PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/16-02:27:30
G02     61.1           31.1               10.2 +/-    1.32      17.5 +/-    1.32  0.090 / 0.100
G05     55.5           58.6               11.7 +/-    0.41      13.5 +/-    0.41  0.130 / 0.100
G12     184.3          31.0               14.7 +/-    1.20      25.3 +/-    1.20  0.020 / 0.040
G13     127.4          16.0               13.2 +/-    3.01      32.0 +/-    3.01  0.030 / 0.030
G15     163.1          13.1               14.1 +/-    1.68      36.8 +/-    1.68  0.120 / 0.240
G20     218.8          16.9               16.3 +/-    2.30      38.8 +/-    2.30  0.210 / 0.270
G21     272.2          17.7               14.5 +/-    2.09      33.7 +/-    2.09  0.160 / 0.440
G25     236.1          51.1               14.2 +/-    3.27      17.7 +/-    3.27  0.100 / 0.340
G29     328.5          55.0               13.3 +/-    0.78      15.8 +/-    0.78  0.100 / 0.080