PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/15-02:13:00
G01     316.7          23.9                4.2 +/-    0.86       8.4 +/-    0.86  0.050 / 0.060
G08     257.1          10.8                8.4 +/-    1.88      23.1 +/-    1.88  0.040 / 0.050
G10     88.6           48.3                8.4 +/-    0.67      10.9 +/-    0.67  0.090 / 0.240
G11     298.7          24.4                7.2 +/-    2.30      14.3 +/-    2.30  0.170 / 0.260
G14     309.7          71.0                6.7 +/-    1.30       7.0 +/-    1.30  0.050 / 0.040
G18     298.6          44.8                7.4 +/-    2.01      10.0 +/-    2.01  0.040 / 0.050
G20     110.2          24.9                5.8 +/-    1.73      11.4 +/-    1.73  0.090 / 0.230
G22     303.6          13.4                5.2 +/-    2.14      13.4 +/-    2.14  0.080 / 0.200
G31     172.6          49.2                7.9 +/-    1.22      10.1 +/-    1.22  0.110 / 0.240
G32     16.1           64.0                5.6 +/-    0.61       6.2 +/-    0.61  0.110 / 0.250