PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/31-07:28:00
G01     316.1          24.7                1.6 +/-    1.73       3.1 +/-    1.73  0.110 / 0.150
G10     90.7           47.6                3.7 +/-    0.68       4.8 +/-    0.68  0.080 / 0.170
G11     295.7          25.8                3.7 +/-    1.46       7.0 +/-    1.46  0.070 / 0.160
G14     320.9          71.3                3.8 +/-    0.85       4.0 +/-    0.85  0.070 / 0.150
G18     295.7          46.3                2.9 +/-    0.78       3.9 +/-    0.78  0.040 / 0.050
G20     111.4          23.8                2.8 +/-    1.37       5.7 +/-    1.37  0.040 / 0.050
G22     305.1          17.5                2.8 +/-    1.68       6.5 +/-    1.68  0.040 / 0.050
G25     95.2           11.3              -16.8 +/-   21.52     -45.6 +/-   21.52  0.040 / 0.040
G31     173.2          50.3                5.9 +/-    1.34       7.4 +/-    1.34  0.050 / 0.060
G32     13.8           64.5                1.6 +/-    0.83       1.7 +/-    0.83  0.040 / 0.070