PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/08-13:28:10
G07     325.4          56.0                5.9 +/-    0.57       6.9 +/-    0.57  0.260 / 0.540
G08     117.2          47.1                8.8 +/-    0.52      11.5 +/-    0.52  0.170 / 0.440
G09     245.5          82.6                7.4 +/-    1.17       7.4 +/-    1.17  0.040 / 0.050
G16     43.8           16.6                5.5 +/-    3.70      13.0 +/-    3.70  0.030 / 0.040
G23     150.2          50.8                9.0 +/-    0.60      11.3 +/-    0.60  0.070 / 0.050
G27     68.0           36.4                8.1 +/-    1.71      12.5 +/-    1.71  0.060 / 0.070
G28     228.8          15.9                6.0 +/-    3.75      14.6 +/-    3.75  0.040 / 0.050
G30     295.4          31.5                5.9 +/-    1.04      10.1 +/-    1.04  0.040 / 0.070