PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/15-05:28:00
G03     194.9          30.2                5.1 +/-    2.01       8.8 +/-    2.01  0.160 / 0.430
G07     282.8          34.6                4.6 +/-    2.68       7.4 +/-    2.68  0.160 / 0.390
G08     149.8          19.4                4.0 +/-    2.15       8.8 +/-    2.15  0.070 / 0.120
G09     320.9          55.0                3.3 +/-    0.93       3.9 +/-    0.93  0.060 / 0.090
G16     46.8           45.4                3.3 +/-    1.27       4.5 +/-    1.27  0.080 / 0.100
G22     181.6          15.0                5.6 +/-    1.51      13.9 +/-    1.51  0.080 / 0.100
G23     64.4           82.5                5.3 +/-    1.16       5.3 +/-    1.16  0.030 / 0.030
G26     43.4           18.3                2.2 +/-    1.53       5.1 +/-    1.53  0.040 / 0.040
G27     110.0          28.9                7.3 +/-    1.19      13.0 +/-    1.19  0.050 / 0.050