PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/26-20:28:10
G02     35.3           53.6                9.6 +/-    0.51      11.6 +/-    0.51  0.030 / 0.030
G05     130.6          65.5               11.7 +/-    0.74      12.7 +/-    0.74  0.030 / 0.040
G06     56.7           11.1                9.1 +/-    2.63      24.7 +/-    2.63  0.030 / 0.040
G12     188.7          60.4               13.0 +/-    0.96      14.7 +/-    0.96  0.030 / 0.040
G25     289.4          56.2                9.6 +/-    1.20      11.3 +/-    1.20  0.040 / 0.050
G29     309.6          30.0                9.0 +/-    0.85      15.7 +/-    0.85  0.040 / 0.050