PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/11-20:13:10
G07     356.6          64.5               12.1 +/-    0.75      13.2 +/-    0.75  0.040 / 0.040
G08     82.0           51.5               11.3 +/-    1.20      14.0 +/-    1.20  0.030 / 0.040
G09     184.7          65.5               11.9 +/-    0.37      13.0 +/-    0.37  0.100 / 0.160
G11     138.9          19.4               13.4 +/-    1.19      30.0 +/-    1.19  0.100 / 0.110
G23     158.4          34.5               13.5 +/-    1.03      21.6 +/-    1.03  0.030 / 0.030
G27     49.7           28.7                9.2 +/-    1.89      16.5 +/-    1.89  0.030 / 0.020
G28     242.6          32.4               12.9 +/-    1.69      21.6 +/-    1.69  0.100 / 0.170
G30     308.7          41.0               11.1 +/-    1.66      15.9 +/-    1.66  0.090 / 0.090