This task creates model particle background spectra and images (if
selected with a non-zero energy range) for the selected region from
the intermediate files produced from
mosspectra. The resultant
image is in detector coordinates which is then transformed into sky
coordinates by the SAS task
rotdet2sky.
mosback creates a
QDP plot file which shows the source and model background spectra for
the observation. Any enhancement of the data over the particle
background model at higher energies probably indicates residual soft
proton contamination, unless there are really hard and bright sources
in the field. This task was originally a subtask of the SAS
esas
task named
mos_back prior to SAS-21 and retains all of its
functionality.
![[none]](../icons/dprev.gif){kind=icon}
