PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/26-19:28:00
G02     34.3           53.8                8.2 +/-    1.29       9.9 +/-    1.29  0.040 / 0.050
G05     133.1          64.7               10.5 +/-    0.60      11.5 +/-    0.60  0.040 / 0.050
G06     55.3           12.9                6.6 +/-    2.59      17.2 +/-    2.59  0.050 / 0.060
G12     196.9          65.5                9.7 +/-    0.60      10.6 +/-    0.60  0.050 / 0.040
G25     292.8          54.6                9.6 +/-    1.50      11.5 +/-    1.50  0.090 / 0.140
G29     309.7          30.8                7.9 +/-    1.09      13.7 +/-    1.09  0.090 / 0.150