PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/16-01:42:40
G02     45.1           44.9               11.0 +/-    0.49      14.8 +/-    0.49  0.070 / 0.050
G05     101.8          68.8               13.6 +/-    0.46      14.4 +/-    0.46  0.050 / 0.050
G12     189.2          52.9               15.8 +/-    1.90      19.3 +/-    1.90  0.030 / 0.040
G25     274.1          58.0               13.4 +/-    0.85      15.4 +/-    0.85  0.030 / 0.040
G29     315.8          37.3               11.8 +/-    1.25      17.9 +/-    1.25  0.040 / 0.080