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The Hubble Space Telescope Frontier Fields

Abell 2744

MACS J0416.1-2403

MACS J0717.5+3745

MACS J1149.5+2223

Abell S1063

Abell 370

This is the primary Archive website for accessing all the Hubble Space Telescope Frontier Fields program data, which is a new initiative of six deep fields centered on strong lensing galaxy clusters (drawn from Abell et al. 1989) and the MACS survey (Ebeling et al. 2001), in parallel with six deep "blank fields" adjacent to these clusters. Please refer also to the main Frontier Fields project website where additional information is presented about the project, the team, and links to a blog. The program devotes 140 orbits to each cluster/blank field pair, imaging them to AB ≈ 28.7-29 mag with ACS (F435W, F606W, F814W) and and WFC3/IR (F105W, F125W, F140W, F160W). We are providing a variety of products for these clusters, including:

Also please visit the Spitzer Frontier Fields website for access to all the Spitzer data on the Frontier Fields.

Latest news:

July 23, 2014: HST V1.0 mosaics released for Epoch 2 of Abell 2744

We are pleased to announce the Version 1.0 release of Epoch 2 of Abell 2744, after the completion of all the ACS and WFC3/IR imaging on the main cluster and parallel field from our Frontier Fields program (13495, PI: J. Lotz), in addition to imaging from programs 11689 (PI: R. Dupke), 13386 (PI: S. Rodney), and 13389 (PI: B. Siana). These v1.0 mosaics have been fully recalibrated relative to the v0.5 mosaics that we have been releasing regularly throughout the course of this epoch during May, June and July 2014. For ACS, the v1.0 mosaics incorporate new bias and dark current reference files, along with CTE correction and bias destriping, and also include a set of mosaics that have been processed with the new selfcal approach to better account for the low-level dark current structure. The WFC3/IR v1.0 mosaics have improved masking for persistence and bad pixels, and in addition include a set of mosaics that have been corrected for time-variable sky emission that can occur during the orbit and can otherwise impact the up-the-ramp count-rate fitting if not properly corrected. Further details are provided in the readme file, which can be obtained along with all the mosaics at the following location:

Current HST observing schedule for these fields: (click the graphic for an interactive version):

Access to all HST data on these fields:

  • Via your browser: is the starting navigation point to all the data on these clusters.
  • FTP:
    ftp and login as anonymous.
    cd /pub/hlsp/frontier
    From there you can navigate through the site to find the field and data of interest.
  • WGET
    You can download whole directories of data using wget commands like:
    wget -nH --cut-dirs=5 -r -l0 -c -N -np -R 'index*' -erobots=off

Cluster Name z Cluster Parallel Field HST
RA Dec RA Dec
Year 1:
Abell 2744 0.308 00:14:21.2 -30:23:50.1 00:13:53.6 -30:22:54.3 Abell 2744 Display
MACSJ0416.1-2403 0.396 04:16:08.9 -24:04:28.7 04:16:33.1 -24:06:48.7 MACSJ0416-2403 Display
Year 2:
MACSJ0717.5+3745 0.545 07:17:34.0 +37:44:49.0 07:17:17.0 +37:49:47.3 MACSJ0717+3745 Display
MACSJ1149.5+2223 0.543 11:49:36.3 +22:23:58.1 11:49:40.5 +22:18:02.3 MACSJ1149+2223 Display
Year 3:
Abell S1063
0.348 22:48:44.4 -44:31:48.5 22:49:17.7 -44:32:43.8 Abell S1063 Display
Abell 370 0.375 02:39:52.9 -01:34:36.5 02:40:13.4 -01:37:32.8 Abell 370 Display


Abell, G. O., Corwin, H. G., Jr., & Olowin, R. P. 1989, ApJS, 701, 1

Ebeling, H., Edge, A. C., Bohringer, H. et al. 1998, MNRAS, 301, 881

Ebeling, H., Edge, A. C. & Henry, J. P. 2001, ApJ, 553, 668