  0.030 / 0.040
G29     313.1          35.4                7.5 +/-    1.48      11.8 +/-    1.48  0.020 / 0.040