diff --git a/python/lsst/pipe/tasks/healSparseMappingProperties.py b/python/lsst/pipe/tasks/healSparseMappingProperties.py
index 0b5ac362d..5b0655949 100644
--- a/python/lsst/pipe/tasks/healSparseMappingProperties.py
+++ b/python/lsst/pipe/tasks/healSparseMappingProperties.py
@@ -410,6 +410,8 @@ def _post_process(self, total_weights, total_inputs):
 @register_property_map("exposure_time")
 class ExposureTimePropertyMap(BasePropertyMap):
     """Exposure time property map."""
+    description = "Exposure time"
+    unit = "s"
 
     def _compute(self, row, ra, dec, scalings, psf_array=None):
         return row.getVisitInfo().getExposureTime()
@@ -418,6 +420,8 @@ def _compute(self, row, ra, dec, scalings, psf_array=None):
 @register_property_map("psf_size")
 class PsfSizePropertyMap(BasePropertyMap):
     """PSF size property map."""
+    description = "PSF size"
+    unit = "pixel"
     requires_psf = True
 
     def _compute(self, row, ra, dec, scalings, psf_array=None):
@@ -427,6 +431,7 @@ def _compute(self, row, ra, dec, scalings, psf_array=None):
 @register_property_map("psf_e1")
 class PsfE1PropertyMap(BasePropertyMap):
     """PSF shape e1 property map."""
+    description = "PSF e1"
     requires_psf = True
 
     def _compute(self, row, ra, dec, scalings, psf_array=None):
@@ -436,6 +441,7 @@ def _compute(self, row, ra, dec, scalings, psf_array=None):
 @register_property_map("psf_e2")
 class PsfE2PropertyMap(BasePropertyMap):
     """PSF shape e2 property map."""
+    description = "PSF e2"
     requires_psf = True
 
     def _compute(self, row, ra, dec, scalings, psf_array=None):
@@ -445,6 +451,7 @@ def _compute(self, row, ra, dec, scalings, psf_array=None):
 @register_property_map("n_exposure")
 class NExposurePropertyMap(BasePropertyMap):
     """Number of exposures property map."""
+    description = "Number of exposures"
     dtype = np.int32
 
     def _compute(self, row, ra, dec, scalings, psf_array=None):
@@ -465,6 +472,8 @@ def validate(self):
 @register_property_map("psf_maglim")
 class PsfMaglimPropertyMap(BasePropertyMap):
     """PSF magnitude limit property map."""
+    description = "PSF magnitude limit"
+    unit = "mag(AB)"
     requires_psf = True
 
     ConfigClass = PsfMaglimPropertyMapConfig
@@ -483,6 +492,9 @@ def _post_process(self, total_weights, total_inputs):
 @register_property_map("sky_background")
 class SkyBackgroundPropertyMap(BasePropertyMap):
     """Sky background property map."""
+    description = "Sky background"
+    unit = "nJy"
+
     def _compute(self, row, ra, dec, scalings, psf_array=None):
         return scalings*row["skyBg"]
 
@@ -490,6 +502,9 @@ def _compute(self, row, ra, dec, scalings, psf_array=None):
 @register_property_map("sky_noise")
 class SkyNoisePropertyMap(BasePropertyMap):
     """Sky noise property map."""
+    description = "Sky noise"
+    unit = "nJy"
+
     def _compute(self, row, ra, dec, scalings, psf_array=None):
         return scalings*row["skyNoise"]
 
@@ -497,6 +512,8 @@ def _compute(self, row, ra, dec, scalings, psf_array=None):
 @register_property_map("dcr_dra")
 class DcrDraPropertyMap(BasePropertyMap):
     """Effect of DCR on delta-RA property map."""
+    description = "Effect of DCR on delta-RA"
+
     def _compute(self, row, ra, dec, scalings, psf_array=None):
         par_angle = row.getVisitInfo().getBoresightParAngle().asRadians()
         return np.tan(np.deg2rad(row["zenithDistance"]))*np.sin(par_angle)
@@ -505,6 +522,8 @@ def _compute(self, row, ra, dec, scalings, psf_array=None):
 @register_property_map("dcr_ddec")
 class DcrDdecPropertyMap(BasePropertyMap):
     """Effect of DCR on delta-Dec property map."""
+    description = "Effect of DCR on delta-Dec"
+
     def _compute(self, row, ra, dec, scalings, psf_array=None):
         par_angle = row.getVisitInfo().getBoresightParAngle().asRadians()
         return np.tan(np.deg2rad(row["zenithDistance"]))*np.cos(par_angle)
@@ -513,6 +532,8 @@ def _compute(self, row, ra, dec, scalings, psf_array=None):
 @register_property_map("dcr_e1")
 class DcrE1PropertyMap(BasePropertyMap):
     """Effect of DCR on psf shape e1 property map."""
+    description = "Effect of DCR on PSF shape e1"
+
     def _compute(self, row, ra, dec, scalings, psf_array=None):
         par_angle = row.getVisitInfo().getBoresightParAngle().asRadians()
         return (np.tan(np.deg2rad(row["zenithDistance"]))**2.)*np.cos(2.*par_angle)
@@ -521,6 +542,8 @@ def _compute(self, row, ra, dec, scalings, psf_array=None):
 @register_property_map("dcr_e2")
 class DcrE2PropertyMap(BasePropertyMap):
     """Effect of DCR on psf shape e2 property map."""
+    description = "Effect of DCR on PSF shape e2"
+
     def _compute(self, row, ra, dec, scalings, psf_array=None):
         par_angle = row.getVisitInfo().getBoresightParAngle().asRadians()
         return (np.tan(np.deg2rad(row["zenithDistance"]))**2.)*np.sin(2.*par_angle)
@@ -529,6 +552,9 @@ def _compute(self, row, ra, dec, scalings, psf_array=None):
 @register_property_map("epoch")
 class EpochPropertyMap(BasePropertyMap):
     """Observation epoch (mjd) property map."""
+    description = "Observation epoch"
+    unit = "day"
+
     def _compute(self, row, ra, dec, scalings, psf_array=None):
         date = row.getVisitInfo().getDate()
         return date.get(date.MJD)