PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/03-01:42:50
G02     213.9          60.0                9.9 +/-    0.96      11.3 +/-    0.96  0.100 / 0.100
G06     64.4           76.6                7.3 +/-    0.42       7.5 +/-    0.42  0.070 / 0.120
G12     317.8          33.6                6.1 +/-    1.52       9.9 +/-    1.52  0.130 / 0.090
G17     53.5           36.8                6.6 +/-    1.15      10.1 +/-    1.15  0.150 / 0.100
G19     36.6           50.8                6.8 +/-    1.93       8.4 +/-    1.93  0.040 / 0.020
G24     268.5          41.9                9.6 +/-    2.63      13.6 +/-    2.63  0.040 / 0.030
G28     121.6          14.6               10.4 +/-    3.11      26.1 +/-    3.11  0.190 / 0.300