PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/11-22:57:50
G02     21.1           64.7               10.5 +/-    0.54      11.5 +/-    0.54  0.030 / 0.050
G05     152.0          52.1               16.0 +/-    0.80      19.7 +/-    0.80  0.030 / 0.060
G06     48.5           23.6                8.6 +/-    0.72      17.5 +/-    0.72  0.040 / 0.050
G12     221.4          78.0               12.9 +/-    0.91      13.1 +/-    0.91  0.030 / 0.050
G19     90.0           18.3               12.2 +/-    0.82      28.1 +/-    0.82  0.020 / 0.030
G25     309.7          44.6                9.3 +/-    1.93      12.5 +/-    1.93  0.030 / 0.030
G29     298.8          19.0               11.7 +/-    2.15      26.3 +/-    2.15  0.090 / 0.210