PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/27-09:27:50
G01     319.5          17.5                3.8 +/-    1.10       8.9 +/-    1.10  0.090 / 0.200
G08     258.6          14.1                6.6 +/-    1.48      16.9 +/-    1.48  0.090 / 0.200
G10     78.3           52.8                5.2 +/-    0.86       6.3 +/-    0.86  0.220 / 0.300
G11     303.7          22.8                3.7 +/-    2.51       7.6 +/-    2.51  0.270 / 0.350
G14     293.7          71.0                6.0 +/-    0.41       6.3 +/-    0.41  0.030 / 0.040
G18     304.9          41.1                5.8 +/-    0.85       8.3 +/-    0.85  0.030 / 0.040
G20     104.3          29.9                6.7 +/-    1.39      11.7 +/-    1.39  0.080 / 0.200
G27     226.3          10.3                6.2 +/-    3.24      17.3 +/-    3.24  0.080 / 0.210
G31     176.6          39.9                7.1 +/-    0.71      10.3 +/-    0.71  0.050 / 0.070
G32     351.4          70.8                5.4 +/-    0.46       5.7 +/-    0.46  0.050 / 0.050