PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/19-01:13:10
G02     4.6            73.4                8.2 +/-    0.62       8.5 +/-    0.62  0.020 / 0.030
G05     160.2          40.2               11.7 +/-    1.07      17.0 +/-    1.07  0.030 / 0.030
G06     42.1           37.7                6.5 +/-    0.88       9.8 +/-    0.88  0.190 / 0.470
G12     302.0          73.9                8.9 +/-    0.49       9.2 +/-    0.49  0.170 / 0.420
G19     80.2           23.2                9.2 +/-    1.48      18.7 +/-    1.48  0.100 / 0.100
G24     222.7          18.1               14.1 +/-    1.80      32.5 +/-    1.80  0.090 / 0.110
G25     315.4          35.2                8.7 +/-    1.39      13.7 +/-    1.39  0.050 / 0.070
G29     292.0          16.1                8.3 +/-    1.78      20.2 +/-    1.78  0.040 / 0.070