| Z (lens) | V (max) | Re | Sigma (ap) | Aperture | Sigma (Re/8) | Reference |
| 1.004 | - | 0.31(0.06)" | 304(27)km/s | 0.65" | 328(32)km/s | Koopmans & Treu
(2002, ApJ, 568, L5) |
Z = redshift
V (max) = maximum of the rotation curve
Re = half light radius (effective radius)
Sigma (ap) = velocity dispersion as measured with the spectroscopic
aperture
Aperture = size of the spectroscopic aperture
Sigma (Re/8) = central velocity dispersion, i.e. corrected to an effective
circular aperture of radius Re/8