PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/16-01:27:50
G02     39.5           49.9               12.2 +/-    0.91      15.5 +/-    0.91  0.040 / 0.040
G05     121.7          66.8               14.9 +/-    0.59      16.0 +/-    0.59  0.030 / 0.040
G06     57.6           10.7               10.6 +/-    2.95      29.1 +/-    2.95  0.020 / 0.030
G12     192.5          60.5               16.2 +/-    0.77      18.3 +/-    0.77  0.030 / 0.040
G25     287.4          56.2               12.2 +/-    0.90      14.4 +/-    0.90  0.040 / 0.060
G29     311.3          32.0               10.8 +/-    1.61      18.2 +/-    1.61  0.030 / 0.060