Many programs such as d*TREK (free download) can predict the actual reflns that would appear on detector given a particular experiment (crystal, spacegroup, unit cell, detector, detector position, wavelength, etc).
A quick prediction shows that one will get about 3.9-fold redundancy with the rotation method for spacegroup P1 and about 95% completeness (circle inscribed in square) for the one orientation I tested. Jim -----Original Message----- From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of john peter Sent: Tuesday, August 16, 2011 1:20 AM To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] data collection Hi All, I wish to confirm that when we collect native dataset 0-360 for a protein crystal (P1 space group) , the redundancy could very well be >2 since many reciprocal points cross Ewald sphere twice, right ? Thanks a lot. John
