PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/25-18:43:10
G07     330.8          57.8               11.9 +/-    0.47      13.8 +/-    0.47  0.040 / 0.040
G08     108.0          49.1               15.0 +/-    0.52      19.1 +/-    0.52  0.030 / 0.040
G09     215.8          80.8               13.9 +/-    0.30      14.1 +/-    0.30  0.210 / 0.490
G16     44.3           16.9               10.1 +/-    3.16      24.0 +/-    3.16  0.220 / 0.420
G23     153.2          50.0               15.2 +/-    0.41      19.2 +/-    0.41  0.020 / 0.020
G27     64.4           35.9               13.3 +/-    1.22      20.7 +/-    1.22  0.030 / 0.020
G28     231.3          20.2               14.4 +/-    2.34      31.5 +/-    2.34  0.060 / 0.070
G30     296.8          31.3               12.2 +/-    1.72      20.9 +/-    1.72  0.060 / 0.060