Re: [ccp4bb] data processing deviations chisq

2011-03-25 Thread Debajyoti Dutta
Hi all, Thank you all how have replied for their kind suggestions and diagnosis of collected data. sincerely Debajyoti On Sat, 26 Mar 2011 04:44:42 +0530 wrote > > Hi all, > > I have collected one iodine soaked data in our home source, and processing the data using HKL2000. Exposure tim

Re: [ccp4bb] data processing deviations chisq

2011-03-25 Thread Zbyszek Otwinowski
The most likely explanation is that you have a cracked crystal or your crystal has split from radiation damage around the frame 70. If you had a cracked crystal from the start, the spot overlap between crystals would change when the sample was rotated. In such cases, it may happen that the program

[ccp4bb] data processing deviations chisq

2011-03-25 Thread Debajyoti Dutta
Hi all, I have collected one iodine soaked data in our home source, and processing the data using HKL2000. Exposure time per frame is 5min/1 degree. While processing I have noticed that the Chisq values, cell parameters and rotation change Vs frame are deviating like anything. Please find the p