PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/05-21:57:50
G02     37.3           51.9               15.7 +/-    0.36      19.4 +/-    0.36  0.030 / 0.040
G05     126.0          66.4               18.2 +/-    0.94      19.6 +/-    0.94  0.030 / 0.050
G06     57.4           10.3               11.5 +/-    2.08      32.0 +/-    2.08  0.030 / 0.050
G12     189.5          59.5               19.8 +/-    1.52      22.6 +/-    1.52  0.030 / 0.050
G25     287.4          56.6               15.9 +/-    1.42      18.7 +/-    1.42  0.040 / 0.050
G29     310.6          31.1               14.3 +/-    1.44      24.5 +/-    1.44  0.040 / 0.060