PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/25-08:27:50
G01     234.7          26.0                6.5 +/-    2.14      12.4 +/-    2.14  0.090 / 0.230
G03     307.7          60.1                4.7 +/-    1.11       5.3 +/-    1.11  0.110 / 0.160
G14     74.7           31.9                3.2 +/-    0.61       5.3 +/-    0.61  0.030 / 0.040
G16     155.6          31.9                4.4 +/-    1.06       7.4 +/-    1.06  0.040 / 0.030
G18     209.6          15.1                3.6 +/-    2.12       8.9 +/-    2.12  0.040 / 0.050
G22     258.9          75.7                4.0 +/-    0.67       4.1 +/-    0.67  0.050 / 0.060
G23     299.7          31.8                3.5 +/-    1.52       5.9 +/-    1.52  0.080 / 0.120
G26     119.5          49.1                4.0 +/-    1.27       5.2 +/-    1.27  0.080 / 0.120
G31     42.1           42.3                2.9 +/-    0.70       4.1 +/-    0.70  0.070 / 0.130
G32     88.6           15.4                2.6 +/-    1.15       6.3 +/-    1.15  0.080 / 0.110