PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/14-05:27:50
G01     225.6          17.9                4.9 +/-    1.27      11.2 +/-    1.27  0.100 / 0.200
G03     291.4          67.1                3.4 +/-    0.62       3.7 +/-    0.62  0.110 / 0.200
G14     84.3           26.3                3.4 +/-    1.43       6.4 +/-    1.43  0.040 / 0.040
G16     146.4          43.5                6.6 +/-    1.27       9.1 +/-    1.27  0.050 / 0.040
G22     223.7          71.6                4.5 +/-    0.91       4.7 +/-    0.91  0.050 / 0.050
G23     308.3          39.3                3.8 +/-    1.11       5.6 +/-    1.11  0.050 / 0.060
G26     99.6           53.7                5.3 +/-    1.20       6.4 +/-    1.20  0.130 / 0.540
G31     45.5           31.8               -4.6 +/-    0.53      -7.7 +/-    0.53  0.130 / 0.400