PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/09-19:12:30
G02     26.3           60.5                9.7 +/-    0.78      11.0 +/-    0.78  0.030 / 0.040
G05     146.1          58.4               11.3 +/-    0.71      13.1 +/-    0.71  0.040 / 0.030
G06     52.2           17.0                7.6 +/-    2.18      18.1 +/-    2.18  0.070 / 0.050
G12     193.9          69.4               11.6 +/-    0.68      12.3 +/-    0.68  0.040 / 0.050
G19     95.6           15.0               10.3 +/-    1.51      25.7 +/-    1.51  0.020 / 0.030
G25     301.8          51.4                9.4 +/-    2.86      11.7 +/-    2.86  0.020 / 0.030
G29     303.8          23.8                9.3 +/-    1.26      18.6 +/-    1.26  0.120 / 0.120