We provide WFPC2 near-UV (F300W) images of the Hubble Ultra-Deep Field (HUDF).
These data will be presented in Voyer et al. (2008). The HUDF data are comprised
of 24 images (1200s each) for a total of 12 orbits. The images were taken at 4 roll
angles to attain more uniform depth across the field of view.
The science images are in counts/sec and the zeropoint is 20.77 (AB). Thus, to convert
a total flux (ind counts/sec) to a magnitude, m_300w(AB) = 20.77-2.5*log(flux).
The error (in counts/sec) at each pixel is 1/sqrt(wgt) where wgt is the value of the
weight map at that pixel. To get an error for the entire aperture, simply add the
individual pixel errors in quadrature.