High-Level Trigger path information HLT_L2Mu20_eta2p1_NoVertex (NoBPTX, SingleMu datasets).
first seen online on run 190456 (/cdaq/physics/Run2012/5e33/v4.4/HLT/V5)
last seen online on run 209151 (/cdaq/special/25ns/v1.1/HLT/V2)
V1: (runs 190456 - 196531) seeded by: L1_SingleMu16er
V2: (runs 198022 - 209151) seeded by: L1_SingleMu16er
See also the full list of triggers for CMS 2012 open data:Trigger information for 2012 CMS open data