Merge pull request #502 from lsst/tickets/DM-29862

DM-29862: Handle case where no bright stars are extracted
lsst · May 10, 2021 · 0c551f4 · 0c551f4
2 parents 62ad60b + d5e3a42
commit 0c551f4
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/python/lsst/pipe/tasks/processBrightStars.py b/python/lsst/pipe/tasks/processBrightStars.py
@@ -448,6 +448,9 @@ def run(self, inputExposure, refObjLoader=None, dataId=None, skyCorr=None):
         self.log.info("Extracting bright stars from exposure %s", dataId)
         # Extract stamps around bright stars
         extractedStamps = self.extractStamps(inputExposure, refObjLoader=refObjLoader)
+        if not extractedStamps.starIms:
+            self.log.info("No suitable bright star found.")
+            return None
         # Warp (and shift, and potentially rotate) them
         self.log.info("Applying warp and/or shift to %i star stamps from exposure %s",
                       len(extractedStamps.starIms), dataId)
@@ -500,4 +503,5 @@ def runQuantum(self, butlerQC, inputRefs, outputRefs):
                                              refCats=inputs.pop("refCat"),
                                              config=self.config.refObjLoader)
         output = self.run(**inputs, refObjLoader=refObjLoader)
-        butlerQC.put(output, outputRefs)
+        if output:
+            butlerQC.put(output, outputRefs)