PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/06-08:58:00
G01     318.5          20.1                2.9 +/-    1.69       6.3 +/-    1.69  0.030 / 0.030
G08     256.1          12.6                3.5 +/-    6.44       9.3 +/-    6.44  0.050 / 0.020
G10     83.0           51.1                2.8 +/-    1.08       3.5 +/-    1.08  0.140 / 0.300
G11     301.0          24.1                2.0 +/-    1.66       4.1 +/-    1.66  0.270 / 0.290
G14     303.5          71.5                2.7 +/-    0.66       2.8 +/-    0.66  0.140 / 0.250
G18     301.9          43.2                4.1 +/-    3.00       5.7 +/-    3.00  0.110 / 0.280
G20     107.0          27.7                4.5 +/-    1.60       8.2 +/-    1.60  0.080 / 0.140
G22     302.7          14.7                3.1 +/-    2.68       7.8 +/-    2.68  0.090 / 0.140
G31     175.6          43.5                4.2 +/-    1.49       5.8 +/-    1.49  0.050 / 0.060
G32     0.3            68.8                3.4 +/-    1.03       3.6 +/-    1.03  0.040 / 0.050