PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/20-14:58:00
G01     238.2          28.2               10.2 +/-    1.92      18.5 +/-    1.92  0.150 / 0.130
G03     309.8          59.1                7.5 +/-    1.33       8.6 +/-    1.33  0.210 / 0.130
G14     72.5           32.9                8.2 +/-    1.69      13.5 +/-    1.69  0.100 / 0.150
G16     161.5          26.1               10.8 +/-    1.01      20.6 +/-    1.01  0.140 / 0.130
G18     210.1          17.0                9.3 +/-    1.85      21.9 +/-    1.85  0.060 / 0.120
G22     262.0          77.0                9.8 +/-    1.10      10.0 +/-    1.10  0.070 / 0.130
G23     295.3          26.2                8.2 +/-    3.81      15.6 +/-    3.81  0.040 / 0.060
G26     129.1          46.4               10.0 +/-    1.11      13.3 +/-    1.11  0.040 / 0.040
G31     40.7           48.5                7.1 +/-    0.64       9.1 +/-    0.64  0.040 / 0.030
G32     85.2           19.3                7.1 +/-    2.25      15.9 +/-    2.25  0.030 / 0.030