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.