adding limitations.rst

lsst · Aug 29, 2024 · 88ac572 · 88ac572
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diff --git a/doc/lsst.ap.verify/limitations.rst b/doc/lsst.ap.verify/limitations.rst
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+.. py:currentmodule:: lsst.ap.verify
+
+.. _ap-verify-request:
+
+########################################
+Known Limitations 
+########################################
+
+mpSkyEphemerisQueryTask
+=======================
+
+The AP pipelines now run :py:class:`lsst.ap.association.MPSkyEphemerisQueryTask`, which includes a request to mpSky.  mpSky is not expected to host ephemerides for all test datasets, so it will often (or always) fail. When requests fail, mpSkyEphemerisQuery should return an empty DataFrame, and no detections will be associated.