Small bug fix for RingsSkyMap.findTract().

HyperSuprime-Cam · Apr 17, 2014 · f202a77 · f202a77
1 parent 5647614
commit f202a77
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/python/lsst/skymap/ringsSkyMap.py b/python/lsst/skymap/ringsSkyMap.py
@@ -131,7 +131,7 @@ def findTract(self, coord):
             # Northern cap
             return self[-1]
 
-        ringNum = int((dec - firstRingStart) / self._ringSize - 0.5)
+        ringNum = int((dec - firstRingStart) / self._ringSize)
         tractNum =int(math.fmod(ra - self.config.raStart, 2*math.pi) /
                       (2*math.pi/self._ringNums[ringNum]) + 0.5)