Fix typo in docs: alt->dec

lsst · Jul 5, 2018 · 9fbaca6 · 9fbaca6
1 parent 84353ae
commit 9fbaca6
Showing 1 changed file with 4 additions and 4 deletions.
diff --git a/python/lsst/meas/algorithms/loadReferenceObjects.py b/python/lsst/meas/algorithms/loadReferenceObjects.py
@@ -170,11 +170,11 @@ class LoadReferenceObjectsTask(pipeBase.Task, metaclass=abc.ABCMeta):
     - resolved (optional): is the object spatially resolved?
     - variable (optional): does the object have variable brightness?
     - coord_raErr: uncertainty in `coord` along the direction of right ascension (radian)
-                    = uncertainty in ra * cos(alt); nan if unknown
+                    = uncertainty in ra * cos(dec); nan if unknown
     - coord_decErr: uncertainty in `coord` along the direction of declination (radian); nan if unknown
     The following are optional, but should either all be present or all absent:
     - epoch: date of observation (TAI MJD)
-    - pm_ra: proper motion along the direction of right ascension (milliarcsecond/year) = dra/dt * cos(alt)
+    - pm_ra: proper motion along the direction of right ascension (milliarcsecond/year) = dra/dt * cos(dec)
     - pm_dec: proper motion along the direction of declination (milliarcsecond/year)
     - pm_raErr: uncertainty in `pm_ra` (milliarcsecond/year); nan if unknown
     - pm_decErr: uncertainty in `pm_dec` (milliarcsecond/year); nan if unknown
@@ -386,7 +386,7 @@ def makeMinimalSchema(filterNameList, addFluxSigma=False,
         schema.addField(
             field="coord_raErr",
             type=numpy.float64,
-            doc="uncertainty in coord along the direction of right ascension = uncertainty in ra * cos(alt)",
+            doc="uncertainty in coord along the direction of right ascension = uncertainty in ra * cos(dec)",
             units="radian",
         )
         schema.addField(
@@ -405,7 +405,7 @@ def makeMinimalSchema(filterNameList, addFluxSigma=False,
             schema.addField(
                 field="pm_ra",
                 type=numpy.float64,
-                doc="proper motion in the right ascension direction = dra/dt * cos(alt)",
+                doc="proper motion in the right ascension direction = dra/dt * cos(dec)",
                 units="milliarcsecond/year",
             )
             schema.addField(