PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/25-09:28:10
G01     74.6           32.4                5.0 +/-    0.75       8.3 +/-    0.75  0.030 / 0.030
G07     134.2          33.7                7.7 +/-    1.89      12.6 +/-    1.89  0.040 / 0.040
G11     57.7           35.8                4.9 +/-    1.16       7.7 +/-    1.16  0.060 / 0.090
G13     279.1          39.0                3.7 +/-    1.87       5.4 +/-    1.87  0.040 / 0.080
G15     306.6          14.0                2.3 +/-    1.49       5.9 +/-    1.49  0.070 / 0.110
G17     224.2          62.9                8.3 +/-    1.51       9.2 +/-    1.51  0.070 / 0.100
G18     52.1           20.1                3.5 +/-    1.77       7.6 +/-    1.77  0.090 / 0.280
G19     219.8          39.8                6.8 +/-    1.18      10.0 +/-    1.18  0.090 / 0.280
G28     355.5          61.5                5.3 +/-    0.84       5.9 +/-    0.84  0.100 / 0.110
G30     129.9          68.4                7.1 +/-    0.91       7.5 +/-    0.91  0.230 / 0.280