PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/02-04:43:00
G10     245.7          23.7                7.9 +/-    2.59      16.0 +/-    2.59  0.040 / 0.040
G13     58.9           32.0                3.7 +/-    0.48       6.2 +/-    0.48  0.040 / 0.050
G15     96.1           57.3                5.6 +/-    0.52       6.5 +/-    0.52  0.090 / 0.200
G16     304.8          14.0                4.4 +/-    2.15      11.3 +/-    2.15  0.110 / 0.160
G20     262.7          47.1                6.3 +/-    0.58       8.3 +/-    0.58  0.080 / 0.140
G21     329.1          57.0                3.2 +/-    0.75       3.7 +/-    0.75  0.090 / 0.150
G26     276.2          17.2                6.4 +/-    1.25      15.1 +/-    1.25  0.030 / 0.040
G29     159.5          52.9                5.0 +/-    1.22       6.1 +/-    1.22  0.030 / 0.040