PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/13-08:12:50
G01     320.6          14.0              -21.5 +/-    8.09     -54.7 +/-    8.09  0.290 / 0.440
G08     262.9          16.1                5.9 +/-    1.11      14.4 +/-    1.11  0.170 / 0.390
G10     71.5           55.0                3.9 +/-    0.86       4.7 +/-    0.86  0.100 / 0.000
G11     307.4          20.5                4.6 +/-    3.06       9.9 +/-    3.06  0.050 / 0.060
G14     280.3          69.5                4.9 +/-    0.64       5.2 +/-    0.64  0.040 / 0.050
G18     308.7          37.6                4.2 +/-    1.15       6.4 +/-    1.15  0.030 / 0.040
G20     100.5          33.0                5.3 +/-    1.47       8.8 +/-    1.47  0.030 / 0.030
G27     229.2          13.1                2.9 +/-   12.74       7.5 +/-   12.74  0.110 / 0.310
G31     177.1          35.7                7.3 +/-    0.78      11.4 +/-    0.78  0.130 / 0.320
G32     341.2          72.7                5.6 +/-    0.68       5.8 +/-    0.68  0.050 / 0.090