Benson, K;
Dolding, C;
Flanet, T;
Grenet, C;
Herent, O;
Hudelot, P;
Laigle, C;
... Scott, D; + view all
(2025)
Euclid Quick Data Release (Q1). VIS processing and data products.
Astronomy & Astrophysics
10.1051/0004-6361/202554594.
Preview |
Text
aa54594-25.pdf - Accepted Version Download (3MB) | Preview |
Abstract
This paper describes the VIS PF of the Euclid ground segment pipeline, which processes and calibrates raw data from the VIS camera. We present the algorithms used in each processing element along with a description of the on-orbit performance of VIS PF based on performance verification and Q1 datasets. We demonstrate that the principal performance metrics (image quality, astrometric accuracy, photometric calibration) are within pre-launch specifications. The image-to-image photometric scatter is less than percent and absolute astrometric accuracy compared to Gaia is 5,mas. Image quality is stable over all Q1 images, with a FWHM of . The stacked images (combining four nominal and two short exposures) reach IE=25.6 ($10,σ$, measured as the variance of diameter apertures). We also describe quality control metrics provided with each image, and an appendix provides a detailed description of the provided data products. The excellent quality of these images demonstrates the immense potential of Euclid VIS data for weak lensing. VIS data covering most of the extragalactic sky will provide a lasting high-resolution atlas of the Universe.
| Type: | Article |
|---|---|
| Title: | Euclid Quick Data Release (Q1). VIS processing and data products |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1051/0004-6361/202554594 |
| Publisher version: | https://doi.org/10.1051/0004-6361/202554594 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10218406 |
Archive Staff Only
 |
View Item |
