Star-catalogue depth (r<22→r<23) and PSF-selection bias from flux-radius cut

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#840 opened on Jul 15, 2026 0 comments 0 reactions 1 assignee View on GitHub

@calumhrmurray is already working on this.

Since Jul 15, 2026.

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Description

From the Paris meeting (Fri 2pm): the flux-radius star selection shows a PSF-size residual bias centred ~−0.15 — investigate, with a Gaia cross-check as the obvious control. Related question: is extending the star catalogue r<22→r<23 useful (SPHEREx star flags vs stellar locus)?

Context: Paris meeting notes

Dominant language: Python
Stars: 18
Forks: 14
Avg merge: 8h 40m
Merged PRs (30d): 10

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