PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/29-00:42:40
G02     42.2           47.5               10.9 +/-    0.61      14.2 +/-    0.61  0.040 / 0.050
G05     111.8          68.3               12.3 +/-    1.04      13.1 +/-    1.04  0.040 / 0.050
G12     189.8          55.9               12.9 +/-    1.32      15.2 +/-    1.32  0.040 / 0.040
G25     280.1          57.5               11.9 +/-    0.98      13.8 +/-    0.98  0.040 / 0.040
G29     313.7          34.7               12.1 +/-    1.91      19.3 +/-    1.91  0.060 / 0.070