PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/01-05:27:50
G10     262.4          36.3                6.2 +/-    1.60       9.7 +/-    1.60  0.100 / 0.280
G13     44.0           21.0                3.8 +/-    2.45       8.2 +/-    2.45  0.110 / 0.210
G15     63.5           50.9                4.6 +/-    0.84       5.8 +/-    0.84  0.040 / 0.040
G16     287.0          13.1                3.9 +/-    2.29      10.1 +/-    2.29  0.040 / 0.040
G20     289.6          58.2                5.0 +/-    1.16       5.8 +/-    1.16  0.070 / 0.070
G21     356.8          69.4                4.4 +/-    1.33       4.6 +/-    1.33  0.070 / 0.070
G24     123.6          11.6                5.0 +/-    2.88      13.4 +/-    2.88  0.280 / 0.380
G27     321.1          13.8                2.7 +/-    2.67       6.8 +/-    2.67  0.260 / 0.330
G29     164.8          32.7                4.6 +/-    1.33       7.7 +/-    1.33  0.110 / 0.240