PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/21-23:42:40
G01     315.3          26.3                7.9 +/-    1.39      14.9 +/-    1.39  0.100 / 0.180
G10     91.9           46.6                9.6 +/-    1.02      12.7 +/-    1.02  0.140 / 0.160
G11     297.0          24.6                7.2 +/-    0.93      14.2 +/-    0.93  0.050 / 0.050
G14     313.8          70.6                7.7 +/-    0.55       8.1 +/-    0.55  0.050 / 0.050
G18     295.6          46.1                8.1 +/-    4.24      10.7 +/-    4.24  0.080 / 0.070
G20     112.4          22.1                9.7 +/-    1.20      20.4 +/-    1.20  0.060 / 0.100
G22     304.6          14.6                7.4 +/-    1.14      18.5 +/-    1.14  0.030 / 0.030
G25     95.3           11.5                7.1 +/-   14.96      19.1 +/-   14.96  0.030 / 0.020
G31     171.8          51.8               10.9 +/-    0.40      13.4 +/-    0.40  0.130 / 0.360
G32     21.6           61.4                7.5 +/-    0.74       8.4 +/-    0.74  0.120 / 0.310