PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/29-20:58:00
G01     101.9          27.5               12.9 +/-    0.83      23.8 +/-    0.83  0.030 / 0.040
G07     115.7          49.2               13.5 +/-    0.48      17.2 +/-    0.48  0.040 / 0.050
G08     41.5           15.2                6.9 +/-    2.23      17.2 +/-    2.23  0.210 / 0.440
G09     174.4          10.6               14.6 +/-    2.58      40.3 +/-    2.58  0.190 / 0.420
G11     80.5           42.5               11.2 +/-    1.97      15.7 +/-    1.97  0.100 / 0.180
G13     305.3          32.1               11.3 +/-    1.65      19.0 +/-    1.65  0.060 / 0.170
G17     206.8          43.8               14.3 +/-    0.91      19.6 +/-    0.91  0.040 / 0.050
G18     72.5           23.8               10.4 +/-    1.60      20.9 +/-    1.60  0.050 / 0.060
G28     318.7          60.4               10.9 +/-    0.74      12.4 +/-    0.74  0.030 / 0.020
G30     53.1           79.6               12.4 +/-    0.44      12.5 +/-    0.44  0.030 / 0.020