PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/12-18:27:30
G02     37.5           51.2                7.5 +/-    1.27       9.3 +/-    1.27  0.030 / 0.040
G05     124.3          67.4                9.3 +/-    0.66       9.9 +/-    0.66  0.030 / 0.050
G06     57.8           9.6                 7.5 +/-    2.18      21.1 +/-    2.18  0.270 / 0.390
G12     192.4          60.4                8.5 +/-    0.36       9.7 +/-    0.36  0.170 / 0.330
G25     285.5          56.5                4.9 +/-    1.26       5.7 +/-    1.26  0.050 / 0.060
G29     312.4          33.7                6.9 +/-    1.31      11.2 +/-    1.31  0.050 / 0.050