In case a user wants to measure the count rates by him/herself, we provide a recipe at the end of this document. ![]() The count rates can also be obtained from the PPS pipeline products delivered by the SSC at Leicester. These rates, as from SAS 6.5, are corrected from all known instrumental effects, mainly coincidence losses, dead time and time sensitivity degradation. Among other products, it produces source list files where the count rates for all objects detected in an image are given. ![]() The chain omichain allows any user to process OM image data. ![]() SAS watchout How can I convert from OM count rates to fluxes?Īny XMM-Newton users, who need to convert OM count rates in the optical and UV filters into fluxes (expressed, e.g., in erg/cm/cm/s/A), can do it by following any of the methods we outline below.
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