PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/24-18:43:00
G01     114.5          20.4               13.8 +/-    1.16      30.1 +/-    1.16  0.030 / 0.060
G07     98.3           58.1               12.7 +/-    0.60      14.6 +/-    0.60  0.040 / 0.060
G08     43.2           27.0               10.5 +/-    1.14      19.6 +/-    1.14  0.040 / 0.040
G09     177.0          22.8               13.1 +/-    1.31      26.8 +/-    1.31  0.050 / 0.060
G11     99.0           42.0               13.9 +/-    0.50      19.6 +/-    0.50  0.030 / 0.040
G13     315.0          23.7               10.4 +/-    2.10      20.9 +/-    2.10  0.040 / 0.040
G17     202.1          29.6               15.0 +/-    1.22      26.4 +/-    1.22  0.080 / 0.170
G18     87.2           22.1               11.8 +/-    1.43      24.7 +/-    1.43  0.080 / 0.160
G28     293.7          56.4               11.8 +/-    0.73      13.8 +/-    0.73  0.070 / 0.260
G30     1.0            73.5               12.4 +/-    0.51      12.9 +/-    0.51  0.080 / 0.240