J-PLUS Data Release DR4
The J-PLUS DR4 Data Release (November 2025) (J-PLUS-DR4) comprises 2563 J-PLUS fields observed in twelve optical bands amounting to ~5000 deg2. J-PLUS DR4 is based on images collected from November 2015 to February 2025 by the JAST80 telescope.
For quick access to the archive and the User's Manual, you can use the following links.
DATA ACCESS: https://archive.cefca.es/catalogues/jplus-dr4
DATA ACCESS MANUAL: Download manual here
PDF DECOM. LEPHARE: Download software here (v1.1)
PDF DECOM. LEMONNADE: Download software here (v1.0)
GLOBAL MASKS: https://archive.cefca.es/catalogues/vo/siap/jplus-dr4/get_global_masks
Scope
| Total area covered | 4950.66 deg2 (4437.49 deg2 after masking) |
| Image size | 11730x11730 pixels |
| Image pixel scale | 0.45 arcsec |
| Total number of fields | 2563 |
| Number of objects in dual catalogue | ~96.9 million (~47.3 million with MAG_AUTO(rSDSS)≤21) |
| Number of objects with estimations of photo-z (with their full PDFs) | ~79.2 million |
| Number of detections in single catalogue | ~786.5 million |
| Size of the database | ~730 GB |
| Number of Single Frames | 96182 |
| Tile Images Total Size (compressed) | ~2.05 TB |
| Single Frames Total Size (compressed) | ~9.06 TB |
Figure 1. Footprint of the pointings observed in this J-PLUS DR4.