PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/21-01:43:10
G01     317.6          22.3                6.5 +/-    1.91      13.5 +/-    1.91  0.160 / 0.160
G08     258.7          11.8                8.9 +/-    2.85      23.8 +/-    2.85  0.200 / 0.170
G10     85.8           49.5                8.0 +/-    1.11      10.1 +/-    1.11  0.040 / 0.050
G11     300.7          23.6                6.4 +/-    1.15      12.9 +/-    1.15  0.040 / 0.060
G14     302.7          70.7                7.0 +/-    0.83       7.3 +/-    0.83  0.110 / 0.080
G18     300.9          43.5                6.1 +/-    3.75       8.4 +/-    3.75  0.120 / 0.070
G20     108.6          26.2                6.5 +/-    1.49      12.3 +/-    1.49  0.240 / 0.370
G22     302.6          11.8                3.0 +/-    8.81       8.2 +/-    8.81  0.250 / 0.370
G31     173.3          47.0                9.0 +/-    0.72      11.9 +/-    0.72  0.030 / 0.030
G32     13.2           65.3                5.6 +/-    0.69       6.1 +/-    0.69  0.030 / 0.030