This is a 'pass-dependent' statement
Correction factors per pass:
- 1st pass: x1.0018
- 2nd pass: x1.0025(5)
- 3rd pass: x1.003
- 4th pass: x1.003
- 5th pass: x1 (no scale needed)
Taken from talk by Doug Higinbotham at the Joint Hall A & C Data Analysis Workshop (June 2018) slide 12. Or alternatively, see slide 13 here. These slides don't have the second pass correction factor. This one I got directly from Doug.