PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/15-17:27:40
G03     197.7          42.5               14.3 +/-    1.79      20.0 +/-    1.79  0.050 / 0.180
G07     270.3          28.1               11.5 +/-    2.46      21.0 +/-    2.46  0.110 / 0.190
G09     316.1          39.2                9.8 +/-    1.19      14.5 +/-    1.19  0.070 / 0.130
G16     71.9           64.2               12.0 +/-    0.34      13.2 +/-    0.34  0.070 / 0.140
G22     182.2          25.3               11.2 +/-    1.16      21.7 +/-    1.16  0.070 / 0.070
G23     344.0          71.3               10.8 +/-    0.86      11.3 +/-    0.86  0.050 / 0.080
G26     47.0           35.8                9.5 +/-    0.64      14.9 +/-    0.64  0.040 / 0.050
G27     125.7          19.2               14.0 +/-    1.66      31.4 +/-    1.66  0.040 / 0.050