PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/25-08:12:50
G01     51.2           25.8                4.0 +/-    2.22       7.7 +/-    2.22  0.040 / 0.040
G06     177.1          22.4                7.0 +/-    1.52      14.6 +/-    1.52  0.040 / 0.040
G07     144.8          14.7                7.4 +/-    1.85      18.5 +/-    1.85  0.150 / 0.350
G11     45.9           20.4                4.5 +/-    2.21       9.7 +/-    2.21  0.160 / 0.230
G13     252.2          32.9                7.7 +/-    2.13      12.8 +/-    2.13  0.180 / 0.270
G15     285.3          16.3                6.2 +/-    2.89      15.0 +/-    2.89  0.140 / 0.250
G17     292.6          79.2                6.5 +/-    0.63       6.6 +/-    0.63  0.040 / 0.050
G19     241.7          59.7                7.0 +/-    1.85       7.9 +/-    1.85  0.040 / 0.040
G28     35.2           58.4                3.0 +/-    0.84       3.5 +/-    0.84  0.140 / 0.320
G30     149.2          47.6                7.8 +/-    0.99      10.2 +/-    0.99  0.150 / 0.380