PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/18-12:12:50
G01     261.0          39.8                5.8 +/-    0.79       8.5 +/-    0.79  0.050 / 0.050
G03     317.1          40.9                3.9 +/-    0.76       5.6 +/-    0.76  0.050 / 0.050
G10     133.1          10.4                4.6 +/-    3.47      12.9 +/-    3.47  0.060 / 0.080
G11     243.6          16.1                3.0 +/-    2.28       7.2 +/-    2.28  0.050 / 0.080
G14     51.3           45.5                3.0 +/-    0.54       4.0 +/-    0.54  0.240 / 0.200
G18     225.2          33.6                4.7 +/-    1.16       7.6 +/-    1.16  0.250 / 0.310
G22     311.2          63.2                4.5 +/-    1.13       5.0 +/-    1.13  0.050 / 0.090
G25     46.2           13.6                2.6 +/-    0.98       6.7 +/-    0.98  0.060 / 0.100
G31     46.6           68.3                4.0 +/-    0.54       4.3 +/-    0.54  0.130 / 0.360
G32     66.8           32.6                4.0 +/-    1.37       6.6 +/-    1.37  0.120 / 0.350