PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/16-01:27:30
G02     39.5           49.9               12.3 +/-    1.15      15.5 +/-    1.15  0.030 / 0.040
G05     121.7          66.8               14.5 +/-    0.19      15.6 +/-    0.19  0.040 / 0.040
G06     57.6           10.7               11.8 +/-    1.90      32.5 +/-    1.90  0.020 / 0.030
G12     192.5          60.5               16.2 +/-    0.46      18.3 +/-    0.46  0.030 / 0.030
G25     287.4          56.2                9.7 +/-    0.86      11.5 +/-    0.86  0.140 / 0.220
G29     311.3          32.0               12.1 +/-    2.12      20.3 +/-    2.12  0.180 / 0.400