PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/14-17:12:40
G07     325.7          56.1                9.5 +/-    0.72      11.2 +/-    0.72  0.030 / 0.040
G08     115.0          47.0               10.2 +/-    0.45      13.4 +/-    0.45  0.030 / 0.050
G09     249.0          82.7               11.9 +/-    0.46      11.9 +/-    0.46  0.040 / 0.020
G16     43.4           19.4                8.0 +/-    2.75      17.9 +/-    2.75  0.040 / 0.020
G23     150.8          53.8               10.9 +/-    0.41      13.2 +/-    0.41  0.310 / 0.270
G27     69.2           36.9                9.6 +/-    1.14      14.7 +/-    1.14  0.150 / 0.220
G28     228.6          16.4               11.2 +/-    2.20      26.9 +/-    2.20  0.140 / 0.100
G30     293.9          29.2                9.1 +/-    1.47      16.3 +/-    1.47  0.160 / 0.100