PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/11-18:28:10
G02     36.3           52.2               10.1 +/-    0.50      12.4 +/-    0.50  0.040 / 0.060
G05     127.8          66.6               11.5 +/-    0.69      12.4 +/-    0.69  0.040 / 0.050
G06     57.0           10.6                8.8 +/-    2.50      24.2 +/-    2.50  0.040 / 0.040
G12     193.4          61.9               12.2 +/-    0.53      13.7 +/-    0.53  0.040 / 0.050
G25     288.0          56.0                9.9 +/-    0.64      11.7 +/-    0.64  0.040 / 0.090
G29     311.5          32.6               10.5 +/-    1.06      17.4 +/-    1.06  0.040 / 0.070