PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/22-09:28:10
G01     81.5           32.2                4.7 +/-    0.79       7.8 +/-    0.79  0.040 / 0.070
G07     130.2          38.8                6.7 +/-    0.60       9.9 +/-    0.60  0.040 / 0.060
G11     63.1           39.0                4.9 +/-    0.91       7.2 +/-    0.91  0.070 / 0.050
G13     286.5          38.6                0.8 +/-    2.88       1.1 +/-    2.88  0.040 / 0.040
G15     311.3          12.1                3.1 +/-    1.53       8.4 +/-    1.53  0.100 / 0.100
G17     218.1          57.2                7.6 +/-    0.83       8.8 +/-    0.83  0.120 / 0.110
G18     57.3           22.2                3.6 +/-    1.74       7.5 +/-    1.74  0.260 / 0.320
G19     216.4          34.4                7.0 +/-    1.28      11.3 +/-    1.28  0.100 / 0.250
G28     344.4          61.5                3.8 +/-    0.50       4.2 +/-    0.50  0.030 / 0.030
G30     119.0          73.6                6.4 +/-    0.72       6.6 +/-    0.72  0.030 / 0.030