PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/26-01:12:30
G02     305.4          81.9               10.7 +/-    0.53      10.8 +/-    0.53  0.040 / 0.050
G05     166.4          26.9               16.5 +/-    2.13      30.9 +/-    2.13  0.030 / 0.050
G06     40.2           47.5                9.9 +/-    1.15      12.9 +/-    1.15  0.040 / 0.060
G12     319.1          63.0               11.4 +/-    1.03      12.7 +/-    1.03  0.030 / 0.030
G17     78.0           19.6               11.7 +/-    1.31      26.1 +/-    1.31  0.080 / 0.110
G19     67.1           32.9               11.6 +/-    1.36      19.1 +/-    1.36  0.060 / 0.090
G24     234.9          28.1               13.4 +/-    0.90      24.4 +/-    0.90  0.260 / 0.230
G25     317.8          20.9               10.1 +/-    2.13      21.7 +/-    2.13  0.270 / 0.220