PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/15-21:27:40
G10     245.3          23.8               10.0 +/-    0.96      20.1 +/-    0.96  0.120 / 0.540
G13     59.1           31.9                6.8 +/-    1.07      11.4 +/-    1.07  0.140 / 0.460
G15     100.1          57.9                9.1 +/-    0.90      10.5 +/-    0.90  0.060 / 0.040
G16     302.0          15.5                5.8 +/-    2.16      14.2 +/-    2.16  0.040 / 0.050
G20     262.3          46.8                9.2 +/-    3.69      12.1 +/-    3.69  0.060 / 0.150
G21     326.1          55.0                8.6 +/-    0.51      10.2 +/-    0.51  0.060 / 0.120
G26     274.3          17.6                8.1 +/-    2.76      18.8 +/-    2.76  0.030 / 0.040
G29     161.1          57.3                9.9 +/-    0.38      11.5 +/-    0.38  0.030 / 0.040