Roman Ultra Deep Field
sim_udf_f184_024 · GO-1042 · WFI SCA13
Procedural preview
Not sky data · awaiting first light
1:1 footprint
7.5′ across
0 sources drawn
Band
Stretch
Gain 1.00×
Drag to pan, scroll to zoom, double-click to zoom in. Arrow keys pan, + and − zoom, 0 resets. Switching bands re-colours the same patch of sky rather than replacing it, so you can blink between filters the way you would with real multiband imaging.
About this field
Pointed at the Hubble Ultra Deep Field. Roman covers in a single exposure a patch of sky that took Hubble hundreds of orbits, with the same angular resolution.
Product status
A pre-flight simulation product. Generated on the ground to build and test the calibration pipeline before launch — useful for developing analysis code, but it is synthetic, not sky.
Exposure
Pointing
Band
Reaches past the H band for the highest-redshift sources.
Access
Roman products are distributed through MAST at STScI. Files follow the naming convention below; nothing is downloadable from this site.
sim_udf_f184_024_l2.asdf
Open MASTMore of Roman Ultra Deep Field
All products in this field →The image above is procedurally generated. Source positions, colours and crowding are derived from the field's galactic latitude and character and from the band's pivot wavelength, and every exposure of a field draws the same sky so dithers line up — but none of it is data from the telescope.