PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/16-01:57:40
G01     318.7          19.9                6.6 +/-    2.75      14.6 +/-    2.75  0.040 / 0.060
G08     261.5          13.2                9.3 +/-    1.46      24.1 +/-    1.46  0.040 / 0.080
G10     81.6           51.3                9.3 +/-    0.56      11.5 +/-    0.56  0.030 / 0.040
G11     303.3          22.4                7.3 +/-    1.19      15.2 +/-    1.19  0.030 / 0.050
G14     294.0          70.2                9.7 +/-    0.78      10.2 +/-    0.78  0.130 / 0.310
G18     304.0          41.5                8.9 +/-    0.99      12.6 +/-    0.99  0.140 / 0.290
G20     106.2          28.4                8.4 +/-    1.23      15.2 +/-    1.23  0.180 / 0.320
G31     174.2          43.7               11.7 +/-    0.63      16.0 +/-    0.63  0.230 / 0.350
G32     7.5            67.5                8.6 +/-    0.81       9.2 +/-    0.81  0.100 / 0.260