PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/09-01:57:50
G02     40.2           49.3               10.1 +/-    0.66      12.9 +/-    0.66  0.030 / 0.030
G05     119.8          67.1               11.3 +/-    0.44      12.1 +/-    0.44  0.040 / 0.050
G06     57.9           10.4                8.5 +/-    2.50      23.6 +/-    2.50  0.020 / 0.040
G12     192.5          60.0               11.7 +/-    1.00      13.3 +/-    1.00  0.020 / 0.050
G25     286.4          56.4               10.3 +/-    0.87      12.1 +/-    0.87  0.030 / 0.050
G29     311.8          32.5                8.8 +/-    1.51      14.7 +/-    1.51  0.030 / 0.060