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Last modified: 27 September 2006

URL: http://cxc.harvard.edu/ciao3.4/caveats/hrc_gaps.html
Hardcopy (PDF): A4 | Letter

Caveat: Time Gaps in HRC Data

Return to: Data Caveats Index

Due to an error in standard data processing (SDP) between level 0 and level 1, HRC drops ~2.05s at varying intervals. This problem affects all HRC data (-I,-S,-SI) regardless of gratings. For long observations this produces more data gaps than is necessary, which is a nuisance for Fourier transforms.

This problem was corrected in version DS 6.6 of SDP.

Hardcopy (PDF): A4 | Letter
Last modified: 27 September 2006

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