PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/06-06:12:30
G10     299.6          53.0                4.4 +/-    1.86       5.4 +/-    1.86  0.060 / 0.110
G14     209.9          12.8                3.0 +/-    8.72       7.8 +/-    8.72  0.060 / 0.100
G15     45.8           26.2                2.4 +/-    0.63       4.6 +/-    0.63  0.040 / 0.040
G20     354.6          65.2                3.2 +/-    1.76       3.5 +/-    1.76  0.040 / 0.040
G21     100.2          72.6                3.1 +/-    0.88       3.2 +/-    0.88  0.040 / 0.040
G24     96.2           26.7                6.9 +/-    0.94      12.9 +/-    0.94  0.040 / 0.040
G27     301.2          33.7                4.4 +/-    1.18       7.2 +/-    1.18  0.120 / 0.420
G32     211.3          28.6                5.7 +/-    1.37      10.3 +/-    1.37  0.110 / 0.440