PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/24-20:27:50
G02     31.5           56.7               10.6 +/-    0.52      12.4 +/-    0.52  0.030 / 0.040
G05     138.8          62.4               13.6 +/-    0.72      15.1 +/-    0.72  0.030 / 0.040
G06     54.4           14.1                7.8 +/-    1.71      19.9 +/-    1.71  0.030 / 0.040
G12     191.5          65.1               12.7 +/-    1.25      13.8 +/-    1.25  0.030 / 0.040
G19     99.2           12.1               11.4 +/-    2.45      30.3 +/-    2.45  0.040 / 0.050
G25     296.2          54.0               12.1 +/-    0.69      14.6 +/-    0.69  0.040 / 0.060
G29     306.8          26.9                9.0 +/-    1.78      16.9 +/-    1.78  0.040 / 0.060