PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/26-18:12:30
G01     222.8          13.4               12.1 +/-    3.09      31.2 +/-    3.09  0.030 / 0.040
G03     261.5          71.6               11.0 +/-    0.67      11.5 +/-    0.67  0.040 / 0.030
G14     90.6           22.5               10.4 +/-    1.20      21.5 +/-    1.20  0.110 / 0.200
G16     142.3          50.1               12.3 +/-    0.71      15.5 +/-    0.71  0.100 / 0.220
G22     201.9          65.1               12.0 +/-    0.55      13.1 +/-    0.55  0.130 / 0.130
G23     312.4          42.6               11.4 +/-    0.91      15.9 +/-    0.91  0.070 / 0.120
G26     86.2           54.2               10.8 +/-    1.00      13.0 +/-    1.00  0.030 / 0.050
G31     47.5           27.0                9.0 +/-    1.79      16.8 +/-    1.79  0.030 / 0.050