PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/28-20:43:00
G10     248.3          26.5               11.7 +/-    1.53      22.2 +/-    1.53  0.040 / 0.040
G13     55.4           30.1                9.8 +/-    1.51      17.1 +/-    1.51  0.050 / 0.040
G15     93.0           58.2               10.1 +/-    0.70      11.6 +/-    0.70  0.100 / 0.160
G16     298.2          15.8                8.4 +/-    2.51      20.5 +/-    2.51  0.100 / 0.130
G20     267.2          49.6               11.2 +/-    3.62      14.2 +/-    3.62  0.030 / 0.040
G21     330.2          57.5                9.4 +/-    0.39      10.9 +/-    0.39  0.030 / 0.040
G26     270.6          16.4               10.5 +/-    2.46      25.1 +/-    2.46  0.150 / 0.440
G29     162.7          53.4               10.1 +/-    0.80      12.3 +/-    0.80  0.150 / 0.420