PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/16-11:27:50
G01     294.1          40.1                9.7 +/-    6.21      14.1 +/-    6.21  0.070 / 0.080
G03     311.9          19.5                3.3 +/-    1.74       7.3 +/-    1.74  0.070 / 0.080
G10     117.3          29.8                6.4 +/-    1.71      11.2 +/-    1.71  0.060 / 0.080
G11     267.1          26.3                5.9 +/-    0.85      11.2 +/-    0.85  0.060 / 0.080
G14     20.9           60.1                6.1 +/-    1.17       6.9 +/-    1.17  0.050 / 0.050
G18     253.7          49.0                7.0 +/-    3.55       8.9 +/-    3.55  0.040 / 0.050
G22     314.6          41.4                4.2 +/-    1.19       6.0 +/-    1.19  0.040 / 0.040
G25     69.2           18.1                3.5 +/-    1.78       8.1 +/-    1.78  0.050 / 0.040
G31     146.0          76.4                6.9 +/-    0.56       7.1 +/-    0.56  0.080 / 0.080
G32     42.9           48.9                4.4 +/-    0.55       5.7 +/-    0.55  0.060 / 0.060