The upper limit on the planet's mass is 3.8 times the mass of Jupiter. The best fit radius is 0.81 times that of Jupiter, but the uncertainty in this value is large, around 12%. It orbits at an average distance of 8,200,000 km (0.055 AU) from the parent star, taking 4.2 days to revolve around it.
HST SWEEPS-4 2006
Radial Velocities of SWEEPS-04 (UVES-VLT)
Artist's impression of a transiting Jupiter-mass exoplanet SWEEPS J175853.92-291120.6 b