For the end-of-run referenced... I get: (4549160.0-4535537.)/(4549160.0+4535537.) = 1.500e-03 That's 1500ppm.
Bigbite end-of-run isn't showing this large of asymmetry.
During transversity... we also noted a large asymmetry from this 1024Hz clock in the lumi and HAPPEX data. But it was nearly 4000ppm.
I think this 1024Hz pulser is in the RHRS, and is fanned out to the
HAPPEX crate in the Right arm, as well as to the LHRS and Bigbite DAQ.