  The BATSE mission aboard CGRO observed the whole sky for 9 years in the 20
keV - 2 MeV energy band. Flat-fielding of the temporal variations in the
background present in the data set has been accomplished through a GEANT3
Monte-Carlo simulation - the BATSE Mass Model (BAMM). The Earth Occultation
technique (EOT) is used together with a maximum-likelihood imaging approach to
construct all-sky maps with ~mCrab sensitivity. Additionally, a non-linear
CLEAN algorithm is applied to the all-sky maps to remove large artefacts that
are systematic of the EOT. The latest survey results produced through the
application of this technique to a subset of the BATSE data set are presented.
