PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/24-19:57:50
G02     43.0           46.6                8.1 +/-    0.99      10.6 +/-    0.99  0.040 / 0.050
G05     106.1          69.4               10.2 +/-    0.62      10.8 +/-    0.62  0.050 / 0.050
G12     190.3          54.6               10.8 +/-    0.60      12.9 +/-    0.60  0.060 / 0.060
G25     274.4          58.0               14.9 +/-    1.26      17.2 +/-    1.26  0.060 / 0.060
G29     316.5          38.5                8.3 +/-    0.71      12.3 +/-    0.71  0.040 / 0.040