PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/08-21:12:00
G02     46.7           43.4                9.2 +/-    1.63      12.6 +/-    1.63  0.040 / 0.050
G05     92.5           69.2                9.7 +/-    0.77      10.2 +/-    0.77  0.050 / 0.050
G12     189.3          50.7               10.9 +/-    1.06      13.7 +/-    1.06  0.080 / 0.080
G25     266.1          58.2                7.7 +/-    1.90       8.9 +/-    1.90  0.070 / 0.060
G29     319.3          42.0                9.9 +/-    1.66      14.0 +/-    1.66  0.040 / 0.050