PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/14-09:28:00
G08     281.7          22.7                5.7 +/-    1.63      11.8 +/-    1.63  0.080 / 0.150
G10     33.3           61.9                2.9 +/-    1.24       3.2 +/-    1.24  0.070 / 0.160
G14     241.1          56.5                8.1 +/-    2.80       9.5 +/-    2.80  0.030 / 0.020
G18     317.0          21.1                3.1 +/-    1.78       6.6 +/-    1.78  0.030 / 0.030
G20     79.6           45.8                4.9 +/-    1.47       6.5 +/-    1.47  0.050 / 0.030
G21     150.8          27.9                5.3 +/-    2.15       9.7 +/-    2.15  0.030 / 0.030
G24     46.8           18.8                3.1 +/-    1.86       7.0 +/-    1.86  0.120 / 0.120
G27     245.5          26.1                6.9 +/-    1.33      13.1 +/-    1.33  0.120 / 0.170
G31     182.0          15.1                4.3 +/-    2.74      10.8 +/-    2.74  0.090 / 0.070
G32     263.5          70.0                6.0 +/-    0.69       6.3 +/-    0.69  0.080 / 0.090