https://spdf.gsfc.nasa.gov/pub/data/ibex/hi/maps/images/release_2/map_combined1_2/ibex_hi_maps_image_release2_mapcombined_readme.txt

This directory holds Release 2 Compton-Getting-corrected 
heliosphere-frame ENA flux maps and related files, accumulated 
over Epochs 1 and 2 combined (12/2008 - 12/2009), in PNG format 
for viewing, at each of five energy points (0.71, 1.11, 1.74, 
2.73, 4.29 keV)

For each of the five monoenergetic points, there are three 
PNG files:

  - the "flux" file gives the ENA flux per bin
  - the "fsnr" file gives the S/N ratio of the flux per bin
  - the "fvar" file gives the variance of the flux per bin

The images show color-coded intensities of the relevant
parameter in 6 deg x 6 deg bins in J2000 ecliptic coordinates.

Txt-formatted digital versions of the images are available at
https://spdf.gsfc.nasa.gov/pub/data/ibex/hi/maps/digital_data/release_2/map_combined1_2/

See 
https://ibex.princeton.edu/sites/g/files/toruqf1596/files/data_release_2_desc.txt
for further detail.