PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/25-01:12:30
G02     291.6          82.0                8.5 +/-    0.74       8.6 +/-    0.74  0.040 / 0.040
G05     167.1          25.1               14.6 +/-    1.12      28.4 +/-    1.12  0.060 / 0.060
G06     40.0           49.4                9.3 +/-    0.85      11.8 +/-    0.85  0.030 / 0.030
G12     320.0          61.0                8.9 +/-    0.98      10.0 +/-    0.98  0.030 / 0.030
G17     76.4           20.7               10.0 +/-    1.46      21.6 +/-    1.46  0.110 / 0.120
G19     65.4           34.0               10.4 +/-    1.10      16.9 +/-    1.10  0.100 / 0.130
G24     236.5          29.3               13.5 +/-    1.99      24.0 +/-    1.99  0.130 / 0.120
G25     317.8          19.3                7.6 +/-    2.31      17.0 +/-    2.31  0.080 / 0.130