PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/25-07:42:40
G01     124.6          12.1                5.5 +/-    1.67      14.6 +/-    1.67  0.030 / 0.030
G07     60.3           68.6                6.3 +/-    0.58       6.7 +/-    0.58  0.040 / 0.030
G08     50.9           40.7                4.2 +/-    0.52       6.0 +/-    0.52  0.160 / 0.280
G09     176.9          34.3                6.9 +/-    1.29      11.0 +/-    1.29  0.140 / 0.280
G11     119.2          36.8                7.1 +/-    0.90      10.9 +/-    0.90  0.060 / 0.110
G13     320.3          13.7                1.5 +/-    2.58       4.0 +/-    2.58  0.060 / 0.100
G17     200.0          14.0                3.3 +/-    4.22       8.3 +/-    4.22  0.110 / 0.250
G18     102.0          17.2                6.7 +/-    1.43      15.9 +/-    1.43  0.100 / 0.220
G28     270.0          47.6                6.9 +/-    2.25       9.0 +/-    2.25  0.040 / 0.030
G30     331.2          60.0                4.7 +/-    0.67       5.4 +/-    0.67  0.030 / 0.030