PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/07-18:42:30
G02     35.5           52.9                8.7 +/-    0.69      10.7 +/-    0.69  0.040 / 0.040
G05     129.9          65.9                9.5 +/-    0.68      10.3 +/-    0.68  0.050 / 0.060
G06     56.4           11.4                7.2 +/-    1.92      19.6 +/-    1.92  0.030 / 0.040
G12     194.4          63.2                9.5 +/-    0.68      10.5 +/-    0.68  0.030 / 0.050
G25     289.8          55.5                8.2 +/-    0.64       9.7 +/-    0.64  0.040 / 0.040
G29     310.8          31.9                8.2 +/-    0.84      13.9 +/-    0.84  0.030 / 0.060