diff --git a/gracedb/query.py b/gracedb/query.py
index 0dc59f6cfb33eb1a80fc463f77106133e40ec8ad..c6420c7319d3c1d09f55f41eafe5e95811295385 100644
--- a/gracedb/query.py
+++ b/gracedb/query.py
@@ -62,7 +62,7 @@ gpsQ = gpsQ.setParseAction(maybeRange("gpstime"))
 
 # run ids
 runmap = {
-    "ER3" : (1044136816, 1100000000),  # Feb 5 16:00:00 CST 2013 - ??
+   "ER3" : (1044136816, 1045785616),  # Feb 5 16:00:00 CST 2013 - Mon Feb 25 00:00:00 GMT 2013
    #"ER2" : (1026061216, 1028480416),
    #"ER2" : (1026069984, 1028480416),  # soft start
     "ER2" : (1026666016, 1028480416),  # Jul 18 17:00:00 GMT 2012 - Aug 8 17:00:00 GMT 2012