PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/10-20:27:40
G02     35.7           53.7               12.4 +/-    1.48      15.0 +/-    1.48  0.030 / 0.040
G05     138.7          65.3               14.6 +/-    0.46      15.9 +/-    0.46  0.040 / 0.050
G06     57.2           11.7               10.2 +/-    2.24      27.5 +/-    2.24  0.040 / 0.040
G12     192.9          60.8               15.0 +/-    0.56      16.9 +/-    0.56  0.040 / 0.040
G20     198.5          33.1               16.1 +/-    1.21      26.6 +/-    1.21  0.030 / 0.040
G25     280.2          59.8               14.6 +/-    3.63      16.6 +/-    3.63  0.050 / 0.040
G29     312.3          34.1                9.9 +/-    1.71      16.0 +/-    1.71  0.090 / 0.060