PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/02-03:13:10
G02     57.3           34.1                6.0 +/-    0.88       9.7 +/-    0.88  0.040 / 0.100
G05     62.5           62.6                6.7 +/-    0.18       7.4 +/-    0.18  0.040 / 0.080
G12     185.6          36.6                9.9 +/-    2.59      15.3 +/-    2.59  0.030 / 0.040
G13     131.3          12.7                7.6 +/-    4.11      20.0 +/-    4.11  0.030 / 0.040
G20     215.9          19.6               13.2 +/-    2.51      29.2 +/-    2.51  0.150 / 0.520
G21     268.3          14.9               10.7 +/-    1.38      26.8 +/-    1.38  0.170 / 0.410
G25     244.2          54.3               10.0 +/-    0.66      12.0 +/-    0.66  0.050 / 0.090
G29     325.5          50.5                9.4 +/-    1.34      11.8 +/-    1.34  0.050 / 0.090