Merge pull request #296 from lsst/tickets/DM-26476

DM-26476: Add observation reason to exposure and visit registry
lsst · Sep 30, 2020 · 885a4e5 · 885a4e5
2 parents 2b8b609 + 4fc4f68
commit 885a4e5
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diff --git a/python/lsst/obs/base/_instrument.py b/python/lsst/obs/base/_instrument.py
@@ -721,6 +721,7 @@ def makeExposureRecordFromObsInfo(obsInfo, universe):
         exposure_time=obsInfo.exposure_time.to_value("s"),
         dark_time=obsInfo.dark_time.to_value("s"),
         observation_type=obsInfo.observation_type,
+        observation_reason=obsInfo.observation_reason,
         physical_filter=obsInfo.physical_filter,
         science_program=obsInfo.science_program,
         target_name=obsInfo.object,

diff --git a/python/lsst/obs/base/defineVisits.py b/python/lsst/obs/base/defineVisits.py
@@ -379,6 +379,11 @@ def _buildVisitRecords(self, definition: VisitDefinitionData, *,
                                     (e.target_name for e in definition.exposures))
         science_program = _reduceOrNone(lambda a, b: a if a == b else None,
                                         (e.science_program for e in definition.exposures))
+        observation_reason = _reduceOrNone(lambda a, b: a if a == b else None,
+                                           (e.observation_reason for e in definition.exposures))
+        if observation_reason is None:
+            # Be explicit about there being multiple reasons
+            observation_reason = "various"
 
         # Use the mean zenith angle as an approximation
         zenith_angle = _reduceOrNone(sum, (e.zenith_angle for e in definition.exposures))
@@ -394,6 +399,7 @@ def _buildVisitRecords(self, definition: VisitDefinitionData, *,
                 physical_filter=physical_filter,
                 target_name=target_name,
                 science_program=science_program,
+                observation_reason=observation_reason,
                 zenith_angle=zenith_angle,
                 visit_system=self.groupExposures.getVisitSystem()[0],
                 exposure_time=exposure_time,