Update absolute separation default. (#1352)

spacetelescope · Aug 8, 2024 · c0e726a · c0e726a
2 parents 3189a0a + f180f84
commit c0e726a
Show file tree

Hide file tree

Showing 2 changed files with 3 additions and 1 deletion.
diff --git a/CHANGES.rst b/CHANGES.rst
@@ -69,6 +69,8 @@ tweakreg
 --------
 - Remove unnecessary global variable ALIGN_TO_ABS_REFCAT. [#1314]
 
+- Update default absolute separation for tweakreg. [#1352]
+
 
 0.15.1 (2024-05-15)
 ===================

diff --git a/romancal/tweakreg/tweakreg_step.py b/romancal/tweakreg/tweakreg_step.py
@@ -70,7 +70,7 @@ class TweakRegStep(RomanStep):
  abs_searchrad = float(default=6.0) # The search radius in arcsec for a match when performing absolute astrometry
  # We encourage setting this parameter to True. Otherwise, xoffset and yoffset will be set to zero.
  abs_use2dhist = boolean(default=True) # Use 2D histogram to find initial offset when performing absolute astrometry?
- abs_separation = float(default=0.1) # Minimum object separation in arcsec when performing absolute astrometry
+ abs_separation = float(default=1.0) # Minimum object separation in arcsec when performing absolute astrometry
  abs_tolerance = float(default=0.7) # Matching tolerance for xyxymatch in arcsec when performing absolute astrometry
  # Fitting geometry when performing absolute astrometry
  abs_fitgeometry = option('shift', 'rshift', 'rscale', 'general', default='rshift')