PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/26-19:12:30
G07     358.2          64.7               10.9 +/-    0.41      11.9 +/-    0.41  0.040 / 0.030
G08     82.2           51.7               10.8 +/-    1.10      13.4 +/-    1.10  0.030 / 0.040
G09     185.1          65.5               11.6 +/-    0.41      12.6 +/-    0.41  0.030 / 0.030
G11     138.9          19.5               11.4 +/-    2.32      25.3 +/-    2.32  0.030 / 0.030
G23     158.2          33.9               12.1 +/-    1.18      19.7 +/-    1.18  0.070 / 0.160
G27     49.4           28.4                8.0 +/-    2.14      14.4 +/-    2.14  0.130 / 0.140
G28     242.7          32.2               14.4 +/-    2.06      24.1 +/-    2.06  0.090 / 0.160
G30     309.1          41.5                9.9 +/-    1.32      14.0 +/-    1.32  0.070 / 0.140