PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/19-00:58:10
G02     203.4          37.1                8.3 +/-    0.99      12.7 +/-    0.99  0.090 / 0.080
G06     168.0          67.4                8.4 +/-    0.60       9.1 +/-    0.60  0.110 / 0.120
G12     307.3          14.2                3.8 +/-    3.18       9.7 +/-    3.18  0.090 / 0.250
G17     38.8           46.6                6.6 +/-    0.98       8.7 +/-    0.98  0.190 / 0.330
G19     3.7            64.5                7.1 +/-    0.77       7.8 +/-    0.77  0.060 / 0.130
G24     294.1          40.1               10.5 +/-    6.32      15.2 +/-    6.32  0.070 / 0.120
G28     102.0          33.4                8.0 +/-    0.84      13.1 +/-    0.84  0.040 / 0.030