PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/01-04:12:30
G10     290.7          50.2                6.9 +/-    0.99       8.6 +/-    0.99  0.060 / 0.090
G15     47.0           31.7                3.8 +/-    0.69       6.4 +/-    0.69  0.060 / 0.090
G20     339.4          65.2                3.9 +/-    0.60       4.3 +/-    0.60  0.040 / 0.040
G21     76.4           76.2                5.5 +/-    0.58       5.7 +/-    0.58  0.040 / 0.060
G24     103.2          24.3                3.6 +/-    1.08       7.1 +/-    1.08  0.050 / 0.050
G27     307.0          30.9               15.2 +/-    3.03      26.1 +/-    3.03  0.050 / 0.050
G29     166.9          10.6                4.1 +/-    2.76      11.3 +/-    2.76  0.050 / 0.090
G32     208.9          23.8                7.5 +/-    1.78      15.1 +/-    1.78  0.050 / 0.090