Download

All SPAM data products are FITS binary tables with embedded column descriptions and units. Version 0.99. See the README for full documentation.

CITATIONIf you use SPAM data products, please cite Larson & Davis et al. 2026.
↓ Tutorial notebook
PROGRAMS INCLUDEDCEERSSPAMMINERVACAPERS
README
Column descriptions, data model, selection criteria, and version history
ceers_unicorn.readme
25 KB↓ Download
Photometry
Source positions, morphology, fluxes in all filters (Kron + 12 circular apertures; ext 2 lists aperture diameters)
ceers_photom_v0.99.fits2 ext
2.7 GB↓ Download
Photo-z — Fiducial
Fiducial photometric redshifts (LAZY, SFHZ + Larson22 templates)
Photoz/ceers_photz_v0.99.fits4 ext
2.8 GB↓ Download
Photo-z — EELG
Photo-z with extreme-emission-line-galaxy template set
Photoz_eelg/ceers_photz_v0.99.fits4 ext
2.8 GB↓ Download
Photo-z — Circles
Photo-z using circular-aperture photometry
Photoz_Circles/ceers_photz_v0.99.fits4 ext
2.8 GB↓ Download
Photo-z — Broadband
Photo-z using broad-band filters only (medium bands excluded)
Photoz_BBonly/ceers_photz_v0.99.fits4 ext
2.8 GB↓ Download
Photo-z — WFC3
Photo-z including HST WFC3 aperture photometry
Photoz_WFC3/ceers_photz_v0.99.fits4 ext
2.8 GB↓ Download
Selected Sample
High-confidence galaxy sample with inspection flags and redshift assignments
ceers_selected_v0.99.fits1 ext
5.0 MB↓ Download
Detection Flags
Per-source detection criteria (SNR, Lyman-break, error-map, edge)
Flags/ceers_detectionflags_v0.99.fits1 ext
6.0 MB↓ Download
Selection Flags
Per-source photo-z selection criteria (int P(z), za, chi², dchi², sample)
Flags/ceers_selectionflags_v0.99.fits1 ext
22 MB↓ Download
Segmentation Map
Source-Extractor segmentation map (gzipped FITS image)
segmap_ceers_v0.99.fits.gz
14 MB↓ Download
PSFs
Empirical point-spread functions per filter (tar.gz)
ceers_psfs_v0.99.tar.gz
2.0 MB↓ Download
5σ Depths
Per-filter 5σ point-source depths
ceers_5sig-depths_v0.99.txt
1 KB↓ Download
Survey Area
Effective survey area per filter (arcmin²)
ceers_area.txt
1 KB↓ Download
Completeness
Point-source completeness vs. magnitude, per depth tier
ceers_pointsource_completeness_v0.99.txt
35 KB↓ Download
Templates — Fiducial
LAZY SED template library used for fiducial photo-z fits
unicorn_templates_fiducial.fits
1.2 GB↓ Download
Templates — EELG
LAZY SED template library for the EELG photo-z variant
unicorn_templates_eelg.fits
1.3 GB↓ Download
Templates — LRD
LAZY SED template library for the LRD photo-z variant
unicorn_templates_lrd.fits
1.4 GB↓ Download

PHOTO-Z FILE STRUCTURE

Ext 1Single-value quantities: ZA, ZM, confidence intervals, integrated P(z), COEFFSExt 2Best-fit model fluxes per filter (nJy) from Lazy.jl at z_aExt 3Full P(z): ZGRID (1751 pts), PZ, CHI2Ext 4Low-z P(z): ZGRID_LOWZ (351 pts, z<7), PZ_LOWZ