PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/28-04:13:10
G08     287.7          22.3                9.8 +/-    1.45      20.3 +/-    1.45  0.050 / 0.110
G10     27.2           62.2                6.1 +/-    0.38       6.8 +/-    0.38  0.050 / 0.090
G14     236.7          52.9               10.4 +/-    2.20      12.7 +/-    2.20  0.110 / 0.150
G18     317.6          17.2                7.6 +/-    3.87      17.8 +/-    3.87  0.110 / 0.150
G20     75.4           48.1                6.4 +/-    0.84       8.2 +/-    0.84  0.040 / 0.030
G21     150.2          33.3                9.9 +/-    0.60      16.3 +/-    0.60  0.030 / 0.030
G24     50.0           21.8                5.2 +/-    1.11      11.0 +/-    1.11  0.070 / 0.080
G27     247.6          27.9                8.7 +/-    2.14      16.0 +/-    2.14  0.060 / 0.090
G31     181.4          13.7                7.7 +/-    1.79      19.8 +/-    1.79  0.120 / 0.200
G32     260.8          71.4                8.0 +/-    1.08       8.4 +/-    1.08  0.130 / 0.220