PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/19-23:12:30
G02     62.7           29.9                7.0 +/-    0.62      12.2 +/-    0.62  0.100 / 0.250
G05     52.5           56.6                7.2 +/-    0.36       8.5 +/-    0.36  0.090 / 0.260
G12     184.8          30.1               10.0 +/-    1.32      17.5 +/-    1.32  0.050 / 0.080
G13     123.5          17.7               10.8 +/-    1.73      25.1 +/-    1.73  0.050 / 0.080
G15     160.7          16.2               11.2 +/-    1.63      27.1 +/-    1.63  0.070 / 0.120
G21     275.0          19.6               11.2 +/-    0.96      24.8 +/-    0.96  0.090 / 0.140
G25     231.5          49.1               11.4 +/-    1.78      14.6 +/-    1.78  0.060 / 0.130
G29     333.4          60.2                9.3 +/-    0.53      10.6 +/-    0.53  0.040 / 0.120