PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/08-00:27:40
G02     24.8           61.8                9.6 +/-    0.77      10.7 +/-    0.77  0.060 / 0.080
G05     149.2          54.5               13.2 +/-    0.77      15.9 +/-    0.77  0.060 / 0.070
G06     48.2           24.7                9.2 +/-    1.48      18.0 +/-    1.48  0.030 / 0.040
G12     232.2          77.5               10.6 +/-    0.46      10.8 +/-    0.46  0.030 / 0.050
G19     92.6           14.5               11.4 +/-    1.81      28.8 +/-    1.81  0.020 / 0.040
G25     307.2          47.2               11.0 +/-    0.87      14.4 +/-    0.87  0.030 / 0.030
G29     302.3          24.6               11.0 +/-    0.96      21.6 +/-    0.96  0.040 / 0.040