PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/12-19:12:40
G10     296.9          52.5               10.8 +/-    1.60      13.3 +/-    1.60  0.050 / 0.090
G15     46.2           28.4               10.5 +/-    1.34      19.0 +/-    1.34  0.060 / 0.100
G20     353.3          65.3               11.8 +/-    0.73      12.8 +/-    0.73  0.040 / 0.030
G21     89.1           75.3               13.4 +/-    0.64      13.8 +/-    0.64  0.040 / 0.040
G24     101.3          26.1               13.5 +/-    1.05      25.7 +/-    1.05  0.080 / 0.130
G27     302.5          33.7               11.1 +/-    1.25      18.0 +/-    1.25  0.070 / 0.130
G32     209.2          31.3               11.1 +/-    1.66      19.0 +/-    1.66  0.070 / 0.130