PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/19-11:12:30
G02     204.0          31.8                6.3 +/-    1.17      10.7 +/-    1.17  0.050 / 0.060
G06     158.9          69.0                6.0 +/-    1.06       6.3 +/-    1.06  0.060 / 0.080
G12     307.7          16.5                1.7 +/-    3.92       4.2 +/-    3.92  0.100 / 0.260
G17     37.6           47.6                4.1 +/-    0.44       5.4 +/-    0.44  0.210 / 0.210
G19     350.5          66.8                2.5 +/-    1.06       2.7 +/-    1.06  0.040 / 0.030
G24     295.2          40.3                5.1 +/-    0.85       7.4 +/-    0.85  0.040 / 0.030
G28     101.4          32.6                6.5 +/-    0.83      10.8 +/-    0.83  0.030 / 0.050