PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/18-01:12:40
G02     36.8           52.3                9.0 +/-    0.81      11.0 +/-    0.81  0.040 / 0.040
G05     129.2          65.0               10.6 +/-    0.28      11.6 +/-    0.28  0.040 / 0.040
G06     55.8           12.8                6.3 +/-    2.23      16.4 +/-    2.23  0.030 / 0.040
G12     194.6          63.8               11.5 +/-    0.93      12.7 +/-    0.93  0.040 / 0.040
G25     292.6          54.8                9.0 +/-    1.73      10.7 +/-    1.73  0.080 / 0.140
G29     309.2          29.6                8.3 +/-    1.29      14.7 +/-    1.29  0.080 / 0.150