PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/13-10:43:00
G01     316.5          23.9                4.9 +/-    1.15       9.8 +/-    1.15  0.170 / 0.130
G10     89.7           48.2                5.5 +/-    1.54       7.1 +/-    1.54  0.170 / 0.150
G11     295.9          26.0                7.7 +/-    2.16      14.6 +/-    2.16  0.030 / 0.030
G14     320.4          71.5                6.4 +/-    0.90       6.7 +/-    0.90  0.040 / 0.040
G18     295.7          46.6                8.5 +/-    7.72      11.2 +/-    7.72  0.040 / 0.040
G20     110.9          24.1                6.3 +/-    1.84      12.6 +/-    1.84  0.050 / 0.050
G22     305.5          19.9                6.0 +/-    1.01      13.2 +/-    1.01  0.080 / 0.220
G25     94.7           11.0               -5.2 +/-   31.85     -14.3 +/-   31.85  0.120 / 0.200
G31     175.1          48.3                7.4 +/-    0.92       9.6 +/-    0.92  0.080 / 0.060
G32     7.0            66.4                6.1 +/-    0.81       6.6 +/-    0.81  0.070 / 0.060