UNIONS position sample
Progress of the DR6 full-footprint catalogue campaign — forced photometry and redshifts.
Snapshot generated 2026-07-06 10:25 CEST (Paris) · 04:25 EDT (Waterloo) · live disk state, preliminary.
Sky coverage
Completed photometry
Tractor forced-photometry / co-adds — cells with a .ok.
| Wave | Photometry finished | of planned | Fully-complete sub-regions | Redshifts finalised |
|---|---|---|---|---|
| Wave 1 (ranks 0–9) | 1,111 deg² 2,033,468 objects |
10 (100%) | 10 = 1,111 deg² (r000, r001, r002, r003, r004, r005, r006, r007, r008, r009) | 10 = 1,111 deg², 2,033,468 objects (r000, r001, r002, r003, r004, r005, r006, r007, r008, r009) |
| Wave 2 (ranks 10–29) | 2,227 deg² 3,872,204 objects |
20 (100%) | 20 = 2,227 deg² (r010, r011, r012, r013, r014, r015, r016, r017, r018, r019, r020, r021, r022, r023, r024, r025, r026, r027, r028, r029) | 20 = 2,227 deg², 3,872,204 objects (r010, r011, r012, r013, r014, r015, r016, r017, r018, r019, r020, r021, r022, r023, r024, r025, r026, r027, r028, r029) |
| Combined | ~3,338 deg² ~5,905,672 objects |
64 | 30 = 3,338 deg² | 30 = 3,338 deg², 5,905,672 objects |
The area and object count in each row are cell-weighted
— the actual sky area (and estimated number of objects) whose photometry
is done (summing each sub-region's area / object count × fraction of its
cells extracted), so they count partially-done sub-regions too. The
redshifts finalised object count is exact (objects delivered into
combine_full.parquet). The fully-complete column is the
stricter set where all cells are done
(those are the ones eligible to finalise into combine_full.parquet);
redshifts finalised is the subset already delivered as z_est.
- Cells: wave 1 at 160/160, wave 2 at 316/316.
- Finalised redshifts: 30 sub-regions,
3,338 deg², 5,905,672 galaxies delivered into
combine_full.parquet.
Per-sub-region detail
| Sub-region | Area | Cells | Photometry | Redshifts | spec-z |
|---|---|---|---|---|---|
| r000 | 108 deg² | 16/16 | complete | finalised | ✓ |
| r001 | 108 deg² | 16/16 | complete | finalised | ✓ |
| r002 | 114 deg² | 16/16 | complete | finalised | ✓ |
| r003 | 114 deg² | 16/16 | complete | finalised | ✓ |
| r004 | 114 deg² | 16/16 | complete | finalised | ✓ |
| r005 | 114 deg² | 16/16 | complete | finalised | ✓ |
| r006 | 108 deg² | 16/16 | complete | finalised | ✓ |
| r007 | 114 deg² | 16/16 | complete | finalised | ✓ |
| r008 | 108 deg² | 16/16 | complete | finalised | ✓ |
| r009 | 108 deg² | 16/16 | complete | finalised | ✓ |
| r010 | 114 deg² | 16/16 | complete | finalised | ✓ |
| r011 | 114 deg² | 16/16 | complete | finalised | ✓ |
| r012 | 114 deg² | 16/16 | complete | finalised | ✓ |
| r013 | 114 deg² | 16/16 | complete | finalised | ✓ |
| r014 | 114 deg² | 16/16 | complete | finalised | ✓ |
| r015 | 108 deg² | 16/16 | complete | finalised | ✓ |
| r016 | 108 deg² | 16/16 | complete | finalised | ✓ |
| r017 | 108 deg² | 16/16 | complete | finalised | ✓ |
| r018 | 108 deg² | 16/16 | complete | finalised | ✓ |
| r019 | 114 deg² | 16/16 | complete | finalised | ✓ |
| r020 | 114 deg² | 16/16 | complete | finalised | ✓ |
| r021 | 114 deg² | 16/16 | complete | finalised | ✓ |
| r022 | 114 deg² | 16/16 | complete | finalised | ✓ |
| r023 | 114 deg² | 16/16 | complete | finalised | ✓ |
| r024 | 114 deg² | 16/16 | complete | finalised | ✓ |
| r025 | 114 deg² | 16/16 | complete | finalised | ✓ |
| r026 | 108 deg² | 16/16 | complete | finalised | ✓ |
| r027 | 108 deg² | 16/16 | complete | finalised | ✓ |
| r028 | 101 deg² | 12/12 | complete | finalised | ✓ |
| r029 | 108 deg² | 16/16 | complete | finalised | ✓ |